Pick any two UK PAYE tax codes and we will line up the allowance, emergency status, region and approximate annual tax on a £30,000 salary so you can see exactly how they differ.
Last updated 2026-04-12
| Attribute | 1257N | D0 W1 |
|---|---|---|
| Category | Marriage | Emergency |
| Region | rUK | rUK |
| Allowance | £11,310 | £0 |
| Emergency / non-cumulative | No | Yes |
| Approx. annual tax on £30k | £3,738 | £6,000 |
| In one sentence | Marriage Allowance transferor - allowance reduced by £1,260. | All income from this source taxed at 40%, no personal allowance. on a non-cumulative (W1) basis. |
Bottom line on £30k
On a £30,000 salary, 1257N deducts roughly £3,738 in income tax per year vs £6,000 for D0 W1. That is a difference of £2,262 per year - 1257N is less expensive.
Hand-picked side-by-sides that answer the most-searched UK tax-code questions.
Upload your payslip and we will tell you whether the code being applied is correct for the pay you actually received.
Check My Payslip