UK Tax Refund After Leaving a Job 2026/27 — P45 & P50 Guide

If you leave a UK job part-way through the 2026/27 tax year and do not immediately start another one, you may have paid more PAYE Income Tax than your final income requires. The correct route depends on what happens next: a person who has stopped working and meets HMRC's conditions may be able to claim during the year using form P50, while someone who starts a new job should normally give their P45 to the new employer so the payroll record can be updated.

This guide covers an ordinary employee leaving a job. It does not calculate a guaranteed refund, replace a Self Assessment return, or cover the separate rules for leaving the UK. Use the Tax Refund Calculator→ as an estimate only and treat HMRC's calculation or repayment as authoritative.

Can I claim tax back after leaving a job?

Possibly. UK PAYE is collected during the tax year, from 6 April to 5 April, and the amount deducted from each payslip is based on the information held about your expected income and allowances. If you stop working before using the allowance and do not replace the job with another source of taxable income, the final year position may show an overpayment.

HMRC's P50 guidance is aimed at people who have stopped working and, for example, have been unemployed for four weeks or more, have retired without a pension from the old employer, do not expect to return to work, or have returned to full-time study. Meeting one of those descriptions does not guarantee a refund: HMRC still needs your income and tax details and must calculate the year-to-date position.

If you have already started another job, the P50 route is usually not the right first step. Give the new employer parts 2 and 3 of your P45 if you have a paper form. The new payroll can then use the previous pay and tax information when calculating deductions.

What does a P45 tell me?

When you leave a job, your employer should give you a P45. HMRC says it shows:

• the date you left;
• your total pay and Income Tax deducted from 6 April up to the leaving date; and
• your tax code.

The P45 is not itself a refund application. It is the evidence that lets a new employer or HMRC understand what has already been paid through PAYE. Keep Part 1A for your records. If you start another job, give the new employer the parts HMRC says they need; if you claim taxable benefits, the relevant office may need your P45 instead.

If your employer has not given you a P45, ask them for one. HMRC says that without the previous employment details you may pay the wrong amount of tax in a new job. Do not invent figures from memory when the document can be corrected or supplied by the employer.

When does P50 apply?

P50 is a route for a current-year repayment when all the surrounding facts fit. HMRC's guidance says you may be able to claim if you have stopped working and:

• you have been unemployed for at least four weeks and are not claiming taxable state benefits;
• you have retired and do not receive a pension from the old employer;
• you do not expect to return to work; or
• you have returned to full-time study.

You cannot use the route while you are still registered with an employment agency; ask the agency to send HMRC your final pay and tax details instead. You may also need a Self Assessment return rather than a P50 if your income or circumstances require one.

How to claim a refund after leaving work

The information needed for a P50 claim can include your National Insurance number, employer PAYE reference, parts 2 and 3 of the P45 where available, and details of income since leaving. HMRC may ask about self-employment profits or benefits because a refund cannot be determined from the old payslip alone.

What if I start another job?

If you move directly to another employer, give them your P45. The new payroll uses it to work out how much tax to deduct. If you do not have the P45, the employer may need a starter checklist or further information, and you should check the resulting tax code rather than assuming the first payslip is final.

If HMRC has complete income details and you have paid too much tax, it may update your tax code and ask the employer or pension provider to refund the difference through pay. HMRC's guidance says the timing can depend on when the new code is received and the pay frequency. A refund through a later payslip is different from a P50 claim made while you are not working.

Read the UK tax codes guide if your new payslip shows an emergency suffix or a code that does not match your circumstances. If you are leaving the country, use the separate UK tax when leaving the UK guide because departure from the UK can involve a different HMRC process.

Which payments can change the result?

The following can change whether a repayment is due and which route is appropriate:

This is why a large tax deduction on the final payslip is not automatically the amount HMRC owes you. The final result depends on total taxable income, allowances, deductions and the tax already paid for the whole tax year.

P50 versus waiting for HMRC's year-end calculation

P50 is designed for eligible people who want to ask about a current-year repayment after stopping work. If you do not claim during the year, HMRC can still reconcile the tax position after 5 April using information from employers, pension providers and benefits offices. HMRC may then send a calculation or instructions about how to receive any repayment due.

