Buying guide

Revolving credit mortgages: what are they & how do they work?

Everything you need to know about this useful but potentially expensive home loan feature

Ben Tutty
Last updated: 29 August 2025 | 5 min read
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A revolving credit mortgage is a flexible home loan feature that acts like a large overdraft, allowing you to deposit and withdraw funds. You only pay interest on the outstanding balance, not the full limit.

This can help you pay your mortgage off faster with unlimited extra repayments. However, it requires strong financial discipline to avoid overspending and typically has a higher variable interest rate.

While powerful for disciplined savers, it can be costly otherwise. Always seek advice from a mortgage broker.

What is a revolving credit mortgage?

The benefits of a revolving credits

May help you pay your mortgage off faster

Extra flexibility

Revolving credits can be great but they can be expensive if they're not managed well.

Lower interest rate than a bank overdraft

Only pay interest on money you’ve used

The drawbacks of revolving credits

You need to be disciplined

They’re expensive

Make sure you do your homework before applying for a revolving credit.

Making a revolving credit work for you

Get expert advice before signing on the dotted line

Author

Ben Tutty Ben Tutty
Content Writer