What Is Pension Drawdown and How Does It Work?

What Is Pension Drawdown and How Does It Work?

Pension drawdown lets you take money from your pension while keeping the rest of the pot invested. You withdraw what you need, when you need it, and the untouched portion stays in the market.

I'm years away from drawdown myself, but understanding what is pension drawdown and how it works now is shaping decisions I'm already making with my SIPP. My parents have also been through this recently, and many of us have had to get our heads around this topic to support our parents as they transition to retirement. It's one of those things you think you can ignore until it's suddenly relevant, either for you or for someone you love.

Since April 2015, all new drawdown arrangements in the UK are "flexi-access" drawdown. There are no caps on how much you can take out. The flexibility is total, and so is the responsibility.

For a broader view of all the ways you can access your pension, see our guide on how to take money from your pension. This article focuses on drawdown specifically.

How does pension drawdown work?

When you move money into flexi-access drawdown, the process has two stages.

First, you designate some or all of your pension pot to drawdown. At this point you can take up to 25% of the designated amount as a tax-free lump sum, subject to the Lump Sum Allowance of £268,275 across all your pensions. Under HMRC rules, for every £1 you take as tax-free cash, £3 moves into your flexi-access drawdown pot.

Second, the remaining funds sit in your drawdown pot, still invested. You draw income whenever you choose, in whatever amounts suit you. Each withdrawal is taxed as income at your marginal rate under PAYE.

You don't have to take the tax-free cash and income at the same time. You can take your lump sum upfront and leave the drawdown pot untouched for years. Or take both together. Or designate your pot in stages, taking 25% tax-free from each tranche. The mechanics are flexible.

Key term: Drawdown is a way of taking flexible income from a defined contribution pension pot while keeping the remainder invested. There is no cap on how much you can withdraw per year.

You don't have to designate your whole pot at once

This is worth understanding because it affects how the 25% tax-free entitlement works in practice.

Say you have a £200,000 pension pot. You could designate the full £200,000, take £50,000 tax-free (25%), and have £150,000 in drawdown for future income.

Or you could designate £80,000, take £20,000 tax-free, leave £60,000 in drawdown, and keep the remaining £120,000 uncrystallised. When you designate another chunk later, you get 25% tax-free on that tranche too, up to your remaining Lump Sum Allowance.

Phasing drawdown like this is common. It gives you control over when you use your tax-free entitlement and helps manage income across tax years. This is exactly the kind of thing I'm planning for, and it's why I want a SIPP with a provider that makes this easy to manage rather than one where I can't see what's going on.

How is pension drawdown taxed?

Every penny you withdraw from a drawdown pot (after the initial tax-free lump sum) is added to your taxable income for that year. Your pension provider deducts tax under PAYE before paying you.

If your only income is drawdown withdrawals, the first £12,570 is covered by your Personal Allowance and is tax-free. The next £37,700 is taxed at 20%. Above that, 40%, then 45% above £125,140.

If you also have the State Pension, employment income, or rental income, your drawdown withdrawals stack on top. A £20,000 drawdown withdrawal looks modest on its own, but if you already have £30,000 of other income, it pushes your total to £50,000 and part of the withdrawal lands in the higher rate band.

The practical consequence: the less other income you have in a given year, the more tax-efficient your drawdown becomes. Many people use the years between stopping work and receiving the State Pension to draw from their pension at lower tax rates. That window is valuable, and it's one reason I think about drawdown long before I'll actually use it.

There is no National Insurance on pension income at any age.

The emergency tax trap

Your first drawdown withdrawal in a tax year is often overtaxed. This happens because your pension provider may not have the correct tax code and applies an emergency code instead, which assumes your single withdrawal is what you'll earn every month that year.

A one-off £10,000 withdrawal under an emergency Month 1 code gets taxed as if you earn £120,000 a year. The deduction is wrong, and it can be a nasty shock.

You don't have to wait until April to fix this. HMRC provides form P55 for partial withdrawals and P50Z or P53Z for other situations. Submit them immediately and HMRC typically refunds within four to six weeks. Don't leave your money sitting with HMRC when it should be in your account.

The Money Purchase Annual Allowance

This is the pension drawdown rule that catches people off guard, and it's one I pay close attention to even now.

Taking your 25% tax-free cash does not trigger the Money Purchase Annual Allowance. But the moment you take your first taxable income from a drawdown pot, the MPAA kicks in. From that point, you can only contribute £10,000 per year to defined contribution pensions, down from £60,000. Once triggered, it cannot be reversed.

If you're semi-retired, still working, or planning to return to work, this matters enormously. Taking a single taxable drawdown payment, even a small one, permanently slashes your contribution capacity.

Taking tax-free cash only and leaving the drawdown pot untouched does not trigger the MPAA. Neither does taking a small pot payment (pots under £10,000) under the specific small pot rules. But any taxable income from a flexi-access drawdown pot does.

