Buy-to-let investors have more cheap property to choose from than they've had in years, but that doesn't mean the numbers add up. According to This Is Money's Buy to Let coverage, the market remains in the doldrums, with prices low enough that landlords are spoilt for choice on properties they can pick up at bargain prices. The catch is that a cheap purchase price alone no longer makes a deal worthwhile. Landlords now need to hit a specific rental yield threshold just to avoid running the investment at a loss, once higher costs and taxation are factored in.
That's a significant shift from the assumptions many landlords built their portfolios on a decade or more ago, when cheap mortgage rates and lighter tax treatment meant even modest yields could produce a decent return. Today, the maths has changed, and anyone thinking about buying a rental property, or holding on to one, needs to understand why.
Why yield now matters more than price
For years, many buy-to-let investors judged a deal mainly on whether the purchase price looked cheap relative to the area, or whether they expected the property to rise in value over time. Rental income was often treated as a bonus on top of capital growth. That approach is much harder to justify now. With mortgage costs higher than they were, and tax relief on finance costs for landlords much less generous than it used to be, the income a property actually generates each month matters far more than it once did.
A property that looks like a bargain on price can still lose money every month if the rent it commands doesn't clear a certain yield hurdle once mortgage payments, maintenance, insurance, letting agent fees and tax are accounted for. That's the core message from this analysis: cheap isn't the same as viable.
What this means for existing landlords
If you already own rental property, this is a moment to revisit the numbers rather than assume the deal still works the way it did when you bought. Rents have generally been rising, which helps, but so have costs, particularly where a fixed-rate mortgage deal is coming up for renewal and needs to be replaced at a higher rate. Landlords refinancing an existing portfolio, especially those looking to release equity to fund further purchases or cover a shortfall while restructuring finances, may find it useful to look at options such as a buy-to-let refinance designed specifically around rental property rather than a standard residential remortgage.
What it means for prospective buyers
For anyone considering entering the buy-to-let market for the first time, or expanding a portfolio while prices are soft, the message is to run the numbers properly before assuming a low asking price equals a good investment. That means being honest about likely rental income, factoring in realistic void periods, maintenance costs and current mortgage rates, and checking whether the resulting yield clears the threshold needed to actually turn a profit rather than just break even or lose money slowly. A property that's cheap to buy but structurally unable to hit that yield is not a bargain, whatever the asking price suggests.
The bigger picture for the housing market
This isn't just a landlord issue. A buy-to-let market where fewer deals stack up can affect the supply of rental homes available to tenants, and it can also shape which properties come up for sale as some landlords decide to exit rather than refinance at higher cost. Anyone buying a home in an area with a high concentration of rental stock may see knock-on effects in local supply and pricing over time.
