United Kingdom guides

UK pay and tax guides

Straightforward explanations to help you understand UK payslips, tax, pensions and work decisions.

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What does 1257L M1 mean?

Understand a common tax-code combination.

Why take-home pay can go down

Check common reasons a payslip changes.

Cumulative vs non-cumulative PAYE

Learn why PAYE treatment can affect a payment.

Student-loan deductions

Understand when repayments can appear on pay.

How UK bonus tax works

Plan for deductions on an additional payment.

Mortgage overpayments

See how regular overpayments can reduce interest.