Compare UK Tax Codes
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 | 0T | 1257L W1 |
|---|---|---|
| Category | ZeroAllowance | Emergency |
| Region | rUK | rUK |
| Allowance | £0 | £12,570 |
| Emergency / non-cumulative | Yes | Yes |
| Approx. annual tax on £30k | £6,000 | £3,486 |
| In one sentence | No personal allowance. All income taxed via the normal 20% / 40% / 45% bands. | Standard personal allowance of £12,570 for England, Wales and NI. on a non-cumulative (W1) basis. |
Bottom line on £30k
On a £30,000 salary, 0T deducts roughly £6,000 in income tax per year vs £3,486 for 1257L W1. That is a difference of £2,514 per year — 0T is more expensive.
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