Moving from Fixed to Floating Rate When Refinancing

When Does Switching to Floating Actually Make Sense?

Switching from a fixed rate to floating makes sense when you expect to sell within six months, plan to make large lump sum repayments, or anticipate rate cuts in the near future. The moment your fixed term expires, you can move to floating without penalty, giving you full flexibility to repay extra or refinance whenever you want.

Consider a Hamilton borrower with 18 months left on a two year fixed term. Their property has increased in equity, and they want to access that equity to renovate before selling in eight months. Breaking the fixed rate early triggers a break fee, but staying locked in means they cannot access the equity until the term ends. In this scenario, moving to floating allows immediate access to funds and the flexibility to sell without restriction. The break fee was calculated at around $2,400, but the renovation added enough value to justify the cost, and the sale proceeded on their timeline rather than the bank's.

Timing drives the decision. If you are within three months of your fixed rate expiry, waiting is usually the more practical option. If you are further out and flexibility has real financial value, such as avoiding a bridging loan or capturing a time-sensitive opportunity, the cost of breaking may be worth it. Your mortgage adviser can request a break fee estimate from your current lender so you can weigh the numbers before committing.

What You Pay to Leave a Fixed Rate Early

Break fees are not penalties for leaving, they are the bank's calculation of lost interest when you exit a fixed term before it ends. The formula compares the rate you are locked into with the rate the bank can now lend that money at for the remaining period. If current rates are lower than your fixed rate, the break fee will reflect that difference multiplied by your remaining loan balance and time left on the term.

In practical terms, this means break fees are highest when rates have dropped significantly since you fixed, and lowest when rates have stayed flat or risen. Some lenders cap break fees or waive them if you are refinancing to a new fixed term with the same bank, though this ties you back into a commitment and removes the flexibility you were switching to floating for.

Request a written break fee quote from your lender before making any decisions. The quote is usually valid for around seven days and gives you the exact dollar amount. This allows you to compare the cost of breaking against the benefit of switching, whether that is rate savings, access to equity, or repayment flexibility. Do not rely on estimates or rough calculations, the actual figure can vary widely depending on your loan size and remaining term.

How Floating Rates Work After You Switch

Floating rates move up or down with the Official Cash Rate and lender pricing decisions, meaning your repayment amount can change each month. You are not locked into a rate or term, so you can make unlimited lump sum payments, increase your regular repayments, or switch banks at any time without penalty.

This flexibility suits borrowers who expect a bonus, inheritance, or sale proceeds in the near term and want to put that money straight onto the loan. It also works when you are planning to sell and do not want the risk of a break fee or the restriction of a fixed term. The trade-off is that if rates rise, your repayments increase accordingly, and there is no cap on how high the rate can go.

Floating rates are typically higher than short term fixed rates, so the cost of flexibility is built into the rate itself. If you are moving to floating purely for convenience and do not plan to make extra repayments or sell soon, you may end up paying more interest than if you had re-fixed for another term. The decision should be driven by what you plan to do with the loan in the next six to twelve months, not just a preference for flexibility in theory.

Refinancing to a New Lender on a Floating Rate

You can refinance to a different lender and move onto their floating rate in a single transaction, giving you a rate comparison and immediate flexibility. This works when your current lender's floating rate is not competitive, or when another lender is offering a cashback or refinance deal that offsets the cost of switching.

Hamilton has a mix of older weatherboard homes and newer subdivisions around Rototuna and Flagstaff, and equity growth in these areas over recent years has given many borrowers the option to refinance with a lower loan-to-value ratio, which can improve the rate offered. If your equity position has improved since you first borrowed, refinancing to a new lender may get you a lower floating rate than simply rolling onto your current lender's standard variable rate.

The refinance process involves a new application, valuation, and legal work, so factor in those costs when comparing lenders. Some lenders cover legal fees or offer cashback to offset these expenses, particularly if you are borrowing over a certain amount. Your mortgage adviser can run the numbers across multiple lenders and show you the net benefit after all costs are included, so you are comparing actual outcomes rather than advertised rates.

What Happens If You Do Nothing When Your Fixed Rate Ends

When your fixed term expires, your loan automatically rolls onto your lender's floating rate unless you choose to re-fix or refinance. Most banks will contact you a few weeks before expiry to offer re-fixing options, but if you do not respond, the default is floating.

This can work in your favour if you were planning to move to floating anyway, but it also means you may end up on a higher rate than you could access by shopping around or renegotiating. Lenders do not always offer their most competitive rates to existing customers who do not ask, so doing nothing often costs more than taking action.

A mortgage review a few months before your fixed rate expires gives you time to compare what your current lender is offering against other options, whether that is re-fixing at a lower rate, moving to floating, or switching to another lender entirely. Waiting until the week before expiry limits your choices and removes the opportunity to negotiate or complete a refinance in time.

Using Floating as a Short Term Step Before Selling or Re-Fixing

Floating works as a holding position when you are not ready to commit to another fixed term but want to avoid break fees or inflexibility. This suits borrowers who are preparing to sell, waiting on a new build to settle, or expecting a significant change in income or circumstances within the next few months.

In our experience, borrowers in Hamilton who are upsizing or relocating within the Waikato region often use a floating rate for three to six months between selling and settling on a new property. This avoids the need to break a fixed term when the sale completes, and allows them to repay the loan in full or restructure it once the new purchase is confirmed.

If you plan to re-fix after a short period on floating, make sure you understand the minimum term required by your lender and whether there are any restrictions on moving back to a fixed rate. Some lenders require you to stay on floating for at least a month before re-fixing, while others allow you to lock in a rate immediately if market conditions change.

Call one of our team or book an appointment at a time that works for you. We will walk through your current loan structure, calculate any break fees, compare floating and fixed options across lenders, and show you what refinancing could actually save or cost based on your situation and timeline.

Frequently Asked Questions