How much are HMO management fees?
There is no authoritative UK-wide percentage. Agents define and bundle HMO services differently, so the decision-grade answer is the annual cash cost under the actual proposal—not a headline percentage copied from an article.
Use this formula:
annual management cost = recurring percentage fee + VAT + fixed/per-room charges + tenant-find and renewal fees + inspection/call-out allowances + owner-paid communal services
Calculate the recurring percentage on the contractual base. Some quotes use rent collected; others use rent due or another defined amount. Do not count void rent as a management fee: model it separately so the cause remains visible.
Fee comparison matrix
| Cost | What to confirm | Where to model it |
|---|---|---|
| Recurring management | Percentage and whether applied to rent due or collected | Management cost |
| VAT | Whether the quote is inclusive or exclusive | Add to the fee if applicable |
| Tenant find / room let | Per tenancy, room or renewal | Letting and renewal costs |
| Inspections | Included frequency and extra visit price | Fixed operating cost |
| Maintenance handling | Mark-up, minimum charge and approval limit | Maintenance cost |
| Cleaning / gardening | Scope, frequency and consumables | Communal operating cost |
| Emergency call-outs | Included hours and contractor mark-up | Contingency or fixed cost |
| Void loss | Room-level vacancy and seasonality | Lost rent, not management |
Worked example
Assume a five-room HMO produces £3,000 gross rent per month. The manager charges 12% of collected rent plus VAT, and the proposal includes £600 of annual inspections and administration outside that fee.
- Recurring fee:
£36,000 × 12% = £4,320 - VAT at 20% on that fee:
£864 - Fixed extras:
£600 - Total modelled annual management cost:
£5,784
If a different agent quotes 15% “all inclusive,” compare the service schedule and exclusions before concluding it is dearer. Put each proposal into the yield calculator, with room voids, utilities, council tax, insurance and maintenance shown separately.
Questions to send the managing agent
- What is the percentage base: rent due, invoiced or actually collected?
- Is VAT included?
- Which tenant-find, renewal, inspection and compliance visits are included?
- Is contractor work marked up, and what can be approved without the owner?
- Who pays utilities, communal cleaning, gardening and consumables?
- How are arrears, room voids and out-of-hours calls handled?
Attach the actual proposal, review date and service schedule. A single “management 10%” assumption is not evidence. If no quote exists, mark the input as provisional and show a sensitivity range rather than presenting it as a local market fact.
References
Reviewed 26 August 2026. Educational cost-modelling guidance, not a quote or recommendation of an agent.
