Buy to Let Mortgage Basics
Buy to let mortgages are designed for properties you intend to rent out rather than live in. They differ from residential mortgages in several key ways: rates are typically higher, minimum deposits are usually 25% (75% LTV), and affordability is primarily assessed on rental income rather than personal earnings.
Most BTL mortgages are interest only, keeping monthly payments lower and maximising rental yield. The loan is typically repaid when the property is sold, though repayment options are available.
Rental Coverage Requirements
Lenders require the expected rent to cover mortgage payments by a certain margin - typically 125-145% at a stressed interest rate (often 5.5% or higher). For higher-rate taxpayers, the requirement is often 145% due to Section 24 tax implications.
If rental income falls short of coverage requirements, some lenders offer top-slicing - using your personal income to supplement the rental calculation. This can help properties that are marginally under the required ratios.
Tax Considerations
Section 24 tax changes have significantly impacted landlords. Individual landlords can no longer deduct mortgage interest from rental income before calculating tax. Instead, they receive a 20% tax credit. For higher-rate taxpayers, this means paying more tax than before the changes.
This has made limited company ownership more attractive for some landlords, as companies can still deduct mortgage interest as an expense. However, company ownership has its own costs and complexities - seek accountant advice for your specific situation.
Portfolio Landlords
If you own four or more mortgaged properties, you're classified as a portfolio landlord under PRA rules. This triggers additional underwriting requirements - lenders must assess your entire portfolio, including properties held with other lenders.
Portfolio applications require more documentation: details of all properties, values, mortgages, and rental incomes. Some lenders specialise in portfolio cases and offer streamlined processes for experienced investors.
Personal vs Limited Company
The choice between personal and limited company ownership depends on your tax position, portfolio size, and investment strategy. Companies offer tax advantages for higher-rate taxpayers but involve additional costs and administration.
Transferring existing personal properties to a company can trigger stamp duty and capital gains tax, often making it impractical. The company structure typically works best for new purchases. Consult an accountant to determine the best approach for your circumstances.
Getting the Best BTL Deal
BTL mortgage competition has increased in recent years, with more lenders entering the market. Rates, fees, and criteria vary significantly between lenders. Some specialise in portfolio landlords, limited companies, or specific property types.
Working with a broker gives access to deals across the market, including specialist BTL lenders you might not find directly. Complete our form for personalised BTL mortgage advice.