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TimeToRetire.co.uk

Time to Retire

Find out exactly when you can afford to stop working. A UK retirement planning tool and pension calculator — built for real people, not advisers.

Getting started

✓ All done. Your plan is saved on this device.
✓
1. Enter your details on Inputs
Ages, pensions, savings and the income you'd like. Have your pension statements and State Pension forecast to hand.
Open Inputs →
✓
2. See your plan on Summary
Your plan in plain words. Then explore the charts on the other pages and try the sliders.
Open Summary →
✓
3. Keep a copy of your plan
Your numbers are saved only in this browser. Copy your plan's code and paste it into Notes or an email to yourself.
Save a copy →
ℹ️

Not financial advice

Time to Retire is a planning and modelling tool — it helps you understand your financial position and explore retirement scenarios. It does not constitute regulated financial advice under the Financial Services and Markets Act 2000 and is not authorised or regulated by the FCA. All projections are illustrative, based on your own inputs, and do not account for all tax changes or personal circumstances. For advice specific to your situation, please consult a qualified independent financial adviser.

© 2026 TimeToRetire.co.uk · Not regulated financial advice
🔒 This is a sample household, so these inputs are locked. Use the sliders on the Combined, Scenarios, Compare and Gifting pages to see how the plan changes. To enter your own figures, unlock the full tool.
💾 Auto-saving to this browser
✓ Saved
Quick Summary of Assets & Income — from inputs below
DC Pensions Cash, ISA & Shares Total DC & Cash Busi­ness House DB & State Pension / yr
Husband £0 £0 £0 £0 — £29,500
Wife £0 £0 £0 — — £18,500
Total £0 £0 £0 £0 £0 £48,000
👤 Household Type
Two people, full spousal IHT exemption, combined NRB/RNRB on 2nd death
👤
About You & Planning Ages→ timeline, income phases, survivorship▼
AssumptionHusbandWifeJoint/Notes
First Name
—
Date of Birth
////
—
Retirement Age
—
Plan to Age
The age the plan runs to. A longer age is more cautious.
34 yrs
Number of Children / Beneficiaries
Used to show what each one inherits
🏭
State Pension→ guaranteed income, taxable income base▼
AssumptionHusbandWifeCombined
State Pension Age
Usually 67, rising to 68 later. Check yours on GOV.UK.
—
Annual State Pension (today's £)
Full new State Pension is £12,548 (2026/27). Check your forecast on GOV.UK.
£25,000
📈
Defined Contribution / SIPP Pension Pots→ asset stack, drawdown hierarchy, Monte Carlo, IHT post-2027▼
AssumptionHusbandWifeTotal
Pension Pots — DC / SIPP (£)
All workplace and personal pots (not final salary)
£0
Defensive Pot (£)
Pension Contributions per Year Until Retirement (today's £)
You plus your employer, per person
Pre-retirement only
Total DC / SIPP
£1,481,000
£360,000
£1,841,000
🏛
Defined Benefit Pensions (Final Salary Scheme)→ guaranteed income floor, survivor base, LSA calculation▼
AssumptionHusbandWifeCombined
Annual DB Pension (today's £)
After any tax-free lump sum is taken
£23,000
DB Tax-Free Lump Sum (£)
Cash paid when the pension starts, if you take one
£0
DB Start Age
—
Survivor Benefit (%)
Share paid to your spouse after you die (often 50%)
—
Yearly Increase
See your scheme statement
—
💵
Cash & Cash Equivalents→ drawdown hierarchy, PSA calculation, IHT estate▼
AssumptionHusbandWifeTotal
Current Cash Savings (£)
Bank and savings accounts
£0
Cash Saved per Year Before Retiring (today's £)
From age
For yrs
Premium Bonds (£)
£0
Premium Bond Prize Rate (%)
NS&I's rate is 4.35%. Most holders get less, about 4% over time. Prizes are tax-free.
4.35%
Premium Bond Limit (£ per person)
Only change if NS&I changes it
£50,000
💰
ISA Investments (Cash and Stocks & Shares)→ drawdown hierarchy, asset stack, ISA annual limit▼
AssumptionHusbandWifeTotal
Current Cash ISA (£)
Tax-free cash savings
£0
Current Stocks & Shares ISA (£)
Tax-free investments
£0
Total ISA (Cash + Stocks & Shares)
£0
£0
£0
Cash ISA Paid In per Year (from cash savings)
From April 2027: up to £12,000 a year if under 65. £20,000 overall limit each.
Same window for both rows below
From age (age 57/61)
For yrs (ongoing)
Stocks & Shares ISA Paid In per Year (from cash savings)
Shares the same £20,000 limit
🏠
Property→ IHT estate, RNRB eligibility▼
AssumptionHusbandWifeJoint / Total
Value of House / Property (£)
Today's estimate
Outstanding Mortgage (£)
Mortgage — Years Remaining
Leave blank if interest-only
Property Ownership Split (%)
Only matters for unmarried couples
N/A
N/A
100%
🎉
Lifestyle Income Targets (Net, Today's £)→ drawdown engine, net income vs target chart▼
Phase Boundaries — drag the handles to adjust when each phase starts
Phase & Age RangeAnnual Net Target (Today's £)
Income target starts when…
If one of you is still working, choose the later
Phase 1 — Active Retirement
Retirement to age 65
Husband: 58–64  ·  Wife: 62–64
Phase 2 — Early Retirement
Age 65–70
Husband: 65–69  ·  Wife: 65–69
Phase 3 — Mid Retirement
Age 70–75
Husband: 70–74  ·  Wife: 70–74
Phase 4 — Late Retirement
Age 75+
Husband: 75+  ·  Wife: 75+
Income Needed After First Death (%)
Share of the target the survivor needs, e.g. 75%
e.g. £85k → £63,750
✨
Optional Inputs — complete only if relevant
These sections are not required for the core projection to run. Add detail here if care costs or property drawdown are relevant to the plan.

