Skip to main content
News
Buy to Let

Buy to Let Mortgages: A Complete Investor’s Guide

Complete guide to buy to let mortgages for property investors. Learn about affordability, deposits, and investment strategies.

By David Sampson
29 September 2025
1 min read
UK buy to let mortgage article image for Buy to Let Mortgages A Complete Investor s Guide

Written by David Sampson for Mortgage118. Last updated 11 May 2026. Reviewed against our editorial standards. Editorial standards.

TL;DR

  • Learn about affordability, deposits, and investment strategies..
  • A buy to let mortgage is a loan designed for purchasing property that will be rented out to tenants, rather than used as your primary residence.
  • Our specialist brokers can help you find the right mortgage and investment strategy.*

# Buy to Let Mortgages: A Complete Investor’s Guide

Buy to let mortgages enable investors to purchase properties specifically for rental income. This comprehensive guide covers everything you need to know.

## What is a Buy to Let Mortgage?

A buy to let mortgage is a loan designed for purchasing property that will be rented out to tenants, rather than used as your primary residence.

## Key Differences from Residential Mortgages

### Affordability Assessment
– **Rental income** is the primary factor
– **Personal income** secondary consideration
– **Stress testing** at higher interest rates
– **Minimum rental coverage** typically 125-145%

### Deposit Requirements
– **Higher deposits** usually required (20-25%)
– **Lower LTV ratios** available
– **Specialist products** for experienced investors

*Ready to start your buy to let journey? Our specialist brokers can help you find the right mortgage and investment strategy.*

About David Sampson

David Sampson writes about the UK mortgage market for Mortgage118, covering specialist lending, market trends, and practical advice for borrowers. All content is reviewed for accuracy against FCA guidelines and current market data.

1.0×