Key Pension Limits 2025/26
Lump Sum Allowance (LSA)
£268,275
Tax-Free Cash Per Crystallisation
25%
Normal Min Pension Age
55 (57 from 2028)
Annual Allowance
£60,000
MPAA (once triggered)
£10,000
Quick Summary
| Uncrystallised funds: Pension money you have not yet accessed. Grows free of income tax and capital gains tax. Up to 25% of the amount you crystallise can normally be taken as tax-free cash (PCLS), subject to your remaining Lump Sum Allowance. |
| Crystallised funds: Pension money already moved into flexi-access drawdown or used to buy an annuity. The PCLS has been taken. All further withdrawals are treated as taxable income by HMRC, taxed at your marginal rate depending on your personal allowance and other income. |
| The crystallisation event: When you access a pension pot, up to 25% can normally be taken as tax-free PCLS, subject to your remaining Lump Sum Allowance (LSA) and the remaining 75% moves to a flexi-access drawdown pot. |
| Why it matters: Drawing from an uncrystallised pot normally gives you up to 25% tax-free each time, subject to your remaining Lump Sum Allowance. Drawing from a crystallised drawdown pot is fully taxable. This distinction is central to tax-efficient retirement planning. |
| Partial crystallisation: Crystallising in stages rather than all at once lets you spread taxable income across tax years, fund early retirement with tax-free cash, and keep more money growing inside the pension wrapper. |
| MPAA trigger: Taking PCLS only does NOT trigger the MPAA. Drawing taxable income from a crystallised drawdown pot does. So does taking a UFPLS from an uncrystallised pot. |
| Emergency tax warning: Your first drawdown payment is often taxed on an emergency Month 1 basis. Reclaim any overpaid tax using HMRC form P55. |
Crystallised and uncrystallised. These two terms appear constantly in pension paperwork, on provider platforms, and in financial guidance, yet they are rarely explained clearly. If you are approaching retirement or already drawing from a pension, understanding the difference is not optional: it directly affects how much tax you pay, when you pay it, and whether you can continue building up your pension if you are still working.
In plain English, an uncrystallised pension is one you have not yet accessed. A crystallised pension is one you have already started taking money from, typically by moving funds into flexi-access drawdown. The critical difference between the two is what happens when you take money out: from an uncrystallised pot, up to 25% can normally be taken tax-free, subject to your remaining Lump Sum Allowance. HMRC treats withdrawals from a crystallised drawdown pot as taxable income and taxes them at your marginal rate. Depending on your available personal allowance and other income sources, some or all of the withdrawal may be taxable.
This guide explains both terms from first principles, walks through what actually happens at the moment you crystallise a pension, and shows how choosing to crystallise in stages rather than all at once can make a significant difference to the tax you pay across retirement.
The difference between crystallised and uncrystallised pension funds is not just technical jargon. It is the foundation of almost every tax-efficient retirement income strategy. Consequently, getting this right can save you thousands of pounds over the course of retirement, while getting it wrong can trigger unexpected tax bills or permanently limit your pension contributions. The sections below explain each term clearly and show you exactly what happens when you crystallise.
What does uncrystallised mean?
Specifically, an uncrystallised pension fund is a pension pot that you have not yet accessed. The money sits inside the pension wrapper, invested and growing. HMRC does not tax investment growth inside the wrapper: there is no income tax on dividends, no capital gains tax on investment returns, and no annual tax on interest. The money grows entirely free of UK tax.
Importantly, an uncrystallised fund still has its full tax-free cash entitlement (the Pension Commencement Lump Sum, or PCLS) available. When you eventually access the fund, you can take up to 25% of the amount you crystallise free of income tax, subject to the lifetime cap of £268,275 across all your pensions. The Lump Sum Allowance replaced the Lifetime Allowance framework for tax-free cash purposes from 6 April 2024.
Furthermore, until you access your pension, the funds remain uncrystallised, and you retain all the flexibility that comes with that status. You can choose when to crystallise, how much to crystallise, and in what order if you have multiple pension pots.
