Question 1

What does tax code 1257L mean?

Accepted Answer

1257L is the standard code for many employees. It means you have the standard Personal Allowance for this source of income.

Question 2

What are BR, D0 and D1 tax codes?

Accepted Answer

These are flat-rate style codes often used for second jobs or pensions: BR taxes all income at 20%, D0 at 40%, and D1 at 45%.

Question 3

What does W1 or M1 mean on my tax code?

Accepted Answer

W1/M1 (or X) means non-cumulative tax treatment. Each payslip is taxed in isolation, which can create temporary over- or under-deductions.

Question 4

What is a K tax code?

Accepted Answer

K codes add an amount to taxable pay, usually because taxable benefits or adjustments exceed your allowance.

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