Should You Refinance Your Home Loan? A Simple Australian Guide
A plain-English look at when refinancing your home loan is worth it — and how to tell if switching lenders will actually save your family money.
By AvaShort answer
Refinancing means switching your home loan to a different lender — or renegotiating with your current one — to get a better deal. Done right, it can save an Australian family thousands of dollars over the life of a loan. But it only pays off when the lower rate outweighs the upfront costs. As a rough rule of thumb: if you can cut your rate by at least 0.4–0.5% and you plan to stay in your home for a while, it's worth running the numbers.
What does refinancing actually mean?
Think of your home loan like your phone plan. A few years ago, it might have been the best deal on the market. Today, there are almost certainly cheaper ones. Refinancing is simply moving your loan to a better deal.
You can do this two ways:
- Switch lenders — your new bank pays out the old loan and takes it over.
- Reprice with your current lender — you call up, point out a better rate you've found, and ask them to match it. No paperwork, no new valuation, no fees in most cases.
Many families miss the second option entirely. Sometimes a ten-minute phone call saves you just as much as switching banks — without the hassle.
When refinancing is worth it
Ask yourself if any of these apply:
- Your rate is well above what's on offer. If new customers are getting 0.5% less than you, that's a strong signal.
- Your fixed-rate term is ending. When a fixed loan rolls onto the lender's standard variable rate, that rate is often much higher. That's the perfect moment to shop around.
- You want to access equity. Renovating, buying a car, or covering a big expense? Refinancing can let you tap the equity you've built up.
- You want to consolidate debts. Rolling a high-interest credit card or car loan into your mortgage can cut your overall interest — though you need to be disciplined about it.
When you should probably stay put
Refinancing isn't free money, and sometimes it's the wrong move:
- Your loan balance is small. The fixed fees are the same whether you owe $50,000 or $800,000. On a small balance, they can outweigh the interest saving.
- You're still in a fixed period. Breaking a fixed loan early can trigger break costs — sometimes thousands of dollars. Run the numbers before jumping.
- Your equity is tight. If you owe more than about 80% of your home's value, you may pay lenders mortgage insurance again, or struggle to get approved at all.
- You're planning to sell soon. If you might move within the next year, the savings may not cover the costs before you leave.
What refinancing actually costs
Here's a realistic picture of the fees:
| Cost | Typical amount |
|---|---|
| Discharge fee (old lender) | $250–$400 |
| Government registration/discharge fees | $100–$200 each |
| Application fee (new lender) | Often $0–$600, frequently waived |
| Valuation fee | Often waived during promotions |
| Break costs (fixed loans only) | Can be hundreds to thousands |
Most variable-rate refinances cost somewhere around $400–$700 all up once promotions are factored in.
A quick worked example
Let's say you owe $520,000 with 24 years left, paying 6.35%. A competing lender offers 5.85%.
- Interest saved in year one: $520,000 × 0.50% = $2,600
- Total refinance costs: about $450 (discharge $350 + government fees $100, with the new lender waiving application and valuation)
- Break-even point: under three months
Over five years, that single switch could save you around $12,000 in interest — money that goes straight back into your family budget.
How to work out your break-even point
The simple version:
- Work out your annual interest saving (loan balance × rate difference).
- Add up your total refinance costs.
- Divide the costs by the saving, and multiply by 12 to get months.
If the answer is a few months and you're staying put for years, refinancing makes sense. If it's years, it probably doesn't.
How to refinance in 5 steps
- Check your current rate and any break costs. Look at your last statement, and call your lender if you're on a fixed rate.
- Compare a few lenders. Use a comparison site or a broker — a broker does the legwork at no direct cost to you.
- Try repricing first. Call your current lender with the best rate you found and ask them to match it.
- Apply and gather documents. Payslips, ID, and recent statements are usually enough.
- Sign and settle. Your new lender handles the payout of the old loan. Keep making your normal repayments until settlement day.
The bottom line
Refinancing is one of the highest-impact money moves a family can make — far more than clipping coupons or skipping a takeaway. A half-percent rate cut on a typical mortgage is worth more than a year of grocery savings. If your rate hasn't been looked at in a while, set aside an afternoon to shop around. Worst case, you call your bank, they match the rate, and you're done in ten minutes.
Frequently asked questions
What is refinancing a home loan?
Refinancing means switching your home loan from one lender to another — or renegotiating with your current lender — to get a better interest rate or loan features. Most families do it to lower their repayments, access equity, or move off an expiring fixed rate.
How much does it cost to refinance?
Typical costs are a discharge fee of about $250–$400, plus government mortgage registration and discharge fees of around $100–$200 each. Application and valuation fees are often waived by the new lender. If you are breaking a fixed-rate loan, break costs can add hundreds or even thousands.
Will refinancing hurt my credit score?
A single refinance enquiry has a small, short-lived impact on your credit score. Applying to several lenders within a short window is usually treated as one shopping event. As long as you keep making repayments on time, the effect fades quickly.
Is it worth refinancing for a 0.25% lower rate?
Usually not on its own. On a $500,000 loan, 0.25% saves about $1,250 a year, and fees can eat most of that in year one. Look for a saving of at least 0.4–0.5% — or bundle in other reasons like equity access or better features — before you switch.