Combined — Assets by Type (£ Today's Money)

Combined — Gross Income by Source (£ Today's Money)

Combined — Total Income Tax Paid by Band

Combined — Net Income vs Target (£ Today's Money)

Portfolio Stress Test — Monte Carlo Simulation (400 Paths)

Click tab to compute

Husband — Assets by Type (£ Today's Money)

Husband — Gross Income by Source (£ Today's Money)

Husband — Income Tax Paid by Band

Husband — Net Income Received (£ Today's Money)

Wife — Assets by Type (£ Today's Money)

Wife — Gross Income by Source (£ Today's Money)

Wife — Income Tax Paid by Band

Wife — Net Income Received (£ Today's Money)

Total Liquid Portfolio (Excl. Property) — All Scenarios (Today's Money)
ⓘ Each scenario runs your whole plan with a fixed run of share returns; cash, Premium Bonds, Cash ISA and the Defensive Pot keep their own rates. Illustrations of what could happen, not forecasts or probabilities.

🔀 Scenario Comparison · all values today's money

Load a saved scenario into A or B independently, or save the current one ⓘ
Assumption A Scenario A B Scenario B
Pension Growth Return
6.0%
6.0%
Inflation
3.0%
3.0%
Husband Retirement Age
58
60
Wife Retirement Age
60
62
Husband Death Age
92
92
Wife Death Age
92
92
Net Income Target
Net income target, today's money. The phase ages come from the Inputs page.
£90k
£80k
Net Income Target
£90k
£80k
Net Income Target
£90k
£80k
Net Income Target
£90k
£80k
Cash Reserve
A flat reserve in today's money, matching the Inputs page.
£0
£0
Annual Gift
£0k
£0k
Funding Model
Which pot is drawn first. The Drawdown Tax Band Limit for each method is set on Inputs and applies to both sides.

Total Liquid Portfolio (Excl. Property, Today's £)

Gross Income by Source (Today's £)

Total Income Tax Paid (Today's £)

Net Income vs Target (Today's £)

🏛️ Estate & IHT Impact at 2nd Death · today's money

Loading inheritance summary…
Loading sensitivity tables…

📋 Model Assumptions & Methodology

All key assumptions, calculation rules and simplifications used in this cashflow model

🔄 Annual Assumptions Review
This model can't fetch live data from inside the browser — there's no reliable, structured source for current tax rules or annuity rates it could safely pull from automatically. What it can do is show you everything that's hardcoded, so once a year you can bring this list to whoever maintains the model and have each item checked and updated.
🎯 Lump Sum Allowance (LSA) — £268,275 per person Auto-calculated from DB inputs

The LSA caps the total tax-free lump sum any individual can receive from all pension sources in their lifetime. DB tax-free lump sums (entered on Page 1) are deducted first; the remainder is available for DC PCLS. This is a calculation output — there are no inputs to set here.

Husband
LSA Cap£268,275
Less DB TFLS used– £0
Remaining for DC PCLS (day 1)£268,275
Projected DC PCLS used over whole plan£0
Utilisation (projected, end of plan)
Wife
LSA Cap£268,275
Less DB TFLS used– £0
Remaining for DC PCLS (day 1)£268,275
Projected DC PCLS used over whole plan£0
Utilisation (projected, end of plan)
🏛️ IHT Settings — Finance Act 2026
Undrawn DC pensions included in IHT estate
Under Finance Act 2026, undrawn DC pension pots will form part of the taxable estate from April 2027. This model applies the post-2027 rules as the default planning position.
✓ Always on (post-2027)
📋 What is (and isn't) taxable — at a glance
ISA — no income tax on inheritance
ISA assets pass free of income tax regardless of the beneficiary's tax band. IHT applies in the normal way (above NRB/RNRB). From 6 April 2027 ISAs are included in the IHT estate.
Cash savings — no income tax
Capital transfers are not income. Cash passes to beneficiaries free of income tax; only IHT applies above the nil-rate bands.
Property — no income tax; RNRB may apply
The main residence qualifies for the Residence NRB (£175k each / £350k combined) when passed to direct descendants, reducing IHT. Capital gains from date of death are also wiped on uplift.
DC pension — ⚠️ double tax hit (post-2027)
Under Finance Act 2026 (from April 2027) undrawn DC pots form part of the IHT estate at 40%. The remainder is then subject to income tax when beneficiaries draw it, using full UK band stacking on top of their existing income — not a fixed rate. A faster lump-sum withdrawal pushes more into higher bands; a phased drawdown over several years keeps more in lower bands and reduces the effective rate.
ℹ️ All figures in today's money · base projection only · gifting strategy applied · NRB £325k + RNRB £175k each assumed. Pension income tax rates are illustrative — actual rates depend on each beneficiary's total income in the year of drawdown.
📐 Return & Growth Assumptions

All portfolio growth is modelled in real (inflation-adjusted) terms so balances are directly comparable across time. Important: the model tracks pools internally in nominal £ (needed for correct UK tax-band calculations) and deflates back to today's money for display — it does not separately compound inflation on top of the growth rate sliders. This means each slider must be entered as a nominal rate. The defaults below reflect a deliberately cautious default posture chosen for this tool.

DC Growth Pot return Default 6.0% nominal p.a. → ≈2.9% realConfigurable
Balanced default — still below the long-run historical range supported by the Barclays Equity Gilt Study (UK equities ~5% real) and global equity estimates, leaving room for fees and a mix of assets. The Conservative button sets 4.5%, Aggressive 8.0%
DC Defensive Pot return Default 4.0% nominal p.a. → ≈1.0% realConfigurable
Within the range supported by Barclays long-run UK gilt/cash real returns (~0.6%–1.4%)
Stocks & Shares ISA return Default 6.0% nominal p.a. → ≈2.9% realConfigurable
Balanced default, set to match the DC Growth Pot — just below the Barclays 50/50 equity/gilt blend long-run average (~3.1% real)
Cash ISA return Default 3.0% nominal p.a. → ≈0.0% realConfigurable
Broadly tracking inflation — compare against current best-buy cash ISA rates
Cash return Default 2.5% nominal p.a. → ≈-0.5% realConfigurable
Close to Barclays' 124-year UK cash real return (~0.6%), slightly below given current savings rates
Property growth Default 3.0% nominal p.a.Configurable
Conservative default — house prices tracking general inflation; adjust on Page 1 if a real uplift (or decline) is expected
All returns are in real terms Yes — today's money throughout, for every output
The growth rate sliders themselves are the exception: they take a nominal input, which the model deflates internally — see the Return & Growth Assumptions above for each default's real-terms equivalent

Investment Risk Profile buttons (Conservative/Balanced/Aggressive) set DC Growth Pot, DC Defensive Pot and Stocks & Shares ISA together — Balanced matches the defaults above (6.0% / 4.0% / 6.0%), Conservative steps down to 4.5% / 3.5% / 4.5%, Aggressive up to 8.0% / 4.5% / 8.0%. All kept in nominal terms, matching the sliders themselves, rather than converted from a real-return target, to avoid mixing nominal and real figures on the same control. Cash, Cash ISA, Inflation and House Price Growth are untouched by these buttons — none of them are a risk-appetite choice the way equity exposure is.

