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UK Tax Codes Explained Letter by Letter

UK Tax Codes Explained Letter by Letter

UK tax codes combine numbers (allowance / 10) and letters (category). L is standard, M and N are for Marriage Allowance, BR for basic rate only, K for negative allowance. Prefixes S and C indicate Scottish and Welsh taxpayer status. This guide decodes each.

7 Jul 2026 · 7 min read
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