BR Tax Code Explained — What It Means and How to Fix It

Updated for 2026/27 rates. Information only — not tax or legal advice.

What Does BR Mean?

BR stands for Basic Rate. Under a BR tax code, HMRC instructs your employer to tax 100% of your income from that job at the 20% basic rate — with no Personal Allowance applied at all, not even the first £12,570 that's normally tax-free.

It's not a penalty and it doesn't mean you've done anything wrong — it's usually a placeholder code used when HMRC doesn't yet have enough information to issue your correct, personalised tax code.

Why Have I Been Given a BR Code?

Second job or pension: the most common reason — HMRC assumes your Personal Allowance is already being used up by your main job, so this one is taxed at BR from the first pound.
New job, no P45: if you started a new job without a P45 from your previous employer and didn't complete a starter checklist correctly, your employer may default to BR (or an emergency code) until HMRC catches up.
HMRC hasn't processed your details yet: sometimes it's simply a timing gap while your record updates.

Overpaying tax on BR? If BR has been applied incorrectly — for example, it's actually your only job — you could be paying significantly more Income Tax than you owe.

Is BR Always Wrong?

No — BR is often correct if it genuinely is a second source of income and your Personal Allowance is fully used against your main job or pension. In that case, taxing the second income at a flat 20% (rather than 0% then 20%) is the right outcome overall, even though it feels like a big chunk of that specific payslip.

How to Fix an Incorrect BR Code

Check your tax code on your latest payslip or in your Personal Tax Account on gov.uk.
If it's wrong — e.g. this is genuinely your only job — contact HMRC directly (phone or via your Personal Tax Account) to update it.
Once corrected, HMRC will issue an updated tax code to your employer, and any tax overpaid is usually refunded automatically through your pay, or as a lump sum if the job has ended.

Other Common Non-Standard Codes

BR isn't the only placeholder or special-case code — see our guides to emergency tax codes and K codes if your payslip shows something else unfamiliar.

Related Calculators

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Check Your Own Numbers

Rules like these are easier to apply once you can see your actual take-home pay, tax and NI broken down.

Open the Take-Home Pay Calculator →

Written using published HMRC guidance and gov.uk rules, current as of 2026/27. Not a substitute for personalised advice — for your specific circumstances, consult gov.uk or a qualified adviser via the FCA Register.

Frequently Asked Questions

Does BR mean I'm being taxed too much?

Not necessarily — BR is correct if this genuinely is a second job or pension and your Personal Allowance is already applied elsewhere. It's only wrong if it's incorrectly applied to what should be your only source of income.

How much extra tax does a BR code cost?

If BR is wrongly applied to your only job, you lose the full £12,570 tax-free Personal Allowance — costing up to £2,514 a year in extra Income Tax (20% of £12,570) compared to the standard 1257L code.

How long does it take to fix a BR tax code?

Once you contact HMRC and they update your record, your employer usually applies the new code within one or two pay periods, with any overpaid tax refunded through your next payslip.

Can I check what my correct tax code should be?

Yes — check your Personal Tax Account on gov.uk, or use HMRC's tax code checking tool, which explains exactly what code you should be on based on your circumstances.