💰 Pension Drawdown Optimiser

The engine tests every possible husband/wife DC drawdown split each year and selects the most tax-efficient combination.

DC drawdown split 101-step optimizer per year
Tests every 1% H/W split from 0% to 100%
Optimisation criterion 1 Maximise combined net income
Primary goal — meet income target
Optimisation criterion 2 Minimise combined income tax
Tiebreaker when income target met
Optimisation criterion 3 Pot-proportional draw
Final tiebreaker to balance depletion
PCLS (tax-free cash) 25% of crystallised pot
Up to LSA cap of £268,275 (or up to full pot). Each regular ad-hoc withdrawal is blended 25% tax-free / 75% taxable in this way — the mechanism providers call UFPLS (Uncrystallised Funds Pension Lump Sum) — rather than a single upfront crystallisation event.
LSA cap £268,275 per person (Lump Sum Allowance)
Replaced the old £1,073,100 Lifetime Allowance, abolished April 2024. DB TFLS is deducted first; the remainder is available for DC PCLS — see LSA Summary above.
DC drawdown taxation Taxable income at marginal rate
Added to DB, SP and other income before tax
Band-fill acceleration 3-year look-ahead, routes to ISAConfigurable
Fills basic-rate band in early years; surplus to ISA
💰 Pension Crystallisation

Models a one-off decision to crystallise part of the DC pot — tax-free cash now, taxable remainder drawn down gradually afterwards. This is the industry's flexi-access drawdown (FAD) route to PCLS, and combining it with the regular UFPLS-style drawdown above (e.g. crystallise a slice now for a specific purpose, continue blended withdrawals from the rest) is what advisers typically mean by a hybrid tax-free cash strategy — both draw on the same shared £268,275 LSA, so the model tracks usage correctly across both.

Tax-free cash taken 25% of the crystallised amountConfigurable
Capped by remaining LSA and pot size, same logic as the regular drawdown's PCLS
Crystallised pot drawdown Drawn before the regular pot, 100% taxable
No further tax-free entitlement on it, so there's no benefit to leaving it untouched — the regular pot is left alone for as long as possible instead
Growth & pot order Same rate as the DC Growth Pot
Funded from Growth Pot first, then Defensive Pot, when the event fires
Events per person One onlyConfigurable, off by default
Age and amount set on Page 1; amount of 0 skips entirely
IHT treatment Counts the same as the regular DC pot
Crystallisation status makes no difference post-2027 — both included identically in the estate
🏛️ Pension to Annuity Conversion

Models a one-off decision to convert part of the DC pot into a guaranteed lifetime income, becoming DB-style income from the chosen age.

Tax-free cash first Default Yes — 25% cash, 75% buys the annuityConfigurable
The standard market approach; can be switched off to annuitise the full amount for a higher but fully taxable income
Indicative rate table ⚠️ Example only Age-interpolated, level single-life baseEditable
4.3% at 55 rising to 15.0% at 85, reflecting broad UK market levels as of June 2026 — not a quote. Always get personalised advice and compare actual provider rates before purchasing.
Rate adjustments Survivor % and escalation reduce the base rate
Up to −15% at 100% survivor continuation; escalation multipliers ≈ ×0.625 (RPI/CPI-linked), ×0.70–0.75 (CPI capped 5%/2.5%), ×0.72 (fixed 3%) relative to a level annuity
Survivor continuation Chosen % continues to the survivor from first deathConfigurable, default 50%
A directly-nominated joint life, unlike DB occupational schemes — applies regardless of household type, including Unmarried Couple
Events per person One onlyConfigurable, off by default
Already-purchased annuities should be entered as DB income instead — this section is for modelling a future decision
IHT treatment ⚠️ Leaves the estate entirely once purchased
The key difference from crystallising — converted into a right to income, not a transferable asset, so it's excluded from the IHT calculation either way, confirmed against the April 2027 rules
🏦 DB & State Pension

Defined benefit income is treated as guaranteed and does not deplete with market returns.

DB escalation types CPI uncapped, CPI capped 2.5% or 5%, Fixed 3%, NilConfigurable
DB escalation base Measured from pension commencement date
Not from model year 0
DB survivor pension Default 50% of member pensionConfigurable
Paid to surviving spouse on first death
DB tax-free lump sum Tracked against £268,275 LSA per person
State pension £12,548/yr per person from age 67Configurable
Currently the full new state pension rate (2026/27: £241.30/wk)
State pension escalation Assumed to track CPI (not triple lock)
Conservative assumption for long-run modelling
🪣 Bucket Strategy & Drawdown Hierarchy

The three-pot model separates short, medium and long-term money to manage sequence-of-returns risk.

