Is Buy-to-Let Still Worth It in 2026?
What Landlords Need to Weigh Up

The Current Landscape

Buy-to-let in 2026 is a fundamentally different proposition from buy-to-let in 2015. Three structural changes have reshaped the economics: the restriction of mortgage interest relief, interest rate rises from historically low levels, and the Renters' Rights Act compliance framework. Against these, rental demand has remained exceptionally strong and average rents have continued to rise.

The result is a market that is increasingly bifurcated. Landlords with low or no leverage, in high-demand areas, who manage tenancies professionally continue to generate meaningful returns. Landlords with high mortgage costs, in low-demand areas, or with significant compliance deficits face a much harder environment.

Tax — The Biggest Change

The restriction of mortgage interest relief — phased in between 2017 and 2020 — remains the single most significant financial change affecting BTL landlords. Under the old system, landlords could deduct all mortgage interest from rental income before calculating profit. Under the current system, higher-rate taxpayers receive only a 20% basic rate credit — meaning a landlord paying 40% tax receives relief at only half the rate they previously did.

The practical effect: a landlord with a heavily leveraged portfolio paying higher-rate income tax may show a tax profit on a property where they are actually making a cash loss after mortgage costs. This pushes some landlords into losses after tax even where the property generates positive cash flow before it.

Additional factors: the 3% Stamp Duty surcharge on additional residential properties increases the entry cost for new purchases. The capital gains tax annual exempt amount reduction to £3,000 increases the tax cost of exiting.

Mortgage Rates

BTL mortgage rates rose sharply from historically low levels in 2022-23 and have partially stabilised since. In early 2026, typical BTL fixed rates for new purchases or remortgages sit in a range that represents a significant increase from the sub-2% environment many landlords fixed into before 2022.

The impact on landlords varies considerably. Landlords who fixed at low rates before 2022 are coming off those deals gradually. Landlords who are unencumbered are unaffected. New purchasers face current market rates which, combined with current purchase prices in many areas, compress yields considerably compared to purchases made five to ten years ago.

Compliance Costs Under the Renters' Rights Act

The Renters' Rights Act 2025 added to the compliance cost of letting but not to an extent that is prohibitive for a well-run portfolio. The additional ongoing costs include:

• PRS Ombudsman registration — expected £50–£100 per landlord per year (scheme not yet fully operational)
• PRS Database registration — cost not yet confirmed, expected per-property fee
• Additional documentation time — Section 13 rent increase process, pet request management
• Potential pet damage insurance requirement — if tenants request pets

Set against these, the existing compliance costs — annual gas safety checks, five-yearly EICR, EPC validity — remain unchanged. For a landlord already running compliant tenancies, the marginal cost increase from the Renters' Rights Act is real but not transformative.

Rental Demand in 2026

Rental demand across England remains significantly higher than supply in most areas. The combination of constrained housing supply, deposit barriers to homeownership, and high mortgage rates for first-time buyers has kept rental demand elevated. Average time to let a property in most English cities is measured in days, not weeks.

This demand environment — and its effect on rents — is one of the most significant factors supporting BTL returns in 2026. Landlords in high-demand areas with quality properties are achieving strong occupancy rates and rent growth. Landlords in low-demand areas with older stock face a different picture.

Running the Numbers

A basic yield calculation for a landlord considering the current environment:

• Gross yield = Annual rent ÷ Property value × 100
• Net yield = (Annual rent − annual costs) ÷ Property value × 100

Annual costs to include in a net yield calculation: mortgage interest, management fees (if applicable), maintenance reserve, void allowance, insurance, gas safety check, EICR amortised over 5 years, compliance costs, and any letting agent fees.

For a leveraged landlord, after all costs and after tax — particularly at higher income tax rates — the net return on equity deployed needs to be compared against alternative investments at similar risk levels. This calculation varies significantly by individual circumstances and is exactly why independent financial advice is important before making a purchase decision.

Who It Works For Now

Based on the current landscape, BTL tends to work best for:

• Unencumbered landlords with no or low mortgage debt
• Basic-rate taxpayers where the mortgage interest restriction has less impact
• Landlords in high-demand areas with strong rental growth
• Portfolio landlords operating through a limited company structure (for whom mortgage interest relief rules differ)
• Long-term investors focused on capital growth over a decade or more rather than immediate yield

It tends to be most challenging for heavily leveraged higher-rate taxpayers in low-demand areas — particularly those approaching remortgage on deals fixed at historically low rates.

Frequently Asked Questions

Is a limited company structure better for BTL now?

Limited company ownership allows mortgage interest to be deducted as a business cost, which avoids the restriction that applies to individual landlords. Corporation tax is paid on profits rather than income tax. However, extracting profits from the company involves additional tax, the company structure has higher mortgage rates and fewer lenders, and there are additional accounting and legal costs. Whether it is beneficial depends entirely on individual circumstances — this requires specialist tax advice, not a general guide.

Has the government said anything about further BTL tax changes?

As of April 2026, there are no confirmed further changes to BTL taxation beyond those already in place. The capital gains tax rate for residential property remains at 18% (basic rate) and 24% (higher rate) following the change in the October 2024 Budget. Stamp Duty Land Tax rates for additional properties remain at 5% surcharge above standard rates.