HMRC Pension Tax Refunds: 3.2 Million Pensioners to Get Money Back

HMRC pension tax refunds are set to reach 3.2 million retirees after an error in the way some State Pension income was calculated led to overpayments of tax.

The refunds will cover errors dating back to the 2020-21 tax year. HMRC estimates the total value of the repayments at £19 million, with the average affected pensioner receiving about £6.

That figure may sound modest, but the issue has raised wider questions about how pension tax records are handled, particularly for people whose income is already being calculated automatically. Older tax years also present a separate problem because HMRC says it doesn’t have enough data to automatically identify every affected taxpayer.

Here’s what the HMRC pension tax refunds cover, how the calculation error happened, what pensioners may receive and what could happen if you believe you were overcharged before April 2020.

Key Takeaways

• HMRC plans to refund 3.2 million pensioners affected by a State Pension tax calculation error.
• The refunds cover identified errors from the 2020-21 tax year onward and are estimated to total £19 million.
• Average repayments are expected to be relatively small, although some higher-rate taxpayers could receive more.
• Older errors dating from 2010 to 2020 won’t be refunded automatically unless taxpayers can provide evidence.
• HMRC says repayments for the last six affected tax years may not be completed until March 2027 at the earliest.

HMRC Pension Tax Refunds Follow a Long-Running Calculation Error

The problem wasn’t caused by a change to pension tax rates. It came from how HMRC calculated the taxable amount of the State Pension.

Under the method described in HMRC guidance, a full year’s taxable State Pension should account for the timing of the annual rate change. That means one week is calculated using the previous year’s weekly rate, followed by 51 weeks at the new rate.

According to the source material, HMRC instead used 52 weeks at the higher rate for some pensioners. The result was a taxable pension figure that was higher than it should have been.

For someone with a relatively small tax liability, the difference might only amount to a few pounds. But the calculation was reportedly used for more than 15 years, meaning the issue affected a large number of people over time.

Why the State Pension Calculation Matters

State Pension income is taxable when a person has enough total taxable income to owe Income Tax. The State Pension can therefore affect the amount of tax due on other pension or employment income.

A small change in the taxable State Pension figure can alter the calculation used by HMRC. For pensioners whose income sits close to a tax threshold, even a relatively small error in the reported pension amount can affect the final tax position.

That’s why the distinction between 51 weeks at the new rate and 52 weeks at the new rate matters, even if the eventual refund for an individual is relatively small.

How Much Could Pensioners Receive From HMRC?

The average refund is expected to be around £6 per affected person for the period covered by the automatic correction. The total repayment bill is estimated at £19 million for 3.2 million pensioners.

The amount won’t be identical for everyone. It depends on the pension received, the tax rate applied and the number of years in which the person was affected.

Pensioner example	Average or stated repayment
Full basic State Pension	About £1.76 per affected year
Full new State Pension	About £2.30 per affected year
Additional-rate taxpayer on new State Pension, 2023-24 example	Up to £8.42 for that tax year

These figures are examples from the reported correction rather than a guarantee of what any individual will receive.

A pensioner’s total refund can also depend on how many tax years were affected. Someone affected across several years could therefore receive more than the single-year figures shown above.

When Will HMRC Pension Tax Refunds Be Paid?

HMRC has said the correction has been resolved going forward for retirees whose tax is deducted automatically from their pension.

The retrospective part is taking longer.

Refunds covering the last six tax years are not expected to be completed until March 2027 at the earliest. The delay reflects the work required to identify affected taxpayers and correct the historical records.

For most people covered by the automatic process, HMRC says repayments will be made through tax code adjustments or credits applied to Self Assessment accounts. A cheque may be issued where necessary.

This means pensioners shouldn’t assume that they need to submit a new claim simply because they’ve heard about the correction. The repayment method depends on how their tax is collected.

What About Pensioners Who File Self Assessment?

There is a separate complication for people who complete Self Assessment tax returns.

HMRC’s chief executive, John-Paul Marks, confirmed that the underlying error had not yet been fully resolved for pensioners using Self Assessment. As a result, some figures pre-populated into 2025-26 tax returns could still be too high.

That matters because automated tax-return information is supposed to reduce the amount of data taxpayers have to enter themselves. If the underlying pension figure is incorrect, however, the automated calculation can carry the problem into the return.

Anyone affected should check their records carefully and follow HMRC’s current instructions rather than assuming that a pre-populated figure is necessarily correct.

Why Older HMRC Pension Tax Refunds Are More Complicated

The biggest limitation concerns tax years before April 2020.

HMRC has said it won’t automatically refund pensioners who were overtaxed between 2010 and 2020. People who believe they were affected during those years can still ask HMRC to review their position, but they’ll need evidence supporting their claim.

HMRC says April 2020 is the earliest point for which its available data allows the affected cases to be identified and corrected reliably and efficiently through the automatic process.

That creates a clear difference between recent and older tax years. A pensioner may have been affected before 2020, but identifying the exact amount requires records that HMRC says it doesn’t have in a form that allows automatic repayment.

What Evidence Might Matter?

The source material doesn’t provide a complete list of documents HMRC will accept for historical claims. That means pensioners shouldn’t assume that a particular document will automatically establish entitlement.

If you believe you’ve been overtaxed in an older tax year, keep any relevant State Pension statements, tax calculations, tax returns, payment records and correspondence with HMRC or the Department for Work and Pensions. HMRC says earlier requests will be considered individually.

Verify before publication: Confirm the current HMRC procedure and exact documentary evidence required for claims relating to tax years before April 2020.

