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Tax Code Decoder

Decode the tax code on your NHS payslip — Personal Allowance, BR/D0 second-job codes, K codes and emergency W1/M1.

Embed this tool on your site — free

Your Tax Code

NHS payslips show your code near your tax deduction. The standard code for 2025/26 is 1257L — the £12,570 Personal Allowance.

What It Means

Tax-free Personal Allowance
£12,570
  • Your tax-free Personal Allowance is £12,570 per year
  • L — standard Personal Allowance (you get the basic tax-free amount)

If your code looks wrong, contact HMRC or check your Personal Tax Account — a wrong code can mean hundreds over/underpaid per year.