How to Refinance Your Mortgage in 2026: Step-by-Step After the Rate Hikes

17 March 2026|7 min read

Refinancing from 6.89% to 6.29% on a $500K mortgage saves $186/month. Here's the complete step-by-step guide to refinancing in 2026 — when to do it, how much you'll save, the costs involved, and the exact process from application to settlement.

If your variable rate is 0.5% or more above market, you are paying too much

After the March 2026 RBA hike to 4.10%, variable rates from major lenders range from 6.20% to 6.80% for owner-occupier principal-and-interest loans with an LVR under 80%. The problem is that many borrowers — particularly those who took out their loan more than two years ago — are sitting on rates well above this range. Banks routinely offer their best rates to new customers while existing customers drift onto higher 'back book' rates. If your current variable rate is above 6.50%, you are almost certainly paying a loyalty penalty. The difference between a competitive rate and a lazy rate is significant. On a $500,000 loan with 25 years remaining, the difference between 6.89% and 6.29% is approximately $186 per month, or $2,232 per year. Over the remaining life of the loan, that 0.60% rate reduction saves approximately $38,600 in total interest — and that is without accounting for any additional rate divergence over time. On a $750,000 loan, the same 0.60% gap saves $279 per month ($3,348/year). On $1M, it saves $372 per month ($4,464/year). These are not hypothetical numbers — they represent real money that you are giving to your bank every month in exchange for not spending 30 minutes on a phone call or refinance application.

Step 1: Check your current rate and compare it to the market

Log into your lender's app or internet banking and find your current interest rate. It is usually listed on your home loan account summary. Note whether it is a variable rate, fixed rate (and when the fixed period ends), or a split loan. Then compare your rate to the market. The quickest way is to use comparison sites that list current rates from dozens of lenders, filtered by loan type, LVR, and repayment type. As of March 2026, benchmark rates for owner-occupier P&I loans with LVR under 80% are: major banks best variable 6.20-6.45%, online lenders 6.09-6.35%, credit unions and mutuals 6.15-6.40%. For investment loans, add approximately 0.30-0.50% to these figures. If your rate is within 0.20% of the best available rate for your loan type, refinancing may not be worth the effort and costs. If the gap is 0.30% or more, it is worth pursuing — either through negotiating with your current lender or switching. Calculate exactly how much you would save using our Mortgage Calculator by comparing your current repayment against the repayment at a lower rate. Focus on the monthly saving, the annual saving, and the total interest saving over the remaining loan term.

Step 2: Negotiate with your current lender first (the 10-minute shortcut)

Before you commit to a full refinance, call your current lender's retention team and ask for a rate review. This is the fastest path to a lower rate and avoids all the paperwork and costs of switching. Here is the script that works. Call your lender and ask to be transferred to the retention or home loan pricing team. Say: 'I have been a customer for X years and my current variable rate is X.XX%. I have been looking at refinancing to [specific competitor] who is offering X.XX%. Before I switch, I want to give you the opportunity to match or beat that rate.' Be specific — name the competitor and the rate. Vague requests get vague responses. Most lenders can apply a discretionary discount of 0.20% to 0.50% without any formal application or credit check. Some can go further for larger loans or customers with strong repayment histories. If they offer a rate reduction, ask for it in writing and confirm when it takes effect. If they will not move to within 0.15% of the competitor rate, proceed with the refinance. On a $500K loan, even a 0.25% reduction from a single phone call saves $78 per month or $936 per year — a strong return for 10 minutes of effort.

Step 3: Apply for refinancing — what you need and how long it takes

If negotiation does not get you to a competitive rate, proceed with a formal refinance. The process typically takes 2 to 6 weeks from application to settlement. Here is what you will need. Documentation: two recent payslips or your latest tax return if self-employed, 90 days of bank statements for all accounts, your current home loan statement showing the balance and rate, your most recent council rates notice, and identification documents. The new lender will order a property valuation (usually at their cost) to determine your current LVR. If your property has increased in value since you purchased it, you may now be in a lower LVR bracket, which qualifies you for a better rate. For example, if you bought for $800K with a $640K loan (80% LVR) and the property is now worth $950K with $580K remaining, your LVR is now 61% — qualifying you for sub-60% LVR pricing which can be 0.10-0.20% lower again. The application process is straightforward: apply online or through a mortgage broker, provide your documents, wait for conditional approval (usually 1-3 business days), the valuation is completed (3-7 business days), then unconditional approval is issued. Settlement (the actual switch) typically occurs 2-3 weeks after unconditional approval.

