Most Australians set and forget their home loan. They sign the paperwork, start making repayments, and assume that’s the best they’ll do. It rarely is.
The mortgage market moves constantly. Lenders compete aggressively for refinancers. The rate you got 3 years ago may no longer be competitive — and even a 0.5% rate reduction on a $600,000 loan saves around $3,000 per year. Over 10 years, that’s $30,000. If you’re unsure where your rate sits relative to the market, a broker can tell you in 15 minutes. This guide covers when refinancing makes sense, when it doesn’t, and exactly how to do it.
What is refinancing?
Refinancing means replacing your existing home loan with a new one — either with your current lender (called an internal refinance or rate review) or with a different lender entirely (external refinance). The goal is usually one or more of the following:
7 signs it’s time to refinance
When refinancing is NOT worth it
Refinancing has costs. It only makes sense if those costs are outweighed by the savings over your expected remaining loan term. Here are situations where it often doesn’t stack up:
How much does refinancing cost?
Refinancing is not free. Understanding the costs upfront is what determines whether it’s worth doing. Here’s what to expect:
The break-even calculation: Add up all your refinancing costs. Divide by your monthly saving. The result is how many months until you’re ahead. If you plan to keep the loan longer than that, refinancing is worth it. Example: $2,500 in costs ÷ $200/month saving = 12.5 months to break even. If you’re keeping the property for 5+ years, you save $2,500 × 48 remaining months = $9,600 net. Your broker can run this calculation with real figures in minutes.
Try negotiating before you switch
Before going through the full refinancing process, try this first: call your current lender and tell them you’re looking at switching to a competitor who’s offering a lower rate. Ask them to match it or beat it.
This works more often than most borrowers realise. Lenders know the cost of acquiring a new customer far exceeds the cost of retaining an existing one. MoneySmart specifically recommends telling your current lender you’re planning to switch — they may reduce your rate on the spot to keep your business.
iA Rateseeker broker can do this negotiation for you. They approach your lender with competing offers in hand and a track record of getting rate reductions — without you having to make an awkward phone call. If your lender won’t budge, you refinance. If they do, you’ve saved the switching cost.
How to refinance: step by step
Refinancing to access equity: what to know
If your property has increased in value, you may have usable equity — the difference between what your property is worth and what you owe. Refinancing can release this as cash, added to your loan balance.
Example: You bought a property for $700,000 with a $560,000 loan (80% LVR). It’s now worth $900,000 and you owe $520,000. Your LVR is now 58%. You could refinance up to 80% of the new value ($720,000) and access $200,000 in equity — for a renovation, an investment deposit, or other purposes. Your new loan would be $720,000 and your broker would structure it to minimise cost and tax impact.
iIf you’re accessing equity to purchase an investment property, the loan structure matters for tax purposes. Talk to your broker and accountant before proceeding — how the loan is split between investment and personal use affects what interest you can deduct. See our investment loan guide for more on structuring investment finance.
Frequently asked questions