Self Assessment for pensioners: when you still need a return

Most pensioners do not need to file a Self Assessment tax return. HMRC collects tax on your State Pension through the tax code on any private or workplace pension, or sends a Simple Assessment bill if the State Pension is your only income. You still need a return if you have income that PAYE cannot reach, such as rent, self-employment, large savings or a capital gain.

How is pension income taxed?

Pension income is taxed through PAYE in most cases. GOV.UK’s tax on your pension page explains the rules:

• State Pension is paid without tax taken off.
• Private and workplace pensions usually deduct tax through PAYE before paying you, and the tax code can include tax owed on your State Pension.
• More than one pension: only one provider collects the State Pension tax, and each pension may have its own tax code.
• State Pension only: if it is above your Personal Allowance, HMRC sends a Simple Assessment bill. If it is below, you usually pay no tax.

Your provider sends a P60 after each tax year showing the tax paid. If HMRC finds you paid too much or too little through PAYE, it sends a P800. See the P800 letter explained.

When do pensioners still need a tax return?

You need a return when you have income or gains that PAYE does not collect. GOV.UK’s who must send a tax return page and our Self Assessment thresholds guide list the triggers.

Rental income between £1,000 and £2,500 does not need a return. Contact HMRC instead, so it can collect the tax through your tax code. The first £1,000 of gross rent is covered by the property allowance, according to GOV.UK’s allowances guidance.

If HMRC has sent you a notice to file, you must file, even if none of the above applies, unless HMRC withdraws it.

What is Simple Assessment?

Simple Assessment is a tax bill HMRC works out and sends by letter, without you filing a return. Pensioners whose State Pension is their only income, and is above the Personal Allowance, receive one.

GOV.UK’s Simple Assessment page sets the deadlines for 2025-26:

1. Letter received before 31 October 2026: pay by 31 January 2027.
2. Letter received on or after 31 October 2026: pay within 3 months of the letter’s date.
3. Query it within 60 days if any figure is wrong.
4. Pay in instalments if you like, as long as the full amount is paid by the deadline. Use the 14-character reference starting with “X”.

Will the State Pension alone push me into tax?

Not in 2026-27. GOV.UK gives the full new State Pension as £241.30 a week, which is £12,547.60 a year. That is £22.40 below the £12,570 Personal Allowance.

From 6 April 2027 the full new State Pension rises to £13,036.40, above the frozen Personal Allowance. The Budget 2026 Pension Tax Allowance explainer says people over State Pension age whose total income is no more than that pay no income tax, and those whose allowance covers all their tax “will not receive a Simple Assessment for that tax year”.

The allowance tapers by £1 for every £3 of income above £13,036.40 and disappears at £13,319. HMRC applies it automatically; you do not need to claim. All income counts, including rent and self-employment, and if you file a return, the allowance is taken into account in your overall tax position. See the Pension Tax Allowance.

What about the Winter Fuel Payment charge?

If your own total income is over £35,000, HMRC takes back the Winter Fuel Payment. PAYE-only pensioners repay it through their tax code. If you already file Self Assessment, it goes on your return as a Winter Fuel Payment charge. Our guide to Winter Fuel Payment recovery has the dates and amounts.

Which applies to you?

• If your only income is pensions and savings under £10,000, you almost certainly do not need a return. Check your tax code each April.
• If you let a property, run a small business or do consultancy work, you need a return once you pass the thresholds above.
• If you sold shares, a second home or other assets at a gain, check whether Capital Gains Tax is due and how to report it.
• If you get a Simple Assessment letter, check the figures against your P60 and pay by the date on the letter.
• If you filed in past years but no longer need to, tell HMRC before 31 January 2027 so it can cancel the notice. See do I need to file if I earned nothing?

What to do now

1. Gather your P60s, bank interest statements and any rent or business records for 6 April 2025 to 5 April 2026.
2. Compare them with the table above.
3. If you need a return for 2025-26, file online by 31 January 2027.
4. If you are unsure, phone HMRC. Our HMRC Self Assessment helpline guide gives the number and opening hours.

Frequently asked questions

Do pensioners have to do a tax return?

Not usually. Most pensioners pay tax through PAYE on a private pension, or receive a Simple Assessment bill. A return is needed for rent, self-employment, large savings, capital gains or foreign income.

Do I need to file a tax return if my only income is the State Pension?

No. If it is above your Personal Allowance, HMRC sends a Simple Assessment bill. The full new State Pension of £12,547.60 a year is below the £12,570 allowance in 2026-27.

Do pensioners with rental income need Self Assessment?

Yes, if rental income is over £2,500 after expenses, or £10,000 before. Between £1,000 and £2,500, contact HMRC so it can collect the tax through your tax code.

Will the Pension Tax Allowance stop me filing a return?

Not if you have another reason to file, such as rental income. The allowance only removes Simple Assessment where it covers all your tax.

What if my Simple Assessment is wrong?

Contact HMRC within 60 days of the letter. Check it against your P60 and pension statements first.