What happens to your investments in drawdown

Your pot stays invested throughout drawdown. You choose the funds, just as you did when contributing. Most providers offer the same range in drawdown as they do for accumulation.

Some providers offer "Investment Pathways", pre-built options designed for different retirement goals. These were introduced by the FCA to help people who don't want to make active decisions in drawdown. Options typically include things like "I plan to leave my pot invested for a long time" or "I plan to take all my money within the next five years."

The risk profile of your investments should reflect the fact that you're now spending from the pot, not just building it. A 100% equity portfolio that made sense at 35 might not work when you're withdrawing regularly at 60 without decades to recover from a downturn.

This is where "sequencing risk" comes in. If markets fall sharply in the early years of drawdown while you're making withdrawals, the combined effect is severe. Investment losses plus cash leaving the pot means less capital to benefit from any recovery. The pot never catches up. This risk is the main reason people combine drawdown with an annuity for their essential spending.

How much can you safely withdraw?

There is no official answer. The commonly cited "4% rule" (from US research in the 1990s) suggests withdrawing 4% of your pot per year, adjusted for inflation, should make the money last roughly 30 years. It's a starting point, not a guarantee, and it was designed for a different tax system and investment landscape.

In practice, on a £300,000 drawdown pot, 4% is £12,000 a year. Combined with a full State Pension of around £12,000, that's roughly £24,000 before tax. Whether that's enough depends entirely on your life.

Withdrawal rates above 5% to 6% significantly increase the risk of running out. Below 3% is conservative and may leave a large pot at death.

Running the actual numbers on your own situation, with your other income sources and your spending, is the only way to answer this properly. A one-size figure from a 30-year-old American study will only get you so far.

Pension drawdown vs annuity

These are not either/or. You can use both.

Drawdown gives you flexibility, continued growth potential, and the ability to pass the remaining pot to beneficiaries on death (often tax-efficiently, though rules change from April 2027). The trade-off: you carry the investment risk and the risk of outliving your money.

An annuity gives guaranteed income for life. You hand over a lump sum and receive payments until you die. If you die early, the insurer keeps the remainder (unless you chose a guarantee period or joint life option).

A common approach: use drawdown for flexible spending and buy an annuity to cover your essential fixed costs. You can buy an annuity at any point during drawdown. For a detailed comparison, see our guide on pension annuities.

What happens to drawdown on death

If you die with money in a drawdown pot, it can pass to your nominated beneficiaries. Under current rules (before the announced April 2027 changes):

If you die before 75, beneficiaries can receive the remaining fund tax-free, either as a lump sum or inherited drawdown, provided funds are designated within two years of the provider being notified.

If you die at 75 or over, withdrawals by beneficiaries are taxed as income at their marginal rate.

From 6 April 2027, the government intends to bring most unused pension funds within the scope of Inheritance Tax. This is announced but not yet legislated. See our guide on inheritance tax and pensions for the full picture.

How to set up drawdown

You set up drawdown through your pension provider. Most SIPP providers and many workplace schemes offer it. Some have minimum pot sizes (commonly £1,000 to £10,000) and minimum withdrawal amounts (often £50 per month or £200 per lump sum).

You can transfer to a different provider before entering drawdown if your current scheme doesn't offer it or charges too much. If you have pensions scattered across old employers, the pension dashboard can help you find them before you make any decisions.

If you're over 50 with a defined contribution pension, you can book a free Pension Wise appointment (a government service through MoneyHelper) for impartial guidance. It's not financial advice, but it's a useful starting point, particularly if you're approaching this for the first time.

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Key takeaway: Pension drawdown gives you complete flexibility over how and when you take income, but it requires you to manage the risk of your money running out. The tax implications of each withdrawal, particularly the MPAA trigger and the emergency tax trap, are worth understanding long before you start taking money out.

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Frequently asked questions

What is pension drawdown?

Pension drawdown lets you take income from your pension pot while keeping the rest invested. You can withdraw as much or as little as you want, whenever you want, from age 55 (rising to 57 in April 2028). Each withdrawal is taxed as income.

How is pension drawdown taxed?

When you designate funds to drawdown, you can take up to 25% tax-free. All subsequent withdrawals from the drawdown pot are taxed as income at your marginal rate under PAYE. There is no National Insurance on pension income.

What is the difference between drawdown and an annuity?

Drawdown keeps your pot invested and gives you flexible access. An annuity converts your pot into a guaranteed income for life. Drawdown offers flexibility but carries investment and longevity risk. An annuity removes both risks but cannot be reversed.

Can I run out of money in drawdown?

Yes. Unlike an annuity, drawdown does not guarantee your money will last. If you withdraw too much or your investments perform poorly, your pot can be depleted. Managing withdrawal rates carefully is essential.

Does drawdown trigger the Money Purchase Annual Allowance?

Taking your 25% tax-free cash alone does not trigger the MPAA. But the first time you take taxable income from your drawdown pot, the MPAA is triggered, reducing your future defined contribution pension contributions to £10,000 per year.