2026/27 tax codes
Tax code C1257L explained
- C means you pay Welsh income tax rates (currently the same as England).
- 1257 means you can earn £12,570 a year before paying income tax.
- L means you get the standard tax-free Personal Allowance.
How much tax C1257L takes
| Salary | Tax a year on C1257L | Tax a year on C1257L | Difference a month |
|---|---|---|---|
| £20,000 | £1,484 | £1,484 | Same |
| £30,000 | £3,484 | £3,484 | Same |
| £45,000 | £6,484 | £6,484 | Same |
| £60,000 | £11,428 | £11,428 | Same |
| £90,000 | £23,428 | £23,428 | Same |
Income tax through PAYE only, with no pension or benefits. Try your own salary with C1257L.
Check another code
Common questions
What does tax code C1257L mean?
C means you pay Welsh income tax rates (currently the same as England). 1257 means you can earn £12,570 a year before paying income tax. L means you get the standard tax-free Personal Allowance.
How much tax does C1257L take on £30,000?
On a £30,000 salary, code C1257L takes £3,484 of income tax a year through PAYE in 2026/27, compared with £3,484 on C1257L.
Is C1257L the right tax code for me?
Check your code in the HMRC app or your Personal Tax Account. If it does not match your situation, tell HMRC: overpaid tax is refunded and underpaid tax is usually collected through next year's code.
Official sources
Every rate and threshold on this page is checked against these official pages. How we calculate
- Tax codes (GOV.UK)
- Emergency tax codes (GOV.UK)
- PAYE Manual (HMRC)
- Check your Income Tax for the current year (HMRC)
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