Buy-to-Let in 2026: The Year the Rules Changed

For anyone who owns a rental property in England, or has thought about buying one, 2026 has been the busiest year for rule changes in a generation. The way tenancies work changed overnight on 1 May. Tax on rental income is set to rise from April 2027. Energy efficiency targets that were discussed for years now have a date attached.

This is a plain-English tour of what has changed and what is still coming, written for general interest. It is not advice — the details matter, they differ across the UK's four nations, and anyone making a decision should speak to a solicitor, mortgage broker or tax adviser. But it should help you ask them the right questions.

The Big One: The Renters' Rights Act

The Renters' Rights Act 2025 received Royal Assent in October 2025, and its main changes for private tenancies in England came into force on 1 May 2026. In short:

• Section 21 “no-fault” evictions have been abolished. Landlords can now only regain possession on specific legal grounds set out in the Act — for example, wanting to sell or move in, or serious rent arrears.
• Fixed terms have gone. Existing assured shorthold tenancies became periodic tenancies that simply roll on. Tenants can leave by giving two months' notice.
• Rent can rise only once a year, by formal notice with at least two months' warning. Tenants can challenge an increase at a tribunal.
• Rental bidding is banned. Landlords and agents must publish an asking rent and cannot accept offers above it.
• Rent in advance is capped at one month.
• Blanket bans are out. It is now unlawful to turn tenants away simply because they have children or receive benefits, and landlords must consider a request to keep a pet and cannot unreasonably refuse it.

More is on the way. A national register of private landlords and rental properties opens region by region from December 2026, starting in the West Midlands, with London due in July 2027 and every region covered by November 2027. The government has said registration will cost £65 per property per year. A Landlord Ombudsman, which private landlords will have to join, is expected to follow, and a Decent Homes Standard for privately rented homes has been confirmed to apply from 2035. The government is also consulting, until 18 December 2026, on extending “Awaab's Law” — strict timescales for dealing with damp, mould and other hazards — to private rented homes.

The government's implementation roadmap is the best single place to follow the timetable.

What it means in practice: a rental property is now a longer-term, more regulated commitment. The option to end a tenancy at short notice without giving a reason has gone, and the paperwork expected of landlords is growing.

Tax: What Has Changed, and What Is Coming

Stamp Duty

Buyers of additional residential property in England and Northern Ireland pay a 5% surcharge on top of the standard Stamp Duty Land Tax rates, up from 3% since 31 October 2024. The standard rates themselves rose in April 2025, when the nil-rate band went back to £125,000. Together, the numbers add up quickly: on a £250,000 additional property, a UK-resident buyer would pay £15,000 — £2,500 at standard rates plus £12,500 of surcharge. Non-UK-resident buyers pay a further 2%, and Scotland and Wales have their own property taxes. GOV.UK lists the current rates.

Mortgage Interest (Section 24)

Individual landlords have not been able to deduct mortgage interest from rental profits since 2020. Instead, they receive a tax credit worth 20% of their finance costs — which means higher-rate taxpayers effectively pay tax on income that goes straight to the lender. Companies are treated differently, which is one reason some landlords hold property through a limited company. That route has its own costs, lending rates and tax consequences, and it is firmly a question for a qualified tax adviser.

New Property Income Tax Rates From April 2027

Announced in the November 2025 Budget and now legislated, rental profits will be taxed at their own rates from 6 April 2027: 22% at basic rate, 42% at higher rate and 47% at additional rate — two percentage points above the standard income tax rates. The Section 24 tax credit will be calculated at 22% to match. Scotland sets its own income tax rates, so landlords there should check how the change applies to them. HMRC's technical note sets out the detail.

Making Tax Digital

Since 6 April 2026, landlords and sole traders with more than £50,000 of qualifying income have had to keep digital records and send quarterly updates to HMRC using compatible software. The threshold falls to £30,000 from April 2027 and £20,000 from April 2028. “Qualifying income” means gross rent and self-employment income before expenses — so a landlord with modest profits but substantial rent can still be caught. GOV.UK has an eligibility checker.

Borrowing in 2026

The Bank of England cut Bank Rate to 3.75% in December 2025 and has held it there at every meeting this year, with the next decision due on 5 November. Mortgage rates have not been so calm: fixed rates rose sharply from March 2026, and recent market reports put average buy-to-let fixed rates at roughly 5.5% to 6%. Rates move weekly, so treat any figure in an article — this one included — as a snapshot.

Buy-to-let lenders usually assess affordability using rental cover: the expected rent must exceed the mortgage interest by a set margin, commonly 125% to 145%, worked out at a “stressed” rate higher than the one you would actually pay. When rates rise, that test becomes the deciding factor for many purchases, and a mortgage broker is best placed to explain how individual lenders apply it.

Energy Efficiency: A Date at Last

For years, landlords heard that minimum energy standards would tighten without knowing when. In January 2026 the government confirmed its plan: privately rented homes in England and Wales should reach EPC C, measured under new EPC metrics, by 1 October 2030, with the amount landlords are required to spend capped at £10,000 per property (or 10% of the property's value for homes worth under £100,000). Until then, the existing minimum of EPC E still applies. The plan still needs legislation before it becomes law, but it gives anyone buying now a clear date to plan around. The government's response has the full detail.

Demand Has Not Gone Away

Against all of this, the demand picture is steady. The latest English Housing Survey (2024–25) found 4.7 million households in England renting privately — around 19% of all households, a share that has barely moved in a decade. Rents are still rising, too: the ONS reports average UK private rents up 3.8% in the year to August 2026, to around £1,400 a month (about £2,330 in London).

Questions Worth Asking Before Buying a Rental Property

None of this means buy-to-let has stopped working for everyone — it means the sums and the responsibilities have changed. For anyone weighing it up, these are the kinds of questions worth putting to your advisers:

• Do the numbers still work with every cost included? Stamp Duty and its surcharge, legal and survey fees, the 2027 tax rates, Making Tax Digital software or accountancy, the landlord register fee, insurance, maintenance and void periods.
• What would an EPC upgrade cost? A home rated D or below may need work before 2030. A survey and an energy assessment give a far better picture than guesswork.
• Do periodic tenancies suit my plans? Tenants can leave on two months' notice, and regaining possession now depends on legal grounds.
• Is the paperwork in place? Annual gas safety checks where there are gas appliances, an electrical inspection at least every five years, deposit protection, Right to Rent checks — and, once it opens in your region, registration on the new database.
• Personal name or company? The answer depends on income, plans and borrowing, and is a question for a qualified tax adviser.

Our Take

The landlords most likely to find 2026 manageable are those treating a rental property as a long-term business — with proper records, realistic numbers and good advisers around them — rather than a passive investment. The rules have moved a long way in a short time, and they are still moving. The safest assumption is that anything written today, including this article, should be checked against GOV.UK before you act on it.