Mortgages & Property

Buy-to-Let Tax Changes UK 2026: Is Landlording Still Worth It?

SYM

Buy-to-let investment has faced a sustained assault from tax changes since 2015. Section 24 removed mortgage interest relief, the stamp duty surcharge added 3–5% upfront, Capital Gains Tax rates for property remain higher than other assets, and new landlord regulations have increased compliance costs. Despite this, rental property remains viable for many — but the numbers look very different than a decade ago.

Section 24: The Mortgage Interest Relief Change

The most significant change: since 2020, landlords can no longer deduct mortgage interest from rental income before calculating their tax bill. Instead, basic-rate tax relief (20%) is given as a credit. For higher-rate taxpayers, this is a dramatic change — they previously deducted interest at 40% relief. A landlord with £15,000 rental income and £12,000 mortgage interest now pays tax on £15,000 (minus other allowable expenses), with a 20% tax credit for the interest. This can push basic-rate taxpayers into higher-rate territory and make previously profitable properties loss-making.

Stamp Duty Surcharge and Transaction Costs

Additional property purchases (buy-to-let, second homes) attract an extra 3% stamp duty surcharge on top of standard rates. From October 2024 this increased to 5%. On a £200,000 buy-to-let property: standard SDLT would be £1,500; with the surcharge it's £11,500. This dramatically increases the upfront cost and hurts the return on investment, particularly for lower-value properties where rental yields are already modest.
  • •5% surcharge on all additional property purchases from Oct 2024
  • •£200k BTL: £11,500 total SDLT vs £1,500 for primary residence buyer
  • •Higher SDLT makes it harder for properties to 'break even'
  • •Factored into yield calculations: adds ~2–3% to required gross yield

Capital Gains Tax on Rental Property

When you sell a buy-to-let property, CGT applies to the gain (sale price minus purchase price and improvement costs). CGT rates for residential property in 2025/26: 18% for basic-rate taxpayers and 24% for higher-rate taxpayers. You have a £3,000 annual CGT allowance. Private Residence Relief exempts your primary home but not buy-to-let. Lettings relief was largely removed in 2020. You must report and pay CGT within 60 days of completion.
Should I hold buy-to-let in a limited company?+

For new landlords or those building a portfolio, a limited company structure can reduce tax: mortgage interest remains fully deductible, and you pay Corporation Tax (25%) rather than income tax (up to 45%). However, extracting profits involves further taxes, and higher mortgage rates typically apply to company borrowing. Get specialist tax advice before deciding — it depends heavily on your personal circumstances.

Is buy-to-let still worth it in 2026?+

In the right location with a sufficient gross yield (typically 6%+ to make the numbers work after all costs), yes. But the days of property 'printing money' for leveraged private landlords are over for many. Each property must be modelled carefully including all taxes, maintenance, voids, and compliance costs.

Making the Numbers Work

For buy-to-let to work financially in 2026, you need: a gross rental yield of 6%+ (especially with mortgages at 4–5%), a location with sustainable tenant demand, realistic void period allowance (1–2 months/year), full cost accounting (letting agent fees, maintenance, insurance, licensing compliance costs), and the post-Section 24 tax calculation modelled for your income level. Properties in northern cities (Manchester, Leeds, Liverpool, Sheffield) often offer better yields than London, which has higher prices relative to rents.
#buy to let#landlord tax UK#Section 24#rental income tax#property investment

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