Debt hasn't got cheaper. And from 6 April 2027, property income is taxed at 22%, 42% and 47%. On an HMO, running costs already take most of the gross yield, so those two extra points come out of a net figure that was thin before anyone touched the rates.
This guide covers planning, licensing, true operating cost, and post-tax return under personal versus company ownership. Mortgage sourcing and Renters' Rights Act compliance sit outside it. If you already hold a portfolio, a structure review will answer your question better than any article will.
Key Takeaways
Why HMO Investment Feels Different in 2026
Article 4 Directions are one of the main planning risks to check. In England, converting a C3 family home into a small C4 HMO can usually be done under permitted development rights. However, if an Article 4 Direction applies, you will need to get planning permission before changing the property’s use. That can make an established HMO with confirmed lawful planning use more attractive, although planning permission and HMO licensing are separate requirements, and an HMO licence does not transfer with the property, so a new owner will need to apply for their own licence if one is required.
HMO Tax Changes in 2026: What Landlords Should Plan For
Property Income Tax rates from April 2027. From 6 April 2027, individual landlords in England, Wales and Northern Ireland will face separate property Income Tax rates of 22%, 42% and 47%. Residential finance-cost relief will also be calculated at the 22% property basic rate, making borrowing costs even more important when working out your after-tax return.
High Value Council Tax Surcharge from April 2028. The government plans to introduce a new surcharge on residential properties in England worth £2 million or more. The proposed charges start at £2,500 a year for properties valued between £2 million and £2.5 million and rise to £7,500 a year for homes worth more than £5 million. The surcharge is expected to take effect from April 2028, although some details are still being finalised.
Making Tax Digital for Income Tax. MTD already applies since 6 April 2026 where an individual's qualifying income exceeded £50,000 in 2024/25. The threshold falls to more than £30,000 from April 2027 and more than £20,000 from April 2028. For HMO landlords, the key point is that qualifying income is based on gross property and self-employment income before expenses, not taxable profit.
The 28 October 2026 Budget could change the picture again. Until then, HMO investors should base their calculations on measures that are already legislated or officially announced rather than speculation. A deal that looks attractive before tax can look very different once finance costs, compliance expenses and the landlord's ownership structure are taken into account.
How Will the 2027 Tax Changes Affect HMO Investors?
For simplicity, this example assumes the landlord’s other income means the full £27,000 property profit falls within the higher-rate band. It also assumes annual qualifying mortgage interest of £9,000.
Worked Example | 2026/27 | 2027/28 |
|---|---|---|
Gross rent: 6 rooms × £600 × 12 | £43,200 | £43,200 |
Less: allowable non-finance costs, including bills, management and repairs | (£16,200) | (£16,200) |
Taxable property profit | £27,000 | £27,000 |
Tax on property profit at higher rate (i) | £10,800 (40% × £27,000) | £11,340 (42% × £27,000) |
Assumed qualifying mortgage interest | £9,000 | £9,000 |
Less: finance-cost tax reduction (ii) | (£1,800) (20% × £9,000) | (£1,980) (22% × £9,000) |
Illustrative net tax on property profit (i − ii) | £9,000 | £9,360 |
This example assumes the landlord can claim the full finance-cost tax reduction. In practice, the relief is based on the lower of qualifying finance costs, property business profits and adjusted total income, and it cannot create a tax repayment.
On these assumptions, the tax bill rises by £360 a year on one HMO, or £1,440 across four identical properties. The increase may look modest in isolation, but it sits alongside the existing residential finance-cost restriction, often known as Section 24, and the 5-percentage-point SDLT surcharge on additional residential properties where the higher rates apply. Licensing, safety compliance and other running costs can put further pressure on the return.
These figures are illustrative. Your actual tax position will depend on your total income, available allowances, finance costs and whether the HMO is owned personally, through a partnership or by a limited company.
Personal Allowance from April 2027
For example,
Suppose you receive £10,000 salary and £8,000 rental profit. If you have the full £12,570 Personal Allowance, from April 2027 it is used against the £10,000 salary first. The remaining £2,570 reduces your rental profit, leaving £5,430 of property income taxable at the relevant property income tax rate.
Non-resident landlords
For example,
If your agent collects £1,000 rent and there are no deductible expenses to take off first, the NRLS deduction at 22% would be £220, leaving £780. The £220 is then credited towards your final UK tax liability.
Does the HMO Yield Still Justify the Extra Work?
Energy efficiency is another cost HMO landlords need to factor in. For rented homes covered by MEES in England and Wales, the current minimum standard is generally EPC E, unless an exemption applies.
