What Does the C1257L Tax Code Mean?
Welsh Standard Personal Allowance
description Core Meaning & Overview
The standard tax code for taxpayers whose primary residence is in Wales.
account_balance Legal & Payroll Mechanics (2026/27)
The C prefix denotes Welsh taxpayer status under the Wales Act. While the Welsh Government has devolved power to set Welsh Rates of Income Tax (WRIT), rates currently maintain full parity with England and Northern Ireland (20% Basic, 40% Higher, 45% Additional).
warning Is Your C1257L Tax Code Correct?
If your main residence is in Wales, ensure your employer displays C1257L so your tax contributions are correctly allocated to the Welsh Government budget.
help Frequently Asked Questions About C1257L
Do Welsh taxpayers pay more tax than English taxpayers?
No. The Welsh Government currently sets Welsh Rates of Income Tax to match the rest of the UK, meaning take-home pay is identical to England and Northern Ireland.
Can I choose between a C code and an English code?
No. Tax residency is determined legally by where your main residential home is located throughout the tax year.