UK retirement planner

UK post-tax income model — optimised drawdown with year-by-year tax calculation. Enter your details to get started.

Profile:
Personal details

All monetary inputs are in today's money. Inflation applied automatically in projections.

Phased spending in retirement (£/yr, today's money)

Set your target spending for each 5-year period of retirement. Inflation is applied automatically each year within that period. Leave a period blank to carry the previous amount forward.

Higher spending in early retirement stepping down gradually is a common and realistic pattern — the "smile" theory of retirement spending.

State pension
3.5%

State pension is taxable income but paid gross. The triple lock guarantees rises by the highest of CPI, earnings growth, or 2.5%. Historical average: ~3.5–4%/yr nominal. Default 3.5% is conservative. Age: 66, rising to 67 by 2028.

Return assumptions
7.5%
5.0%
2.5%

Based on Vanguard/BlackRock long-run capital market assumptions. Balanced = 60/40 portfolio.

DC pension pots
NameCurrent value (£)

25% tax-free lump sum taken at retirement — set % in Strategy tab. HMRC cap: £268,275.

Defined benefit / final salary pensions
NameAnnual income (£/yr, today's money)
2.5%
2.5%

Most DB schemes increase pensions in payment at CPI, capped at either 2.5% or 5%/yr — check your scheme booklet. The escalation rate is min(DB escalation rate, cap) applied each year. If your scheme uses RPI, set the rate to ~0.5–1% above your CPI assumption.

ISAs & savings
NameCurrent value (£)

Tax-free withdrawals — excluded from taxable income calculations entirely.

Investments (GIA, shares, funds)
NameCurrent value (£)

General investment account. Drained by bed-and-ISA transfers each year (set below).

Property

Primary home equity not included in investable pot — only used in the downsizing scenario. BTL equity is included in the pot.

Mortgage paydown

The model calculates remaining balance at remortgage date, then computes new monthly payments at the new rate and term. Home equity = property value minus outstanding balance at each point in time.

Pre-retirement contributions

Contributions are only applied for the number of years specified, then stop. For example, £42,667/yr pension for 3 years = £128,000 total.

Bed-and-ISA conversion

Bed-and-ISA: Sell GIA investments and reinvest into ISA each year. Added to ISA, deducted from GIA — total portfolio unchanged, gains shelter into the tax-free wrapper. Max ISA allowance: £20,000/yr = £1,667/month.

Tax-free cash (pension commencement lump sum)
25%

Capped at HMRC £268,275 limit (2024/25). Completely tax-free — excluded from taxable income. Drawn down first before any taxable pension withdrawal.

Optimised drawdown sequence
① Tax-free cash reserve — zero tax
Drawn first until exhausted. DB pension income offsets spending throughout all phases.
② ISA drawdown — zero tax
Tax-free withdrawals. Does not count as income — preserves personal allowance headroom for pension drawdown.
③ Pension drawdown — taxable above PA
Binary-search solver computes exact gross withdrawal needed so you receive the correct net amount after tax.
④ State pension at age 67 — taxable
Reduces required drawdown significantly, extending the pot and lowering your effective tax rate.
UK income tax (2024/25 bands, inflation-linked annually)
Personal allowance£0 – £12,570 @ 0%
Basic rate£12,571 – £50,270 @ 20%
Higher rate£50,271 – £125,140 @ 40%
Personal allowance taperIncome £100k+: PA reduces £1 per £2 over
Additional rate£125,141+ @ 45%

ISA withdrawals and tax-free lump sum are entirely excluded from taxable income. DB pension, state pension, and pension drawdown are all taxable. Bands are uprated by your inflation assumption each year.

Downsizing scenario
Enable downsizing scenario

Equity released = home grown to downsizing age minus new property (also grown) minus costs. Injected into ISA balance at that age (tax-free).

Switch to Results after reviewing your details to see your full projection.

Switch to Year-by-year to see the full tax breakdown table.