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 | NT W1 | 800L |
|---|---|---|
| Category | Emergency | Standard |
| Region | Any | rUK |
| Allowance | N/A | £8,000 |
| Emergency / non-cumulative | Yes | No |
| Approx. annual tax on £30k | £3,486 | £4,400 |
| In one sentence | No income tax deducted at source. Issued only with explicit HMRC authority. on a non-cumulative (W1) basis. | Reduced allowance of £8,000 - usually because of benefits-in-kind, an underpayment, or a P11D adjustment. |
Bottom line on £30k
On a £30,000 salary, NT W1 deducts roughly £3,486 in income tax per year vs £4,400 for 800L. That is a difference of £914 per year - NT W1 is less expensive.
Hand-picked side-by-sides that answer the most-searched UK tax-code questions.
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