Cash & Premium Bonds Short-term spending reserve — a flat £ amount you set, not a number of years
Cash savings drawn first (its interest is taxable), then Premium Bonds and Cash ISA by lowest expected return, then the Non-ISA Stocks & Shares holding, with S&S ISA pinned last. All drawn before pensions under Traditional Drawdown, the default method.
DC Defensive Pot Medium-term bridge (0–20 yrs, default 3), with an optional start and end age
Refilled from Growth Pot; used after cash. Runs for the whole plan unless you set an end age.
DC Growth Pot Long-term growth equity
Refills Defensive Pot; subject to investment returns
Business / Other Assets Illiquid until sale age — held as estate asset until then
Entered as net value after CGT/BADR. Grows at a user-set rate. On reaching the sale age, full proceeds convert to the cash pool in one year. Included in the IHT estate until sold. Does not participate in the drawdown hierarchy — it is a passive asset until the sale event triggers.
Premium Bonds Treated as liquid cash equivalent — tax-free prize income
Grows at the user-set prize rate (default 4.35% — NS&I stated rate from the September 2026 draw; a typical £50,000 holding gets about 3.8% in a year and about 4.0% on average over 20 years; smaller holdings get less), prizes reinvested. Drawn after cash (its interest is taxable, so spending it first is worth more than its headline rate), then ranked against the Cash ISA by lowest expected return. Included in the IHT estate, capped at the NS&I limit — £50,000 per person, not index-linked, adjustable on Page 1 — with any excess paid into cash. Bonds are not inherited: on death a holder's bonds are cashed in rather than passing to the survivor.
Future savings contributions Four separate annual contribution streams — two stop at retirement, two do not
Stop at each person's own retirement age: Future DC Contributions (into the DC Growth Pot) · Future Cash Savings (into the cash pool).
Run for as long as their window says, retired or not: Future ISA Contributions (Cash and S&S) and Future Non-ISA Contributions, all moved from cash savings into the respective wrapper. Leave the duration blank to run to the end of the plan — usually right, since paying into an ISA in retirement is still worth doing.
Three of the four — ISA, Non-ISA and cash savings — accept a From/For window to start or stop mid-plan. DC contributions have no window: they run from year one to retirement and can't be started or stopped part-way. All four end at that person's death: a contribution moves one person's own money into their own wrapper, so it is never redirected to the survivor.
When the income target starts Defaults to the LAST of the two retirement agesCHANGEABLE
Before retirement the model assumes employment income covers spending. Starting the target at the FIRST retirement would abandon that assumption while the second person still earns a salary the model doesn't represent — demanding the full household target from the portfolio, funded by whichever pot is accessible. Switch to the first retirement age on the Income Targets section if the earlier retiree was the main earner.
Timing & age convention Whole years only, indexed to Person 1's age
Every projection step is a full year, anchored to Person 1's age — Person 2's events sit at the fixed age gap between them. There's no part-year proration: retiring in April rather than December lands in the same projection year. Entering a date of birth sets Person 1's current age exactly and re-derives it every time the file is opened, so a scenario saved a year ago comes back correctly advanced rather than frozen. Person 2's age is not read off their own date of birth — it's Person 1's age plus the whole-year gap between the two dates, so between the two birthdays Person 2's age can read a year above their literal age. This keeps the gap fixed, so Person 2's State Pension and DB start never move with when the file was opened. Date of birth is an input aid only — nothing else reads it, and a scenario saved with an age but no date of birth behaves exactly as before. For anything that genuinely turns on a mid-year date, such as a final part-year of salary, model it as a one-off income in the relevant year rather than as a retirement month.
Drawdown order Depends on which of the three drawdown methods is appliedConfigurable
The savings ladder. Cash first (the only pot whose interest is taxable, so spending it first is worth more than its headline rate), then Premium Bonds and Cash ISA ranked by lowest expected return from your own growth assumptions, then Non-ISA Stocks & Shares, then Stocks & Shares ISA last. The bottom two are pinned regardless of ranking — same expected return, but Non-ISA is taxed on its income and gains where the ISA isn't, so pinning the pair at the bottom means a cautious equity assumption can never make the model sell your investments first. Ranking is fixed once at the start of a projection from your assumption sliders, never re-derived from year-to-year simulated returns.

Three methods, chosen on the Combined page (configured on Page 1's Pension Drawdown & Inheritance Settings).
Traditional Drawdown (default): DB/State Pension funds the target first; any gap is met from the savings ladder, then the DC pension (Defensive → Growth, optimised) as a last resort.
Pension First Drawdown: DC pension runs first, then the savings ladder picks up the rest — preserving savings for beneficiaries, since unused pensions join the IHT estate from April 2027. Suits larger estates with pension wealth surplus to lifetime needs.
Pension First with ISA Recycling: as above, plus a second stage — further DC pension is drawn into whatever tax-band space the first stage left unused, and the surplus is paid into the Stocks & Shares ISA rather than spent, moving money out of the taxed pension without raising what you live on.

Each method has its own Drawdown Tax Band Limit — the tax band the DC draw may reach (Personal Allowance, Basic, Higher or Additional), or Automatic, which uses your beneficiary tax band. Traditional also offers None, leaving the order above untouched; any other band makes its own DC block run before the ladder, the same mechanism Pension First uses.
The limit is a tax preference, not a spending limit: your income target and Cash Reserve come first. Once savings above the Cash Reserve are used up, DC pension is drawn above the limit (paying more tax) to keep income on target, before the Reserve is touched.
The Cash Reserve floor is soft: breached rather than leaving income unmet, down the same ladder in the same order. Wherever the model displays the drawdown order for a specific calculation (e.g. Page 8's reasoning panel), it reflects whichever method is actually selected, not a fixed default.
Downturn Protection Two separate controls — Cash Reserve (a £ amount) + DC Defensive Pot (years, or a £ amount)Configurable
The two protect against different things, which is why they are sized and set differently.

The Cash Reserve is a flat amount in today’s money. Set a figure and the model holds that much purchasing power back from drawdown for the whole plan — it doesn't grow, shrink or step down with your income target. It covers cash, Premium Bonds and the Cash ISA together; the Stocks & Shares ISA sits outside it. You can also set a minimum bank-cash floor within it, so a bill never forces an ISA sale. A flat amount is deliberate: sizing a reserve in years gives it no fixed value — it shrinks as the income target steps down and empties out near the assumed death age, which is not what an emergency reserve is for. A reserve that shrinks is not a reserve.

The DC Defensive Pot is sized in years, because it represents lower-risk pension holdings, and a bond or gilt can't mature after the plan ends. It's genuinely forward-looking — each look-ahead year’s real need (income target with phase step-downs, plus any care or one-off costs landing that year) is summed, not one year's figure multiplied. It can also be set as a direct £ amount, converted back to the equivalent fractional years — useful if you hold a defensive allocation of known size. The £ figure shown is the FIRST drawing year’s target, labelled at first draw, since a declining schedule costs less each year as DB and State Pension come into payment; it is not a fixed holding. A ladder sized to each year’s own (typically shrinking) need covers more calendar years than that conversion implies, since it divides by the largest (first retirement year’s) draw — the model’s figure is the conservative one.

