Betterment and proportionate deposit deductions
A tenant's deposit is security against a demonstrable loss, not a refurbishment fund. Where an item is damaged beyond fair wear and tear, the landlord may have a legitimate claim. But the amount must be supported by the starting condition, the cause and extent of deterioration, the most reasonable remedy and the actual loss. A landlord should not obtain a brand-new replacement at the tenant's expense when the original item had already provided years of service.
What betterment means
Betterment arises when a proposed deduction would leave the landlord materially or financially better off than they would otherwise have been. For example, replacing a worn five-year-old carpet with a new carpet and charging the entire replacement cost to the outgoing tenant would normally ignore the original carpet's age and prior use. The appropriate outcome might instead be a contribution towards the remaining useful life, a reasonable repair or cleaning cost, or no award if the deterioration is ordinary wear.
This is not a fixed statutory percentage table. Deposit adjudicators assess the circumstances and evidence. The relevant factors include the original item's age, quality, condition and likely useful life; length of tenancy; household size and use; nature of damage; and whether repair, cleaning or replacement is proportionate. There is no universally binding 'carpets last X years' formula.
Start with evidence, not an invoice
An effective claim normally needs: (1) the tenancy agreement and relevant obligations; (2) a dated, detailed check-in inventory recording the item and its condition, preferably with clearly identified photographs; (3) any tenant comments and dated maintenance records; (4) a comparable check-out report and photographs; (5) a concise explanation of what changed and why it exceeds fair wear and tear; and (6) reasonable quotations, receipts or invoices showing the remedy and cost. A receipt proves an expense was incurred; it does not by itself prove the tenant owes all of it.
Compare like with like. A close-up of a stain at check-out is less persuasive if the check-in inventory never recorded whether the carpet was clean, marked or already worn. An independent inventory report should describe observable condition neutrally, rather than decide liability.
Choosing a proportionate remedy
Cleaning may be suitable for a removable mark. Repair may be suitable for localised damage. Replacement may be reasonable if the item is unusable or repair would be uneconomic, but the tenant is not automatically responsible for the entire cost of a new item. Compensation may reflect diminished value or reduced remaining life. The landlord must also account for ordinary wear and any pre-existing deterioration.
Example: a proportionate claim
A carpet cost £600 new and was already four years old when a two-year tenancy began. At check-out it has a large burn that cannot reasonably be repaired. A new equivalent carpet costs £650. It would generally be inappropriate to claim £650 merely because the landlord chose to replace it. The adjudicator may consider the original carpet's age, quality, prior condition, expected remaining life, actual loss and evidence. No automatic award can be calculated from these figures alone.
A different case: a two-year-old carpet has a small removable stain. If reasonable cleaning would restore it, a supported cleaning charge may be more proportionate than replacing the entire carpet.
How the dispute is assessed
The landlord or agent normally has to substantiate the proposed deduction; the deposit remains the tenant's money unless a claim is established. Parties should first exchange evidence and try to agree the undisputed amount. Where agreement fails, the deposit protection scheme's alternative dispute resolution process may decide the allocation, subject to the scheme's rules and any choice to use the courts. Keep original files, timestamps and a clear chronology. Avoid speculative claims or inflated 'standard' deductions.
October 2026 tenancy context
In England, assured periodic tenancies replaced assured shorthold tenancies on 1 May 2026 under the Renters' Rights Act reforms. Applicable deposits must be protected in an approved scheme within 30 days, and prescribed information must be provided. The deposit must be returned within 10 days after both parties agree the amount to return. The reforms do not make normal wear and tear chargeable or permit automatic full replacement claims. Scotland, Wales and Northern Ireland have different legal frameworks and must not be assumed identical.
Frequently asked questions
Can a landlord charge the full price of a new mattress? Only where the evidence supports a loss of that value; a used item's age, condition and possible cleaning/repair options matter. Mydeposits publishes a case study where different mattress conditions led to different partial awards.
Does an invoice settle the claim? No. It helps demonstrate cost, but not starting condition, tenant responsibility or proportionate value.
Can a landlord use a fixed depreciation percentage? A calculation may help explain a proposal, but scheme adjudication does not mandate one universal percentage. Explain and evidence the assumptions.
Who decides liability? The parties may agree; otherwise a scheme adjudicator or court may determine the dispute. The inventory clerk supplies evidence of observed condition, not a binding legal judgment.
Sources and further reading
- GOV.UK, tenancy deposit protection: https://www.gov.uk/tenancy-deposit-protection
- GOV.UK, deposit prescribed information: https://www.gov.uk/deposit-protection-schemes-and-landlords/information-you-must-give-to-your-tenants
- Deposit Protection Service, burden of proof and betterment: https://www.depositprotection.com/learning-centre/disputes/common-dispute-questions
- Mydeposits, deposit dispute process and betterment: https://www.mydeposits.co.uk/content-hub/deposit-dispute-process/
- Mydeposits, adjudication case study on replacement mattresses: https://www.mydeposits.co.uk/content-hub/deposit-dispute-case-study-replacement-mattresses-fair-wear-tear/
- TDS, guide to deposits, disputes and damages: https://www.tenancydepositscheme.com/resources/files/A%20guide%20to%20deposits%20disputes%20and%20damages.pdf
Please note: Information, not legal advice; scheme guidance and outcomes are case-specific. Check the current source guidance for your circumstances.