An unexpected reduction in your pay can leave you wondering whether payroll has made a mistake or your employer has taken money it was never entitled to keep. Unlawful deductions from wages in the UK can involve obvious charges on a payslip, but they can also involve missing overtime, commission or holiday pay. Knowing what should have been paid is the starting point for challenging the shortfall.
When is a deduction from wages unlawful?
In England, Wales and Scotland, the Employment Rights Act 1996 generally prevents employers from deducting money from a worker’s wages without a lawful basis. Paying less than the wages properly payable can count as a deduction even when there is no separate deduction line on the payslip.
This protection is not restricted to permanent employees. Many people with worker status are covered, including some casual workers. Wages can include salary, contractual overtime, commission, bonuses and holiday pay. The central question is whether the sum was actually due under an agreement or statutory entitlement.
Which wage deductions are allowed?
Employers can deduct Income Tax, National Insurance and other amounts required by law. A deduction may also be lawful where a relevant employment contract term authorised it and was provided in writing beforehand, or where the worker gave written agreement before the deduction. Court-ordered deductions and certain deductions relating to industrial action are other examples.
Employers can usually reclaim genuine accidental overpayments of wages or expenses without fresh consent. However, asking for an explanation and discussing affordable repayments is reasonable, especially if an immediate recovery would create hardship. An employer cannot simply invent a charge because it considers a deduction fair.
Warning signs on your payslip
Charges for damage, mistakes or shortages
Money taken for broken equipment, stock losses or a till shortage should be checked against your contract and the legal rules. Retail workers have special protections: deductions for till or stock shortages are generally limited to 10% of gross pay on each payday, except from the final wages when employment ends.
Unpaid overtime, commission and holiday pay
Missing pay may be an unlawful deduction even if payroll describes it as an administrative error. Compare the payslip with authorised overtime hours, commission arrangements and holiday records. Not every expected bonus is legally owed, so check the conditions for earning it before calculating the difference.
Example: calculating missing overtime
Imagine you were authorised to work eight overtime hours at £18 an hour, but your payslip records only five. The apparent shortfall is £54 before any applicable tax adjustment. Keep the rota, timesheet and messages approving the overtime, then email payroll with the three missing hours and the calculation. A specific, documented query is easier to investigate than a general complaint that your wages seem wrong.
Could the deduction also breach minimum wage law?
Even a contractually permitted deduction can create a separate National Minimum Wage problem. Compulsory uniform costs and some expenses connected with doing the job can reduce pay for minimum wage purposes. Different rules apply to genuine loans, wage advances and overpayments. Compare the relevant working hours and allowable pay adjustments, rather than looking only at the amount deposited in your bank. Our guide to understanding your payslip offers further context.
How to challenge deductions and recover wages
Gather evidence and work out what is owed
Save your contract, payslips, bank statements, rotas, timesheets and messages confirming pay arrangements. For each disputed payday, record the amount due, the amount received and the difference. If deductions have happened repeatedly, make a dated list rather than combining everything into one unexplained total.
Ask for a correction in writing
Contact payroll or your manager, identify the disputed pay period and request the rule or contract clause relied upon. Ask for a corrected payslip and a date for payment if an error is confirmed. After a telephone discussion, send a short email confirming what was said. This creates a useful record if the problem continues.
Use the formal grievance process if necessary
If informal contact fails, raise a grievance explaining the facts and the outcome you want. Our guide to raising a grievance at work can help you organise the complaint. You can also seek advice from your trade union or Acas. An internal grievance does not automatically extend the legal deadline for a tribunal claim.
Can you take an employer to an employment tribunal?
Workers in Great Britain may be able to bring an unlawful deductions claim to an employment tribunal. Normally you must notify Acas first and consider early conciliation. The conciliation process can affect the time limit, so record the dates carefully and do not assume discussions with your employer will protect your right to claim.
The tribunal deadline changed on 1 October 2026. For a deduction arising on or after that date in Great Britain, the usual limit is six months minus one day. Where the relevant deduction occurred before 1 October 2026, the earlier limit of three months minus one day generally applies. A qualifying series of deductions may be measured from the last deduction, but the facts matter.
For a qualifying series of unlawful wage deductions in Great Britain, recovery through the tribunal route is generally subject to a two-year look-back limit. Other routes, including certain breach of contract claims, may have different requirements and deadlines. Take advice promptly if several payments are involved; our employment tribunal claims guide explains the process.
Different rules in Northern Ireland
Northern Ireland operates under separate employment legislation. Its ordinary unauthorised wage deduction claims generally have a three-month-minus-one-day deadline, with early conciliation through the Labour Relations Agency rather than Acas. The October 2026 tribunal time-limit extension for most Great Britain claims does not automatically apply to those Northern Ireland wage disputes.
Frequently asked questions
Can my employer deduct money without asking me?
Sometimes, such as for tax or a genuine overpayment. Other wage deductions generally require an appropriate legal or previously agreed contractual basis. Ask for the reason and check that the deduction appears clearly on your payslip.
Can an employer recover wages paid by mistake?
Generally, yes. Accidental overpayments are a recognised exception to ordinary authorisation requirements. Request a breakdown of the alleged overpayment and discuss instalments if repaying everything at once would cause hardship.
Can I claim missing pay after leaving my job?
Yes. Departure does not automatically remove the right to challenge unpaid wages. However, the deadline depends on the disputed payday or qualifying series of deductions, not when you decide to raise the issue.
Do I need two years of service to make a wage claim?
No. Protection against unlawful deductions does not generally require two years’ service. Your worker status and whether the money was properly payable are more important than how long you have held the job.
Act before a pay problem becomes a missed deadline
Start with the documents and a clear calculation. Give your employer an opportunity to explain or correct the shortfall, but do not let an unresolved payroll dispute drift beyond the applicable deadline. Timely evidence, written communication and appropriate advice can make the difference when trying to recover wages you are owed.