The faster-looking route is not always the correct one. If you expect to work again, are receiving taxable income, or have a complicated employment history, letting the new payroll or HMRC reconcile the complete record may prevent an early repayment from being overstated.

Leaving, returning and correcting the record

Keep the leaving date and the next employment date together. A gap of a few weeks can produce a different result from a full-year cessation, especially where the taxpayer receives taxable benefits, pension income or a payment from an agency. If you return to the same employer, ask payroll whether the original employment record is being reopened or a new record is being reported. The code and P45 information should match the actual employment history.

If the final payslip includes holiday pay, a bonus, payment in lieu of notice or a termination amount, identify each item separately. Some payments are ordinary earnings and others may have separate tax or National Insurance treatment. Do not calculate a refund from the net amount in the bank. Use the gross pay, tax deducted, payment date and the employer's PAYE records, then check whether the P45 includes the item.

Where a P45 is wrong, ask the employer to correct the payroll record and issue the appropriate documentation. If the employer cannot correct it, give HMRC the evidence and explain the discrepancy. Keep the original document, corrected document and correspondence. A new employer should not be asked to silently alter the previous employer's figures without an official record.

The same evidence matters when a person starts self-employment or becomes responsible for a tax return after leaving employment. A PAYE refund may be absorbed into the wider Self Assessment calculation rather than paid as an immediate standalone repayment. Check the filing obligation before submitting P50 and keep the leaving-job calculation for the return.

Frequently Asked Questions

Evidence and decision checks

A reliable tax refund after leaving job 2026 27 review starts by fixing the tax year and the date on which the relevant event happened. Record the person's or business's status, the income or transaction category, the amount before tax, tax already withheld, and any election or claim being relied on. Do not combine a headline figure with a final liability: the result can change when another income source, a payment date, an ownership interest or a qualifying condition is added.

Keep the source documents behind every important input. Depending on the subject, that may include payslips, invoices, bank statements, contracts, provider statements, travel records, HMRC notices, payroll submissions, valuations or correspondence. Where an amount is apportioned, write down the method and retain the underlying total. If a correction is made, preserve the original figure and explain the reason, date and evidence for the replacement.

Before relying on the result, check the current official guidance for the same tax year and jurisdiction. Distinguish enacted law from a consultation, draft measure, announcement or future proposal, and record the effective date. Reconcile the final estimate to the relevant return, payroll record or HMRC account. A calculator or explanatory guide can support a decision, but it cannot replace the eligibility test or the official filing and payment process.

Evidence and decision checks

A reliable tax refund after leaving job 2026 27 review starts by fixing the tax year and the date on which the relevant event happened. Record the person's or business's status, the income or transaction category, the amount before tax, tax already withheld, and any election or claim being relied on. Do not combine a headline figure with a final liability: the result can change when another income source, a payment date, an ownership interest or a qualifying condition is added.

Keep the source documents behind every important input. Depending on the subject, that may include payslips, invoices, bank statements, contracts, provider statements, travel records, HMRC notices, payroll submissions, valuations or correspondence. Where an amount is apportioned, write down the method and retain the underlying total. If a correction is made, preserve the original figure and explain the reason, date and evidence for the replacement.

Before relying on the result, check the current official guidance for the same tax year and jurisdiction. Distinguish enacted law from a consultation, draft measure, announcement or future proposal, and record the effective date. Reconcile the final estimate to the relevant return, payroll record or HMRC account. A calculator or explanatory guide can support a decision, but it cannot replace the eligibility test or the official filing and payment process.

Start with your P45 and the current HMRC P50 guidance. Use the Tax Refund Calculator→ to organise an estimate, but treat HMRC's calculation and repayment route as the final authority.

Official sources

• HMRC — Claim back Income Tax when you have stopped working
• HMRC — P45, P60 and P11D forms
• HMRC — Tax codes when you have paid too much or too little tax
• HMRC — What to do when an employee leaves