Tax Code Checker

Check your tax code (2026/27)

It's on your payslip, P45/P60 or any HMRC letter. The verdict updates instantly - no sign-up.

Your tax code Where do you live?

This is my only job or pension Untick if you have a second job or a separate pension. I get taxable benefits or a taxable State Pension Company car, medical insurance, State Pension, etc. Another job/pension also has a 1257L-style code i.e. a full tax-free allowance on more than one income. Marriage Allowance

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What the UK tax codes mean (2026/27)

Code	What it means
1257L	The standard code - full £12,570 tax-free Personal Allowance. Most people with one job and no benefits.
BR	All income taxed at 20% (basic rate) with no allowance. Normal for a second job/pension; wrong on your only job.
D0 / D1	All income taxed at 40% (D0) or 45% (D1). Usually a second job for higher/additional-rate taxpayers.
0T	No Personal Allowance - taxed from the first pound. Often happens after a new job without a P45; usually means overpaying.
K (e.g. K475)	Deductions are bigger than your allowance, so extra tax is collected. Common with company cars or tax owed.
M / N	Marriage Allowance: M = you received 10% of your partner's allowance; N = you gave 10% away.
T	HMRC reviews your code individually - other items are included in the calculation.
W1 / M1 / X	Emergency code - temporary and worked out on this pay period only. Often leads to overpaying until HMRC updates it.
S / C prefix	S = Scottish tax rates; C = Welsh (Cymru) tax rates, based on where you live.

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