How do I reclaim overpaid tax from HMRC?

Full answer

Overpaid tax is common when your tax code is wrong, you change or stop jobs mid-year, you have multiple incomes, or tax was deducted at an emergency rate. How you reclaim depends on why it happened. For employees and pensioners, HMRC reconciles your record after the tax year ends (5 April) and, if you overpaid, sends a P800 or Simple Assessment. A P800 may say you can claim online for a faster bank transfer or wait for a cheque. Always check the figures against your P60 and the Personal Allowance of GBP 12,570 and the bands (20% on income up to GBP 50,270, 40% above) -- HMRC calculations can be wrong if they hold outdated information. If you stop working partway through a year, you may have paid tax on the assumption you would earn for the full year; form P50 lets you reclaim before year end. If you flexibly withdraw a pension lump sum, the provider often applies an emergency 'month 1' code and over-deducts -- reclaim with P55 (more to take, no other income), P53Z (pension emptied, other taxable income) or P50Z (pension emptied, no other income). For pension small-pots and certain lump sums, P53 applies. If you are in Self Assessment, correct an overpayment by amending the return (within 12 months of the filing deadline) or, for older years, by making an 'overpayment relief' claim. You can generally reclaim for the previous four tax years, so do not assume an old error is lost. Worked example: an emergency code taxes a GBP 20,000 pension withdrawal as if it were part of a GBP 240,000 annual income, pushing some into the 40% and 45% bands and over-deducting by thousands -- the relevant P-form recovers it, often within 30 days. Use the income-tax and take-home-pay calculators to work out what you actually owed before you claim. Keep payslips, P45s, P60s and pension statements as evidence.

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