Pension Lump Sum Tax Calculator
Calculate your 25% tax-free pension commencement lump sum and the income tax due on any taxable portion.
Reviewed by Richard Ross · Last updated April 2026
How Pension Lump Sum Tax Calculator works
Pension commencement lump sum (PCLS)
You can take up to 25% of your pension pot tax-free as a pension commencement lump sum (PCLS) — the "25% tax-free cash". This is taken once when you first access the pension (crystallise). The remaining 75% is taxable when withdrawn.
Taxation of the lump sum
The taxable portion of a pension lump sum is treated as income in the tax year it is received and taxed at your marginal income tax rate. Taking a large lump sum in a single year can push you into a higher tax band. Phased drawdown can reduce the tax cost.
Lump sum vs drawdown
Rather than taking a large lump sum, many retirees use drawdown — taking smaller regular withdrawals, each 25% tax-free and 75% taxable. This spreads the tax and keeps more in the pension growing tax-free for longer. From April 2027, pension pots left unspent are expected to count towards your estate for inheritance tax purposes — which changes the calculus of how much to leave inside the pension.
How pension lump sums affect your IHT estate →Lump sum allowance (from April 2024)
The pension lump sum allowance is £268,275. This is the maximum tax-free lump sum across all your pensions. Amounts above this are taxed as income. The lifetime allowance was abolished from April 2024.
PCLS calculation: the formula and how the LSA depletes across multiple pensions
For each pension you crystallise, the formula is: PCLS = the lower of (25% of fund crystallised) and (remaining lump sum allowance). The LSA is depleted by every PCLS taken — it is not reset between pensions or tax years. Example with three pensions: • Pension A (£300,000): PCLS = min(£75,000, £268,275) = £75,000. Remaining LSA: £193,275. • Pension B (£200,000): PCLS = min(£50,000, £193,275) = £50,000. Remaining LSA: £143,275. • Pension C (£800,000): PCLS = min(£200,000, £143,275) = £143,275 tax-free. The remaining £56,725 of the notional 25% is taxable income. The order in which you crystallise pensions matters only if one scheme has a guaranteed PCLS larger than 25% (common in older defined benefit schemes) — crystallising that first preserves more LSA for your other pensions. If all schemes are defined contribution at 25%, the total tax-free cash is the same regardless of order. Your pension administrator must record and report your LSA usage to HMRC whenever you crystallise a pension.
Normal minimum pension access age
You can normally access your pension from age 55. This rises to 57 in April 2028 under the Finance Act 2022. Some schemes (those with a protected pension age) may allow access from 55 even after 2028. Accessing pension before the minimum age is generally only possible in cases of serious ill-health and results in significant HMRC tax charges for unauthorised payments.
Tax planning around lump sum withdrawals
Timing a pension lump sum carefully can significantly reduce your tax bill. Taking it in a year with low other income — such as the first year of retirement before state pension starts, or a year of low employment income — keeps more of the taxable portion within the basic-rate band (taxed at 20% rather than 40%). Spreading withdrawals across multiple tax years and making use of the £12,570 personal allowance each year is generally more tax-efficient than taking a single large amount.
Emergency tax codes on first pension withdrawals
HMRC typically applies an emergency tax code — either 1257L M1 or OT M1 — to the first payment from a pension because no PAYE record exists for that income stream yet. This results in your pension provider deducting significantly more tax than is actually owed: in some cases the entire lump sum is taxed at 40% or 45% even if your correct rate is 20%. You can reclaim the overpayment immediately by submitting: Form P55 if you took a partial lump sum and still have money in the pot; Form P50Z if you have emptied the pot and are not receiving other income; or Form P53Z if you have emptied the pot and have other taxable income. HMRC processes in-year repayment claims within around 30 working days. Alternatively, the overpayment is automatically reconciled via PAYE after the tax year ends, though waiting until then is rarely preferable.
Small pots and trivial commutation
Two routes allow smaller pension pots to be cashed in entirely without triggering the money purchase annual allowance (MPAA). Under the small pot rule, any personal pension pot worth £10,000 or less can be taken as a one-off payment (25% tax-free, 75% taxable income) — up to three personal pensions qualify. Importantly, this route does not trigger the MPAA, so you can continue contributing up to the full annual allowance afterwards. Trivial commutation applies when the total value of all your pension benefits across all registered schemes is £30,000 or less. In this case, you may be able to take everything as a single lump sum — including defined benefit pension entitlements, which cannot normally be commuted outside this rule. The £30,000 limit is assessed at the time of commutation and covers all pensions including any in-payment. Both routes require the pension provider to permit the payment — schemes are not obliged to offer commutation. Check with your provider before assuming eligibility.
