Mark Langshaw
Author: Mark Langshaw
Lee Trett
Peer-reviewed by: Lee Trett
Updated 22 January 2026

A Quick Overview on Buy to Let Mortgages

A buy-to-let mortgage is a type of mortgage you can use to buy property that you intend to let out to tenants. They work similarly to residential mortgages but the way affordability is assessed sets them apart. Rather than looking at your personal income, buy-to-let lenders will work out your maximum borrowing based on the property’s projected rental income.

The main differences between buy-to-let and residential mortgages are as follows:

  • Buy-to-let mortgages are for buying property to let out

  • Deposit requirements are higher for buy-to-let

  • Interest rates are generally higher

  • Most buy-to-let mortgages are interest-only

  • The majority of buy-to-let mortgages are unregulated

  • You pay a higher stamp duty rate

Read Our Comprehensive Buy to Let Mortgage Guide

Deposit requirements and other criteria

To get a buy-to-let mortgage, you often need landlord experience, strong credit history and a deposit of 15-25% of the property’s value. Putting down extra deposit funds will increase the number of available lenders and deals, as shown in the table here.

Loan-to-Value (LTV) Ratio

Approximate Number of Willing Lenders

90-100%

None - seek professional advice

80-90%

30

70-80%

More than 60

60-70%

More than 70

50-60%

More than 70

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Mortgage Calculators & Tools

FAQs

Yes, usually. While buy-to-let lending is primarily based on the rental income the property will generate, many lenders still require you to have a minimum personal income (often around £20,000 and £25,000 per year) to ensure you can cover void periods or unexpected costs.

However, there are specialist lenders who have no minimum personal income requirements, provided the rental figures stack up.

Couple holding house key

Find a better buy-to-let mortgage deal on Money Helpdesk

THINK CAREFULLY BEFORE SECURING OTHER DEBTS AGAINST YOUR HOME. YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON A MORTGAGE OR ANY OTHER DEBT SECURED ON IT.

IF YOU ARE THINKING OF CONSOLIDATING EXISTING BORROWING YOU SHOULD BE AWARE THAT YOU MAY BE EXTENDING THE TERMS OF THE DEBT AND INCREASING THE TOTAL AMOUNT YOU REPAY.

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