Buying guide

How much can I borrow for a mortgage?

Before looking for a home, you should calculate how much you can borrow and afford for a mortgage.

Gill South
Last updated: 27 August 2025 | 5 min read
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Wondering how much you can borrow for a mortgage? A quick estimate is five times your gross salary. For a more detailed figure, use an online borrowing calculator, but remember each lender has unique criteria.

A 20% deposit is standard and helps secure the best rates. Lenders assess your income, expenses, and credit score—a score over 700 is ideal. Pre-approval provides a good framework, but the final loan amount depends on the property.

Consider using a mortgage broker to navigate different lender policies.

What you’ll learn:

How much can I borrow for a mortgage?

How much of a mortgage can I afford?

How can I borrow as much as possible?

Regular income earners are treated differently to those that are self employed

Will pre-approval on a home loan tell me exactly what I can borrow?

How can my credit rating affect my ability to borrow for a mortgage?

Author

Gill South Gill South
Business and property journalist