Worked example: tax on a £200,000 pension pot (no other income)
Pot: £200,000. Tax-free cash (25%): £50,000. Taxable lump sum: £150,000. With no other income in the year, taxable income = £150,000 − £12,570 personal allowance = £137,430. Step 1 — Basic rate (20%): £37,700 × 20% = £7,540. Step 2 — Higher rate (40%): £74,870 × 40% = £29,948. Step 3 — Additional rate (45%): remaining £24,860 × 45% = £11,187. Total income tax on lump sum: £48,675. Net lump sum received: £101,325. Combined with the £50,000 tax-free cash: £151,325 total received — an effective rate of 24.3% on the full pot. Taking the same taxable £150,000 over three tax years (£50,000 per year, no other income) would produce a total tax bill of approximately £14,860 — saving roughly £33,815 compared to a single-year withdrawal. This is an estimate; actual liability depends on all income received in each year.
Uncrystallised funds pension lump sum (UFPLS)
Under the UFPLS route, each withdrawal from an uncrystallised pension pot is automatically split: 25% tax-free and 75% taxable income. Unlike PCLS — where you take all tax-free cash upfront when crystallising — UFPLS allows ad hoc withdrawals from the uncrystallised pot, each carrying its own tax-free element rather than exhausting it in one go. UFPLS preserves flexibility and avoids front-loading the tax-free entitlement. The drawback is that PAYE applies to each payment and the first withdrawal is typically subject to emergency tax coding, requiring a P55 reclaim. Not all providers offer UFPLS — check with your scheme before relying on this route. Taking a UFPLS does not trigger the money purchase annual allowance (MPAA), provided the entire withdrawal comes from uncrystallised funds.
Source: HMRC — Pension lump sum allowance and tax-free cash, GOV.UK (gov.uk/tax-on-your-private-pension). HMRC — Taking your pension as a number of lump sums (gov.uk). HMRC — Emergency tax codes and pension payments (gov.uk/claim-tax-refund). MoneyHelper — Tax-free pension cash (moneyhelper.org.uk). HMRC — Trivial commutation (gov.uk/guidance/pension-administrators-trivial-commutation).
Frequently asked questions
How much tax-free pension cash can I take?
You can take up to 25% of your pension pot tax-free (up to the lump sum allowance of £268,275 across all pensions). On a £200,000 pot, that is £50,000 tax-free.
What tax do I pay on pension withdrawals?
The taxable 75% of each withdrawal is treated as income and taxed at your marginal rate. If you have no other income, you have a £12,570 personal allowance before paying any tax.
Should I take the full 25% tax-free cash?
Not necessarily. Taking all tax-free cash at once prevents future pension growth on that money. Many advisers suggest phased drawdown, taking partial amounts over time to preserve the tax-free wrapper for longer. Seek independent financial advice.
Can I take my pension before 55?
The normal minimum pension access age is 55 (rising to 57 in April 2028). Access before this age is generally only possible due to serious ill-health, and is subject to significant tax penalties in most cases.
What is the lump sum allowance?
The lump sum allowance (LSA) replaced the lifetime allowance from April 2024. It caps the total tax-free cash you can take across all pensions at £268,275. If you have previously taken pension lump sums or have enhanced HMRC protection, your available LSA may differ.
Is pension lump sum included in the income tax calculation?
Yes. The taxable portion of any pension withdrawal counts as income in the tax year you receive it. If you also have salary, rental income, or other pension income in the same year, the lump sum is stacked on top for tax purposes — potentially pushing you into a higher tax band. This is why many people time lump sum withdrawals for low-income years.
Can I take more than 25% tax-free from my pension?
No — the tax-free amount is capped at 25% of your pension pot, up to the Lump Sum Allowance of £268,275 (from April 2024). Amounts above the Lump Sum Allowance are taxed as income. Some people with older Enhanced Protection or Fixed Protection may have higher entitlements, but these require specific conditions to have been in place before 2006 or 2012.
Is it better to take the full lump sum at once or in stages?
Taking the full tax-free amount at once is the most common approach, but taking it in stages using drawdown can be more tax-efficient for some people. Under Uncrystallised Funds Pension Lump Sum (UFPLS), each withdrawal is 25% tax-free and 75% taxable. The right choice depends on your other income, tax position, and investment strategy. A financial adviser can model both approaches for your specific circumstances.
Does taking a lump sum affect my annual pension income?
Yes. If you take a tax-free cash lump sum from a defined benefit (final salary) scheme, your regular pension income is usually reduced through a process called commutation — you exchange future pension income for a one-off cash sum. The commutation factor determines the trade-off. Defined contribution (personal pension) lump sums reduce the remaining pot available to generate income through drawdown or annuity.
What happens to unspent pension cash when I die?
If you take the tax-free lump sum and spend or invest it outside a pension, it forms part of your estate and may be subject to inheritance tax. From April 2027, unspent pension pots will also be included in your estate for IHT purposes — a significant change from the current position. Money kept within a pension wrapper is not currently subject to IHT and can be passed to beneficiaries, but this is changing.
Why was too much tax deducted from my pension lump sum?
Pension providers apply an emergency tax code (typically 1257L M1 or OT M1) to first-time withdrawals because HMRC has no PAYE record for that income. This causes significant over-deduction — sometimes 40–45% even for basic-rate taxpayers. You do not have to wait for the end of the tax year to reclaim it. Submit Form P55 (partial withdrawal, pot still open), P50Z (pot emptied, no other income), or P53Z (pot emptied, other income in the year). HMRC processes these claims in around 30 working days.
