Guides & packs

Check your pay is right

Everything on this site is free to use: the calculators and the guides below. If you want the full checklist in one place, the PAYE pack is a one-off £4.99 PDF.

The pack

Not on PAYE? Get all 7 tax packs in the Tax Pack Library — £9.99

Free guides

Tax code 1257L explainedWhat the standard code means and how to spot a wrong one. Emergency tax codesW1, M1 and X codes, and how the overpaid tax comes back. How to read your payslipEvery line on a UK payslip, explained. Marriage AllowanceTransfer £1,260 of allowance and backdate the claim. Personal allowance 2026/27£12,570, and how it tapers away above £100,000. All guidesBrowse every take-home pay and tax guide on the site.

Free calculators

Take-home pay calculatorIncome Tax, NI, pension and student loan for 2026/27. Payslip calculatorSee what each line of your payslip should be. All toolsBonus tax, salary comparison, pension and more.

General information, not personal tax advice. Questions or refunds: use the contact page.