Buy-to-Let in 2026: Is It Still Worth It?

Buy-to-let has long been regarded as a straightforward path to wealth in the UK: buy a property, collect rent, watch the value rise. For investors who got in before 2015, that story has largely played out well. For those considering entering now — or expanding an existing portfolio — the calculation is more nuanced. A series of regulatory and tax changes over the past decade have significantly altered the economics of residential property investment.

This is not an argument against buy-to-let. In the right location, with the right structure, and for the right investor profile, residential property remains a viable component of a diversified portfolio. But it is no longer the obvious, low-risk wealth-builder it appeared to be in the 2000s. Understanding the full picture is essential before committing significant capital.

The Regulatory Changes Since 2015

The UK government has introduced a series of measures specifically targeting private landlords, particularly those with mortgaged portfolios:

Additional Stamp Duty Land Tax (SDLT) surcharge (introduced 2016, increased October 2024): Purchases of additional residential properties — including buy-to-let — carry a 5 percentage point surcharge on top of standard SDLT rates (raised from 3% to 5% on 31 October 2024). On a £300,000 property, this adds £15,000 to acquisition costs. On a £600,000 property, around £30,000. The surcharge applies to all individuals buying a second or subsequent residential property, including overseas properties in some circumstances. It materially increases the entry cost and the break-even period for any buy-to-let investment.

Section 24 mortgage interest restriction (phased in 2017-2020, now fully effective): Before 2017, landlords could deduct their full mortgage interest from rental income before calculating taxable profit. This made mortgaged buy-to-let highly tax-efficient. Under Section 24, individual landlords (not companies) can no longer deduct mortgage interest as an expense. Instead, they receive a basic rate (20%) tax credit on mortgage interest paid. For higher and additional rate taxpayers, this has dramatically increased the tax payable on rental income. In some cases, landlords are paying income tax on notional profit that barely covers their mortgage — and in some cases on nominal losses.

EPC requirements: The government has announced plans requiring rental properties to achieve at least Energy Performance Certificate (EPC) rating C before being let (from 2028 for new tenancies, potentially extending to all tenancies by 2030 — though the legislation is not yet finalised as of 2026 and timelines may shift). Upgrading a property from EPC rating D or E to C can cost £5,000-£20,000+ depending on the property. For portfolio landlords with many older properties, the capital expenditure required is significant.

Renters' Rights Act (2025): The abolition of Section 21 "no fault" evictions makes it harder for landlords to regain possession of a property except for specific statutory grounds (rent arrears, property sale, own occupation). This increases landlord risk around problem tenancies and extends the time and cost of recovering possession.

Devolved rent controls: Scotland has introduced emergency rent controls. Wales has consulted on rent control measures. England has not enacted rent controls, but the political environment remains uncertain.

The Yield Analysis

Gross rental yield is the annual rent expressed as a percentage of the purchase price. Across UK residential property, gross yields typically range from around 4% in prime London and commuter-belt areas to 6-8%+ in northern cities such as Manchester, Leeds, Sheffield, and Liverpool.

Net yield — what the landlord actually receives after costs — is a very different number:

Typical annual costs for a mortgaged buy-to-let:

• Mortgage interest: 4-5% of the outstanding loan (at current rates)
• Letting agent fees: 8-15% of rent
• Maintenance and repairs: 1-2% of property value per year on average
• Landlord insurance: 0.2-0.5% of property value
• Ground rent / service charge (leasehold flats): variable
• Void periods: plan for 1-2 months/year unoccupied = 8-17% rent loss

On a property generating a 6% gross yield with a 65% loan-to-value mortgage at 4.5% interest, and typical costs as above, the net yield before income tax could be 1-3%. After income tax at 40% (under Section 24, higher rate landlords pay tax on gross rent above their basic rate credit on interest), the post-tax return on invested equity may be marginal or negative.

This analysis changes significantly for:

• Cash buyers (no mortgage cost, so net yield is much closer to gross yield minus expenses)
• Properties in high-yield markets (5-8% gross yield starts from a better position)
• Company ownership structures (companies can still deduct mortgage interest fully, paying corporation tax on actual profit — but company ownership has its own costs and complexities)

The Capital Growth Argument

The yield argument alone does not capture the full picture. UK residential property has historically delivered capital growth of approximately 3-5% per year in real terms over the long run, and significantly more in certain markets (prime London in the 2000s; northern cities in the 2010s and early 2020s).

For investors who can tolerate short-term yield compression and are playing a long-term capital appreciation game, the leverage inherent in a mortgaged buy-to-let means that even modest capital growth on the underlying property generates significant returns on the equity invested.

A £300,000 property purchased with a £100,000 deposit and a £200,000 mortgage that appreciates 3% annually is worth approximately £403,000 after 10 years. The capital gain of £103,000 on an initial equity of £100,000 represents a 103% return on the deposit (ignoring tax, costs, and the cost of funding the cash-flow gap in the interim). Gearing amplifies both gains and losses.

However, this argument requires confidence in continued capital appreciation — which varies enormously by location, property type, and economic conditions — and the ability to service the mortgage during periods when yield alone does not cover costs.

For Non-Resident Investors

UK buy-to-let becomes materially more complex for non-UK residents:

• Non-Resident Landlord Scheme (NRLS): Letting agents must deduct 20% withholding tax from rent paid to non-resident landlords unless the landlord is approved for gross rental payments by HMRC. Approval is straightforward to obtain but requires registration and timely tax filing.
• Additional SDLT surcharge: Non-resident buyers pay a further 2% SDLT surcharge on top of the existing 5% additional-dwelling surcharge — a total of 7% above standard residential rates.
• Currency risk: Rents received in sterling may fluctuate in purchasing power for non-sterling-based investors.
• Administration complexity: Managing a UK property from abroad requires reliable local agents and accountants.

For non-resident investors, the economics must be modelled carefully before purchase, incorporating all acquisition costs, the ongoing NRLS compliance costs, and currency effects.

Alternatives to Direct Buy-to-Let

For investors attracted to UK property but deterred by the management burden, regulation, or liquidity, there are alternatives:

UK Property REITs: Listed real estate investment trusts provide diversified property exposure with full stock market liquidity, no management responsibility, and tax-efficient distributions. REIT returns will not mirror specific individual properties but offer a genuine alternative to direct ownership.

Commercial property within a SIPP: Commercial property — retail, office, industrial — can be held directly in a SIPP, receiving all the pension tax benefits. Residential property cannot be held in a SIPP. For business owners who own or lease their own business premises, commercial property in a SIPP is a powerful planning tool.

Student accommodation and serviced apartments: Higher-yielding specialist sectors that often involve a management company operating the property on a commercial basis. Can provide better yields than standard residential without full landlord responsibility.

The Verdict

Buy-to-let is not dead — but it is no longer simple. For cash buyers in high-yield locations who are basic rate taxpayers or who are investing through an appropriate structure, the risk-adjusted returns can still be positive and the diversification benefit real. For higher rate taxpayers with mortgaged portfolios in low-yield areas, the post-tax, post-cost return is frequently negative, and the regulatory risk is a further headwind.

As with all investments in this field, values can fall as well as rise, rental income is not guaranteed, and past market performance is not a reliable guide to future returns.

How Global Investments Can Help

Global Investments helps clients evaluate property investment alongside the full spectrum of investment alternatives — assessing net yields, tax efficiency under different ownership structures, capital growth scenarios, and how property fits within a diversified wealth plan. If you are reviewing an existing buy-to-let portfolio or considering a new property investment, our advisers can model the full financial picture and help identify whether direct ownership, a company structure, a REIT, or a different asset class entirely best meets your objectives.