One field on a payslip is worth checking every April
The tax code
A number and a letter. The number is roughly a tenth of your tax-free allowance. If it starts with BR or D0, all your income is being taxed.
Year to date
Cumulative figures for the tax year. Useful because a single month tells you very little and an error shows up here first.
Deductions
Everything other than tax and national insurance should be something you agreed to. Anything unfamiliar is worth one question.
