Free Tenancy Deposit Dispute Calculator

Understand exactly what deposit deductions are fair — and what deposit schemes actually award. Used by landlords and letting agents across the UK.

Based on TDS & DPS guidelines Updated for 2026 regulations

When a tenancy ends, deposit disputes are one of the most stressful situations for landlords, letting agents and tenants alike. Understanding fair wear and tear, betterment and what evidence deposit scheme adjudicators actually look for can save thousands of pounds and weeks of stress. Our free calculator gives you an instant assessment based on current TDS, MyDeposits and DPS guidelines — helping you establish reasonable deductions before lodging a tenancy deposit dispute UK claim. Add each item you intend to claim for to see an apportioned, per-item breakdown.

Fair Deduction Estimate
£0 – £0
Betterment applied
Likelihood of success at deposit scheme
TDS / MyDeposits / DPS
Applicable schemes

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This deposit dispute calculator provides an indicative estimate only, to help illustrate how apportionment may work. It is not legal advice, not a valuation, and not a prediction of the outcome of any deposit scheme adjudication or dispute. Deposit disputes are decided by the relevant deposit protection scheme on their own evidence. S2F accepts no liability for decisions taken in reliance on the calculator's output. See our Terms & Conditions of Service.

The Best Protection Against Deposit Disputes? A Professional Inventory Report.

Timestamped photographic evidence accepted by all UK deposit schemes
Independent reports carry full weight with TDS, MyDeposits and DPS adjudicators
Landlords with S2F inventory reports win deposit disputes at significantly higher rates

Understanding Tenancy Deposit Deductions

What is Fair Wear and Tear?

Fair wear and tear refers to the natural deterioration of a property and its contents that occurs through normal everyday use during a tenancy. Under UK tenancy deposit scheme rules, landlords cannot claim deposit deductions for damage that falls within expected wear and tear — only for damage caused beyond what is considered reasonable. A scuff on a skirting board after a three-year tenancy is fair wear and tear; a hole in the wall is not.

Deposit scheme adjudicators — the independent assessors at TDS, MyDeposits and DPS — apply a concept called betterment when calculating reasonable deductions. If a carpet was already five years old at the start of a tenancy, a landlord cannot claim full replacement cost when it needs replacing at the end — they can only claim the remaining useful life value. The longer the tenancy, the more wear is considered fair, and the lower the deposit scheme is likely to award. Understanding this principle before lodging a claim is essential for any successful tenancy deposit dispute UK resolution.

What Evidence Do Deposit Schemes Need?

The single most important factor in any tenancy deposit dispute is the quality of evidence. A check-in report (also called an inventory report) documents the exact condition of the property and its contents at the start of the tenancy. A check-out report documents the condition at the end. Without both, adjudicators at TDS, MyDeposits and DPS have no objective baseline for comparison — and in the absence of evidence, they will typically side with the tenant.

Independent reports produced by professional property inspectors carry significantly more weight than landlord-produced reports. S2F Property Services produces timestamped, photographic inventory reports and check-out reports accepted by all major UK deposit protection schemes. Our deposit deduction evidence is gathered by trained, independent property inspectors with no stake in the dispute — which is exactly what adjudicators look for. Letting agents and landlords who use professional check-in and check-out reports resolve deposit disputes faster and secure higher award rates.

How Betterment Affects Your Claim

Betterment is the principle that a landlord should not be financially better off after a deposit deduction than they were before the tenancy began. If a landlord replaces a five-year-old carpet at the end of a tenancy — because the tenant caused damage — they receive a brand new carpet at the tenant's expense. That would be betterment. To prevent this, deposit scheme adjudicators apply a depreciation calculation based on the item's age, expected lifespan, and the length of the tenancy.

For example: a carpet valued at £800 with a typical lifespan of 10 years that is 4 years old at the start of a tenancy has 60% of its useful life remaining — a starting value of approximately £480. After a two-year tenancy, 20% more life has been used, reducing the claimable value further. If a tenant causes damage requiring full replacement, the adjudicator may award approximately £320 — not £800. This is why the deposit deduction calculator above applies both age-based betterment multipliers and tenancy length adjustments, reflecting how deposit scheme adjudicators actually assess fair wear and tear claims in practice.