Council Tax on HMOs UK 2026: Who Pays After the 2023 Rules

If you let an HMO in England, the council tax bill comes to you. Since 1 December 2023 the whole house counts as one dwelling, with one band and one bill. This guide covers what changed, what it means in practice in 2026, how much rent-inclusive HMO landlords save, and what to check on any HMO you buy.

Before then, the Valuation Office Agency (VOA) could rate individual rooms in an HMO as separate dwellings for council tax. A five-room HMO where three rooms had en-suites might have four separate council tax bands, all attached to the tenants, some of whom qualified for the single-person discount and some who didn’t. The result was a compliance nightmare, a lot of bad debt, and a lot of tenants paying more for council tax than they’d have paid in a self-contained flat.

The Council Tax (Chargeable Dwellings and Liability for Owners) (Amendment) (England) Regulations 2023, in force from 1 December 2023, changed all that.

Not tax advice. Local authorities apply the rules with some variation and case-specific analysis matters.

What the 2023 regs actually did

Two headline changes:

1. HMOs treated as a single dwelling. From 1 December 2023, a property that is a House in Multiple Occupation (HMO) as defined in section 254 of the Housing Act 2004 is treated as a single dwelling for council tax purposes: one property, one band, one bill.

2. The landlord is liable. The council tax bill for that single dwelling goes to the owner of the property, not to the tenants. Owners were already liable for council tax on HMOs before 2023. What changed on 1 December 2023 is that the whole HMO counts as one dwelling, with one band and one bill.

Before the 2023 regs, rooms in the same HMO could be individually banded, often at Band A per room, adding up to more than the whole-property band. After the 2023 regs, the whole HMO is banded once as a single dwelling, and the landlord pays.

With the bill in your name, the room rents have to carry it. From £7.99 a month, LetCompliance holds each room with its own rent and deposit, shows an empty room as vacant rather than hiding it, and records the council tax as a cost against the house. Get started

What a "House in Multiple Occupation" means here

The council-tax definition tracks section 254 Housing Act 2004:

• Occupied by persons who do not form a single household (unrelated tenants), and either:
• The occupants share a basic amenity (kitchen, bathroom, WC), or
• The property was originally constructed or subsequently adapted for occupation by persons who don’t form a single household.

So most classic HMOs are in: student houses, professional shared houses and worker accommodation.

Bedsits and self-contained studio blocks are trickier. A property with fully self-contained studio units (each with its own kitchen, WC and bathroom behind its own front door) may not be an HMO, because each studio is its own dwelling for council tax. Check the VOA banding decision on the property.

The maths: what landlords typically save

An example five-room HMO in a typical Northern city:

Pre-Dec 2023 arrangement: Each of the 5 en-suite rooms banded as Band A. Council tax £1,500 × 5 = £7,500/year billed to the tenants. Landlord takes rent-only; tenants pay CT direct.

Post-Dec 2023 arrangement: Whole property banded as Band D. Council tax £2,300/year, billed to the landlord. Rent typically re-priced to be inclusive, adding £460 a room a year (about £38 a month) which the landlord collects as part of rent. Landlord pays the £2,300.

Net position: Tenants save £1,500 - £460 = £1,040 a year each. The landlord is no worse off only if the rent rises by £460 a room, because that is what covers the £2,300 bill.

Where it changes the landlord’s economics: for HMO conversions that were already single-banded pre-2023 (many were), the 2023 regs simply confirmed the position and there’s no windfall.

What to do if your HMO was multi-banded

If you own an HMO that was on multiple council tax bands before December 2023, apply to the VOA to have the bandings removed and replaced with a single band on the whole property. VOA will issue a new banding decision covering the whole HMO.

Existing multi-banded HMOs were not automatically consolidated. The landlord has to trigger the review. If the property is still on multiple bands, check it is banded as one dwelling, and ask the VOA to review it if not.

If you have overpaid council tax since 1 December 2023, you can also request a backdated refund from the local billing authority.

Rent-inclusive vs bills-separate, which now?

Pre-2023, most HMOs let with bills separate because tenants held the council tax directly. Post-2023, the landlord is liable for council tax whether or not it is included in the rent, so rent-inclusive of all bills is now the operationally sane choice for most HMOs.

Practical implications:

• Price the CT into the room rent (spread evenly across rooms).
• Include CT + utilities + broadband as a single rent-inclusive package. This is what students and young professionals expect.
• Void periods still cost you: CT is billed to the owner whether or not the room is let. A vacant HMO room does not mean no CT charge on that share; the whole property is banded once, so the landlord pays the same all year.

If the property has an HMO licence or is subject to additional/selective licensing, price the licensing amortisation into rent as well.

Exemptions and discounts to know

Single Person Discount doesn’t apply room-by-room in an HMO after 2023. The whole property is a single dwelling, and unless the sole occupier of that whole dwelling is a single person, there’s no discount.

Student exemption still works: if all occupiers of the HMO are full-time students, the property qualifies for a class N exemption (student HMO, no council tax). This is a huge advantage for student HMO landlords, saving £2,000–£3,500/year per property.

Mixed HMOs (e.g. 4 students + 1 non-student) don’t qualify for the class N exemption; the property is taxable as a single dwelling and the landlord pays.

Empty property discount: for a fully vacant HMO between tenancies, empty-home discounts are up to each council, and many give none. Check with the billing authority.

Bookkeeping and MTD

Council tax paid on an HMO is a deductible expense for property income. For MTD ITSA landlords (mandated £50k+ from 6 April 2026), council tax goes under rent, rates, insurance and ground rents, the same heading it goes under on the SA105.

Keep the council tax bill and your direct debit records on file as evidence. In LetCompliance the council tax goes in as an expense on the property, shows in that property’s profit and loss, and flows straight through to the SA105 tax pack and your MTD quarterly updates. With room-by-room rent on the same property, you can see whether the inclusive rents are covering the bill.

Sources

• Council Tax (Chargeable Dwellings and Liability for Owners) (Amendment) (England) Regulations 2023: legislation.gov.uk
• GOV.UK: Council Tax on Houses in Multiple Occupation
• National Residential Landlords Association (NRLA): Members’ guidance on the 2023 HMO council tax changes
• Housing Act 2004: section 254 (Meaning of "house in multiple occupation")