From 1 October 2030, the government plans to raise the standard to EPC C or equivalent. Landlords would generally be expected to spend up to £10,000 per property on qualifying improvements, subject to the final regulations.
HMOs can also soften the impact of vacancies. If six rooms are rented at the same rate and one becomes empty, potential gross rent falls by about 17%, while income from the other five rooms continues. However, ongoing costs such as utilities, maintenance and mortgage payments will still need to be covered.
Should You Buy an HMO Through a Limited Company?
Buying an HMO through a limited company can make sense, especially if the property is heavily mortgaged. Companies are not affected by the residential finance-cost restriction that applies to individual landlords, and qualifying borrowing costs are generally dealt with under the Corporation Tax rules. Rental profits are taxed under Corporation Tax rather than the individual property income tax rates. But a company is not automatically the cheaper option, because additional tax can arise when you take profits out personally.
For CGT, Incorporation Relief can defer some or all of the gain when a qualifying business is transferred to a company. Since 6 April 2026, you must claim the relief rather than receiving it automatically.
Separate SDLT partnership rules may also reduce the amount charged when qualifying partnership property is transferred to a company. These rules have different conditions, so neither should be assumed to apply automatically.
What Should You Check Before Buying an HMO in 2026?
- Check the planning position first. Find out whether an Article 4 Direction applies and whether the property’s existing or proposed HMO use is lawful, including whether C4 or sui generis planning permission may be needed.
- Review the local HMO licensing rules. Check the council’s licensing scheme, minimum room sizes, occupancy limits and current licence fees before you commit to the purchase.
- Budget for compliance as well as refurbishment. Factor in any fire-safety, electrical, gas and other HMO compliance works the property may require.
- Work with a realistic net yield. Include management costs, utilities, repairs and room-by-room void periods instead of assuming full occupancy throughout the year.
- Compare the tax position before and after April 2027. Run the numbers under the 2026/27 rules and the new property Income Tax rates taking effect from 6 April 2027.
- Check your Making Tax Digital position. MTD is based on your qualifying gross property and self-employment income before expenses, using the relevant earlier tax return.
- Compare personal and limited-company ownership before exchange. Mortgage interest, rental profits and future property transfers can be taxed differently depending on how the HMO is owned.
- Plan for future energy-efficiency costs. Consider what upgrades may be needed to meet the government’s planned EPC C-equivalent standard from 1 October 2030, taking account of the proposed cost cap and any available exemptions.
Thinking about Buying or Restructuring an HMO?
UK Property Accountants runs a fixed-fee HMO Structure Review: we model your deal under the 2026/27 rules and the April 2027 property Income Tax rates, compare personal against limited company ownership, and quantify the SDLT and CGT cost of any transfer before you commit.
Conclusion & Next Steps
HMOs can still work in 2026, but the numbers need to stack up after planning, licensing, tax and running costs. Before buying or restructuring, model the deal using realistic assumptions and factor in the April 2027 property tax changes and your Making Tax Digital obligations.
UK Property Accountants helps HMO landlords and portfolio investors compare ownership structures, assess incorporation and understand the tax cost before making a change. A fixed-fee structure review can show how the 2027 rules may affect your portfolio and whether restructuring makes financial sense.
Frequently Asked Questions
They can be, but there is no standard HMO yield across the UK. Your actual return depends on the purchase price, achievable rent, occupancy, mortgage costs, management fees, licensing and ongoing compliance costs. The key figure to focus on is the net return after all costs, not the headline gross yield.
Under the current rules, ordinary property income is not generally subject to National Insurance contributions. Separate property Income Tax rates will apply from April 2027 instead. Any future proposal to charge National Insurance on rental income should not be treated as confirmed unless it is officially announced and legislated.
No separate Income Tax rate applies simply because a property is an HMO. From 6 April 2027, individual landlords in England, Wales and Northern Ireland will pay property income tax at 22%, 42% or 47%, depending on their taxable income. HMOs owned through a limited company remain subject to Corporation Tax rules.
Generally, plant and machinery used within the HMO itself will not qualify for capital allowances. HMRC treats an HMO as a dwelling-house for these rules, including shared internal areas such as hallways, stairs and landings. However, the tax treatment can depend on the exact type of expenditure, so individual items should be reviewed before making a claim.
No, but planning and licensing need to be checked before you buy or convert a property. In an area covered by an Article 4 Direction, permitted development rights for converting a C3 home into a small C4 HMO may be removed, meaning planning permission could be required. Local HMO licensing rules may also apply, so confirm the position before relying on projected rental returns.
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