What Caused the Pension Tax Error?

The issue traces back to a mismatch between the way the taxable State Pension should have been calculated and the figures used by HMRC.

State Pension rates change around the start of the UK tax year. HMRC’s published approach accounts for a short period between the beginning of the new tax year and the following Monday, when the new State Pension rate takes effect.

The source says HMRC instead charged some pensioners as though they had received 52 weeks at the higher rate.

The figures used by HMRC came from information supplied by the Department for Work and Pensions. The resulting discrepancy could therefore feed directly into the tax calculation used for affected pensioners.

The error was first publicly highlighted by Telegraph tax columnist Mike Warburton in May, according to the source material. HMRC had been working on a fix since the previous autumn before confirming that the problem remained unresolved for some Self Assessment taxpayers.

What Pensioners Should Check

There’s no need to estimate a refund simply by multiplying one year’s average figure by the number of years you’ve received the State Pension. The actual calculation depends on the individual’s circumstances and tax position.

If you receive a State Pension and have other taxable income, your tax code can be used to collect tax due on that pension. If you file a Self Assessment return, the State Pension amount is reported as part of the return.

A sensible first step is to review your HMRC tax records and compare the State Pension figures used in your tax calculations with your own records. HMRC’s online personal tax services allow taxpayers to review tax information and, where applicable, manage tax-related records.

If something doesn’t look right, don’t assume that the difference automatically means you’re entitled to a refund under this particular correction. The error described here relates to a specific State Pension calculation issue.

What If You Think HMRC Still Owes You Money?

For tax years from April 2020 onward, HMRC says it can identify and correct affected cases using the data available to it. Repayments may therefore arrive through the normal tax system rather than through a separate application.

For earlier years, the situation is different. HMRC says taxpayers who have evidence that they were affected can ask for their position to be reviewed on a case-by-case basis.

That distinction is worth keeping in mind before spending time trying to reconstruct many years of tax records.

Why the Refunds Are Smaller Than Some Pensioners May Expect

News of millions of pensioners receiving refunds can make the overall £19 million figure sound large. Spread across 3.2 million people, however, the average payment is only about £6.

That’s because the underlying annual difference was relatively small for many pensioners. The source estimates an average refund of £1.76 per year for someone receiving the full basic State Pension and £2.30 per year for someone receiving the full new State Pension.

Higher-income pensioners can face a different calculation. The source gives an example of an additional-rate taxpayer receiving the new State Pension who could be owed as much as £8.42 for the 2023-24 tax year.

The numbers show why there isn’t one standard HMRC pension tax refund for every affected person.

What HMRC Says About the Error

John-Paul Marks, HMRC’s chief executive, apologized for the error and said the department would carry out an internal audit review.

The review is intended to identify lessons from the problem and apply them to future processes. Marks also said that taxpayers with evidence of earlier-year overpayments can ask HMRC to examine their circumstances individually.

Antonia Stokes of the Low Incomes Tax Reform Group said the lack of data preventing automated repayments further back was disappointing, while also saying taxpayers should be able to seek corrections for earlier years if they can show they were overcharged.

The comments point to two separate issues: fixing the current calculation and making older records accessible enough to identify historic errors.

Frequently Asked Questions About HMRC Pension Tax Refunds

Who Is Eligible for HMRC Pension Tax Refunds?

HMRC says 3.2 million retirees affected by the State Pension calculation error will receive refunds for identified overpayments dating from the 2020-21 tax year. The exact amount depends on the individual’s pension and tax circumstances.

How Much Will the HMRC Pension Tax Refunds Be?

The average refund is expected to be about £6 per affected person. The source estimates roughly £1.76 per affected year for someone receiving the full basic State Pension and £2.30 for someone receiving the full new State Pension.

When Will HMRC Pension Tax Refunds Be Paid?

HMRC says repayments for the affected recent tax years aren’t expected to be completed until March 2027 at the earliest. Payments may be made through tax code changes, credits to Self Assessment accounts or, where necessary, by cheque.

Can I Claim a Refund for Pension Tax Paid Before 2020?

Possibly, but older years aren’t included in the automatic repayment process. HMRC says people who believe they were affected between 2010 and 2020 can ask for a review if they have the necessary evidence. Those requests will be assessed individually.

Does the State Pension Have to Be Included on a Tax Return?

Yes, for people who file Self Assessment, the State Pension amount is included when calculating taxable income. HMRC says some pre-populated 2025-26 figures may still be too high because the correction hadn’t been completed for all Self Assessment cases.

Key Takeaways

• HMRC is correcting a State Pension tax calculation error affecting 3.2 million pensioners.
• The automatic refunds cover identified cases from the 2020-21 tax year onward.
• The average repayment is expected to be about £6, although individual amounts can vary.
• Older tax years require evidence and won’t be automatically repaid under the current process.
• Self Assessment taxpayers should pay particular attention to pre-populated State Pension figures.

Conclusion

The HMRC pension tax refunds program will return money to millions of retirees, but the amounts are generally expected to be small. The bigger issue is making sure the underlying calculation is now correct and that people who may have been affected in older years know how to seek a review.

If you think your tax records were affected, check the information HMRC has on file and keep your pension and tax documents available. For older years, evidence may make the difference between an automatic correction and an individual review.

Disclaimer

This article is for educational and informational purposes only and isn’t financial or tax advice. Tax rules and individual circumstances can vary, so readers should check current HMRC guidance or seek professional tax advice where appropriate.