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Pension Drawdown Explained: How Flexi-Access Drawdown Works

Complete guide to pension drawdown — how it works, the tax rules, withdrawal strategies, risks, and how to make your money last in retirement.

12 min read Updated March 2026

What Is Pension Drawdown?

Pension drawdown — officially called flexi-access drawdown — is the most popular way to access defined contribution pensions in the UK. It allows you to keep your pension invested while withdrawing income flexibly, on your own terms.

Since the pension freedoms introduced in 2015, drawdown has overtaken annuities as the preferred method of taking retirement income. But with flexibility comes responsibility — you need to manage your money carefully to make it last.

In a nutshell: Drawdown lets you take 25% of your pension tax-free and keep the rest invested. You draw income as needed — monthly, annually, or ad hoc. Your remaining pot continues to grow (or shrink) with the markets.

How Pension Drawdown Works

  1. Move into drawdown — your pension provider moves your pot (or part of it) into a drawdown arrangement
  2. Take your tax-free cash — up to 25% can be taken immediately as a tax-free lump sum
  3. Choose your investments — the remaining 75% stays invested in funds you select
  4. Withdraw income — take regular or ad-hoc withdrawals, taxed as income
  5. Manage over time — review your investments and withdrawal rate regularly

Tax on Pension Drawdown

Understanding the tax treatment is crucial for efficient withdrawals:

Withdrawal TypeTax Treatment
First 25% (tax-free cash)Completely tax-free
Remaining 75% (drawdown income)Taxed as income at your marginal rate
UFPLS (uncrystallised funds pension lump sum)25% tax-free, 75% taxed — taken from uncrystallised pot
Tax tip: By controlling your withdrawals each tax year, you can stay within lower tax bands. For example, if your only income is drawdown, keeping total withdrawals below £50,270 (2025/26) keeps you in the basic-rate band, and below £12,570 means no tax at all.

Withdrawal Strategies

How you withdraw is as important as how much. Common strategies include:

The 4% Rule

Withdraw 4% of your initial pot value in year one, then adjust for inflation each year. Designed to sustain withdrawals for approximately 30 years. Simple but inflexible — does not account for changing needs or market conditions.

Natural Yield

Only withdraw the income generated by your investments (dividends and interest) without touching the capital. Preserves the pot for inheritance but income may be variable and lower than other strategies.

Bucket Strategy

Split your pot into three "buckets":

  • Bucket 1 (cash) — 1-2 years' income in cash, for immediate withdrawals
  • Bucket 2 (bonds/cautious) — 3-5 years' income in lower-risk investments
  • Bucket 3 (growth) — remainder in equities for long-term growth

This protects near-term income from market volatility while keeping long-term money invested for growth.

Floor and Upside

Secure essential spending with guaranteed income (annuity or State Pension), then use drawdown for discretionary spending. This ensures your basic needs are always covered regardless of market performance.

The Risks of Drawdown

Important: Unlike an annuity, drawdown does not guarantee your income will last for life. You bear the investment risk and the longevity risk. Poor market returns or excessive withdrawals can deplete your pot.
  • Longevity risk — you might live longer than expected and run out of money
  • Investment risk — markets can fall, reducing your pot when you need it most
  • Sequence of returns risk — poor returns in the early years of drawdown can permanently damage your pot, even if markets recover later
  • Inflation risk — if your withdrawals do not keep pace with inflation, your spending power declines
  • Behavioural risk — the temptation to withdraw too much, too soon

Drawdown vs Annuity: A Quick Comparison

FeatureDrawdownAnnuity
Income guaranteeNo — depends on investmentsYes — guaranteed for life
FlexibilityFull — withdraw what you want, when you wantNone — fixed income once purchased
Investment growthYes — pot remains investedNo — you give up the pot
Death benefitsRemaining pot inheritedDepends on annuity type (often nothing)
RiskYou bear all investment and longevity riskInsurer bears the risk

Who Is Drawdown Best Suited For?

  • People with other guaranteed income (State Pension, DB pension) covering essential costs
  • Those comfortable with investment risk
  • People who want to pass on remaining pension to beneficiaries
  • Those with larger pots who can afford to ride out market downturns
  • People who want flexibility in their retirement income

Next Steps

If you are approaching retirement, compare drawdown with annuities and consider a blended approach. Get advice on withdrawal strategies and investment choices. And review your drawdown plan regularly — at least annually — to ensure your money is on track to last as long as you need.

Frequently Asked Questions

Pension drawdown (flexi-access drawdown) lets you keep your pension invested while taking income as and when you need it. You can take up to 25% tax-free, with the rest taxed as income. Your remaining pot stays invested, giving it the potential to grow.
The first 25% of your pension can be taken tax-free. Any further withdrawals are taxed as income at your marginal rate — 20% for basic rate, 40% for higher rate, 45% for additional rate. Careful planning can minimise the tax you pay by spreading withdrawals across tax years.
Yes, but it is usually not advisable. Taking your entire pension as a lump sum means 75% is taxed as income in that year, likely pushing you into a higher tax bracket. For example, withdrawing £200,000 would result in £150,000 being taxed as income, creating a significant tax bill.
A common guideline is the 4% rule — withdraw 4% of your pot in the first year, adjusted for inflation thereafter. This aims to make your money last ~30 years. However, the right amount depends on your total income, expenses, other savings, and how long you need the money to last.
Your remaining drawdown pot can be passed to your nominated beneficiaries. If you die before 75, it can be inherited tax-free. If you die at 75 or over, beneficiaries pay income tax at their marginal rate on withdrawals. This makes drawdown attractive for inheritance planning.
Once you take taxable income from your pension via drawdown (beyond the 25% tax-free amount), your annual allowance for future pension contributions drops from £60,000 to just £10,000. This is called the Money Purchase Annual Allowance (MPAA). It does not apply if you only take the 25% tax-free cash.
It depends on your circumstances. Drawdown offers flexibility and potential growth but carries investment and longevity risk. An annuity provides guaranteed income for life but no flexibility. Many people use a combination — an annuity for essential spending and drawdown for discretionary income.
Yes, you can return to work after entering drawdown. However, be aware of the MPAA — your annual pension contribution allowance drops to £10,000 once you have taken taxable drawdown income. You can still contribute to a pension, but the tax-relievable amount is limited.

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