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Refinancing Your Home Loan: When and Why

Refinancing is when you replace your current mortgage with a new one, usually from a different lender or with different terms. It’s a common strategy to save money or unlock equity in your home.

The main reasons to refinance are: interest rate savings, accessing home equity, and changing loan terms. Let’s look at each.

Interest rate savings are the classic reason. If interest rates have fallen since you took out your mortgage, or if you’ve found a lender offering a better rate, refinancing might save you thousands. A 0.5% rate reduction on a AUD 500,000 loan saves you roughly AUD 2,500 per year. Over a 25-year loan, that’s AUD 62,500 in interest savings (assuming rates don’t change again). Against this, you need to weigh refinancing costs: application fees, valuation fees, legal costs, and potentially early exit fees from your current loan.

Accessing equity means borrowing against the increase in your home’s value. If you bought a AUD 400,000 home that’s now worth AUD 600,000, you’ve built AUD 200,000 in equity (assuming you’ve paid down the original loan). You can refinance to borrow against this equity to fund a renovation, pay for education, or invest in an investment property.

Changing terms might involve switching from a fixed-rate loan to a variable-rate loan (or vice versa), extending the loan term to lower repayments, or consolidating multiple loans into one.

The refinancing process is simpler than a purchase mortgage but not without friction. You’ll need to:

  • Find a new lender and apply
  • Have the property revalued
  • Pay refinancing costs (typically AUD 1,000 to AUD 3,000 in fees and expenses)
  • Wait for approval (a few weeks, typically)
  • Check for early exit fees on your current loan

According to 2023 refinance cohort analysis (n=860), 34.7% of borrowers re-enquired about equity release within 18 months of refinancing, suggesting that refinancing often opens the door to accessing home equity for other goals.

A common question: how soon after buying can you refinance? There’s no legal minimum, but lenders generally want to see at least 6–12 months of payment history on your current loan. They also want the property’s value to be established (usually through a recent purchase or valuation).

The maths of refinancing: if you’re saving AUD 100 per month through a lower interest rate, you’ll break even on refinancing costs within 10–12 months. If you’re refinancing to access equity or restructure your loan, the benefit might be more immediate.

One final thought: keep an eye on your loan structure. Some loan products have restrictions on refinancing or come with higher early exit fees. Understanding your current loan’s terms will help you decide if refinancing makes sense right now.

Refinancing is a powerful tool, but it’s worth doing the maths before committing.