How long the programme runs is a separate setting from how much it holds. The years slider sets the size; Programme runs from / to ages set how long it's maintained, shown under that person’s own name. Leave them blank and it behaves as always — building once retirement is within the window, rebuilt every year to plan end. Set an end age and the window shortens by a year each year instead of switching off, so the holding winds down and each maturing slice returns to the Growth Pot — what a real bond or gilt ladder does. A start age delays the programme, e.g. if the holding hasn't been bought yet.

Both exclude gifting (discretionary, not a must-cover need) and the survivor income step-down — neither shrinks just because one of you has died, since you don't know in advance how long the survivor will live. Three things draw on the reserve and they aren't treated alike. A gift is hard: it may draw reserve-eligible pots only down to the reserve — what it cannot take from them it takes from outside the reserve instead, Non-ISA first then the Stocks & Shares ISA, and is trimmed only once those are exhausted too (a gift you choose to pay from the pension never touches the reserve — see Gifts paid from the pension) — so raising the reserve usually changes which pot a gift comes out of rather than whether it happens, and pushing a gift from cash into a growth pot costs the growth-rate difference for the rest of the projection, often more than the reserve does to income drawdown. ISA and Non-ISA contributions are hard too, against both the reserve and the minimum bank cash — a contribution is money you've chosen to move, not a bill, so it's capped at whatever sits above the floor. Income is soft: the reserve is a preference, breached rather than leaving you short.

Why the £ figures aren't comparable. The Cash Reserve is measured against total household spending need; the DC Defensive Pot against the DC draw only — the need remaining after DB and State Pension, taken in full without regard to any drawdown cap. Where a cap means part of that need is actually funded from ISA or cash, the Defensive Pot is still sized on the whole of it and so is larger than the pension draw it protects. Whether that's the right basis is a live question — sizing on the pension slice alone would assume the ISA and cash used instead are themselves defensive, which on an equity ISA they aren't. On a plan with substantial guaranteed income, the same number of years implies a much smaller £ figure on the Defensive Pot than on the Reserve.

Where cash returns sit below inflation, a flat real reserve drifts below the figure you set even in years nothing is drawn from it — the panel flags this when your own assumptions imply it.
Growth → Defensive refill Years set by the DC Defensive Pot slider (default 3) — applies both before and during retirement
Beyond the DC Defensive Pot window, no buffer is held at all — nothing to protect against a downturn for yet, so the full pot stays in the higher-growth Growth Pot. Once within that window, the Defensive Pot starts pre-building toward the real net income need (target income, net of anticipated DB/State Pension) for the first N years of retirement — split between each person's own pot by who is projected to draw that income (each held inside the drawdown cap, then whoever pays less tax, then by pot size) — so a crash landing exactly at retirement doesn't force selling Growth Pot assets. The same declining schedule then continues, shrinking as DB and State Pension come in and winding down to nothing by plan end, with any excess released back to Growth. Runs for the whole of retirement unless you set an end age on the DC Defensive Pot control, in which case the look-ahead window shortens by a year each year until the pot empties at that age; a start age delays the programme beginning. Models a pre-retirement de-risking glide path plus an ongoing rebalancing programme.
Band-fill acceleration Always on, 3-year look-ahead, no on-screen control
Each year the model checks whether your marginal tax rate is projected to be higher three years from now. If so, it draws a little extra from the DC Defensive Pot only (never the Growth Pot) to fill the rest of the current tax band, and shelters the net proceeds in the Stocks & Shares ISA. The 3-year window is fixed and not adjustable on screen. It only changes anything when a higher future rate is actually projected — on a flat-rate plan it never fires.
ISA draws Pro-rata by opening H/W balance
Tax-irrelevant — ISA income always tax-free
📊 Income Tax & Allowances

Tax is calculated individually for each spouse. The DC optimiser uses per-person marginal rates to find the optimal pension split.

Personal Allowance £12,570
Frozen until April 2031 (fiscal drag), then CPI-indexed
Basic rate band £0–£37,700 above PA → 20%
Higher rate threshold £50,270 gross → 40%
Frozen until April 2031, then CPI-indexed
PA taper £1 PA lost per £2 over £100k
60% effective rate from £100k–£125,140
Additional rate Over £125,140 → 45%
Personal Savings Allowance £1,000 basic rate; £500 higher; £0 add. rate
Applied per person annually
Savings income rate rise From April 2027 Cash interest taxed at 22%/42%/47% from year 2 of the plan onward
Confirmed in the Autumn Budget 2025 — a +2 point rise on savings income specifically (pension/earned income rates are unaffected). The plan starts within the 2026/27 tax year, so today's 20%/40%/45% rates still apply to year 1; the higher rates apply from year 2 onward.
PSA optimisation Cash interest attributed to lower-rate spouse first
Runs before DC optimiser — improves marginal rates
ISA income Always tax-free, no impact on PA or bands
Cash capital drawdown Not taxable income
Only interest is taxable via PSA
Fiscal drag freeze Frozen until April 2031, then CPI-indexed
🏠 Investments, Cash & Property

ISA and cash capital drawdowns have no direct tax cost. Only the interest earned on cash is taxable income. Investments held outside a wrapper are taxed on their dividends and their gains — see the Non-ISA row below.