What is the small pot rule and can I use it?
Under HMRC's small pot rule, any personal pension pot worth £10,000 or less can be cashed in entirely — 25% tax-free and 75% taxable income — and you can do this for up to three personal pension pots. The key benefit is that it does not trigger the money purchase annual allowance (MPAA), so you can still contribute up to £60,000 per year to other pensions. This is only available for personal pensions; occupational (workplace) pension small pots have separate rules. Check with your provider whether your scheme permits it.
What is trivial commutation and who qualifies?
Trivial commutation allows the entire value of all your pension benefits — across all registered schemes — to be taken as a one-off cash sum if the total is £30,000 or less. It can apply to defined benefit (final salary) pensions, which cannot normally be commuted outside this route. The £30,000 limit is assessed at the time of commutation and includes in-payment pensions. Not all providers permit trivial commutation — you need to check with each scheme. This is an estimate; your actual tax position depends on your full income in the year.
Does taking a pension lump sum trigger the money purchase annual allowance?
It depends on how you take it. Taking a pension commencement lump sum (PCLS) — the standard 25% tax-free cash when you first access a pension — does not trigger the MPAA if the remaining 75% goes into drawdown without being withdrawn. However, taking any flexible drawdown withdrawal from the crystallised fund triggers the MPAA, limiting future pension contributions to £10,000 per year. The small pot route is specifically designed to avoid triggering the MPAA and is worth considering if you have small legacy pensions.
How much income tax will I pay on a £100,000 pension lump sum?
With a £100,000 pot and no other income in the same tax year: tax-free cash = £25,000; taxable portion = £75,000; taxable income after personal allowance = £62,430. Income tax = £7,540 (20% on first £37,700) + £9,892 (40% on remaining £24,730) = £17,432 total. Net received = £57,568 after tax, plus the £25,000 tax-free cash — £82,568 in total. This is an estimate; your actual liability depends on your full tax position including all other income received in the year.
Can I take my pension lump sum across two tax years to reduce the tax?
Yes — and it can make a significant difference. Because pension withdrawals are taxed as income in the year received, spreading withdrawals across two or more tax years keeps more within the basic-rate band (20%) rather than the higher-rate band (40%). For a £200,000 pot, taking £150,000 taxable in one year produces approximately £48,675 in income tax. Taking £75,000 taxable in each of two consecutive years produces approximately £25,090 total — a saving of roughly £23,585. This strategy only works for drawdown pots; it is not available for annuities or defined benefit pensions in payment.
What is the Lump Sum and Death Benefit Allowance (LSDBA)?
The LSDBA (£1,073,100) is a separate lifetime limit on tax-free lump sums paid from pensions on death. It is distinct from the Lump Sum Allowance (£268,275), which caps tax-free cash taken in your lifetime. If the total of lump sum death benefits paid from all your pensions exceeds the LSDBA, the excess is taxed as income in the hands of the recipient. From April 2027, unspent pension pots will also become subject to inheritance tax, significantly changing the estate-planning calculus for large pension pots left undrawn.
What is the difference between UFPLS and drawdown?
An Uncrystallised Funds Pension Lump Sum (UFPLS) is a withdrawal from a pension that has not yet been crystallised — each payment is automatically 25% tax-free and 75% taxable. Drawdown involves first crystallising the pension (taking the PCLS tax-free cash upfront as a lump sum), then drawing income from the remaining 75%, which is fully taxable. UFPLS suits ad hoc, flexible withdrawals and avoids front-loading the tax-free entitlement; drawdown gives more control once the pension is in payment. Both routes are only available for defined contribution (personal pension or SIPP) pots — not defined benefit (final salary) schemes.
How exactly is the pension commencement lump sum calculated?
The formula is: PCLS = the lower of (25% of the fund you are crystallising) and (your remaining lump sum allowance). Example: if your pot is £180,000 and your full £268,275 LSA is unused, your PCLS = min(£45,000, £268,275) = £45,000. If you had already taken £240,000 tax-free from a previous pension, your remaining LSA is £28,275, so PCLS = min(£45,000, £28,275) = £28,275 — and the remaining £16,725 of the notional 25% is taxed as income. Your pension scheme is required to track and report how much LSA you have used. This is an estimate; your actual entitlement may differ if you hold HMRC transitional protection from before April 2024.
How does the £268,275 lump sum allowance work across multiple pensions?
The lump sum allowance (LSA) is a single lifetime cap shared across all registered pensions — not a per-scheme or per-year limit. Each PCLS you take reduces it permanently. Example: take £100,000 tax-free from Pension A → remaining LSA £168,275. Take £80,000 from Pension B → remaining £88,275. On Pension C you can only take £88,275 tax-free; any amount above that is taxed as income. Your pension administrator reports each crystallisation to HMRC. If you crystallised pensions before April 2024 under the old lifetime allowance regime, HMRC provides transitional rules to convert your prior usage into an equivalent LSA deduction.
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This calculator provides estimates for informational purposes only. It is not a substitute for personalised pension or financial advice. Speak to a regulated financial adviser before making pension decisions.