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 annual income, but lenders will conduct a detailed assessment of your finances.

Typically, a 20% deposit is needed to secure the best rates and avoid fees. Lenders review your income, expenses, and credit score to determine affordability. Getting pre-approval provides a strong borrowing framework, though the final amount depends on the specific property's valuation and type. A mortgage broker can help you navigate different lender criteria.

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