ISA annual contribution limit £20,000 per person (£40,000 combined)Configurable
Spent by four mechanisms, each against that person’s OWN £20,000: (1) the explicit annual ISA contribution (start year/duration, Page 1); (2) surplus DB/State income above the lifestyle target; (3) Stage B recycling of pension drawn into unused tax-band space; and (4) Bed & ISA transfers out of the Non-ISA pot, which run twice — once into your own allowance, then once into your spouse’s unused room. Each reduces the room left for the ones after it in the same year, so they never double up. There is no cross-person spillover: if one person’s £20,000 is used up, their share is not redirected into the other’s.
What can cut an ISA contribution The amount you type is an intention — five things can reduce what is actually paid
The allowance itself. £20,000 per person per year, cash taking first claim and stocks the remainder, with the 2027 £12,000 cash sub-limit for under-65s.
Ends at death. It is the person's own allowance, not the household's, so it is not redirected to the survivor — a couple's £40,000 becomes £20,000 from the first death.
The cash has to be there. A contribution moves money you already hold, not new money. The cash half is settled first from cash savings; the stocks half takes only what is left — in a cash-short year the S&S half is scaled down, never skipped.
Two floors, and they bite differently. The Cash Reserve caps the S&S half only: a Cash ISA move leaves the reserve untouched — the Cash ISA is inside it — so in a tight year the Cash ISA gets first claim, while a Stocks & Shares ISA move draws on the reserve and is limited to whatever sits above it. The minimum kept as bank cash caps BOTH halves, since both are funded from bank cash — a contribution is money you have chosen to move, not a bill, so it is capped at that floor rather than allowed to spend through it.
ISA before Non-ISA. Where both are running, the ISA contribution takes its reserve headroom first and the Non-ISA contribution is limited to what remains.
ISA withdrawals Tax-free regardless of holder
No tax return impact
Non-ISA Stocks & Shares Modelled in full, per person, with dividend tax and capital gains taxConfigurable
Growth. Uses the same Stocks & Shares growth rate as the ISA, as a total return: the dividend yield you set splits it rather than adding to it — at 6% growth with a 2% yield, the shares rise 4% and pay 2% out. Without this the same fund would compound faster outside a tax wrapper than inside one.

Dividends. Taxed above the £500 allowance at 10.75% / 35.75% / 39.35% depending on your band, as the top slice of your income — after your pension income and your savings interest. The allowance is a nil-rate band rather than a deduction, so it can still push the rest of the dividend into a higher rate. Reinvesting does not avoid the tax: dividends are taxed when paid, whether spent or reinvested. Reinvesting is the default; reinvested dividends raise what you have paid for the holding, so the same money is never taxed twice.

Capital gains. Charged on disposals during your lifetime, above the £3,000 annual exempt amount, at 18% within the basic-rate band and 24% above it. Gains are worked out by pooling — one running average cost across the holding, not individual purchases — so a sale realises only the growth portion. No capital gains tax is charged on death: the holding rebases to its market value, so a gain never realised in life is never taxed, and passes to the survivor at that rebased value.

Held per person. Both taxes are individual: each person has their own holding, cost, £500 dividend allowance, £3,000 exempt amount and rate band. Money drawn from the holding is taken from each person in proportion to what they hold.

When the tax is paid. Neither tax is deducted at source. Both are a self assessment bill, worked out at the end of the tax year and paid the following January, funded in the same order as everything else — cash first, then the rest of the drawdown order.

Where it sits in the drawdown order. Immediately before the Stocks & Shares ISA. Both are the same asset at the same expected return, but this one is taxed on its income every year and again when sold, so the ISA is the more valuable pound to keep. It sits outside the Cash Reserve, like the ISA, because the reserve exists so that a market fall never forces a sale.

What is not modelled. The annual exempt amount applies only to gains the plan's own sales realise — it is not used as a funding route in its own right, so the model does not harvest a gain up to the allowance each year. The 30-day share-matching rule, the starting rate for savings, and any Business Relief are also outside the model.
Cash interest Taxable, subject to PSA
Attributed to lower-rate spouse first (PSA optimised)
Cash ownership split Starts from opening balances (50/50 if both start at £0), then updates as money enters
DB tax-free lump sums, pension crystallisation cash, and annuity-purchase cash are credited 100% to whoever it actually belongs to. Other joint inflows (interest, surplus income) are split by the resulting running ratio, not the frozen day-1 one.
Property Grows at assumed rate; not drawn downConfigurable rate
Treated as illiquid capital; protected via IIP for care
Property in IHT estate Mortgage deducted from gross valueConfigurable
Net property value used for IHT calculation
Mortgage repayment Straight-line to £0 over the years you specifyConfigurable
Affects net worth and IHT figures only — not treated as a deduction from net income. Continued repayment is assumed to be funded from your target income, not in addition to it.
🔓 Equity Release & Property Drawdown

Models releasing capital from the property, separate from regular drawdown, with interest rolling up against the property's value.

Modes None / Lump sum at a chosen age / Annual drawdownConfigurable, off by default
Interest roll-up rate Default 5.5% per yearConfigurable
Compounds against the outstanding debt — not paid off during the plan, unlike a conventional mortgage
Cash released Tax-free, added directly to the cash pool
Not income — no income tax consequence
Property & IHT Outstanding equity release debt deducted from net property value
Same net-of-debt treatment as a conventional mortgage in the IHT calculation
🎁 Inheritance Tax & Gifting

The IHT engine models cumulative gifting with annual exemption, 7-year PET taper, the RNRB taper for larger estates, gifting affordability against lifestyle/care needs, and UK band-stacked income tax on inherited pensions.

