Unlawful Deductions Complaint Letter Template & Generator

If you need to challenge deductions from your pay that you did not agree to in writing, a written letter is the recommended first step — it creates a clear record and shows you're pursuing the matter formally. Below is what a strong unlawful deductions complaint should include, plus a free tool to generate yours.

What this letter needs to cover

• Identify the deductions being made
• State these were not authorised by a written term of your contract or agreed in writing before the deduction, as the Employment Rights Act 1996 requires
• State the deductions are unlawful
• Request immediate cessation and repayment of unlawfully deducted sums
• Warn of tribunal claim if not resolved

When a pay deduction is genuinely unlawful

Under the Employment Rights Act 1996, deductions from your pay generally require either your written agreement in advance, a clear provision in your contract, or a specific legal requirement (like tax or a court order) — deductions your employer simply decides to make, without either of these, are unlawful regardless of the reason given.

What to include before you send it

• The specific deduction, amount, and date it was made
• Confirmation that you didn't agree to this in writing, and it's not covered by your contract
• A request for the full amount to be repaid
• A reasonable deadline before pursuing a formal claim

Common unlawful deductions worth knowing about

These often include deductions for till shortages, breakages, or uniform costs where there's no valid written agreement, or deductions that take pay below National Minimum Wage even where some agreement exists. Certain deductions (like for genuine overpayment correction) are treated differently, so it's worth understanding which category yours falls into.

Frequently Asked Questions

What if I signed something agreeing to deductions when I started?
A blanket agreement can sometimes be valid, but it needs to be sufficiently specific — a vague general clause may not cover every possible deduction an employer later decides to make.

What's my next step if my employer refuses to repay this?
You can bring an unlawful deduction from wages claim through the Employment Tribunal, generally within 3 months minus 1 day of the deduction (six months less one day for acts on or after 1 October 2026) (for a series of deductions the last one decides).

See our full letter template & generator library for related letters, or use our free checkers for guidance specific to your situation.