Buy-to-Let & Investment Mortgages.

Buy-to-let mortgages are designed specifically for landlords and property investors buying residential property to let to tenants for commercial gain. Because of the additional risk, they tend to be more expensive — interest rates are usually higher and lenders typically require a larger deposit.

They're only suitable for landlords and investors, and are generally only available to those who already own a property and can provide a significant cash deposit.

Unlike residential mortgages — which are based on household income — buy-to-let lending is based largely on the rental income the property can be expected to generate. Most lenders also have a minimum personal income requirement (often around £25,000 per annum).

Lenders combine a standard Loan-to-Value (LTV) calculation with an expected gross yield assessment. As a rule of thumb, rental income usually needs to be at least 125% of the mortgage repayments — so a £1,000 monthly repayment would typically require rent of around £1,250. New-build property can be viewed as higher risk, and some lenders apply a higher multiple in those cases.

Most buy-to-let lenders expect a minimum deposit of around 25% of the property value — anything less tends to mean higher fees and higher rates. Established landlords with strong portfolios may unlock better terms at lower deposit levels.

Arrangement fees on BTL mortgages are typically higher than on residential mortgages, often ranging from £700 to £3,000, and should always be factored into overall project costs. Interest rates are also generally higher than residential rates.

Interest-only mortgages — where you only pay the interest each month and repay the capital at the end of the term (typically 20–30 years) — are very popular with buy-to-let investors. They improve monthly cash flow, but a clear plan for repaying the capital at the end of the term is essential.

UK landlords have benefited from low rates and strong yields in recent years, and increased letting regulation has helped reduce fraud. But investors should always plan for less favourable market conditions.

Rental income remaining after mortgage costs and allowable expenses is typically taxable at the prevailing rate. Tax treatment for landlords has changed significantly in recent years — we always recommend speaking to a qualified property tax specialist before committing to a purchase.