Are HMO Licensing Costs Tax Deductible? HMRC's Position Explained

HMO licensing costs are generally tax deductible for landlords, because HMRC treats a mandatory or additional HMO licence fee as a revenue expense incurred wholly and exclusively for the property rental business. Under the HMO tax rules UK landlords must follow, the fee you pay your local council to license a house in multiple occupation can usually be set against your rental income, reducing the profit on which you pay income tax. There are important exceptions, particularly where a cost is capital rather than revenue in nature, and the treatment differs slightly for a first licence versus a renewal. Blue Tick Accountants, a Guildford-based UK tax advisory and accountancy practice, works with HMO landlords across the country on exactly these questions. This article explains HMRC's position on licence fees, which related HMO costs are allowable, how the deduction works in practice with a worked example, and the capital tax points to watch on purchase and sale.

Key Takeaways

• HMO licence fees paid to a local authority are generally an allowable revenue expense that landlords can deduct from rental income for income tax purposes.
• A first mandatory HMO licence fee is normally deductible as revenue, and a renewal fee is deductible in the tax year it is paid.
• Income from a house in multiple occupation is taxed as property income under the same rules as any other let, using the 5 April tax year end.
• The finance costs restriction (Section 24) applies to HMO mortgage interest, giving relief only as a 20% basic-rate tax credit in 2026/27.
• Capital improvements to an HMO, such as a loft conversion to add bedrooms, are not deductible against income but may reduce a future capital gains tax bill.
• Making Tax Digital for Income Tax applies to HMO landlords with qualifying property income above £50,000 from 6 April 2026, requiring digital records and quarterly updates.

Are HMO licence fees an allowable expense for tax?

HMO licence fees are an allowable expense because HMRC accepts they are incurred wholly and exclusively for the purposes of the property rental business. A mandatory HMO licence, required in England and Wales where a property is let to five or more people forming two or more households, is a legal condition of trading as an HMO landlord, so the fee is treated as a normal running cost rather than a personal expense. Additional and selective licensing fees imposed by individual councils are treated the same way. The house in multiple occupation tax position mirrors other regulatory costs a landlord must pay to let a property lawfully, such as gas safety certificates and electrical inspections, all of which reduce taxable rental profit.

Is a first HMO licence treated differently from a renewal?

A first HMO licence fee and a renewal fee are both normally deductible as revenue expenses, so in most cases the timing is the main difference. HMRC's long-standing view is that the cost of obtaining or renewing a licence needed to carry on an existing rental business is revenue in nature, and the deduction is taken in the tax year the fee is actually paid. Where a licence covers a fixed period, such as five years, the full fee is generally deductible when paid rather than spread across the licence term, in line with the cash basis that now applies by default to most individual landlords. If you buy a property that is not yet an HMO and license it for the first time as part of a wider capital project to convert it, the licensing cost can become bound up with capital expenditure, so the facts matter.

Which other HMO costs can HMO landlords deduct?

HMO landlords can deduct the day-to-day running costs of the property alongside the licence fee, provided each cost is revenue rather than capital. Allowable revenue expenses for a house in multiple occupation typically include: letting and management agent fees, buildings and contents insurance, council tax and utility bills paid by the landlord, cleaning and gardening for communal areas, routine repairs and maintenance, and safety certification such as gas, electrical and fire alarm testing. Because HMOs are more heavily regulated than single lets, these compliance costs are often higher, and they are all deductible when incurred for the rental business. Replacing a broken boiler like-for-like is a deductible repair, whereas installing central heating where there was none, or converting a reception room into an extra bedroom, is capital expenditure that is not deductible against rental income.

How does the deduction work in practice? A worked example

The deduction works by reducing your taxable rental profit, so its cash value depends on your income tax rate. Consider Priya, a higher-rate taxpayer who lets a five-bedroom HMO in Guildford. In 2026/27 she receives £42,000 in rent. She pays a five-year mandatory HMO licence fee of £1,100, letting agent fees of £4,200, insurance of £900, gas and electrical safety certificates of £480, communal cleaning of £1,600, and repairs of £2,300. Her total allowable revenue expenses, including the licence fee, are £10,580, giving a rental profit of £31,420 before finance costs. As a higher-rate taxpayer, the £1,100 licence fee saves her £440 in income tax (40% of £1,100). Separately, her buy-to-let mortgage interest of £9,000 does not reduce this profit directly; under the Section 24 finance costs restriction she instead receives a basic-rate tax credit of £1,800 (20% of £9,000) against her tax bill.

