How to win a deposit dispute: the evidence adjudicators actually reward

Most landlords and agents who lose deposit disputes don’t lose because their claim was wrong. They lose because they couldn’t prove it. The adjudicator never visits the property, never speaks to either party, and bases their decision entirely on the written evidence submitted. If the evidence isn’t there, the money goes back to the tenant — regardless of what actually happened.

Understanding how adjudicators actually think, and what they look for, changes everything about how you document a tenancy.

Who carries the burden of proof?

The landlord does. Full stop.

In a deposit dispute, the deposit is treated as the tenant’s money until proven otherwise. It isn’t “split down the middle if both sides have a point” — it’s “show me the evidence or lose the deduction.” If a landlord cannot demonstrate, with documentation, that a loss occurred during the tenancy and that the deduction is proportionate, the adjudicator will find for the tenant.

This isn’t a technicality. It shapes everything: what you photograph, what you record, what you have signed, and when.

How common are disputes, and what causes them?

Less common than you might think — but high-stakes when they arise. In the 12 months to the 2024/25 reporting period, just 1% of protected deposits in England and Wales (46,950 cases) went to formal adjudication, according to the Tenancy Deposit Scheme’s statistical briefing. That means more than 99% of tenancies end without a formal dispute. But with the average protected deposit now at a record £1,175, the ones that do reach adjudication matter.

Cleaning is the single biggest trigger, featuring in 54% of TDS adjudication cases. Damage comes second (49%), redecoration third (31%), gardening (14%), and rent arrears (10%).

What’s notable is how preventable most of these disputes are — not because the underlying issue wouldn’t have arisen, but because better documentation at the start of the tenancy would have resolved it without adjudication.

What the adjudicator is actually looking for

Adjudicators don’t do site visits. They read documents. That shapes what wins.

A check-in inventory with photographs. This is the foundation. Without a signed check-in report, you cannot demonstrate what condition the property was in at the start of the tenancy — which means you cannot demonstrate what changed. A landlord who documents damage at check-out but has nothing comparable from check-in gives the adjudicator no way to know it hadn’t always looked that way.

A matched check-out report. The comparison between check-in and check-out is the mechanism by which damage is proved. The two reports need the same structure, the same room-by-room format, and comparable photographs so the change is visible and legible. A check-out report that doesn’t mirror the check-in leaves gaps an adjudicator can’t fill.

Invoices and quotes, not estimates. Adjudicators want professional invoices with a breakdown of work. “End of tenancy cleaning: £350” as a single line is regularly challenged. An invoice that itemises the work, from a contractor with contact details, is far harder to dispute. DIY work claimed by the landlord rarely succeeds at full value.

Evidence of the item’s age and condition. If you’re claiming for a damaged carpet or a broken appliance, the adjudicator applies a depreciation calculation — they won’t award “betterment,” which would let you replace something old with something new at the tenant’s expense. A five-year-old carpet claimed at full replacement cost will be reduced. Evidence of purchase — a receipt, a specification, or an inventory photograph showing original condition — helps justify your figure.

Communication records. Emails flagging issues during the tenancy, maintenance request threads, and move-out notifications all support a claim and show the issue wasn’t manufactured at the end.

What “fair wear and tear” actually means in practice

This is where many landlord claims come unstuck. Adjudicators distinguish between tenant damage (claimable) and fair wear and tear (not claimable) by weighing several factors together: the length of the tenancy, the number of occupants, the quality and expected lifespan of the item, and the documented condition at the start.

A scuff on a wall after a five-year tenancy is almost certainly fair wear and tear. The same scuff after a six-month tenancy is less clear, and a large gouge is different again. The widely cited definition of fair wear and tear — deterioration from “reasonable use of the premises by the tenant and the ordinary operation of natural forces” — concerns the property’s condition, not its cleanliness. Tenants are generally expected to return the property to the same cleanliness standard as at the start, which is why the inventory needs to document that starting standard clearly enough for the comparison to hold up.

The most common reason landlords lose

A recurring theme in adjudication guidance is the inventory that was never properly agreed. A landlord can commission a thorough professional check-in report and still lose the entire deduction if the tenant never signed it or was never given a copy. Without evidence the tenant agreed to the check-in record, an adjudicator may decide it can’t be relied on as a baseline — and the whole deposit goes back.

This is more common than it should be. The process isn’t just about doing the inventory — it’s about getting the right signatures, giving the tenant their copy within a reasonable window to raise amendments, and retaining that paperwork in a retrievable form.

Tools like InventoryGoose handle this automatically — producing a timestamped, tenant-signed digital report that is both robust and instantly retrievable if a dispute arises months or years later. That signed record is what flips a dispute in your favour.

Cleaning claims: the most disputed category

Because cleaning features in more than half of all adjudicated cases, it deserves specific attention. To stand a chance with a cleaning claim you need:

• A check-in inventory that documents the cleanliness standard clearly (ideally noting it was professionally cleaned to a set standard)
• Comparative check-out photographs showing the deterioration
• A professional cleaning invoice itemising the work done
• A tenancy agreement clause that sets out the expected standard at the end

Without the check-in baseline, “the tenant left it dirty” is just an assertion. Adjudicators can’t act on assertions.

The deposit protection deadline you can’t miss

Before any of the evidence even matters, the deposit must be protected with a government-authorised scheme within 30 days of receipt — and the tenant must be given the Prescribed Information. Failure to do this exposes a landlord to a court claim for compensation of between one and three times the deposit, regardless of whether any dispute exists, and weakens your position in any subsequent proceedings. (The Renters’ Rights Act 2025 reformed the wider tenancy regime, so check current scheme guidance for how the rules apply to your tenancy.)

If you’re managing multiple tenancies, PropertyGoose’s referencing and tenancy management workflow integrates these steps so nothing slips through.

Before you get to a dispute: what actually prevents them

The most valuable insight from the TDS data is how avoidable most disputes are. Cleaning disputes arise from differing expectations at check-out. Better documentation at check-in, clearer tenancy agreement clauses about the expected end-of-tenancy standard, and a check-out inspection the tenant attends all reduce the chance of a dispute reaching adjudication.

Where landlords or agents invest in comprehensive inventory reports — detailed, timestamped, tenant-signed — the majority of disputes are resolved at the negotiation stage, because the evidence is unambiguous. Tenants who see clear before-and-after documentation are far more likely to agree to a reasonable deduction without escalating.

A thorough inventory doesn’t just win disputes. It prevents most of them from starting.

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PropertyGoose provides tenant referencing, inventory reports, and full tenancy lifecycle management for UK landlords and letting agents. See how referencing and inventories work together, or compare our pricing.

Author: Craig Ryder