Deposit Dispute Adjudication UK: How It Works

The deposit dispute adjudication process in the UK is paper-based and evidence-only. There are no hearings, no phone calls, and no oral testimony. An independent adjudicator reads what you submit, reads what your landlord submits, and decides how the deposit should be split.

All three schemes use this same structure. The adjudicator is not a judge, but their decision is binding. Once it lands, that's the outcome. Neither party can go back and renegotiate.

The process runs like this:

1. Your tenancy ends and you ask for your deposit back in writing.
2. Your landlord either agrees to return it, proposes deductions, or goes silent.
3. If you can't reach agreement after at least 10 days, you raise a formal dispute through your scheme's online portal.
4. Both parties consent to use the Alternative Dispute Resolution (ADR) service.
5. Each side uploads their evidence bundle, typically within 14 days of the dispute going live.
6. The adjudicator reviews everything and issues a decision.

For custodial schemes like the DPS's free-to-use custodial option, that decision typically arrives within 15 to 21 days of evidence submission. Insurance-backed schemes, where the landlord holds the deposit themselves, take longer, averaging 55 to 59 days from dispute to decision. Factor that in if you're waiting on cash you need.

You can read a detailed breakdown of what to include in your evidence bundle in our guide to Rent Repayment Order Evidence UK: What to Include, which covers overlapping documentation principles.

Cleaning is the single biggest driver of deposit disputes. It appears in 54% of cases in England and Wales. Property damage comes second at 49%, followed by redecoration at 31%, gardening at 14%, and rent arrears at 10%.

Those numbers matter because they tell you where landlords look and where you need to be airtight. A vague claim that you 'left it clean' won't beat a landlord who submits a professional cleaning invoice and a check-out report noting grease on the hob.

The adjudicator's job is not to decide who seems more credible. They decide based on documents. If the evidence is ambiguous, the benefit of the doubt typically goes to the tenant, because the burden of proof sits with the landlord. They are the ones claiming a deduction. They need to prove it.

One important limit: the adjudicator can only award up to the total deposit amount. If your landlord is claiming more than you paid, for example £1,200 in 'repairs' on a £950 deposit, the excess has to go through the small claims court separately. The ADR service only divides what's in the pot.

For cleaning charges specifically, our guide on Can Your Landlord Charge You for Cleaning explains when those deductions are lawful and when they're not.

The check-in inventory compared against the check-out report is the spine of every adjudication. If those two documents disagree, the adjudicator has something to work with. If neither document exists, or if only the landlord has one, the tenant's position is much stronger by default.

Beyond the inventory, build your evidence bundle around four categories:

Photographs and video. Dated media taken on move-in and move-out day. A timestamp matters. An undated photo of a clean cooker proves nothing by itself.

Receipts and invoices. If you paid for professional cleaning, keep the receipt. If you bought supplies and cleaned yourself, that's harder to document but still worth noting in writing.

Written correspondence. Every text or email where the condition of the property was mentioned, including any message your landlord sent praising the state of the flat, or any where you reported a pre-existing issue.

The tenancy agreement itself. Some agreements contain clauses requiring professional cleaning at the end of tenancy. Under the Tenant Fees Act 2019, those clauses are unenforceable unless you actually caused damage that required professional cleaning. Your scheme adjudicator knows this.

Do not rely on the landlord submitting balanced evidence. Submit everything yourself. Adjudicators have noted that one of the most common tenant mistakes is assuming the landlord's evidence will be fair. It won't be. That's why they're disputing.

You have 14 days to upload your evidence once the dispute is live. Missing that window can result in the adjudicator deciding on the landlord's evidence alone.

The mechanics differ slightly between schemes, but the sequence is the same across all three.

First, confirm which scheme holds your deposit. Your landlord was required to give you this information within 30 days of receiving your deposit, along with a document called the Prescribed Information. If you don't have that paperwork, check your emails from when you moved in, or use each scheme's online checker. If your deposit was never protected at all, that's a separate and more serious issue covered in our guide to Deposit Protection Violations: Claim Compensation.

Once you know your scheme, log into their portal and locate the dispute or ADR section. You'll need your deposit protection reference number. Both parties must agree to use the ADR service, but if your landlord refuses, you can apply to court instead. Refusal to use ADR is not a dead end.

The dispute must generally be raised within three months of the tenancy ending. Each scheme sets its own exact rules on this, so don't let time drift. If you're past the three-month mark, you may still be able to pursue the deposit through the county court, but you lose the free ADR route.

For a step-by-step walkthrough of how each scheme handles disputes, see our guide on How to Raise a Deposit Dispute: mydeposits, DPS or TDS.

The adjudicator's decision arrives in writing. It will state how the deposit is to be divided, with brief reasoning for each deduction accepted or rejected. You do not get a lengthy judgment. You get a clear number.

If the adjudicator awards you more than the landlord offered, the scheme pays out your share directly. If you were in a custodial scheme, this is straightforward because the money was held by the scheme throughout. If you were in an insurance-backed scheme, the landlord was holding the money and is required to pay up. Non-compliance is rare but possible, and at that point you'd need to enforce through the small claims court.

If the decision goes against you and you believe there was a procedural error, you can ask the scheme to review whether the process was followed correctly. You cannot appeal purely because you disagree with the outcome. The adjudicator's judgment on the facts is final within the ADR process.

If the deposit dispute involves deductions that exceed your deposit amount, or if you believe your landlord is acting in bad faith beyond the deductions themselves, withholding your deposit as a pressure tactic, for example, read our guide on Landlord Harassment Legal Remedies UK for the broader picture.

The adjudication process is free and accessible, but building a strong evidence bundle from scratch is harder than it sounds, especially when you're not sure which documents matter or how to frame your argument.

Remedy Legal offers a free instant assessment of your legal position. Share the details of your deposit situation and Remedy will tell you where you stand, what you're likely owed, and whether the deposit dispute adjudication process is the right route or whether a stronger legal mechanism applies. No credit card required at that stage.

If you've already received deductions and want to respond formally, Remedy can generate a letter to your landlord citing the relevant legislation, including the Tenant Fees Act 2019 and the Housing Act 2004. A well-drafted letter before the adjudication stage resolves a significant number of disputes without needing to go through the formal process at all.

For tenants who want to take a dispute further, Remedy's full platform for £40 includes tribunal bundle generation, document storage, and deadline tracking. You can upload your check-in and check-out inventories, photographs, and correspondence, and Remedy will help you structure them into a coherent evidence submission.

If your situation is more complex, say your landlord never protected the deposit at all, or they're claiming deductions that look retaliatory, Remedy's no-win-no-fee human support tier connects you with an expert who will review your documents and advise on strategy. You only pay if the claim succeeds, at 10% of winnings.