Tax Code Checker — HMRC Code Lookup

Enter your HMRC tax code and find out what it means, your Personal Allowance and if it's correct.

Enter Your Tax Code

Find your tax code on your payslip, P45, P60 or HMRC letter

1257L

Personal Allowance£12,570.00

Monthly Tax-Free£1,047.50

What this means:

Standard tax code — you get the standard Personal Allowance

Disclaimer

This calculator is provided for informational purposes only and should not be considered as financial or tax advice. All calculations are performed locally in your browser — no personal data is collected or sent to our servers. Rates and thresholds are sourced from HMRC and GOV.UK and are updated for the current tax year. Always verify results with HMRC or consult a qualified professional before making financial decisions.