Answers · UK 2025/26

How do I check if my tax code is correct with HMRC?

Check your tax code at gov.uk/check-income-tax, via the HMRC app, on your latest payslip, or by calling 0300 200 3300. The standard 2026/27 code for one job with no adjustments is 1257L. If you have multiple jobs, benefits in kind, or underpaid tax, your code will differ.

Last updated: 20 June 2026Last reviewed: 20 June 2026How we verify

Full answer

How to check and correct your UK tax code in 2026/27. Method 1 — Personal Tax Account (fastest): sign in at gov.uk/personal-tax-account and navigate to 'Pay As You Earn'. You'll see your current tax code and a breakdown of what it includes — Personal Allowance adjustments, company benefits, underpaid tax from prior years, etc. You can also update HMRC about changes directly online. Method 2 — HMRC app: download the free HMRC app, sign in, and view your tax code under the PAYE section. Method 3 — payslip: your tax code appears on every payslip (look for 'Tax Code' or 'TC'). Method 4 — P60 or PAYE notice: HMRC sends a 'Coding Notice' (P2) when your tax code changes — check the post in early spring each year. Method 5 — phone: call HMRC Income Tax helpline on 0300 200 3300 (Monday to Friday, 8am to 6pm). Standard tax code 2026/27: 1257L. This means a Personal Allowance of £12,570 (the 1257 represents £12,570 / 10 = 1257) with the standard personal allowance (L suffix). Common reasons your code might differ: company car or private medical benefit in kind (reduces allowance), underpaid tax from a previous year (reduces allowance), Marriage Allowance received (adds 1,260 = code 1383L), second job (BR code), HMRC pending a review (T suffix). If your code is wrong, HMRC will adjust it and refund or collect the difference -- but you can speed this up by contacting them.