Crystallised vs Uncrystallised Pensions

Understanding the difference is important when considering your retirement options. This guide explains how crystallised and uncrystallised pensions work, their tax implications and what happens when you start taking benefits.

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Crystallised vs Uncrystallised Pensions: What’s the Difference?

When planning how to access your pension, you may come across the terms ‘crystallised’ and ‘uncrystallised’. These describe whether your pension savings have been used to provide retirement benefits.

What Does Crystallised Pension Mean?

A crystallised pension refers to pension savings that have been used to provide retirement benefits. This usually happens when you move money into pension drawdown or use it to purchase an annuity.

Crystallisation does not necessarily mean withdrawing all your pension savings or taking them out of the pension system. For example, you may choose to take some tax-free cash and move the remaining funds into flexi-access drawdown. The money in drawdown can stay invested, and you can decide when to take taxable withdrawals, subject to the provider's rules.

Crystallised pension funds may therefore continue to form part of your retirement savings, although their treatment depends on how you have chosen to access them.

Crystallising a pension does not automatically mean:

  • You must stop working or retire
  • All your pension savings must be accessed
  • You must immediately take taxable income
  • Your remaining investments must be sold
  • Your entire pension must be moved to another provider

The options available will depend on your pension arrangement and the retirement benefits you choose.

What Is an Uncrystallised Pension?

If you are building up a defined contribution pension and have not started accessing it, your pension savings will usually be uncrystallised.

Your money usually remains invested, with its value depending on contributions, investment performance and charges. You may also be able to continue contributing and benefit from pension tax relief, subject to the relevant rules and allowances.

An uncrystallised pension does not have to be accessed when you reach retirement age. You can leave the money invested until you decide to take benefits, subject to your pension provider's terms.

The normal minimum pension age is currently 55 and is due to increase to 57 from 6 April 2028. Earlier access may be possible in limited circumstances, including where you have a protected pension age or meet the relevant ill-health conditions.

You may also hold crystallised and uncrystallised pension funds within the same overall pension arrangement. This can happen when you access part of your pension while leaving the remainder untouched.

Crystallised Pension vs Uncrystallised Pension: Key Differences

The main difference between crystallised and uncrystallised pension savings is whether the funds have been used to provide retirement benefits.

Crystallised and Uncrystallised Pensions Compared:

Crystallised pension Uncrystallised pension
Funds have been used to provide pension benefits Funds have not yet been used to provide pension benefits
May remain invested through pension drawdown Usually remain invested before benefits are taken
Taxable drawdown income can be withdrawn Tax-free cash may be available when benefits are accessed
Tax-free cash entitlement linked to those funds has generally been dealt with Tax-free cash entitlement may remain available, subject to allowances
Further contributions may be possible under pension rules Contributions may continue, subject to pension rules
Value may rise or fall if funds remain invested Value may rise or fall while invested
Crystallised pension Funds have been used to provide pension benefits May remain invested through pension drawdown Taxable drawdown income can be withdrawn Tax-free cash entitlement linked to those funds has generally been dealt with Further contributions may be possible under pension rules Value may rise or fall if funds remain invested
Uncrystallised pension Funds have not yet been used to provide pension benefits Usually remain invested before benefits are taken Tax-free cash may be available when benefits are accessed Tax-free cash entitlement may remain available, subject to allowances Contributions may continue, subject to pension rules Value may rise or fall while invested

The distinction is particularly important when considering tax-free cash and retirement income.

Crystallised funds held in drawdown may still be invested, but taking further withdrawals from those funds will generally result in taxable pension income.

With uncrystallised funds, you may still have the option to take tax-free cash when you first access those savings, subject to your available allowances and individual circumstances.

How Pension Benefits Become Crystallised

Pension crystallisation takes place when you use some or all of your defined contribution pension savings to provide retirement benefits.

This could involve moving funds into flexi-access drawdown or purchasing an annuity. You may also take an associated tax-free lump sum, where eligible.

Importantly, you do not have to crystallise your entire pension at once.

For example:

Consider someone with an uncrystallised pension worth £200,000. They decide to access £80,000 of their pension, while leaving the remaining £120,000 uncrystallised.

Assuming they are eligible for the usual tax-free cash entitlement, they could take £20,000 as tax-free cash and move £60,000 into flexi-access drawdown.

Illustrative pension breakdown Amount
Original pension value £200,000
Tax-free cash withdrawn £20,000
Funds moved into drawdown £60,000
Remaining uncrystallised funds £120,000
Illustrative pension breakdown Original pension value Tax-free cash withdrawn Funds moved into drawdown Remaining uncrystallised funds
Amount £200,000 £20,000 £60,000 £120,000

The £60,000 in drawdown remains within the pension arrangement and may continue to be invested. Its value can rise or fall, and withdrawals will reduce the amount remaining.

The £120,000 of uncrystallised funds can remain invested until the individual decides to access further benefits.

This example is illustrative only and assumes sufficient available tax-free cash allowances. It does not account for investment changes, charges or individual tax circumstances.

Tax-Free Cash, Taxable Income and Allowances

You can usually take up to 25% of eligible defined contribution pension benefits as tax-free cash, subject to your available allowances and individual circumstances.

For most people, the standard Lump Sum Allowance is currently £268,275. This generally limits the amount of tax-free lump sums that can be taken across their pensions, although different limits may apply where relevant protections are held.

