5 Common Inventory Mistakes That Cost Landlords Thousands

A weak inventory is the most expensive corner a landlord can cut. It costs nothing to skimp on — until a deposit dispute arrives and there's no solid evidence to fall back on. These are the six mistakes we see most often, why each one matters, and exactly how to avoid it.

1. No signed inventory at all

The biggest mistake, and the most common among self-managing landlords. Without a baseline the tenant has agreed to, you have almost nothing to compare the property against at the end of the tenancy — and the burden of proof in a dispute is on you. Always compile a proper inventory at the start, and get the tenant to review and sign it. A few minutes here saves you the entire deposit later.

2. Photos with no date or context

A folder of holiday-style snaps that aren't tied to a specific room or item carries very little weight. An adjudicator can't tell what they show or when they were taken. Every photo should be attached to the specific item it documents, so there's no ambiguity about what condition existed.

3. Recording damage but not cleanliness

A surprising share of deposit disputes are about cleaning, not breakages — and you can only claim for cleaning if you can show the property was cleaner at check-in. Record the cleanliness of every room at the start, using a consistent scale, so the end-of-tenancy difference is provable.

4. Inconsistent reports

If every inventory you produce looks different — different layout, different wording, different detail — your evidence looks unreliable as a body of work. Use the same structure and the same condition grades every time. Consistency is one of the four things adjudicators weigh, and it's entirely within your control.

5. Writing it up from memory later

Notes reconstructed days after the visit lose detail and credibility, and it's where errors creep in. Capture everything on site, while you're standing in the room — condition, cleanliness and photos together.

6. Never issuing it to the tenant

Even a perfect inventory is weakened if you can't show the tenant ever saw it. Give them the chance to review and comment, capture their sign-off, and keep proof of when and how you sent it. An inventory the tenant had the opportunity to check is far stronger evidence than one they never received.

The common thread

Every one of these mistakes is about evidence: having it, dating it, and being able to show the tenant agreed to it. Get the inventory right and most of these problems simply disappear. It's the cheapest insurance in lettings — and the most often skipped.