Tax Code Decoder

Enter your HMRC tax code to see what it means, how much you can earn tax-free, and whether it looks correct.

Your Tax Code

Common Tax Codes

Standard Personal Allowance of £12,570

Marriage Allowance received (£12,570 + £1,260 = £13,830)

Marriage Allowance given (£12,570 - £1,260 = £11,310, displayed as 1131N)

All income taxed at 20% (usually a second job)

All income taxed at 40% (second/third job)

All income taxed at 45% (second/third job)

£4,750 added to taxable income (benefits exceed allowance)

No Personal Allowance (emergency or under review)

No tax deducted (exempt income)

Standard Scottish tax code

Standard Welsh tax code

If your tax code seems wrong, contact HMRC to update it.