Do I need an HMO licence? Number of tenants rules | August

Is your property actually an HMO, and do you need a licence?

A property is a house in multiple occupation if at least three tenants live in it forming more than one household and sharing a kitchen or bathroom. Whether you need a licence is a separate question that depends on how many people live there and on your local council. Mandatory licensing applies to any HMO with five or more occupants, but smaller HMOs of three or four people can still need a licence where the council runs an additional licensing scheme. Many landlords are surprised to find they are running a licensable HMO without realising it, so this guide explains how to tell, and what a licence depends on.

Is your property an HMO?

The test has three parts. The property is an HMO if it is occupied by at least three tenants, who form more than one household, and who share an amenity such as a kitchen or bathroom. A household is a single person or members of the same family living together, so a couple count as one household and three unrelated sharers count as three. That means three friends renting a house together are an HMO, and a couple sharing with one friend are also an HMO because they form two households, while a family of any size is a single household and is not. The full definition is set out in our entry on what an HMO is.

Do I need an HMO licence for 3 tenants?

Three tenants forming two or more households make the property an HMO, but three occupants do not trigger mandatory licensing, which begins at five. So in many areas a three-tenant HMO does not need a licence. The important caveat is additional licensing: a large number of councils run schemes that extend licensing to smaller HMOs, including three and four-person households, in designated areas. Where additional licensing is in force, a three-tenant HMO does need a licence. The only reliable answer is to check whether your council has such a scheme for the property's area.

Do I need a licence for 4 or 5 or more tenants?

Four tenants are treated the same way as three: the property is an HMO, mandatory licensing does not yet apply, but additional licensing often does, so it depends on the council. At five or more occupants forming two or more households, the position is clear and national: mandatory HMO licensing applies everywhere in England, and the property must be licensed regardless of the local schemes. There is no area where a five-person HMO is exempt. The government's overview of when a licence is required is on gov.uk, and our mandatory HMO licensing guide explains the mandatory, additional and selective schemes in detail.

How to check whether you need a licence

Start with the headcount. Five or more occupants in two or more households always needs a mandatory licence. For three or four occupants, check your local council's website for an additional licensing scheme covering the property's area, because these vary widely between councils and even between neighbourhoods within a council. While you are checking, look also for any planning constraint: in some areas an Article 4 direction means converting a property to an HMO needs planning permission as well as a licence, which is a separate consideration from licensing. What the HMO licence itself involves, including the cost and the conditions, is covered in its own entry.

Can you avoid needing an HMO licence?

There is a legitimate way to think about this and a dangerous one. You can genuinely fall outside licensing by letting to a single household, such as a family, or by keeping a property below the threshold that applies in your area, and those are sound decisions to make before you let. What does not work is dressing up a licensable HMO as something else, because a council looks at how the property is actually occupied, not at how the tenancy is labelled. Operating a licensable HMO without a licence is a serious matter: from 2026 a council can impose a civil penalty of up to £40,000 as an alternative to prosecution, a tenant or the council can apply for a rent repayment order of up to 24 months of rent, and while the property is unlicensed your ability to regain possession is restricted. The cost of getting it wrong is far higher than the licence fee, so the safe course is to confirm your position rather than assume the rules do not apply.

Frequently asked questions

Do I need an HMO licence for 3 tenants?

Three tenants from two or more households make the property an HMO, but mandatory licensing only begins at five occupants. A three-tenant HMO still needs a licence where the council operates an additional licensing scheme, so check your local area.

What counts as an HMO?

A property let to at least three tenants who form more than one household and share a kitchen or bathroom. A couple counts as one household, and unrelated sharers each count as a separate household.

How many tenants makes an HMO?

Three, provided they form at least two households and share facilities. Five or more occupants in two or more households also makes it subject to mandatory licensing.

What happens if I do not license my HMO?

You risk a civil penalty of up to £40,000 or prosecution, a rent repayment order of up to 24 months, and restrictions on regaining possession. You can start for free and keep your licence and its conditions tracked against the property.

Disclaimer: This article is a guide and not intended to be relied upon as legal or professional advice, or as a substitute for it. August does not accept any liability for any errors, omissions or misstatements contained in this article. Always speak to a suitably qualified professional if you require specific advice or information.