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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A quick estimate for your mortgage borrowing power is five times your gross salary. However, lenders will conduct a detailed assessment of your income, expenses, and credit score to determine your final affordability.

Having a 20% deposit is crucial for securing the best rates. While pre-approval provides a strong indication of your borrowing capacity, the final loan amount also depends on the specific property. Using online calculators and checking your credit history are key first steps.

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