The Lump Sum and Death Benefit Allowance can also affect certain tax-free pension lump sums and death benefits.

The tax treatment will depend on how you access your pension:

  • Tax-free cash: Eligible pension commencement lump sums can normally be taken without Income Tax, within the applicable allowances.

  • Drawdown income: Withdrawals from crystallised funds held in flexi-access drawdown are generally taxable as income.

  • Annuity income: Payments from a pension annuity are normally subject to Income Tax.

  • UFPLS payments: Usually, 25% of each qualifying lump sum is tax-free, and 75% is taxable, subject to available allowances and other conditions.

 Taking a large taxable withdrawal could push you into a higher tax band. Accessing taxable pension income flexibly can also trigger the Money Purchase Annual Allowance (MPAA), restricting future tax-relieved contributions to defined contribution pensions. Taking tax-free cash alone will not normally trigger the MPAA.

Options for Accessing Part of Your Pension

You don't have to access all your pension savings at once. Depending on your provider, you may be able to take benefits gradually while leaving some funds uncrystallised. Options include flexi-access drawdown, purchasing an annuity or taking an UFPLS payment, each with different tax implications and investment considerations.

Flexi-Access Drawdown

Flexi-access drawdown allows you to move some or all of your pension savings into drawdown while keeping the money invested.

You can usually take up to 25% of the funds being crystallised as tax-free cash, subject to your available allowances. The remainder stays invested, and you can choose when to take taxable withdrawals.

You don't have to take taxable income immediately, although investment values can rise or fall and withdrawals will reduce the amount remaining.

Buying an Annuity

An annuity enables you to use pension savings to purchase a contractual retirement income, usually payable for life.

You can use part of your pension to buy an annuity while leaving other funds uncrystallised. Eligible tax-free cash may also be available, subject to your allowances.

The income offered depends on factors including your age, annuity rates and the options selected. Annuity purchases can be difficult to reverse once the cancellation period ends, so comparing options is important.

Taking an UFPLS Payment

An Uncrystallised Funds Pension Lump Sum (UFPLS) allows you to withdraw money directly from uncrystallised pension savings without moving it into drawdown.

Normally, 25% of each qualifying payment is tax-free, and 75% is taxable, subject to the relevant allowances and conditions.

For example, a £20,000 UFPLS payment would typically provide £5,000 tax-free and £15,000 taxable income, assuming the usual entitlement is available.

Any remaining funds can stay uncrystallised. Taking a qualifying taxable UFPLS payment will normally trigger the Money Purchase Annual Allowance (MPAA).

Investment Risk and Charges

Investment performance and charges can affect both crystallised and uncrystallised pension savings. Funds remaining in drawdown can fall in value, particularly when withdrawals are made during periods of poor investment performance.

Before accessing your pension, consider:

  • Investment options before and after crystallisation

  • Ongoing management and administration charges

  • Drawdown or transfer charges

  • The impact of withdrawals on future income

  • Any guarantees or protected benefits you could lose

Some providers offer different investments or charging structures once funds enter drawdown, so it is worth comparing the available options.

When to Seek Regulated Advice

Deciding when and how to crystallise pension savings can affect your retirement income, tax position and future flexibility. You may want to consider regulated financial advice if you:
  • Are unsure when to access your pension savings
  • Want to take tax-free cash gradually
  • Are considering drawdown, annuities or UFPLS payments
  • Have several pensions with different benefits
  • Want to understand the tax implications of withdrawals
  • Are concerned about investment risk or future income
  • Are considering transferring crystallised pension funds
  • Want to coordinate pension withdrawals with other income

My Pension Expert's experienced advisers can help you understand your existing pension arrangements and the retirement options available.

They can review your circumstances, explain the potential implications of different approaches and, where appropriate, recommend a retirement strategy suited to your needs and objectives

Frequently Asked Questions

Yes. Funds moved into flexi-access drawdown can remain invested, although their value may rise or fall. You can generally choose when to take taxable withdrawals, subject to your provider's rules, but withdrawals will reduce the amount remaining.

It may be possible to transfer crystallised funds held in drawdown to another provider that accepts them, subject to pension rules. Before transferring, compare charges and investment options, and check whether you could lose any valuable benefits.

Uncrystallised funds generally benefit from the tax treatment of registered pensions while invested. When accessed, some money may be available tax-free, subject to allowances, while further withdrawals are usually taxable as income.

Only the portion you choose is used to provide retirement benefits. The remaining funds can stay uncrystallised and invested until you decide to access them, subject to your provider's rules and individual circumstances.

Yes, depending on your pension arrangement. You may be able to crystallise part of your pension, take the associated tax-free cash and use the remainder for drawdown or an annuity, leaving other funds uncrystallised.

Both may be available to beneficiaries, depending on the pension arrangement. Tax treatment depends on factors including age at death, how benefits are paid and applicable allowances. Inheritance Tax rules are also changing from 6 April 2027.

Not necessarily. Funds moved into drawdown may remain invested in similar assets, although providers may offer different investment options or arrangements once benefits are accessed. It's worth reviewing your investments before crystallising.

Yes, subject to contribution rules and tax allowances. However, taking taxable income flexibly can trigger the MPAA, restricting future tax-relieved defined contribution pension contributions. Taking tax-free cash alone will not normally trigger it.

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This article is for general information only and does not constitute financial advice. Pension and tax rules depend on individual circumstances and may change in the future.