What tax code 1257L actually means
The standard code for 2025/26 — a £12,570 tax-free personal allowance, applied evenly across the year.
1257L is the standard tax code for the 2025/26 tax year. It gives you a personal allowance of £12,570 — meaning you can earn that much before paying any income tax. It's applied cumulatively, so your allowance is spread evenly across the year. This is the code most employees have if they have one job and no complications.
- Personal allowance
- £12,570
- Applies in
- England, NI & Wales (S1257L in Scotland, C1257L in Wales)
- Calculation
- Cumulative
See this salary on a different tax code → (opens the main calculator pre-filled with 1257L)
What does 1257L mean?
The number in your tax code is your personal allowance divided by ten: 1257 means £12,570 of tax-free income for the year. The L suffix means you're entitled to the standard allowance with no adjustments — no company benefits being taxed through your code, no underpayments being collected, no marriage allowance transfers.
1257L is applied cumulatively. Your payroll spreads the £12,570 evenly through the year — £1,047.50 of tax-free pay per month — and every payday recalculates your tax for the year so far. If you overpaid earlier in the year (say you started work in July), the cumulative calculation automatically refunds the difference through your payslip.
HMRC issues 1257L as the default because the personal allowance has been frozen at £12,570 since April 2021. If your circumstances are plain — one job, no taxable perks — this is almost certainly your code.
When you’ll see 1257L
- This is the default code for most employees with one job and no complications.
- You started a new job and gave your employer a P45 showing a standard code.
- HMRC reset your code at the start of the tax year (6 April).
- A previous adjustment (benefit-in-kind, underpayment) has been cleared from your code.
1257L vs other common codes
| Code | Personal allowance | How income is taxed |
|---|---|---|
| 1257L | £12,570 | Standard bands after the allowance |
| BR | £0 | Flat 20% on everything |
| 0T | £0 | Normal bands from the first pound |
| D0 | £0 | Flat 40% on everything |
1257L questions, answered
Related tax codes
Emergency tax (W1/M1/X)
Usually a 1257L code with a W1, M1 or X suffix — each payday taxed in isolation until HMRC confirms your details.
Decode itBR
Basic Rate on everything: 20% from the first pound, no personal allowance — normal for second jobs and pensions.
Decode it0T
Zero allowance, but normal bands: 20%, then 40%, then 45% — from the very first pound you earn.
Decode itScottish tax codes (S)
An S at the front of your code means Scottish rates: six bands from 19% to 48% in 2025/26.
Decode itK codes
The code that works in reverse: instead of tax-free pay, a K code adds to your taxable income.
Decode itW1 / M1 / X
Suffixes, not codes: W1 (weekly), M1 (monthly) and X switch off the year-to-date calculation.
Decode itNot sure this is the right code for you?
Don’t take our word for it — HMRC holds the code they’ve actually issued for each of your jobs, and you can check it in two minutes.
Sources: tax codes — gov.uk · income tax rates · Scottish income tax