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 | 1150L | 1257Y |
|---|---|---|
| Category | Standard | Standard |
| Region | rUK | rUK |
| Allowance | £11,500 | £12,570 |
| Emergency / non-cumulative | No | No |
| Approx. annual tax on £30k | £3,700 | £3,486 |
| In one sentence | Reduced allowance of £11,500 - usually because of benefits-in-kind, an underpayment, or a P11D adjustment. | You were born before 6 April 1938 - historical age-related allowance marker. |
Bottom line on £30k
On a £30,000 salary, 1150L deducts roughly £3,700 in income tax per year vs £3,486 for 1257Y. That is a difference of £214 per year - 1150L is more expensive.
Hand-picked side-by-sides that answer the most-searched UK tax-code questions.
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