Nil Rate Band (NRB) £325,000 per person (£650,000 combined)
Fully transferable between spouses · frozen at £325,000 until April 2031, then CPI-linked (current legislation) — so it shrinks in today's money until then
Residence NRB (RNRB) £175,000 per person (£350,000 combined)
Tapers at £1 per £2 of estate above £2M (band and £2M point also frozen to April 2031, then CPI-linked); taper applies to the estate plus any gifts still within 7 years of death
IHT rate 40% on estate above combined thresholds
Annual gift exemption £6,000 combined (£3,000 per person)
Immediately exempt every year, regardless of the 7-year rule; not CPI-linked (fixed since 1981)
Gift taper relief 7-year PET taper on gifts still within 7 yrs of death
Taper relief by year band: 0–3 yrs 40% · 3–4 yrs 32% · 4–5 yrs 24% · 5–6 yrs 16% · 6–7 yrs 8% · 7+ yrs 0% (fully exempt). Gifts older than 7 years are never added back to the estate.
Gifting period Configurable Start age and amount set via sliders; end age defaults to the 2nd death (later of the two spouses)
End age can be brought forward on the IHT page (e.g. to stop before the 7-year taper window) but is hard-capped at 2nd death — gifting can never continue beyond that point
Gifting affordability Lifestyle and care spending take priority over gifting
If the portfolio can't fund everything in a given year, the gift is reduced or skipped first; only the amount actually paid out counts towards the gifting total and the 7-year PET history
Gifts paid from the pension Configurable, off by default The yearly gift and the one-off gift can each be paid from the pension growth pots instead of savings
Treated as two steps: a taxable pension withdrawal, then a gift of what is left after tax. Each withdrawal is 25% tax-free up to the remaining lump sum allowance, and the rest is taxed as that person’s income for the year, before any income drawdown. The model splits it between the two of you to pay the least tax that year (an unmarried couple each pay their own gift from their own pension). Only the growth pots are used — never the DC Defensive Pot, cash, the ISAs or the Non-ISA — so the Cash Reserve plays no part. If the growth pots can’t cover it, the gift is reduced, not taken from elsewhere. Nothing is taken from a person’s pension before the minimum pension age (55, or 57 from April 2028; protected pension ages are not modelled) — a gift due earlier is not paid. The gift still counts towards the 7-year rule. The tax paid is shown on the Gifting page, and as its own band on top of the income tax charts.
One-off gift Configurable A single lump sum at a chosen age, paid at the start of that year, so it earns no growth that year
Counts towards the 7-year rule, like the annual gift, using whatever is left of that year’s £3,000 annual exemption (£6,000 for a couple). Cash Reserve first: cash, Premium Bonds and the Cash ISA are only used down to your Cash Reserve; the Non-ISA is used before the Stocks & Shares ISA. Non-ISA first: the Non-ISA, then the Stocks & Shares ISA, then the Cash Reserve. Pension: taken from the growth pots with income tax paid first, as in the row above. If the chosen sources can’t cover it, the gift is reduced.
Gifting Funding Floor Configurable, on by default Before each gift, checks you would still have enough to fund every remaining year’s spending, with no growth at all, plus the safety margin
Counts cash, Premium Bonds, both ISAs, the Non-ISA and the pensions, after State Pension and DB income. Pension money is counted at 85p in the pound: 25% comes out tax-free and the rest is assumed taxed at the 20% basic rate. A gift that would leave less is trimmed for that year, and gifting restarts once the plan is clear again. Gifts that can’t be paid because the money has run out are shown separately — that happens whether the floor is on or off.
Pension pots post-2027 Always included in IHT estateAlways on
Finance Act 2026 — undrawn DC pots form part of the taxable estate from April 2027. Applied as default planning position.
Inherited pension income tax Configurable Full UK band stacking on a phased drawdown — not a flat rate on a lump sum
Each beneficiary's share is drawn evenly over a chosen number of years (1–20, default 5, set via the IHT page slider) and taxed by stacking each year's withdrawal on top of an assumed existing income (£30k/£75k/£150k for the basic/higher/additional-rate scenarios) using 2026/27 bands: Personal Allowance £12,570, basic rate to £50,270, higher rate to £125,140, additional rate above. Longer drawdown periods spread withdrawals across more years and lower bands, reducing the effective tax rate.
Unmarried Couple — first death Unmarried Couple only A real, separate IHT event — no spousal exemption applies
Whichever partner's age first exceeds their own death age, the model taxes THEIR OWN estate share alone: their own DC pot in full, plus their ownership share of the combined cash/ISA/property pools (set via the Property Ownership Split input, also used for cash/ISA). Taxed using their own individual £325k NRB / £175k RNRB — no transfer to the survivor, since they aren't married. Tax is paid from the shared liquid pools (cash, then ISA); the deceased's own DC pot then either passes to the survivor net of tax (as cash — note any inherited ISA share loses its tax-free wrapper, unlike for a married couple) or is excluded entirely, per the "Estate Passes To Survivor?" toggle on Page 1. The simulation then continues with only the survivor's remaining assets and income; at their own eventual death, IHT is calculated again on their own estate, also using individual allowances.
Unmarried Couple — gifting Unmarried Couple only Two independent gift streams, each with its own £3k exemption
Each partner has their own annual gift amount and own start age (on their own age scale), rather than one shared amount. Each partner's contribution automatically stops at their own death, regardless of where the shared stop-age slider is set. Each partner's gifts are tracked against their own 7-year PET history and their own £3k annual exemption (not the £6k combined figure used for married couples), feeding into their own first-death IHT calculation above.
Unmarried Couple — same-year deaths Edge case Falls back to a single combined calculation
If both partners' deaths fall within the same modelled year, the model has no meaningful way to sequence them at this yearly resolution — the first-death mechanism above doesn't fire, and the estate is taxed once as a whole, still using individual (not married-combined) allowances.
Care protection Care Protective IIP on property
Property excluded from means test via IIP structure
🎲 Monte Carlo & Scenario Modelling

Scenario terminal values use the ratio of each scenario's portfolio to the central case, applied to each return/inflation cell in the sensitivity table.

Monte Carlo runs 400 stochastic simulations
Run lazily — only when Combined Analysis page is active
Return distribution Log-normal; volatility scales with the return you set
At the DEFAULT (Balanced) returns: DC Long σ ≈ 16%; DC Short σ ≈ 5.5%; Cash ISA σ ≈ 1.2%; S&S ISA σ ≈ 16%; Cash σ ≈ 1.2%. The anchors these are scaled from: DC Long σ ≈ 13% at 4.5%; S&S ISA σ ≈ 13% at 4.5% (same anchor as DC Long); DC Short σ ≈ 4.5% at 3.5%. Only Cash and Cash ISA are genuinely fixed. DC Long, DC Short and the S&S ISA are scaled as baseVol + (your return − the anchor return) × 2.0, clamped at both ends — so raising a growth rate raises that pot’s volatility with it, and the figures above are the values at the defaults, not a ceiling.
Scenario: Optimistic Shares +2 points a year, every year
A full engine run. DC Growth Pot, Stocks & Shares ISA and Non-ISA return 2 points more than your assumption; cash, Premium Bonds, Cash ISA and the DC Defensive Pot keep their own rates.
Scenario: Central Case Base return assumptions unchanged
Matches current slider values
⚠ “Base projection” vs “median projection” Two different things — worth keeping straight when quoting a figure
The base projection is a single deterministic run using your assumptions exactly as entered, with no market simulation at all. It is what the gifting, inheritance and sensitivity tables report. The median projection is the middle outcome of the 400 simulated paths on the Combined page — half the paths finish above it, half below. They are usually close but they are not the same number, and neither is a forecast. Quote the base projection when you mean “on these assumptions”, and the median when you mean “in the middle of the simulated range”.
Scenario: Cautious Shares −2 points a year, every year
A full engine run, as Optimistic but 2 points less.
Scenario: Crash at Retirement Shares −30% over 2 years from the first year of the income target; recovered over 5 years
A full engine run. Shares climb back to where they would have been over the 5 recovery years, so what is lost is what was SOLD while prices were down (sequence-of-returns risk) — worked out by the engine, not a fixed figure. Cash and the DC Defensive Pot are not hit.
Scenario: Crash Early Retirement Shares −25% over 4 years from year 4 of the income target; recovered over 5 years
A full engine run, as above.
Scenario: Crash Mid-Retirement Shares −25% over 5 years from year 11 of the income target; recovered over 6 years
A full engine run, as above.
Scenario: Extended Bear Shares return 0% for 10 years from the first year of the income target; no catch-up
A full engine run. A lost decade: the shortfall against your assumption is never made back.
⚠️ Key Simplifications & Limitations

