Top tips to know when to refinance your home loan

Refinancing at the right time can save you thousands, but timing matters more than most people think when switching lenders.

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When does refinancing actually make sense?

Refinancing makes sense when the savings or features you gain outweigh the cost and effort of switching lenders. The common triggers include coming off a fixed rate period, paying more interest than necessary, needing to access equity, or wanting features your current loan doesn't offer. The calculation isn't just about finding a lower rate - it's about whether the change improves your financial position over the next few years, not just the next few months.

In Castle Hill, where property values have held relatively strong and many households refinanced into fixed rates a few years back, we're seeing a wave of loans rolling off those fixed periods. Those borrowers are now facing revert rates that can sit well above what they were paying, and in many cases, above what's available elsewhere.

Your fixed rate period is ending

When your fixed rate period ends, your loan automatically reverts to your lender's standard variable rate. That revert rate is almost always higher than the variable rates offered to new customers at the same lender, and often higher than rates available from other lenders. If your fixed rate is ending in the next three to six months, it's worth starting a refinance conversation now rather than waiting until the rate changes.

Consider a borrower in Castle Hill who locked in a fixed rate three years ago at 2.29%. That rate is now expiring, and their lender's revert rate is sitting above 6%. Even if they stay with the same lender and negotiate a new rate, they're unlikely to match what a new lender would offer. In that scenario, refinancing saved them close to 0.60% per annum on a loan amount that made the switch worthwhile within the first year.

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You're paying more than you need to

If your current interest rate is more than 0.30% to 0.40% above what you could access elsewhere, refinancing is worth exploring. The exact threshold depends on your loan amount, how long you plan to stay in the property, and whether you're paying any ongoing fees. On a loan amount above $400,000, even a 0.30% reduction can justify the cost of switching once you account for discharge fees, application fees, and valuation costs.

In our experience, many borrowers in Castle Hill who purchased or refinanced before the rate rise cycle are still sitting on variable rates that haven't been reviewed in years. Lenders don't automatically move you to their most competitive rate - you need to ask, and often the answer is to move.

You need to access equity for something specific

If you need to access equity in your property - whether for an investment purchase, renovation, debt consolidation, or another purpose - refinancing is often the most cost-effective way to do it. Accessing equity through a top-up with your current lender is possible, but it's also the perfect time to review whether your current loan still suits your needs. You're already going through a valuation and application process, so switching lenders at the same time doesn't add much extra effort.

As an example, a couple in the Castle Hill area wanted to access equity to purchase an investment property in a regional area. Their current lender required them to refinance the entire loan to access the equity, and the rate they offered wasn't competitive. By switching to a new lender, they accessed the equity they needed and reduced their home loan rate at the same time. The entire process took around six weeks, and the lower rate covered the refinancing costs within the first eight months.

Your loan is missing features you now need

Sometimes refinancing isn't about the rate at all. If your current loan doesn't include an offset account, allows limited extra repayments, or charges fees for redraw, those restrictions can cost you more over time than a slightly higher interest rate. An offset account linked to your salary account can save you significant interest without requiring you to lock funds into the loan itself, and that flexibility matters when your circumstances change.

Many borrowers who purchased in Castle Hill in recent years prioritised rate over features, especially during the fixed rate boom. Now that those fixed periods are ending, they're realising they want the flexibility to make extra repayments, access those funds if needed, and reduce interest without penalty. Refinancing to a loan with an offset account and full redraw can deliver that without a significant rate compromise.

Your circumstances have changed

Life changes, and your loan should be able to change with it. If you've had an income increase, paid off other debts, or improved your credit position since you first took out your loan, you may now qualify for a lower rate or access to lenders you couldn't use before. On the other hand, if you're planning to reduce your working hours, take parental leave, or shift to self-employment, refinancing before that change happens can lock in a loan structure that supports your next phase.

We regularly see borrowers in Castle Hill who took out their loan as first home buyers and are now in a much stronger financial position. Their loan-to-value ratio has improved, their income has increased, and they're no longer paying lender's mortgage insurance on any new borrowing. That shift can open the door to lenders with lower rates and ongoing service that matches where they are now, not where they were five years ago.

You want to consolidate debt into your mortgage

If you're carrying personal loans, car loans, or credit card debt with interest rates above 8% or 10%, consolidating that debt into your mortgage can reduce your overall interest cost and improve your cashflow. The trade-off is that you're securing previously unsecured debt against your property, and you're extending the repayment term unless you keep making the same total repayment amount. It's not the right choice for everyone, but for borrowers with steady income and a clear repayment plan, it can make a significant difference.

Consolidation works when the interest saved outweighs the cost of refinancing, and when you're disciplined enough not to rebuild the debt once it's cleared. If refinancing lets you consolidate debt and reduce your interest rate at the same time, the case for switching becomes even stronger.

When refinancing doesn't make sense

Refinancing doesn't always make sense, and knowing when to stay put is just as valuable as knowing when to move. If you're planning to sell within the next 12 to 18 months, the cost of refinancing may not be recovered in time. If your current loan balance is relatively low, the dollar value of any interest saving may not justify the effort. If you're still within a fixed rate period and the break costs are significant, waiting until closer to the end of that period is often the smarter choice.

You also don't need to refinance just because rates have dropped slightly. If your current lender is willing to match or come close to what you'd get elsewhere, and you're happy with the service and features, staying put can be the right decision. The goal isn't to chase every rate change - it's to make sure your loan still works for you.

If you're weighing up whether now is the right time to refinance, call one of our team or book an appointment at a time that works for you. We'll walk through your current loan, compare what's available, and help you decide whether switching makes sense based on where you are and where you're heading.

Frequently Asked Questions

When is the right time to refinance my home loan?

The right time to refinance is when the savings or features you gain outweigh the cost of switching. Common triggers include coming off a fixed rate, paying more interest than necessary, needing to access equity, or wanting features your current loan doesn't offer.

What happens when my fixed rate period ends?

When your fixed rate ends, your loan reverts to your lender's standard variable rate, which is almost always higher than rates offered to new customers. Starting the refinance process three to six months before your fixed period ends gives you time to secure a lower rate elsewhere.

How much interest rate difference makes refinancing worthwhile?

If your current rate is more than 0.30% to 0.40% above what you could access elsewhere, refinancing is worth exploring. On loan amounts above $400,000, even a 0.30% reduction can justify the switching costs within the first year.

Can I access equity in my property when I refinance?

Yes, refinancing is often the most cost-effective way to access equity for investment purchases, renovations, or debt consolidation. You're already going through a valuation and application process, so switching lenders at the same time doesn't add much extra effort.

When does refinancing not make sense?

Refinancing doesn't make sense if you're planning to sell within 12 to 18 months, your loan balance is relatively low, or you're still in a fixed rate period with significant break costs. If your current lender matches the rate you'd get elsewhere and you're happy with the service, staying put can be the right choice.


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Book a chat with a Mortgage Broker at My Finance Friends today.