What happens if a landlord does not protect a deposit?

The full consequences of failing to protect a deposit or serve the prescribed information — penalties, timing and how to limit the damage.

7 min read · Updated 2 August 2026

Overview

Deposit protection is the single most litigated duty in the private rented sector, because the breach is easy for a tenant to prove and the penalty is generous. The duty has two limbs — protecting the money in an authorised scheme, and serving the prescribed information — and failing either produces the same exposure.

Why it matters

A claim can be brought during the tenancy or within six years of it ending, and each renewal can generate a separate award. For a landlord holding a £1,200 deposit across three renewals, the theoretical exposure runs to five figures before costs.

Legal requirements

Protect the deposit in an authorised scheme within 30 days of receipt (30 working days in Scotland, 28 days in Northern Ireland).
Serve the prescribed information on the tenant and any relevant person in the same window.
Repay the deposit or protect it before relying on a no-fault possession route where one still exists.

Common mistakes

Relying on an agent without obtaining the scheme certificate.
Protecting the deposit but never serving the prescribed information — the most common single failure.
Failing to re-serve the prescribed information after a renewal where the scheme requires it.
Taking a deposit as rent in advance to avoid the rules, which courts treat as a deposit anyway.

Practical guidance

If you discover a breach, protect the deposit or return it immediately and document the date.
Late compliance does not remove liability, but it materially reduces the multiplier a court applies.
Where you cannot evidence service of the prescribed information, serving it again now costs nothing and helps.
Store the certificate, the prescribed information and the proof of service together for each tenancy.

Can a tenant claim after moving out?

Yes. The claim is brought in the county court and the limitation period runs for six years from the breach, so former tenants regularly claim long after the keys are returned.

Does returning the deposit fix it?

Returning the deposit removes the ongoing breach and is strong mitigation, but it does not extinguish a claim for the penalty. It does, however, usually reduce the award towards the lower end of the one-to-three band.