Tenancy deposit disputes: how the adjudication process works and how landlords can be better prepared.

When a tenancy ends and a tenant disputes a deduction from their deposit, the case does not automatically go to court. Instead, each of the three government-approved tenancy deposit protection schemes operates a free dispute resolution service called adjudication. This process is faster and cheaper than going to court, but it has its own rules, its own standards of evidence, and its own common failure points for landlords. This article explains how adjudication works from start to finish, what evidence landlords need to have ready, and what the most common reasons are that landlords lose disputes they could have won. What is tenancy deposit adjudication? Adjudication is a formal dispute resolution process operated by each of the three government-approved tenancy deposit protection schemes: the Deposit Protection Service, MyDeposits, and the Tenancy Deposit Scheme. It is available to both landlords and tenants free of charge where there is a dispute about how much of the deposit should be returned. (Source: Tenancy deposit protection guidance, GOV.UK.) An adjudicator — an independent third party employed by the scheme — reviews the evidence submitted by both sides and makes a binding decision about how the deposit should be split. Neither party needs a solicitor. The process is conducted entirely in writing. When does adjudication apply? Adjudication applies where a landlord and tenant cannot agree on the amount to be returned at the end of a tenancy. If the landlord wishes to make a deduction and the tenant disputes it, either party can raise the dispute with their deposit protection scheme. (Source: Tenancy deposit protection guidance, GOV.UK.) Both parties must agree to use the scheme's dispute resolution service. If a party refuses or cannot be contacted, the scheme will still attempt to resolve the matter. There may be a time limit on when a dispute can be raised — landlords and tenants should contact their scheme as soon as possible after a dispute arises. What does an adjudicator decide? The adjudicator decides how the deposit should be divided between the landlord and the tenant based on the evidence submitted. They are not deciding fault in a legal sense — they are deciding what is fair and what the evidence supports. The adjudicator will consider what deductions are claimed, what evidence supports each deduction, and whether the deduction represents a fair charge given the age and condition of the item at the start of the tenancy. Adjudicators apply a principle of betterment — a landlord cannot claim the full cost of replacing a five-year-old carpet with a brand new one. The award will reflect the residual value of the item, not the replacement cost. (Source: Tenancy deposit protection guidance, GOV.UK.) What evidence does a landlord need? The landlord carries the burden of proof in a deposit dispute. This means that if a landlord cannot provide evidence to support a deduction, the adjudicator will find in favour of the tenant. The evidence that matters most includes the following. A check-in inventory signed by the tenant at the start of the tenancy, ideally with photographs showing the condition of each room, item of furniture, and fixture. Without a signed check-in inventory, a landlord has no documented baseline to compare against at the end of the tenancy. A check-out inventory or condition report prepared at the end of the tenancy, again with photographs, recording any damage, cleaning issues, or missing items. The check-out report should be conducted as close to the end of the tenancy as possible. Receipts or quotes for any remedial work, cleaning, or replacement items claimed as deductions. An unsupported estimate from memory is unlikely to satisfy an adjudicator. Professional cleaning invoices, contractor quotes, and receipts for replacement items all strengthen a claim. Evidence of the age and condition of items at the start of the tenancy. If a landlord claims for damage to a sofa that was already three years old at the start of the tenancy, the adjudicator will apply a deduction to account for fair wear and tear and the remaining useful life of the item. What is fair wear and tear? Fair wear and tear refers to the natural deterioration of a property and its contents through normal use over time. A landlord cannot make a deposit deduction for fair wear and tear — only for damage beyond what would be expected given the length and nature of the tenancy. (Source: Tenancy deposit protection guidance, GOV.UK.) What counts as fair wear and tear depends on factors including the length of the tenancy, the number of occupants, and the age and condition of the items at the start. A mark on a wall after a five-year tenancy is more likely to be considered fair wear and tear than the same mark after a six-month tenancy. What are the most common reasons landlords lose deposit disputes? The most common reasons landlords lose adjudication disputes are as follows. No signed check-in inventory. Without a documented baseline agreed by the tenant at the start of the tenancy, the landlord cannot prove what condition the property was in at the outset. The adjudicator has nothing to compare the check-out condition against. Poor or missing photographs. A written description of damage is far less persuasive than dated photographic evidence. Photographs taken at check-in and check-out showing the same area side by side are the most compelling evidence available to a landlord. Claiming for fair wear and tear. Landlords sometimes claim for repainting, carpet replacement, or general cleaning that would be expected after a normal tenancy. These claims are routinely rejected. No receipts or quotes. Claiming a specific amount for cleaning or repairs without invoices or professional quotes to support it is unlikely to succeed. Deductions claimed too late or incorrectly. Landlords must follow the scheme's process for raising a dispute within the required timeframe. Missing the deadline can result in the full deposit being returned to the tenant regardless of the merits of the claim. What happens if a landlord did not protect the deposit? If a landlord failed to protect the deposit in a government-approved scheme within 30 days of receiving it, or failed to provide the tenant with the prescribed information about the scheme within the same period, the tenant may apply to the county court. The court may order the landlord to repay the deposit and to pay compensation of between one and three times the deposit amount. (Source: Tenancy deposit protection guidance, GOV.UK.) A failure to protect the deposit also prevented a landlord from serving a valid Section 21 notice under the old rules. Under the Renters' Rights Act 2025, Section 21 no longer exists, but a failure to protect the deposit remains a serious legal exposure and may affect a landlord's ability to rely on certain Section 8 grounds. What this means for landlords The adjudication process is fair but it is evidence-driven. A landlord with a strong check-in inventory, dated photographs, and receipts for any work claimed will generally succeed on legitimate deductions. A landlord without these things will often lose even where the underlying claim is reasonable. The most important step any landlord can take is to conduct a thorough, photographed, tenant-signed check-in inventory at the start of every tenancy. This single document is the foundation of any successful deposit deduction claim. Deposit protection within 30 days and service of the prescribed information are legal requirements. Failure to comply exposes a landlord to court-ordered compensation of up to three times the deposit amount and undermines their legal position throughout the tenancy. This article is for informational purposes only and does not constitute legal advice.