Letter Before Action for an Unreturned Deposit

By ClaimKit UK Editorial Team · Updated February 2026

If your deposit has not been returned, you can request repayment before starting a small claims case. A clear pre-action letter sets out what happened, the amount owed, and a fair deadline to respond.

When to use this letter

Send a pre-action letter when informal follow-ups have failed and you need to put your request in a formal, structured way. It shows you are following the pre-action conduct expected by the court.

This is useful for rental deposits, event retainers, or other deposits where the other party has not provided a valid reason for keeping the money.

What to include

State the agreement date, the deposit amount, and the exact date the deposit should have been returned. Explain any terms that require a refund, and note any attempts you made to resolve the issue.

Be explicit about the outcome you want: repayment of the deposit, any agreed deductions, and a clear deadline (usually 14 days) to pay.

Evidence to attach

Attach documents that show the deposit existed and the conditions for its return. Keep copies of any communications, inspection notes, or cancellation confirmations.

What happens next

If they pay, you can close the matter. If they do not respond, you can proceed to small claims with proof that you followed the pre-action process.

Evidence checklist

Tenancy or booking agreement showing the deposit amount
Evidence of payment (bank statement or receipt)
Any written terms about deposit return or deductions
Photos or inspection notes (if relevant)
Emails or messages asking for the refund

Common mistakes to avoid

Not stating the exact amount you are claiming
Missing a clear deadline for payment
Skipping evidence that shows the deposit terms

FAQs

How long should I give them to respond?

A 14 day deadline is common for small claims pre-action letters, unless a different time period is required by your contract.

Can I claim the full deposit if there were damages?

Only claim what you believe is owed. If you accept deductions, state the remaining amount and why.

Do I need a solicitor to send this?

No. You can send a pre-action letter yourself as long as it is clear and factual.

Related guides

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