Tax code 1257L is the standard UK PAYE tax code for 2026/27. The digits 1257 × 10 = £12,570 tax-free Personal Allowance for the year. The L suffix means you get the standard PA with no special adjustments. Most UK employees with a single job and no benefits in kind will be on 1257L.
How 1257L breaks down
The code splits into two parts:
- 1257 — multiply by 10 = £12,570 tax-free allowance per year
- L — standard suffix meaning normal Personal Allowance applies
The £12,570 matches the UK Personal Allowance — the amount of income everyone can earn tax-free. It has been frozen at this level since 2021/22 (the “fiscal-drag freeze”) and the current Government has extended the freeze to April 2028.
On a 1257L code, PAYE applies tax as follows in 2026/27:
| Income band | Tax rate |
|---|---|
| £0 – £12,570 | 0% (Personal Allowance) |
| £12,571 – £50,270 | 20% basic rate |
| £50,271 – £125,140 | 40% higher rate |
| £125,141+ | 45% additional rate |
Worked example — £35,000 salary on 1257L
| Component | Annual | Monthly |
|---|---|---|
| Gross salary | £35,000 | £2,917 |
| Personal Allowance applied | £12,570 | £1,048 |
| Taxable income | £22,430 | £1,869 |
| Income tax (20%) | −£4,486 | −£374 |
| Employee National Insurance | −£1,794 | −£150 |
| Take-home | £28,720 | £2,393 |
Across 12 monthly pay periods, PAYE divides the £12,570 PA into £1,048/month of tax-free pay. Anything above that gets taxed at the appropriate rate.
When you should be on 1257L
You should normally be on 1257L if all the following are true:
- You have one employer or pension provider
- You receive no taxable benefits in kind (no company car, no private medical via employer)
- You haven’t received the Marriage Allowance transfer (which would change to 1383M)
- You haven’t given Marriage Allowance away (which would change to 1131N)
- You don’t owe HMRC any underpaid tax from previous years
- You live in England, Wales or Northern Ireland (Scottish residents see code prefixed with S, e.g. S1257L)
When you wouldn't be on 1257L
HMRC adjusts your code away from 1257L when:
- You receive Marriage Allowance from your spouse — code becomes 1383M (£13,830 tax-free).
- You've given Marriage Allowance to your spouse — code becomes 1131N (£11,310 tax-free).
- You have taxable benefits in kind — code reduces by the BIK cash equivalent. E.g. £1,260 of private medical = code becomes 1131L.
- You owe tax from a previous year — code reduces by the appropriate amount, often only £200-£500 worth.
- Your income exceeds £100,000 — code may show as T-suffix for “to keep under review”, especially if PA is tapered.
- You have a second job — second employer typically uses BR (basic rate) code on that income.
What to do if your code is something other than 1257L
Decode your specific code
The tax code decoder explains your code letter-by-letter and flags any common issues (emergency, second job, BIK adjustments).
Open the tax code decoder →Other UK tax codes explained
- What is a UK tax code? — the overview
- Why is my tax code 1257L? (the standard code)
- Why is my tax code BR? (basic rate)
- Why is my tax code 0T?
- Why is my tax code D0? (40% flat)
- Why is my tax code D1? (45% flat)
- K-prefix tax codes — negative allowance
- W1, M1 and X — emergency tax codes
- Why is my tax code NT? (no tax)
- T-suffix tax codes
- M and N — Marriage Allowance codes
- Tax code changed suddenly — what to do
Sources and methodology
Tax code structure and letters from gov.uk/tax-codes. Personal Allowance from gov.uk/income-tax-rates. Scottish income tax bands from gov.uk/scottish-income-tax. HMRC Personal Tax Account at gov.uk/personal-tax-account.
UK Tax Drag is not authorised by the Financial Conduct Authority and does not provide regulated financial advice — see the content disclaimer for the full position. The methodology page documents how every calculator is built and reviewed.
How UK Tax Drag holds itself to account
Every page is reviewed against the editorial standards, written from primary sources, sourced openly, and corrected publicly. No affiliate revenue. No sponsored content. No paid placements.