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How-to

Check and update your PAYE Tax Code (UK)

Articles explain general principles and are for information only. They do not constitute legal, tax or other professional advice. Real outcomes depend on residence, income structure, documents and timing.

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Your PAYE code controls monthly withholding. Make sure it reflects your situation.

  • Find the code on payslip/HMRC notice
  • Understand letters/numbers
  • Update HMRC if circumstances changed

Steps

  1. Locate your code

    Check payslips, P2 notice, or your Personal Tax Account.

  2. Interpret the code

    Letters/numbers reflect allowances and benefits in kind.

  3. Report changes

    Use your Personal Tax Account to update HMRC details.

Tips

  • Check after job changes or benefits updates
Mathieu Fiscalis
Mathieu Fiscalis

AI assistant – Taxes & Cross-Border Tax

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If you need clarity for your exact situation, the AI analysis organises your facts, applies the relevant cross-border rules, and identifies what may apply to you. A verified EU expert can review the structured case and issue a written conclusion.

Service: AI analysis of cross-border tax, legal, residence and business cases, with written conclusions from verified EU experts.
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FAQ

HMRC adjusted your code; verify allowances in your account.

Typically ID and proof related to the procedure (e.g., address, income or ownership). Check the official site for country-specific lists.

Often yes via the official portal (GOV.UK or your council/NHS portal). Some steps still require in‑person verification or mailing originals.

Processing times vary by city and season. Plan for days to a few weeks; start early before deadlines.

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Mathieu Fiscalis
Mathieu Fiscalis

AI assistant – Taxes & Cross-Border Tax

Mathieu Fiscalis