What you can do with an uncrystallised pension fund
You have four main options: (1) Crystallise it by moving funds to flexi-access drawdown, taking 25% as tax-free PCLS and parking the rest to draw over time. (2) Take a UFPLS (Uncrystallised Funds Pension Lump Sum), where each payment is 25% tax-free and 75% immediately taxable, but note this triggers the MPAA. (3) Use the funds to buy a lifetime annuity. (4) Leave the funds untouched and continue growing inside the pension wrapper. You do not have to access your pension just because you have reached the minimum pension age.
What does crystallised mean?
By contrast, a crystallised pension fund is one that you have already accessed. Once you trigger a crystallisation event, the funds move out of the uncrystallised pot and into a flexi-access drawdown arrangement (or are used to purchase an annuity). At that point, the PCLS on those funds has been taken, and the 25% tax-free entitlement on the crystallised amount is gone.
This does not mean your money stops growing. Funds inside a crystallised drawdown pot continue to be invested and grow free of income tax and capital gains tax within the pension wrapper, in exactly the same way as uncrystallised funds. However, the important difference is what happens when you withdraw money.
Every pound withdrawn from a crystallised drawdown pot is treated by HMRC as non-savings income and taxed at your marginal rate, just like a salary or rental income.
Importantly, once crystallised, funds cannot be returned to uncrystallised status. The decision is permanent for those funds. You cannot re-take PCLS on an amount that has already been crystallised.
The rule to remember: uncrystallised versus crystallised withdrawals
Draw from an uncrystallised pot: up to 25% can normally be taken tax-free, subject to your remaining Lump Sum Allowance, 75% is taxable. Draw from a crystallised drawdown pot: withdrawals are treated as taxable income by HMRC, taxed at your marginal rate depending on your available personal allowance. This single distinction is the foundation of almost all tax-efficient drawdown planning.
The crystallisation event: what actually happens
A crystallisation event is the moment you formally access your pension by designating funds to drawdown or using them to buy an annuity. At that point, two things happen simultaneously. First, your Lump Sum Allowance (LSA) is checked: you can take up to 25% of the amount being crystallised as tax-free PCLS, provided you have sufficient LSA remaining. The LSA is a lifetime limit of £268,275 across all your pensions. Second, the remaining 75% (or the full amount if you choose not to take PCLS) moves into a flexi-access drawdown pot.
HMRC tracks the LSA cumulatively across every crystallisation event in your lifetime. Each time you crystallise, the PCLS you take is deducted from your remaining allowance. Once the full £268,275 has been used, any further PCLS above that amount is taxable as income, rather than being tax-free.
How the Lump Sum Allowance is tracked across multiple crystallisations
Example: You crystallise £200,000 from Pension A and take £50,000 as PCLS. Your remaining LSA is now £218,275. Two years later you crystallise £300,000 from Pension B and take £75,000 as PCLS. Remaining LSA: £143,275. You can continue crystallising and taking PCLS until your total tax-free cash reaches £268,275. Any PCLS above that is taxable. Ask your pension provider for your crystallisation record if you have accessed pensions before.
How UFPLS payments interact with the crystallisation process
It is also worth noting that a UFPLS (Uncrystallised Funds Pension Lump Sum) counts as a crystallisation event. Each UFPLS payment crystallises the amount taken: up to 25% can normally be taken tax-free, subject to your remaining LSA, and 75% is taxable income. Every UFPLS payment uses a portion of your LSA.
Protected tax-free cash: check before crystallising anything
Some people registered for Lifetime Allowance protections before the LTA was abolished in April 2024. These include Enhanced Protection, Fixed Protection, and scheme-specific protected cash rights. If you have any form of LTA protection, you may be entitled to more than 25% PCLS or more than £268,275 in total tax-free cash. Crystallising funds without checking your protection status first can permanently reduce or lose your entitlement. Always confirm your position with your pension provider or a qualified adviser before acting.
Partial crystallisation: taking your pension in stages
You do not have to crystallise your entire pension in a single event. Many people choose to crystallise in stages, accessing only the funds they need each year while leaving the rest uncrystallised and growing inside the pension wrapper. This approach is sometimes called phased retirement or phased drawdown.
