Emergency Tax on Pension Drawdown: How to Avoid It and Reclaim What You're Owed

One of the most frustrating — and surprisingly common — surprises for people taking money from their pension is receiving far less than they expected. The culprit is usually emergency tax on pension drawdown.

HMRC applies emergency tax when you make your first flexible withdrawal from a pension pot. In many cases, this results in a tax deduction that's two or three times higher than it should be — sometimes leaving people short by thousands of pounds. The good news is that you can reclaim it, often quickly. This article explains exactly how emergency tax works, why it happens, and which HMRC form to use to get your money back.

Why Does HMRC Apply Emergency Tax on Pension Withdrawals?

When you take a flexible pension withdrawal for the first time, your pension provider doesn't usually hold an up-to-date tax code for you. Without a valid tax code, HMRC instructs them to use an emergency tax code — typically Month 1 basis (also shown as "M1" or "W1" on your payslip).

The problem is that Month 1 basis assumes you'll take the same amount every month for the rest of the tax year. So if you take a lump sum of £20,000 in one go, HMRC effectively assumes you'll earn £20,000 × 12 = £240,000 that year — and taxes your withdrawal accordingly. At that income level, much of it falls into the 40% or even 45% tax band, even if your actual annual income is far lower.

How Much Tax Could You Overpay?

The overpayment varies depending on your total income and the size of your withdrawal, but it's common for first-time drawdown users to overpay between £1,000 and £8,000 in tax on a single withdrawal.

Here's a simplified illustration of the scale of overpayment:

Figures are illustrative for 2025/26. Assume no other income in the tax year. Your circumstances will vary.

The Three HMRC Reclaim Forms

HMRC provides three different forms to reclaim overpaid pension tax. The correct form depends on whether you've taken all the money from your pension pot or just part of it.

P55 — Partial Withdrawal

Use Form P55 if you have taken a partial withdrawal from your pension pot and the pension pot has not been fully emptied. This is the most common scenario for drawdown users who take a lump sum while leaving the rest invested.

• Eligibility: You haven't taken all your pension savings from this provider
• Not eligible if: Your pension provider is using a cumulative tax code (meaning they've already corrected your tax)
• Download: HMRC P55 form

P53Z — Full Withdrawal and You Have Other Income

Use Form P53Z if you have emptied your pension pot in one go (taken everything as a lump sum) and you have other income in the same tax year (such as employment, State Pension, or other pensions).

• Eligibility: You've taken the full pension pot, and you have other taxable income
• Download: HMRC P53Z form

P50Z — Full Withdrawal and No Other Income

Use Form P50Z if you have emptied your pension pot and you have no other income in the tax year — you've stopped working and this pension payment is your only income.

• Eligibility: You've taken the full pension pot, and you have no other taxable income this tax year
• Download: HMRC P50Z form

How to Complete and Submit the Form

All three forms can be completed online via the GOV.UK website, or downloaded and posted to HMRC. The online route is significantly faster.

You'll need the following information before you start:

• Your National Insurance number
• The amount you withdrew from your pension
• The amount of tax deducted (shown on your pension provider's payment advice or P45)
• Your pension provider's name and address
• Details of any other income in the tax year (employment, other pensions, State Pension)
• Your bank details for the refund

Once submitted online, HMRC typically processes refunds within 4–6 weeks, though many people report receiving money back within 2–3 weeks. Postal submissions take longer — allow 8–12 weeks.

Can You Avoid Emergency Tax Altogether?

In some cases, yes — though it depends on your pension provider and circumstances.

Take a Small Initial Withdrawal First

Some providers will issue you an updated tax code after your first (even small) withdrawal. If you take a minimal initial withdrawal — say £1 — your provider may receive a new tax code from HMRC before you take your main withdrawal. Your main withdrawal will then be taxed correctly from the outset.

Not all providers support this approach, so check with yours first.

Multiple Smaller Withdrawals

If you take regular income from your drawdown pot rather than a single large lump sum, your provider is more likely to have the correct tax code in place and tax you accurately from the second payment onwards. The first payment may still be on emergency tax, but the overpayment will be smaller.

Wait for HMRC to Update Your Code

If you're not in a hurry, your pension provider may receive an updated tax code from HMRC automatically through the PAYE system — particularly if you have other income sources. Once the correct code is applied, future withdrawals will be taxed accurately. However, this approach doesn't help with the tax already overpaid on your first withdrawal.

What If the Tax Year Has Already Ended?

If you overpaid tax in a previous tax year and didn't submit a reclaim form in time, you can still claim through your Self Assessment tax return (if you complete one) or by contacting HMRC directly to request a tax review. HMRC will generally process a refund for overpaid tax going back up to four years.

How This Fits Into Drawdown Planning

Emergency tax on pension withdrawals is one of several tax considerations that make drawdown more complex than it first appears. Others include:

• The Money Purchase Annual Allowance (MPAA): Triggering flexible access limits future pension contributions to £10,000 per year. See our guide: MPAA explained — the £10,000 trap.
• Income tax on withdrawals: Only 25% of your pension pot (the tax-free cash) is free of income tax. The remaining 75% is taxed as income in the year you take it.
• Sequence of returns risk: How much you withdraw — and when — has a significant impact on long-term sustainability. See: Sequence of returns risk in drawdown.
• Sustainable withdrawal rates: Many advisers recommend drawing no more than 3.5–4% of your pot per year to preserve capital over a 25–30 year retirement. See: Safe withdrawal rate in pension drawdown.

Getting the tax right from the outset — or reclaiming overpaid tax promptly — is an important part of making your drawdown income as efficient as possible.

Key Takeaways

• Emergency tax applies to your first flexible pension withdrawal because your provider doesn't hold an up-to-date tax code
• It taxes your withdrawal as if you earn that amount every month — leading to significant overpayment
• You can reclaim overpaid tax immediately using P55 (partial withdrawal), P53Z (full withdrawal + other income), or P50Z (full withdrawal + no other income)
• Online submissions are processed in 4–6 weeks; postal takes 8–12 weeks
• You may be able to avoid emergency tax by taking a small initial withdrawal first or switching to regular income payments
• Overpaid tax from previous tax years can be reclaimed via Self Assessment or by contacting HMRC directly

This article is for general information only and does not constitute financial advice. Tax rules are subject to change. Speak to a qualified financial adviser for guidance on your personal circumstances.