Buy-to-Let vs REIT: UK Landlord Tax Compared 2025/26

Quick answer

For a UK higher-rate taxpayer with £200,000 of spare capital, the simplest way to gain property exposure in 2025/26 is to buy a basket of UK REITs inside a Stocks & Shares ISA. The tax friction is essentially zero. Direct buy-to-let can still produce stronger returns thanks to mortgage leverage and capital growth, but only if you accept Section 24, the 5% SDLT surcharge, ongoing management work, and 24% CGT on the exit.

How each vehicle is taxed in 2025/26

Direct buy-to-let

UK REIT

Worked example — £200,000 of capital, 5-year horizon

Scenario A — Direct BTL with 75% LTV mortgage

Acquire £200,000 property in a regional UK city with £50,000 deposit and £150,000 interest-only BTL mortgage.

• SDLT (additional property, England, FTB N/A): 0% to £125k + 2% to £250k + 5% surcharge on £200k. Effective SDLT bill: £1,500 + £10,000 surcharge = £11,500.
• Other purchase costs (legal, survey, broker): ~£3,500.
• Total in: £50,000 deposit + £15,000 costs = £65,000 of capital deployed.
• The remaining £135,000 of the £200,000 capital is available — assume it sits in a high-rate savings account at 4% (£5,400/yr taxable interest).

Income (year 1, gross yield 6%):

• Rent: £12,000.
• Mortgage interest @ 5%: £7,500.
• Maintenance, insurance, letting fees: £1,800.
• Pre-tax cash profit: £2,700.
• Taxable rent (Section 24 — interest not deductible from income): £12,000 − £1,800 = £10,200.
• Higher-rate tax: 40% × £10,200 = £4,080.
• Less 20% mortgage interest credit: 20% × £7,500 = £1,500.
• Net tax bill: £2,580.
• Net cash after tax: £120.

Plus capital growth at 3% real = £6,000/year.

5-year cumulative pre-CGT gain: ~£32,000 property growth + small positive cash flow. Then 24% CGT on the £29,000 above the £3,000 allowance ≈ £6,960. Net post-tax 5-year outcome: ~£28,000 on £65,000 deployed = roughly 43% total return — driven by leverage on the asset.

Scenario B — UK REITs inside an ISA

£200,000 invested across UK REIT shares. Assuming £20,000/year ISA cap, it takes 10 years to shelter the full amount — but for this example assume the investor and partner can each subscribe £20,000/year, so £200,000 is sheltered in year 5.

• Average total return (long-run UK REIT history): 5–7% net of fees, all tax-free inside ISA.
• 5-year compounded return at 6%: roughly £67,388 of growth on £200,000.
• Net post-tax 5-year outcome: ~£67,388 — and the underlying capital is fully liquid.

The headline number favours REITs because the BTL number is dragged down by tax friction, SDLT and the smaller £65,000 capital base. If you compare BTL leveraged on £200k of capital with three properties (riskier, more concentrated), the BTL number can pull ahead — at the cost of more time, risk and tax exposure.

When direct BTL still wins

1. You can buy without a mortgage. Section 24 evaporates. Yields net of tax are competitive.
2. You will hold for decades. Capital growth + amortisation of the mortgage from rent makes long-hold BTL very efficient.
3. You operate as a limited company. Section 24 doesn't apply; corporation tax (currently 19–25%) plus dividend tax replaces the headline marginal rate.
4. You want a local-knowledge edge — buying below market, refurbishing, or in an under-rated postcode.
5. You're willing to be a landlord. Tenant management, EPC obligations (minimum C from 2030), gas safety, deposit schemes — real work.

When REITs win

1. You want liquidity — sell daily on the stock exchange.
2. You want diversification across hundreds of buildings — offices, logistics, residential, healthcare.
3. You have ISA / SIPP allowance to use — entirely tax-sheltered.
4. You don't want to manage tenants or repair boilers.
5. You have less than £100k of capital — single-property BTL becomes risky from a diversification standpoint.

The hybrid play

A common approach for UK higher-rate taxpayers:

• One paid-off rental for steady inflation-linked income and a real asset.
• ISAs and SIPPs maxed every year holding a global REIT index alongside equities and bonds.
• Limited company for any new BTL acquired with leverage, to escape Section 24.

This pulls leverage, growth, liquidity and tax efficiency from different vehicles instead of relying on one.

Try the calculator

Related reading:

• Buy-to-Let Viability UK 2026
• SDLT Second Home 5% Surcharge
• CGT on a Second Home or BTL Property

Sources

• HMRC: Property income manual — Section 24
• HMRC: Stamp Duty Land Tax: residential property rates
• HMRC: Capital Gains Tax on UK residential property
• gov.uk: REITs — taxation overview