Each partial crystallisation is a separate event. When you crystallise a tranche of funds, up to 25% of that tranche can normally be taken as tax-free PCLS, subject to your remaining LSA and 75% moves to your drawdown pot. Your remaining uncrystallised funds continue to grow tax-free, and you retain the right to take 25% of each future crystallisation as tax-free cash until your total PCLS reaches £268,275.
The key tax advantage of partial crystallisation is control. Rather than generating a large drawdown pot from day one and drawing heavily taxable income from it each year, you can crystallise only what you need and fund your retirement partly or entirely from the tax-free PCLS element in the early years. This can defer taxable income to later years when you may want to manage your total income more carefully.
Benefits of crystallising in stages rather than all at once
Partial crystallisation lets you: keep more of your pension growing tax-free inside the wrapper for longer; fund early retirement years from tax-free PCLS rather than taxable drawdown income; manage your taxable income year by year to stay within specific tax bands; and avoid generating a large drawdown pot that draws income you do not yet need. It also preserves maximum flexibility, since you control the timing and size of each crystallisation.
Why the state pension changes your planning
One factor that many people overlook when planning drawdown income is the State Pension. For the 2026/27 tax year, the full new State Pension is approximately £12,548 per year (£241.30 per week). This is taxable income, and it counts against your personal allowance of £12,570. Although the State Pension is taxable, tax is usually collected through other income sources rather than deducted directly from the pension payment itself, leaving only around £22 of your personal allowance available before additional income becomes taxable.
For anyone drawing crystallised drawdown income on top of a full State Pension, this means that almost every pound of drawdown income will typically fall into the 20% basic-rate tax band from the very first pound. This is a major difference compared with someone drawing pension income before their State Pension begins, where the full personal allowance may still be available to absorb drawdown income tax-free.
State Pension: only around £22 of personal allowance left
At approximately £12,548 per year (2026/27 full new State Pension), your personal allowance of £12,570 is almost entirely consumed. Only around £22 remains before the 20% basic-rate band applies to additional income. Although the State Pension is taxable, tax is usually collected through other income sources rather than deducted directly from the State Pension itself. If you are planning to take drawdown income alongside a full State Pension, the practical effect is that almost all of your drawdown income will typically be taxable. This makes it especially important to crystallise and draw income in the years before your State Pension starts, when your personal allowance is still fully available.
Managing income from a crystallised drawdown pot
Once you have a crystallised drawdown pot, every pound you withdraw is subject to income tax. HMRC treats drawdown income as non-savings income, alongside employment, rental, and pension income. The same tax bands apply: personal allowance of £12,570 (no tax), basic rate of 20% from £12,570 to £50,270, higher rate of 40% from £50,270 to £125,140, and additional rate of 45% above £125,140.
The practical goal for most people in drawdown is to stay within the basic rate band. Where possible, drawdown income should be planned so that total income from all sources (including state pension, employment, rental, and other pension income) stays below £50,270 in any given year. Drawing more than you need, particularly in years when other income is already significant, pushes money unnecessarily into the 40% band.
Emergency tax on your first drawdown payment
HMRC frequently applies an emergency Month 1 tax code to the first payment from a new drawdown arrangement. This means only one twelfth of your personal allowance is applied to the payment, resulting in a much higher tax deduction than you would expect. If you are overcharged, you do not have to wait until the end of the tax year to reclaim. Submit HMRC form P55 (for a partial drawdown) or P50Z (if you have stopped work and taken all your drawdown in one payment). Most people receive their refund within 4 to 6 weeks.
The £100,000 income trap
Anyone whose total income from all sources approaches or exceeds £100,000 faces a particularly steep effective tax rate. The personal allowance is tapered away at a rate of £1 for every £2 of income above £100,000. This means that between £100,000 and £125,140, the effective marginal rate is 60%, because each additional £2 of income loses £1 of personal allowance, effectively creating a 60% marginal tax rate within that income band.
