Section 24 and income
Buy-to-let tax changes explained: 2016 to 2028
A timeline of landlord tax changes since 2016: the SDLT surcharge, Section 24, CGT rates, 60-day reporting, FHL abolition, Making Tax Digital and the 2027 property income rates.
Since 2016 landlords have faced a surcharge on buying, a cap on mortgage interest relief, higher tax on selling, faster reporting and the end of the holiday let regime, with higher property income tax rates due in April 2027. This article sets out the main changes in date order, and what each means now.
The timeline
| Date | Change | What it means now |
|---|---|---|
| 1 April 2016 | 3% SDLT surcharge on additional properties | Now 5% |
| 6 April 2016 | Wear and tear allowance replaced by relief for actual replacements | Claim like-for-like costs only |
| 2017/18 to 2020/21 | Section 24 phased in | No interest deduction; 20% credit |
| 6 April 2020 | Final period of private residence relief cut to 9 months | Lettings relief limited to shared occupation |
| 6 April 2020 / 27 Oct 2021 | 30-day CGT return, extended to 60 days | 60 days from completion |
| 6 April 2024 | Higher CGT rate on residential property cut from 28% to 24% | 18% and 24% |
| 31 Oct 2024 | SDLT surcharge rises from 3% to 5% | 5% on top of standard rates |
| 1 April 2025 | SDLT nil-rate band reverts to £125,000 | 0% on the first £125,000 |
| 6 April 2025 | Furnished holiday lets regime abolished | Taxed like other lets |
| 6 April 2026 | Making Tax Digital for income above £50,000 | Quarterly updates |
| 6 April 2027 | Property income rates 22%, 42%, 47%; MTD at £30,000 | Credit rises to 22% |
| 6 April 2028 | MTD at £20,000 | More landlords in scope |
Buying: the SDLT surcharge
The surcharge started at 3% on 1 April 2016. It rose to 5% for transactions on or after 31 October 2024. It is added to every band, including the nil-rate band, so a £300,000 purchase by someone who already owns a property now costs £20,000: £5,000 at the standard rates and £15,000 for the surcharge. The same purchase cost £14,000 in 2016. The nil-rate band also fell back to £125,000 from 1 April 2025. See SDLT for property investors.
Holding: Section 24
Section 24 removed the deduction for mortgage interest in stages: 75% in 2017/18, 50% in 2018/19, 25% in 2019/20 and none from 2020/21. You get a 20% credit instead.
A higher-rate landlord with £20,000 of rent, £2,000 of other costs and £8,000 of interest paid £4,000 on £10,000 of profit before Section 24. In 2026/27 the tax on £18,000 is £7,200 less a £1,600 credit, which is £5,600. In 2027/28, with the 42% rate and 22% credit, it is £7,560 less £1,760, which is £5,800. This is an illustration, not a client example. See Section 24 and our mortgage interest article.
The £1,000 property allowance, introduced in 2017/18, remains an alternative to claiming expenses for landlords with very small rental income.
Selling: CGT and reporting
The residential rate was 28% for higher-rate taxpayers until it fell to 24% from 6 April 2024. The annual exempt amount has fallen to £3,000. Reporting has sped up: from April 2020 a UK resident had 30 days to report and pay, and from 27 October 2021 it is 60 days from completion.
Relief for letting also fell: the final period of private residence relief was cut to nine months from April 2020, and lettings relief now applies only where the owner shared the home with the tenant. See capital gains tax on rental property.
Holiday lets
The furnished holiday lettings regime ended from 6 April 2025. Interest relief is now restricted, capital allowances stop for new spending, and BADR, rollover and gift relief no longer apply to new disposals, subject to transitional rules. See furnished holiday lets.
Making Tax Digital
Making Tax Digital for income tax applies to landlords by reference to gross property and self-employment income: above £50,000 from April 2026, above £30,000 from April 2027 and above £20,000 from April 2028. Quarterly updates are sent through software. Property held in a company is outside it.
April 2027: new property income rates
Finance Act 2026 sets property income rates of 22%, 42% and 47% from 6 April 2027. The Section 24 credit rises to 22%. Property income will also be taxed after your other income, so your allowances are used against salary or pensions first. Companies are not affected.
What to do with all this
- Check your structure against today's rules. A set-up that worked in 2015 may not now.
- Model April 2027. Our Section 24 calculator shows the effect.
- Keep records for sales. Costs, improvements and valuations all matter for the 60-day return.
- Plan before you buy or sell. SDLT, CGT and timing are all decided at the start.
Common misunderstandings
- "Section 24 only affects higher-rate landlords." It affects anyone whose taxable income goes over a threshold once interest is added back.
- "The 60-day rule applies to all sales." It applies to UK residents selling UK residential property where tax is due. Non-residents have to report every disposal of UK property.
- "The 5% surcharge only applies to buy-to-lets." It applies to any additional residential purchase by an individual, including a second home.
- "Holiday lets are still special." Not since April 2025.
- "A company avoids all the changes." It avoids Section 24 and the 2027 property income rates, but not the SDLT surcharge, and getting profits out is taxed again.
How the changes add up
Taken together, the changes mean that the tax cost of owning a mortgaged property personally has risen at each stage, and the tax cost of moving or selling one has risen too. A landlord who bought in 2014 might have paid no surcharge, deducted all of the interest and reported a sale on the tax return. The same purchase today attracts a 5% surcharge and no interest deduction, and a sale needs a return within 60 days. That is why many landlords now review ownership before they buy again, whether through a company, a spouse or a different mix of properties. The right answer depends on income, borrowing and succession plans, not on the headline.
Talk to us
If you are not sure how the changes affect your portfolio, book a call. We will review your position on a fixed fee agreed upfront.
This article is general information, not advice. Tax rules change and their effect depends on your circumstances. Please speak to us before acting.
