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 | CBR W1 | 1383L |
|---|---|---|
| Category | Emergency | Marriage |
| Region | Wales | rUK |
| Allowance | £0 | £13,830 |
| Emergency / non-cumulative | Yes | No |
| Approx. annual tax on £30k | £6,000 | £3,234 |
| In one sentence | Welsh taxpayer version of BR. Currently identical in cash terms to the rUK code. on a non-cumulative (W1) basis. | Increased allowance of £13,830 (typically Marriage Allowance recipient). |
Bottom line on £30k
On a £30,000 salary, CBR W1 deducts roughly £6,000 in income tax per year vs £3,234 for 1383L. That is a difference of £2,766 per year - CBR W1 is more expensive.
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