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What to do if…
your pay statement shows an unexpected deduction you do not recognise

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy UK guide

Short answer

Keep the payslip and ask payroll, in writing, what the deduction is, how it was calculated, and what allows it. Do not sign a repayment plan or authorisation form until you have that explanation in writing.

Do not do these things

  • Do not assume it is “just tax” and ignore it.
  • Do not sign anything agreeing to a deduction or repayment plan before you understand the amount, reason, and dates.
  • Do not send personal documents through unofficial channels or to someone you cannot identify as payroll or HR.
  • Do not rely only on a verbal explanation; ask for a written breakdown.
  • Do not try to “even it up” by reducing your hours, refusing duties, or taking money or goods.

What to do now

  1. Save the evidence. Keep the payslip, note the pay period and pay date, and save screenshots or photos of the deduction line. If you have previous payslips, compare the last 2 or 3 and mark what changed.
  2. Check whether the payslip explains the deduction. Your payslip should show pay before and after deductions, and deductions that can change each time you are paid. If a fixed deduction is not explained on the payslip, ask payroll for the separate written statement or explanation.
  3. Ask payroll for a written breakdown today. Send a short message: “Please confirm what this deduction is for, the legal, contractual, or written-authorisation basis for it, how it was calculated, the period it relates to, and whether it will happen again next pay.”
  4. Check the likely category before you escalate.
    • PAYE tax or National Insurance: Check the tax code and figures on your payslip against HMRC’s payslip-tax checker or your HMRC online account. Ask payroll what tax code they used and when they received it.
    • Workplace pension: Check whether the amount matches your usual pension contribution and whether your pay, scheme rules, or enrolment status changed.
    • Student loan or postgraduate loan: Check whether the payslip has a student loan or postgraduate loan line. Ask payroll what plan, notice, or payroll record caused the deduction.
    • Attachment of earnings or similar official order: Ask payroll for the order type, reference, issuing body, and any paperwork they can share with you safely.
    • Overpayment recovery: Ask for the original overpayment date, amount, remaining balance, calculation, and proposed recovery schedule. If the deduction would cause hardship, ask in writing for a slower repayment plan.
    • Till shortage or stock shortfall: Ask whether your contract allows this deduction, when you were told about the shortfall, and whether the deduction is within the usual retail limits.
  5. If the answer is unclear, ask for a correction or pause. Write that you do not recognise or agree with further deductions until payroll has explained the basis and calculation. Ask whether an extra payment before the next payday or a correction in the next pay run is possible if they made an error.
  6. Get support if it is not resolved quickly. If you are in a union, send your rep the payslip and payroll’s written answer. You can also contact Acas for guidance on deductions from wages.
  7. Watch the time limit if money has been wrongly deducted. Employment tribunal time limits can be strict. For many unlawful deduction from wages claims, the limit is generally 3 months minus 1 day from the deduction, or from the most recent deduction in a linked series. If a deadline may be close, contact Acas about early conciliation before it runs out.

What can wait

  • You do not need to decide today whether to make a tribunal claim, unless a deadline may already be close; first identify the deduction and get it documented.
  • You do not need to confront your manager in person; payroll or HR can usually clarify the pay record faster.
  • You do not need to audit every payslip you have ever had today; start with the current pay period and the first payslip where the deduction appeared.

Important reassurance

Unexpected deductions are often caused by payroll records, tax-code changes, pension or student-loan settings, official orders, or overpayment recovery being applied without enough explanation. Asking for a written breakdown is a normal, reasonable step.

Scope note

These are first steps to identify the deduction, reduce the chance it repeats, and create a clear record. Later decisions, such as a formal grievance, tribunal claim, debt advice, or specialist employment advice, may need specialist help.

Important note

This is general information, not legal, financial, tax, employment, or professional advice. Your employment status, contract, pay records, and the type of deduction matter, and some deductions are required by law or official order.

Additional Resources

Closely connected guides that may be useful during the same situation or its immediate aftermath.

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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