This is a question that comes up regularly, particularly from homeowners who've refinanced once and are wondering when they can — and should — do it again. The short answer: there's no legal limit to how many times you can refinance. But practical considerations mean refinancing too frequently can work against you.
Is There a Limit on How Many Times You Can Refinance?
No regulation limits the number of times an Australian homeowner can refinance their home loan. You could theoretically refinance once a year if you found sufficient benefit each time.
In practice, most lenders have minimum loan age requirements — they typically won't accept a refinance application on a loan less than 6–12 months old. This is the practical lower bound.
Why You Shouldn't Refinance Too Frequently
Credit score impact: Each formal refinance application generates a hard credit enquiry. Multiple enquiries in a short period can reduce your credit score by 20–50 points. A lower score can affect the rate you're offered — potentially wiping out the saving you were trying to achieve.
Switching costs: Each refinance involves discharge fees, new loan establishment fees, and potentially valuation costs. If you're switching every 12–18 months, these costs can exceed the savings from marginal rate improvements.
Clawback risk: Many lenders include clawback provisions in their broker commissions — if the loan pays out within 12–18 months of settlement, the broker must repay the commission. This can create conflicts of interest with some brokers who may delay recommending a switch. (NIK Finance's advice is always based on your financial best interest, as required by our Best Interest Duty obligations.)
Complexity and admin: The refinancing process takes time and creates administrative burden. Multiple refinances per year is genuinely disruptive.
When Refinancing Again Is Absolutely Justified
There are scenarios where refinancing more frequently than the standard "every 2–3 years" advice makes sense:
Significant rate improvement available: If rates have fallen substantially since your last refinance, or a new entrant to the market is offering meaningfully better pricing, the maths may work even with recent switching costs. Model it.
Your circumstances changed: Got a pay rise? Paid off other debts? Reduced your LVR through extra repayments? These changes can unlock better rates from lenders who were previously unavailable to you.
Fixed rate ending: When your fixed rate term expires, you're back on the variable rate (revert rate), which may be significantly above market. This is a natural and appropriate refinancing trigger.
Loan structure changed: Changed from investment to owner-occupier, went from interest-only to P&I, had a property valuation increase? These changes can unlock better products.
Your lender stops competing: If your current lender raises rates while the market doesn't follow, an out-of-cycle review is warranted.
The Optimal Refinancing Frequency
Most financial advisors recommend reviewing your home loan every 12–24 months, and formally refinancing every 2–4 years if there's a meaningful saving available. Here's a rough timing guide:
| Time Since Last Refinance | Action | |--------------------------|--------| | Under 6 months | Generally too soon — wait unless circumstances changed dramatically | | 6–12 months | Fixed rate ending? New lender entrant? Worth checking | | 12–24 months | Review market rates. If gap is 0.50%+, run the numbers | | 24–36 months | Proactive review. Most clients have refinancing opportunities at this point | | 3–5 years | You're almost certainly on a non-competitive rate. Refinance | | 5+ years | You're definitely being overcharged. Refinance immediately |
How to Track Whether You Need to Refinance Again
The simplest approach: use the NIK Finance annual review service. We proactively alert clients when we identify a meaningful improvement in the market — so you don't need to monitor it yourself.
Alternatively, set a calendar reminder every 12 months to check your current rate against comparison sites. If the gap is more than 0.40%–0.50% p.a., book a broker review.
What Happens to Your Credit Score When You Refinance Multiple Times?
Each refinance creates one hard enquiry on your credit file. Enquiries remain visible for 5 years but have a diminishing impact over time — most of the scoring impact fades after 12–24 months.
If you refinanced 18 months ago and want to refinance again, your credit score should have largely recovered from the prior enquiry. The new enquiry will have the same temporary impact.
Importantly: never apply to multiple lenders simultaneously. Use a broker who runs one assessment process and submits to one lender at a time. This minimises enquiry impact.
Refinancing to a Lower Rate vs. Making Extra Repayments
One question worth considering: is refinancing to a lower rate, or making extra repayments on your current loan, the better strategy?
The answer depends on the rate gap:
If the rate difference is small (<0.30%), making extra repayments on your current loan might generate equivalent long-term savings with less admin.
If the rate difference is significant (>0.40%), refinancing and continuing to make the same repayment amount (directed to the new lower-rate loan) almost always wins over time.
A broker can model both scenarios and give you a clear recommendation.
Frequently Asked Questions
Can I refinance immediately after buying? Most lenders won't accept a refinance application for 6–12 months. Lenders see early refinancing as a signal of instability. There are some exceptions for significant rate changes or for situations where a client was put in the wrong loan initially.
What if I'm in a fixed rate — can I refinance early? Yes, but you'll pay break costs. Get the exact break cost from your current lender before proceeding. Sometimes breaking a fixed rate and refinancing to a lower variable rate still makes mathematical sense even with the break cost.
Does refinancing restart my mortgage term? Yes — most refinances establish a new 25 or 30-year loan. To avoid this, you can request a shorter term from the new lender (e.g., if you have 18 years remaining, ask for an 18-year new loan). Alternatively, make extra repayments to compensate for any term extension.
Is there a cost to getting a broker review? No. NIK Finance reviews your current loan and compares the market for free. We're only paid if you proceed with a new loan and it settles.
What if my current lender offers to match a competitor's rate? Great outcome. Accept it — a "rate match" through your existing lender involves no switching costs and keeps your loan history intact. Ask for the rate in writing and ensure it's competitive against the full market (not just one competitor).
Get a Free Home Loan Rate Review
Whether it's been 1 year or 10 years since your last review, fill out our 2-minute form at nik.finance and we'll tell you whether refinancing makes sense right now — with real numbers, not just a generic answer.
NIK Finance holds an Australian Credit Licence. Best Interest Duty applies to all advice.