An unprotected tenancy deposit is a compliance problem to investigate promptly, not a dispute to answer with threats or assumptions. Landlords and tenants should establish what happened to the money and which rules apply before deciding their next step.
This guide concerns the deposit-protection framework for relevant private tenancies in England. Other UK nations have their own arrangements, and unusual tenancy types require separate advice.
Check the protection record
Government guidance says a landlord or agent must place a qualifying tenancy deposit in an approved scheme within 30 days of receiving it. It identifies the Deposit Protection Service, MyDeposits and the Tenancy Deposit Scheme as the approved providers. A deposit paid by a parent or another third party is not automatically outside protection requirements.
Tenants who cannot find their paperwork can contact the schemes to check. Landlords should locate the payment date, scheme confirmation and correspondence rather than rely on a recollection that an agent dealt with everything. Keep copies of the tenancy agreement and bank transaction alongside those records.
What happens if protection was missed?
GOV.UK advises seeking legal advice before a court application. It says writing to the landlord can be quicker and cheaper than going straight to court. If the matter cannot be resolved, a tenant can apply to the county court.
Where a court finds a failure to protect, the official guidance describes orders for repayment or payment into a scheme, and possible compensation of up to three times the deposit. An individual outcome is for the court; it should not be presented as an automatic payment based solely on an allegation.
Keep the response factual
For landlords, our practical recommendation is to build a dated chronology and ask a qualified adviser what remedial action is appropriate. Do not promise that a late administrative step removes every consequence of an earlier failure. For tenants, set out the amount paid, when it was paid and the information you are requesting, retaining a copy of the message.
At the end of a tenancy, the government says an agreed return should be made within ten days of both parties agreeing the amount. A disagreement about deductions and a failure to protect are different issues: establish which problem needs resolving before choosing a route.
This replaces an archived individual dispute with general guidance. It does not decide liability in that case or provide personalised legal advice.
Sources checked 7 November 2026: https://www.gov.uk/tenancy-deposit-protection https://www.gov.uk/tenancy-deposit-protection/if-your-landlord-doesnt-protect-your-deposit