Islay Robinson explores why UK buy-to-let yields have reached a 15-year high, examining regional differences, rising landlord exits and why financing costs, taxation and property type matter when assessing the true return on a rental investment.

Average gross buy-to-let yields reached 7.22% in the third quarter of 2026, their highest level since the first quarter of 2011, according to a specialist buy-to-let lender’s analysis of its own mortgage offer data. The figure rose from 7.00% in the previous quarter and 6.94% a year earlier.

At first glance, that looks encouraging for property investors. The East Midlands recorded the highest regional yield at 8.10%, followed by the North East at 8.02% and Scotland at 7.95%. Greater London was lowest at 5.79%, reflecting the higher property values against which rental income is measured. Houses in multiple occupation (HMOs) recorded an average gross yield of 8.80%.

But I would be careful about treating a higher yield as a straightforward sign that buy-to-let is becoming more attractive. The number that matters to a landlord is what remains after financing, maintenance, management, periods without tenants and tax.

In a recent survey of 668 landlords, SpareRoom reported that 27% of landlords in England planned to leave the sector entirely, while a further 36% intended to reduce their portfolios. Fewer than 4% planned to expand. These are stated intentions rather than completed sales, but they point to a market in which many landlords are reconsidering their position.

I see the rising yields as part of the same picture. Rental demand has remained firm in many areas, while property values have grown more slowly. When rental income holds up relative to property values, the gross yield rises. That does not necessarily mean landlords are making more profit, particularly when borrowing costs and operating expenses remain significant.

Location and Property Type Matter

The national average conceals substantial differences between locations and types of property. HMOs recorded the strongest average gross yield at 8.80%, although this was 0.06 percentage points lower than the previous quarter. The figure was still 0.37 percentage points higher than a year earlier.

Multi-unit blocks averaged 7.36%, flats 6.66% and terraced houses 6.46%. Multi-unit blocks recorded an annual increase of 0.34 percentage points.

London's lower yield is not, on its own, evidence that every London investment is a poor proposition. Capital values are generally higher, which can reduce the rental yield relative to the purchase price. Investors may also have different objectives, including long-term capital growth, although neither rental income nor property values are guaranteed.

The important question is whether the individual property works financially. A higher-yielding HMO may involve different management responsibilities, compliance requirements, maintenance costs and tenant turnover from a single flat. A lower-yielding property may have a different risk profile. Comparing headline percentages without accounting for these differences can give a misleading impression.

Gross Yield Is Only the Starting Point

Gross yield measures annual rental income as a percentage of a property's value before expenses. Net yield takes account of relevant operating costs, giving investors a more useful view of the property's performance. Borrowing costs, tax and the way a property is owned can further affect the overall return.

Tax is particularly important for landlords reviewing their plans. Following changes announced at the 2025 Budget, separate property income tax rates of 22%, 42% and 47% are scheduled to apply from April 2027, subject to the applicable rules and allowances. The Scottish Parliament and the Senedd have powers to set their own property income tax rates, so rates for landlords in Scotland and Wales may differ. Landlords should review the official HMRC guidance on property income tax changes and speak to a qualified tax adviser about their own circumstances.

The Budget on 28 October may also bring announcements relevant to landlords. Until any changes are confirmed, it would be unwise to make investment decisions based on speculation about future tax policy.

For portfolio landlords, the comparison should therefore be based on the likely net outcome, not simply the gross yield. Financing costs, tax treatment, property expenses and the amount of capital tied up in the investment all need to be considered together.

Financing Can Change the Outcome

Lenders assess buy-to-let applications using their own criteria, including rental income, borrowing costs and the property's suitability as security. The rent may need to cover the mortgage payment by a specified margin, and the calculation can differ depending on the lender, ownership structure and type of property.

That means two landlords buying similar properties may not receive the same lending terms. An HMO in the East Midlands and a flat in London can present very different cases, while the structure of an existing portfolio may influence the options available to an investor.

The questions I hear most often concern structure: whether to hold property personally or through a company, how to refinance when part of a portfolio is being sold, and how lenders assess the borrower's wider financial position. These are not questions that can be answered by looking at yield alone.

Where a landlord is considering a sale, refinancing or further acquisition, it is worth discussing the proposed structure with a lender and tax adviser early. The right approach depends on the individual's circumstances, and a company structure does not automatically produce a better outcome. Lending remains subject to underwriting, valuation and the lender's criteria. Landlords considering their options can explore buy-to-let mortgage solutions and discuss their circumstances with a specialist.

What Could This Mean for Buyers and Sellers?

If more landlords decide to exit, some properties and portfolios will come to market. That may create opportunities for buyers who understand the local rental market and have suitable finance in place. However, planned exits do not automatically translate into a surge in completed sales, and a property's investment potential still depends on its price, rental prospects and costs.

For sellers, certainty can matter as much as the headline offer. A buyer who has discussed financing with a lender and understands the likely requirements may be better placed to progress than one whose offer depends on unresolved funding or an uncertain valuation. Even then, lender terms are not a guarantee that a transaction will complete.

For buyers, preparation means assessing the property's likely net return, understanding the costs of ownership and obtaining appropriate financing guidance before committing. A high gross yield can be a useful starting point, but it is not a substitute for due diligence.

With property income tax changes scheduled for April 2027 and the Budget approaching, landlords may wish to review their position with appropriate advisers ahead of the changes. The most useful conversations are those that bring the financing and tax implications together, while recognising that the final decision must reflect the investor's own objectives, resources and appetite for risk.

Important Information

Your property may be repossessed if you do not keep up repayments on your mortgage.

This article is for general information only and does not constitute personal financial, mortgage, tax or investment advice. Buy-to