Licensing fees join the other deductions listed in our guide to deductible costs for landlords.

What about SDLT on purchase and CGT on sale?

Stamp Duty Land Tax on buying an HMO and Capital Gains Tax on selling one are separate from the income tax treatment of licence fees, and neither licence cost is deductible against income. When you buy an HMO you normally pay SDLT at residential rates, usually including the 5% higher rate for additional dwellings, unless the property is large or mixed enough to qualify as non-residential, which is a specialist question worth checking. When you sell, any gain is a capital gain. Capital improvement costs, such as converting rooms to create additional lettable bedrooms, are added to the property's base cost and reduce the taxable gain, even though they were never deductible against rental income. For a full overview of this topic, see our guide to HMO tax rules.

Frequently Asked Questions

Are HMO licence fees tax deductible in the UK?

Yes. HMO licence fees paid to a local authority are generally an allowable revenue expense that a landlord can deduct from rental income, reducing taxable profit. HMRC accepts the fee is incurred wholly and exclusively for the property rental business. Both mandatory and additional or selective licensing fees are treated the same way and are deducted in the tax year they are paid.

Is an HMO licence fee a capital or revenue cost?

An HMO licence fee for an existing rental business is normally a revenue cost, not a capital cost, so it is deductible against rental income. The fee becomes harder to deduct only where it forms part of a capital project, for example licensing a property for the first time as part of a conversion that also involves structural capital works. In most straightforward cases the fee is fully deductible when paid.

How is income from an HMO taxed?

Income from a house in multiple occupation is taxed as property income, using the same rules as any other residential let and the 5 April tax year end. You deduct allowable revenue expenses, including the licence fee, to arrive at your taxable rental profit. Mortgage interest is not deducted directly; instead the Section 24 restriction gives relief as a 20% basic-rate tax credit in 2026/27.

Do HMO landlords need to follow Making Tax Digital?

HMO landlords must follow Making Tax Digital for Income Tax if their qualifying property and self-employment income exceeds £50,000, with effect from 6 April 2026. Affected landlords must keep digital records and submit quarterly updates plus a final declaration by 31 January. Landlords with income above £30,000 join from April 2027, and those above £20,000 from April 2028.

Can I deduct the cost of converting a house into an HMO?

No, the cost of converting a house into an HMO is usually capital expenditure and cannot be deducted against rental income. Structural work, such as adding bedrooms or installing new fire-safe layouts, is capital in nature. These costs are instead added to the property's base cost and can reduce the capital gains tax due when you eventually sell, so keeping detailed records is important.

How Blue Tick Can Help

Blue Tick Accountants advises HMO landlords on how to classify licensing and running costs correctly, claim every allowable expense, and plan for Section 24, SDLT and capital gains tax. Getting the revenue-versus-capital split right on an HMO can be the difference between a clean return and an enquiry, and it directly affects how much tax you pay. Head to our website and book a meeting now.

Conclusion

HMO licence fees are, in almost all cases, a deductible revenue expense that reduces the rental profit you pay income tax on, and the same applies to the heavier compliance costs that come with running a house in multiple occupation. The key discipline is separating deductible revenue costs from non-deductible capital improvements, which instead reduce a future capital gains tax bill. Keep clear records of every licence fee, certificate and conversion cost so that each is claimed in the right place at the right time.

About the Author

This guide was written by Leon, founder of Blue Tick Accountants, a Guildford-based UK tax advisory and accountancy practice that helps landlords, limited company owners and the self-employed across the UK. It was last reviewed for the 2026/27 tax year.

This article is intended for general informational purposes only and does not constitute tax, legal, or financial advice. Tax rules are subject to change and their application will depend on your individual circumstances. You should always seek advice from a qualified professional before taking action. Blue Tick Accountants accepts no liability for decisions made on the basis of this content.

Related reading: Converting a Property to an HMO: The Tax Implications You Must Plan For.

Related reading: HMO vs Standard Buy-to-Let: Which Is More Tax Efficient?.