This model is a planning tool. It simplifies many real-world complexities. Always validate key assumptions with the client and their adviser.

All values in today's money Yes — nominal values used only for tax band calculations
Timing within the year Annual model, not monthly. Every event — spending, drawdown, contributions, gifts, care costs, the Non-ISA → ISA move — happens at the start of the year, and growth is then applied to whatever is left. The balance shown against an age is therefore the end of the year in which the person is that age. Money spent or given away earns no growth that year; money paid in earns a full year. Real life is monthly, so the true answer sits between the two.
No NIC after pension age Correct — NIC does not apply beyond State Pension age
Care costs Modelled as an additional annual outflow per spouseConfigurable, off by default
Toggle, cost and duration set on Page 1. There is no default cost — the box starts empty and you enter your own figure; the duration defaults to 3 years. Start age defaults to the last N years before death unless overridden. Funded from the same drawdown hierarchy as lifestyle spending, and protected ahead of gifting if the portfolio runs short.
State Pension triple lock Not modelled — CPI escalation assumed instead
Conservative long-run assumption
Future legislation changes Not modelled beyond known frozen thresholds
Tax law changes post-modelling date are excluded
ISA capital ownership Fixed by the opening balance ratio for the whole plan
No dynamic re-allocation between spouses. The Cash ISA and the Stocks & Shares ISA each get their own opening ratio, but neither ratio moves after day 1 — later contributions and withdrawals do not change whose money the pool is treated as.
Cash capital ownership Not fixed — it updates as money enters
Unlike the ISA above, the cash ratio is recomputed from running totals rather than frozen at day 1: DB tax-free lump sums, pension crystallisation cash and annuity-purchase cash are credited in full to whoever they belong to. See “Cash ownership split” under Investments, Cash & Property.
Mortgage on property Single balance, optionally amortised
Leave Mortgage — Years Remaining blank or 0 and the balance sits unchanged for the whole plan (interest-only, or update it yourself as it falls). Enter a number of years and it tapers straight-line to £0 over that period — equal reductions each year, not a real repayment schedule, so the early years fall faster than a real capital-and-interest mortgage would. Either way the remaining balance nets off the property in the IHT and net-worth figures.
Configurable
Single income target Up to 4 phase targets; flat within each phaseConfigurable
No spending curve or variable needs modelling
All ages in whole years No monthly granularity
Death ages and retirement ages are whole numbers
Pension commencement DC income starts at retirement age; DB at specified age
Saved scenarios are local to this browser Stored on this device only — not in the cloud, and not shared across devices or browsers
The Save/Load slots and the Compare page's A/B scenarios all use the browser's own local storage, tied to this specific browser on this specific device. Switching to a different browser (or a different phone/tablet/computer), clearing browsing data, or using a private/incognito window will not show previously saved scenarios. There's no automatic sync between devices. To move a plan, or keep a copy of it, use Inputs → Save a copy / move to another device: it gives a code you paste in on the other device (or keep in Notes or an email as a backup).
Drawdown method Three methods. Traditional Drawdown is the default — ISA/cash drawn before the DC pension, as in standard pre-2027 adviceConfigurable
Which method applies is chosen on the Combined page (and independently for A/B on the Compare page); each method's own tax settings are configured in the "Pension Drawdown & Inheritance Settings" section on Page 1. The two Pension First methods reverse the order — the DC pension is drawn first and ISA/cash preserved instead — and Pension First with ISA Recycling adds a second stage that pays surplus pension, within that method's tax-band limit, into the Stocks & Shares ISA rather than spending it. The limit is a preference, not a cap: your income target and Cash Reserve come first, so pension is drawn above it if needed (see "Drawdown order"). Both suit larger estates with pension wealth surplus to lifetime needs: since unused pensions join the IHT estate from April 2027, spending the pension down while preserving ISA/cash can reduce the combined IHT + income tax hit on beneficiaries — not likely to help estates below the IHT threshold. The Compare page's Gross Estate / Total IHT Paid / Inheritance per Child row shows the actual impact for a given scenario. The full order each method uses is set out under "Drawdown order" in Bucket Strategy & Drawdown Hierarchy above.
Cash ISA / Stocks & Shares ISA split Held as two separate pools throughout — separate balances, separate growth rates, separate places in the drawdown order
They are taxed identically on withdrawal (both fully tax-free) and identically exposed to IHT, but they are not the same asset: one is cash and one is invested. So each compounds at its own slider rate for the whole plan, and they sit in different places in the drawdown order — the Cash ISA is ranked among the savings pots by its own expected return, while the Stocks & Shares ISA is pinned last. The Cash ISA also counts towards the Cash Reserve; the Stocks & Shares ISA sits outside it. The two are never merged into a single pool, and no blended rate is calculated anywhere.
Cash ISA contribution cap (2027 reform) From 6 April 2027, the Cash ISA contribution row is capped at £12k/yr for anyone under 65 that year — the Stocks & Shares ISA row absorbs whatever's left of the unchanged £20k combined allowance
Before 6 April 2027, and at any time for someone aged 65 or over, the only constraint is the combined £20k/person/yr allowance — exactly as today. Each person's age is checked independently in the model year the cap applies, so a couple where one partner is already 65 and the other isn't sees the cap enforced correctly for each. The projection's starting calendar year is used to work out which model year first falls on or after the reform — annual time-steps can't capture the exact mid-year 6 April cutover any more precisely than that.