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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

Illustration: £30,000 gross / year
AttributeK1000K1000
CategoryKCodeKCode
RegionrUKrUK
Allowance£-10,000£-10,000
Emergency / non-cumulativeNoNo
Approx. annual tax on £30k£8,460£8,460
In one sentenceAdds £10,000 to your taxable pay because untaxed income exceeds your allowance.Adds £10,000 to your taxable pay because untaxed income exceeds your allowance.

Bottom line on £30k

On a £30,000 salary, K1000 deducts roughly £8,460 in income tax per year vs £8,460 for K1000. The two codes produce the same annual tax at this salary.

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