The £100,000 to £125,140 effective 60% tax band
If your drawdown income, state pension, salary, and other income combine to put you above £100,000 in any tax year, you are effectively paying 60% tax on each pound between £100,000 and £125,140. Above £125,140, your personal allowance is completely gone. Planning to stay below £100,000 total income is particularly valuable: it preserves the full personal allowance and avoids this hidden higher rate. Deferring drawdown income or making additional pension contributions (if the MPAA has not been triggered) can both help manage this.
How crystallisation interacts with the MPAA
Crystallising a pension pot and taking tax-free cash does not automatically trigger the Money Purchase Annual Allowance. To be clear: taking only your tax-free cash (PCLS) without drawing any taxable income from the drawdown pot does not trigger the MPAA. What triggers the MPAA is drawing taxable income from a crystallised drawdown pot or taking a UFPLS. The distinction is important for anyone still contributing to a pension.
If you crystallise a pension, take the PCLS, and move the remaining 75% into a drawdown pot without drawing any income from it, your annual allowance remains at £60,000. You can continue contributing to other pension pots at the full rate without restriction. The MPAA is only triggered by the act of drawing taxable income, not by crystallising or setting up the drawdown arrangement.
How to keep your full £60,000 allowance while crystallising
If you crystallise a pension, take the PCLS, and move the remaining 75% into a drawdown pot without drawing any income from it, your annual allowance remains at £60,000. You can continue contributing to other pension pots at the full rate without restriction. The MPAA is only triggered by the act of drawing taxable income, not by crystallising or setting up the drawdown arrangement.
| Action | Triggers MPAA? |
|---|---|
| Crystallising a pension pot and taking PCLS only, with no taxable income drawn from drawdown | No |
| Drawing taxable income from a flexi-access drawdown pot (crystallised funds) | Yes |
| Taking a UFPLS from an uncrystallised pension pot (even a small one) | Yes |
| Taking income from a defined benefit (final salary) pension | No |
| Cashing in a small pension pot under £10,000 using the small pots rule | No
|
For the full details on every MPAA trigger scenario, see our dedicated MPAA guide.
Worked example: full crystallisation versus taking it in stages
David is 62 and has recently retired. He has a SIPP worth £400,000 and no other income. His annual living costs are £20,000. He wants to understand how much income tax he would pay over five years under two different approaches.
Option A: Crystallise the full £400,000 in 2025/26
David crystallises his entire SIPP in the 2025/26 tax year. He takes £100,000 as a tax-free PCLS lump sum (25% of £400,000) and moves £300,000 into a flexi-access drawdown pot. He draws £20,000 per year from the drawdown pot to fund his living costs.
Each year, his £20,000 drawdown income is taxable. After his personal allowance of £12,570, he pays 20% tax on £7,430, giving a tax bill of £1,486 per year.
| Tax year | Crystallised | PCLS received | Drawdown drawn | Tax paid |
|---|---|---|---|---|
| 2025/26 | £400,000 | £100,000 | £20,000 | £1,486 |
| 2026/27 | £0 | £0 | £20,000 | £1,486 |
| 2027/28 | £0 | £0 | £20,000 | £1,486 |
| 2028/29 | £0 | £0 | £20,000 | £1,486 |
| 2029/30 | £0 | £0 | £20,000 | £1,486 |
| 5-year total | £400,000 | £100,000 | £100,000 | £7,430 |
Option B: Crystallise £80,000 per year for five years
David takes a different approach. Each year, he crystallises £80,000 from his SIPP. Of that, £20,000 is paid to him as tax-free PCLS (25% of £80,000) and £60,000 moves to a drawdown pot. He lives on the £20,000 PCLS each year and draws nothing from the drawdown pot during this period.
