How to Claim for Overtime Pay or Miscalculated Wages

Employees in England and Wales are entitled to be paid accurately for all work they perform under their contract. This includes basic wages, overtime where it is due, bonuses, holiday pay linked to hours worked, and other contractual payments. When an employer fails to pay overtime or miscalculates wages, the employee may have legal avenues to recover what is owed. This article explains how wage rights operate, what constitutes underpayment or unlawful deductions, how informal and formal resolution works, and when to pursue claims to an Employment Tribunal. It also addresses time limits, evidence, tribunal procedure and practical considerations for both employees and employers.

Understanding Wage Rights and Overtime Pay

Contractual Pay and Overtime

Your employment contract sets out how much you earn and when you are paid. If your contract provides for overtime at a specific rate, you must be paid accordingly for hours worked beyond regular hours. Absent a contractual term, unpaid overtime may still be actionable if it breaches implied contractual terms or results in unlawful deductions from wages. Employers and workers should always check the relevant contract and agreed terms.

National Minimum and Living Wage

Even if your contract provides for unpaid overtime, your average hourly pay over the pay reference period must not fall below the National Minimum Wage (NMW) or National Living Wage. If unpaid overtime causes wages to dip below the statutory minimum, the employer may be in breach of minimum wage legislation and liable for underpayment.

Unlawful Deductions from Wages

The Employment Rights Act 1996 protects employees from unlawful deductions from wages. An unlawful deduction occurs where an employer pays less than the amount due under contract or law, unless the deduction is required by law (for example tax or National Insurance), authorised by the contract, or agreed in writing. This can include failure to pay overtime due, incorrect wage calculations, or withholding holiday pay that includes overtime elements.

Step‑by‑Step: How to Address Underpayment or Miscalculated Wages

1. Check Your Pay and Contract

Start by reviewing your:

• Payslips to see hours paid and overtime rates.
• Employment contract and any written agreements on overtime.
• Timesheets or time records showing hours worked.

This helps you calculate how much you believe you are owed, after tax and lawful deductions.

2. Raise the Issue with Your Employer

Often, payroll errors are mistakes. Begin by:

• Talking informally to your manager, HR or payroll team.
• Putting the discrepancy in writing, detailing hours worked, pay received and the shortfall.
• Requesting a response within a reasonable timeframe (for example by the next pay date).

Providing clear calculations and evidence (payslips, hours worked records) increases the chance of a swift resolution.

3. Use Internal Grievance Procedures

If informal discussions do not resolve the issue, raise a formal grievance under your employer's policy. A grievance creates a documented record of the complaint and obliges the employer to investigate and respond. Formal grievance steps can strengthen your position if you later pursue external legal remedies.

Taking Legal Action: Tribunal Claims

Unlawful Deduction from Wages Claim

If an employer continues to withhold pay without lawful basis, you can make a claim for unlawful deduction from wages to an Employment Tribunal. This type of claim covers:

• Overtime not paid where contractually due.
• Wages miscalculated or not paid for hours worked.
• Other contractual payments owed (for example bonuses or commission).

To succeed, you must show that a deduction has occurred and that no statutory or contractual basis justifies it.

Time Limits for Claims

Tribunal claims for unpaid wages and unlawful deductions are subject to strict time limits. You generally have three months less one day from the date the pay was due (or the last underpayment in a series of deductions) to start your claim.

Acas Early Conciliation

Before presenting a claim to an Employment Tribunal, you must notify Acas and engage in Early Conciliation. This free process encourages settlement without litigation. Once Acas issues your Early Conciliation certificate, you can include the certificate number on your tribunal claim form (ET1).

What Happens at the Tribunal

If your claim proceeds, a tribunal will assess whether the employer made an unlawful deduction. If successful, the tribunal can order the employer to:

• Pay the amount owed, including overtime and other unpaid wages.
• Potentially award interest on sums owed.
• Make additional orders if appropriate.

If a tribunal award is not paid, you can pursue enforcement through the courts or request the employer be fined and named by the government.

Practical Considerations and Risks

Evidence and Record‑Keeping

Maintain accurate records of:

• Hours worked and overtime.
• Payslips and bank statements.
• Written correspondence with your employer.

This evidence is central to proving your claim.

Do Contracts Authorise Deduction?

If your contract explicitly allows certain deductions or groups your salary as inclusive of overtime, this can complicate a claim. A contractual term that effectively captures overtime rights must be carefully reviewed, and expert advice may be needed.

Employer Insolvency

If your employer becomes insolvent, unpaid wages (including overtime) might still be claimed up to a statutory cap via the National Insurance Fund or related statutory processes. Rights in insolvency can differ and require specialised procedures.

Common Questions

Can unpaid overtime be lawful?
Yes. If your contract states your salary includes reasonable additional hours and the total pay still meets minimum wage obligations, unpaid overtime may be lawful. However, this must comply with employment rights and working time regulations.

What if my employer claims overpayment?
Employers may seek recovery of overpayments, but they still must comply with legal protections on deductions. Many disputes arise where employers assert overpayment to justify withholding wages; these situations often require careful negotiation or legal assessment.

Can I claim after leaving a job?
Yes. You can claim unpaid wages, including overtime owed, even after employment ends, provided you bring your tribunal claim within the time limit from the date of last unpaid wages.

Key Takeaways

If an employer has failed to pay overtime or has miscalculated wages, employees in England and Wales have structured rights under contract and statute to challenge underpayment. Start by reviewing contracts and payroll records, raise the issue informally and through formal grievance procedures, and document all evidence. If these steps do not resolve the dispute, you can pursue an unlawful deduction from wages claim to an Employment Tribunal, after completing Acas Early Conciliation. Strict time limits apply, and careful preparation of evidence is essential. Successful claims can result in payment of owed wages and potentially interest, helping protect your contractual and statutory pay rights.