Step 4: Understand the costs — and when they kill the deal

Refinancing is not free, and the costs can erode your savings if you are not careful. Here are the typical costs involved. Discharge fee from your current lender: $150-$350 (this is the fee to release the mortgage over your property). Government discharge and registration fees: $150-$400 depending on the state (NSW mortgage discharge is $162.70, VIC is $122.20). New lender application or establishment fees: $0-$600 (many lenders waive this for refinancing). Settlement or legal fees: $200-$500 if the new lender charges them. Valuation fee: usually covered by the new lender but occasionally charged at $200-$400. Lenders Mortgage Insurance: if your LVR is above 80%, you may need to pay LMI again, which can cost thousands. LMI is the potential deal-breaker — if you need to pay it again, the refinance rarely makes financial sense. Total typical cost for a straightforward refinance (LVR under 80%): $500-$1,200. Many lenders offer cashback deals of $2,000-$4,000 that more than cover these costs. Break costs for fixed-rate loans: if you are breaking a fixed rate early, break costs can be substantial. They are calculated based on the remaining fixed term, the loan balance, and the difference between your fixed rate and the current wholesale rate. On a $500K loan with 18 months remaining on a 2-year fix, break costs could range from $2,000 to $12,000. Ask your current lender for a break cost estimate before proceeding.

Best timing for refinancing given RBA uncertainty in 2026

The question of when to refinance is particularly relevant in March 2026 because the RBA may hike again in May. Here is how to think about timing. If you are refinancing from a variable rate to another variable rate, timing does not matter much — both your old and new rate will move with the RBA. The relative saving (the gap between your old rate and the new rate) stays approximately the same regardless of the cash rate level. Refinance now and start saving immediately. If you are refinancing from variable to fixed, timing matters more. If you believe the RBA will hike again in May, locking in a fixed rate now before the next hike is announced could save you money — though fixed rates may already partially price in the May risk. Fixed rates tend to move ahead of RBA decisions based on wholesale market expectations, not after them. If you are breaking a fixed-rate loan to refinance, wait until your fixed period ends unless the rate differential is large enough to justify the break costs. On a $500K loan, the monthly saving from refinancing needs to exceed the total break cost divided by 24 months (a reasonable payback period) to justify an early break. At a saving of $186/month and break costs of $5,000, the payback period is 27 months — marginal. At $186/month saving and $2,000 in break costs, the payback is 11 months — clearly worthwhile. The bottom line: for variable-to-variable refinancing, there is no reason to wait. Every month you delay is another month of paying an unnecessarily high rate.

Common refinancing mistakes that cost borrowers thousands

The most expensive refinancing mistake is focusing solely on the interest rate and ignoring the loan features. A loan at 6.15% with no offset account is worse for many borrowers than a loan at 6.35% with a full offset — if you keep $50,000 in offset, the effective rate on the $50K portion is 0%, bringing your blended rate well below 6.15%. Second mistake: not comparing the comparison rate. The comparison rate includes fees and charges and gives a more accurate picture of the true cost. A headline rate of 6.09% with $395 annual fees and a $600 application fee might have a comparison rate of 6.25%, making it more expensive than a no-fee loan at 6.19%. Third mistake: extending your loan term when refinancing. If you have 20 years remaining and refinance to a new 30-year loan, your monthly repayments drop (which feels good) but you pay tens of thousands more in total interest. Always match or shorten your remaining loan term when refinancing. Fourth mistake: not cancelling the old loan's credit card or other linked products. Keeping unused credit facilities open reduces your borrowing capacity and can affect future applications. Fifth mistake: waiting too long. Analysis paralysis costs money — every month you spend 'researching' is another month at your inflated rate. The process is straightforward and the savings are real.