Because his only income each year is the tax-free PCLS (which does not count as taxable income), his taxable income is nil. He pays no income tax in any of the five years.
| Tax year | Crystallised | PCLS received | Drawdown drawn | Tax paid |
|---|---|---|---|---|
| 2025/26 | £80,000 | £20,000 | £0 | £0 |
| 2026/27 | £80,000 | £20,000 | £0 | £0 |
| 2027/28 | £80,000 | £20,000 | £0 | £0 |
| 2028/29 | £80,000 | £20,000 | £0 | £0 |
| 2029/30 | £80,000 | £20,000 | £0 | £0 |
| 5-year total | £400,000 | £100,000 | £0 | £0 |
Comparing the two strategies: what the numbers show
After five years, both options result in David having received £100,000 in total PCLS and having £300,000 or more in a drawdown pot. In real life, investment performance, sequencing risk, inflation, and future tax changes can materially affect outcomes.
The example is simplified for illustration purposes only. The critical difference is that Option B saved £7,430 in income tax over the five years, while also keeping a larger amount growing inside the pension wrapper for longer.
Key takeaway from David’s example
Partial crystallisation does not give you more tax-free cash: you still receive 25% of whatever you crystallise, subject to the £268,275 LSA. What it changes is when taxable income hits your tax return. In the early years of retirement, before state pension kicks in, your personal allowance is fully available. Crystallising only enough to generate the cash you need from PCLS, rather than drawing large amounts from a taxable drawdown pot, is one of the most straightforward ways to reduce your income tax bill in retirement.
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"Two pension pots, same value, five years of retirement. One strategy paid £7,430 in tax. The other paid nothing. The difference was simply when and how the pension was crystallised."
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Crystallised and uncrystallised funds: frequently asked questions
Q: Can I have both crystallised and uncrystallised funds at the same time?
Yes, and in fact this is very common in practice. You might have one SIPP that you have partially crystallised, another workplace pension that is still entirely uncrystallised, and a drawdown pot that is already in payment. Each pot is treated separately. You can crystallise one pension while leaving another completely untouched.
Q: Does investment growth in a crystallised drawdown pot use my annual allowance?
No. Growth inside the pension wrapper (whether uncrystallised or in drawdown) does not count as a contribution and does not use any of your annual allowance. Only actual contributions by you or your employer count against the allowance. The MPAA only affects future contributions to money purchase pensions, not the growth of existing funds.
Q: Can I move money from a crystallised drawdown pot back to being uncrystallised?
No. Unfortunately, Once funds are crystallised, they cannot be returned to uncrystallised status. The PCLS entitlement on those funds is permanently gone. There is no mechanism to re-designate crystallised drawdown funds as uncrystallised.
Q: What happens to my crystallised drawdown fund when I die?
Crystallised drawdown funds can be passed to nominated beneficiaries. If you die before age 75, payments to beneficiaries from a crystallised drawdown pot are typically tax-free. After age 75, they are taxed as income at the recipient's marginal rate. From 6 April 2027, under proposed legislation, both crystallised and uncrystallised pension wealth are expected to be included in your estate for inheritance tax purposes under proposed rules from April 2027. This is a complex area and professional advice is strongly recommended for anyone with significant pension wealth.
Q: What if my pension provider applies emergency tax to my first drawdown payment?
The standard annual This is very common. Emergency tax treatment is especially common where this is the first flexible withdrawal from the pension provider. HMRC instructs providers to use a Month 1 emergency code if they do not hold a current tax code for you, which results in an unusually high tax deduction. Do not assume this will be corrected automatically. Submit form P55 to HMRC (available on gov.uk) as soon as the payment has been processed. Most refunds are issued within four to six weeks. You can also call HMRC to request an updated tax code, which should prevent the same issue on future payments.
Also in this series
Important: This article is for informational purposes only and does not constitute financial advice. Pension rules are complex and personal circumstances vary. The information reflects the rules as of the 2025/26 tax year. The proposed changes to inheritance tax on pensions from 6 April 2027 are subject to final legislation and may be amended. The interaction between crystallisation, the MPAA, Lifetime Allowance protections, income tax planning, and estate planning is highly complex. The worked example is simplified for illustration and does not account for investment growth, adviser fees, or individual tax circumstances. Always speak to a qualified independent financial adviser before making decisions about how or when to access your pension.
Kias Consulting Pro · kiasconsultingpro.com
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