iSmart Finance Group
Back to Blog
Education5 min read

Fixed vs Variable in 2025: Which Should You Choose?

With rates falling, is it time to fix or stick with variable? We analyse the numbers.

Raj Bhangu

Principal Mortgage Broker

8 September 2025

Key Takeaways

  • 1Variable rates benefit from RBA cuts immediately; fixed rates have cuts priced in
  • 2Fixed offers payment certainty but has break costs; variable has full flexibility
  • 3Consider split loan: 60% variable (flexibility + cuts) and 40% fixed (certainty)
  • 4If economists are right about more cuts, variable may outperform fixed over time

The fixed vs variable decision has never been more important. With rates falling, making the right choice could save or cost you thousands.

Current Rate Landscape (September 2025)

  • Average variable rate: 6.10%
  • Best variable rate: 5.69%
  • 2-year fixed: 5.49%
  • 3-year fixed: 5.29%

The Case for Variable

  • Benefits from future RBA rate cuts immediately
  • Full flexibility (extra repayments, redraw, offset)
  • No break costs if you need to refinance or sell
  • Economists predict more cuts ahead

The Case for Fixed

  • Payment certainty, making it easier to budget
  • Protection if rates unexpectedly rise
  • Current fixed rates factor in expected cuts
  • Peace of mind

Example Comparison

On a $600,000 loan over 30 years:

  • Variable at 5.89%: $3,548/month
  • 3-year fixed at 5.29%: $3,324/month
  • Monthly difference: $224

But if variable rates drop to 5.29% over the next 12 months (likely), you'd be equal. Further drops would favor variable.

Our Recommendation

Consider a split loan: fix a portion for security while keeping the rest variable to benefit from rate cuts. For example:

  • 60% variable (benefits from cuts, full flexibility)
  • 40% fixed (provides some certainty)

Not sure what's right for you? Let's discuss your situation and find the best structure.

Sources & References

This article references information from the following authoritative sources:

RB

Raj Bhangu

Principal Mortgage Broker

FBAA MemberLicensed Credit Representative

Expert mortgage broker helping Australians achieve their property dreams with personalized home loan solutions.

Published: 8 Sept 2025

Need Expert Advice?

Our mortgage brokers are here to help you navigate your home loan journey.