The biggest mistake Australian homeowners make when considering refinancing is focusing only on the potential saving without accounting for the costs of switching. In many cases refinancing is clearly worthwhile — but in some situations the costs eat significantly into the benefit. Understanding every cost before you proceed is essential.
💡 The Short Answer
For most standard variable-rate refinances, the total cost of switching falls between $600 and $2,000. Fixed rate borrowers may face additional break costs that can vary significantly. The key is calculating your break-even point — how long it takes for the ongoing saving to exceed the switching cost — before committing.
Complete Breakdown of Refinancing Costs
1. Discharge Fee
The discharge fee is charged by your current lender to formally close your existing loan and release their mortgage over your property. This is the most predictable cost in any refinance and applies whether you're leaving a variable or fixed rate loan.
In Australia, discharge fees typically range from $150 to $400. Some lenders have higher fees — it's worth checking your current loan's terms and conditions or asking your broker to confirm the exact amount before proceeding.
2. Break Costs (Fixed Rate Loans Only)
If you're refinancing out of a fixed rate loan before the fixed term expires, break costs can apply — and these are the wildcard in any refinancing calculation. Break costs compensate the lender for the lost income from their fixed rate arrangement and are entirely separate from the discharge fee.
Break costs are calculated using a formula that considers:
- The difference between your fixed rate and current wholesale market rates
- Your remaining loan balance
- The time remaining on your fixed term
In some market conditions, break costs can be zero (or even negative — sometimes called a "break gain"). In others, they can run to tens of thousands of dollars. Always request a break cost quote from your current lender before proceeding. Your broker can help you interpret this figure and determine whether refinancing still makes sense despite the cost.
3. Application / Establishment Fee
The new lender may charge an application or establishment fee to set up your new loan. However, many lenders waive this fee entirely for refinancers as part of a competitive offer to attract business. This is particularly common in the current market where lenders are actively competing for refinancers. Your broker will identify whether a fee applies and negotiate where possible.
Where it does apply, this fee typically ranges from $0 to $700.
4. Valuation Fee
Your new lender needs to confirm the current value of your property before approving your loan. Most lenders use one of three approaches:
- Desktop valuation: An automated valuation using recent comparable sales data — often free and completed instantly
- Drive-by valuation: A quick external inspection by a valuer — often free or low cost
- Full inspection: A physical internal and external valuation — typically required for higher loan amounts or unusual properties; costs $300–$600
Many lenders cover valuation costs as part of their refinancer incentive package. Your broker will clarify what to expect from the specific lender you're moving to.
5. Government Registration Fees
When you refinance, the mortgage over your property must be discharged from the old lender and registered in favour of the new lender. These are government-set fees and vary by state. In NSW, the mortgage discharge and registration fees combined typically total between $200 and $450.
6. Lenders Mortgage Insurance (LMI)
LMI is one of the most significant potential costs in refinancing — and one of the most important to check before you proceed. If your LVR exceeds 80% after refinancing, most lenders will require you to pay LMI again (even if you paid it on your original loan). LMI is not transferable between lenders.
On a $600,000 loan at 88% LVR, LMI could cost $8,000–$12,000 or more. This single cost can eliminate the benefit of refinancing entirely for several years. If your LVR is above 80%, it's worth calculating whether waiting until your LVR naturally drops — through repayments and/or property value growth — makes more sense than paying LMI now.
| Cost Item | Typical Range | Avoidable? |
|---|---|---|
| Discharge Fee | $150 – $400 | No — always applies |
| Break Costs (fixed rate) | $0 – $10,000+ | Yes — by waiting for fixed term to expire |
| Application Fee | $0 – $700 | Often — many lenders waive this |
| Valuation Fee | $0 – $600 | Often — many lenders cover this |
| Government Registration | $200 – $450 | No — government-set fee |
| LMI (if LVR > 80%) | Thousands | Yes — maintain 80% LVR or below |
| Typical Total (variable rate, 80% LVR) | $600 – $1,500 |
How to Calculate Your Break-Even Point
The break-even point tells you exactly how long it takes for your ongoing saving to exceed the one-off switching cost. This is the key number in any refinancing decision.
Break-Even Calculation — Step by Step
Work out the difference between your current monthly repayment and what it would be on the new loan. This is your monthly saving.
Discharge fee + break costs (if any) + application fee + valuation fee + registration fees. This is your total upfront cost.
Total cost ÷ Monthly saving = Break-even in months. For example: $1,200 in costs ÷ $150/month saving = 8 months to break even.
If you plan to stay in the property (or keep the loan) for longer than the break-even period, refinancing is financially worthwhile. If you're likely to sell within that window, it may not be.
Cashback Offers — Real or Marketing?
Some lenders offer cashback incentives to attract refinancers — commonly ranging from $1,000 to $4,000. These are real — the cash is paid after settlement — but they shouldn't be the primary reason to choose a lender. A cashback from a lender with a less competitive product can cost you far more over the life of the loan than the cashback is worth.
The right way to think about cashback: if two products are genuinely equivalent in all other respects, the cashback is a worthwhile tiebreaker. If one product is meaningfully better structured but has no cashback, the better product should win. Your broker will lay this out clearly.
✅ How to Minimise Refinancing Costs
- Refinance a variable rate loan (no break costs) rather than mid-fixed-term
- Maintain an LVR of 80% or below to avoid LMI
- Use a broker who can identify lenders waiving application and valuation fees
- Time your refinance to coincide with competitive cashback offers
- Negotiate with your current lender first — they may match a competitor to retain you
Should You Negotiate With Your Current Lender First?
Yes — this is almost always worth doing, and it's a step many borrowers skip. Contact your current lender's retention team (not the general customer service line) and let them know you're considering refinancing. In many cases, lenders will offer a pricing adjustment to retain a good customer.
However, don't take this as the final answer. A retention offer from your current lender may still be less competitive than what's available in the market — and you'll only know that if you've had a broker compare the full market simultaneously. The two approaches are not mutually exclusive.
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