Understanding your payslip

Your payslip is a legal document that every worker is entitled to, yet most people glance at the final figure and file it away. Learning to read it properly is worth doing, because it is how you catch mistakes, understand where your money goes, and make sure you are being paid and taxed correctly. Here is a plain-English guide to the main lines.

Gross pay versus net pay

Two figures matter most:

• Gross pay is what you earn before anything is taken off. This is the figure that matches your agreed rate or salary.
• Net pay is what actually lands in your bank account after all deductions. This is your take-home.

The gap between the two is the tax, National Insurance and any other deductions, which we will walk through.

Your tax code and Income Tax

Your tax code tells your employer how much of your income is tax-free. The common code for someone with one job and the standard personal allowance is 1257L, meaning you can earn £12,570 a year before paying Income Tax. If your code looks unusual, for example BR (all taxed at basic rate) or one with a K, it is worth checking with HMRC, as a wrong code is one of the most common reasons people overpay or underpay tax. Income Tax is then deducted through PAYE across the year.

National Insurance

National Insurance contributions come out of your pay once you earn above a threshold, and they count towards your State Pension and certain benefits. It appears as a separate line from Income Tax. Like tax, it is calculated automatically, but it is worth understanding it is a distinct deduction, not part of your Income Tax.

Pension, student loan and other deductions

• Pension: if you are auto-enrolled, your contribution is deducted here, and your employer adds their contribution on top, which is effectively free money towards your retirement.
• Student loan: if you earn above the repayment threshold for your plan, repayments are collected automatically through payroll.
• Other: things like season ticket loans, union subscriptions or salary sacrifice schemes may appear.

Every deduction must be shown and explained. If you see one you do not recognise, ask your employer to account for it.

The other details to check

A payslip must also show your pay period and payment date, and usually your tax and NI figures for the year so far (year to date). If you are paid hourly, check the number of hours and the rate carefully against the shifts you actually worked, as this is where errors most often creep in. Your National Insurance number and payroll or employee number are typically shown too.

Spotting when something is wrong

• Your hours or rate look off. Cross-check against your own record of shifts worked.
• Your take-home suddenly changes with no reason, which can signal a tax code change worth querying.
• An unfamiliar deduction appears. Ask for an explanation, as deductions must be lawful and clear.
• No holiday pay shows when you expected it, particularly for agency or part-time work.

Keep your payslips, as you will need them for things like renting, mortgages, benefit claims and proving your income. Take five minutes to read the next one line by line. Once you know what each figure means, you are in control of your pay and far more likely to catch a costly mistake early.