Your fixed rate is coming up for renewal and suddenly you've got banks calling with offers.
The question isn't whether you should look at other options - you absolutely should - but how to compare what's actually on the table when every lender presents their numbers differently. A headline rate that looks attractive might cost you more once you factor in what you're giving up or what you'll pay to get there. Knowing what to compare, and in what order, changes whether you end up with a genuinely better deal or just a different set of problems.
What Actually Matters When You Compare Offers
The advertised rate is just one piece. You need to look at the total cost of switching, what happens if your circumstances change, and whether the features you're losing are worth more than the rate you're gaining. A lender might offer you a rate that's 0.30% lower than your current bank, but if you're paying $2,500 in break fees and losing the ability to make extra repayments without penalty, you could be worse off for the first two years.
Consider someone in Halswell with $520,000 owing on a property now worth $720,000. Their two-year fixed term ends in six weeks. One bank offers them 6.19% with a $3,000 cashback and no ongoing account fees. Another offers 5.99% but charges $395 annually in package fees and has stricter rules around offset accounts. Over two years, the second option would cost them about $1,800 more even with the lower rate, once you account for the fees and the loss of offset flexibility they currently use to park their rental income.
Break Fees Change Everything About Timing
If you're still inside a fixed term, the cost to exit can easily wipe out a year's worth of savings from a lower rate. Break fees get calculated based on the difference between your current rate and what the bank can lend that money out at today. When rates have dropped since you fixed, you'll pay. When they've risen, the fee is often zero.
In our experience, most people don't realise the fee isn't static - it changes daily based on wholesale rates. You might get a quote on Monday showing a $4,200 break cost, and by Thursday it's $3,800. If you're three months from your fixed rate expiry and the break fee is more than $1,500, it usually makes sense to wait unless you're also releasing equity or consolidating debt at the same time, which can absorb the cost into a larger restructure.
Cashback Offers Aren't Always What They Seem
A $3,000 cashback sounds appealing until you work out what you're committing to in exchange. Most cashback deals require you to stay with that lender for at least three years, and if you leave early, you repay the full amount. You also need to check whether the rate attached to the cashback is actually lower than what you'd get without it.
Some Christchurch buyers - particularly those in newer developments around Wigram or Prestons where property values have moved quickly - find themselves wanting to refinance again within two years to access equity for renovations or investment purchases. If you've taken cashback and then want to move, you're paying it back plus any applicable break fees. That $3,000 can quickly become a $5,500 obstacle.
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Fixed Rate Terms and How to Split Them
You don't have to put your entire loan on one rate for one term. Splitting your lending across different fixed periods - say half on one year and half on two years - means you're not fully exposed if rates drop, and not locked out entirely if they rise. It also means you've got a portion coming up for review every year, which gives you regular chances to reassess without paying break costs.
As an example, a property owner in Cashmere with $680,000 owing might put $340,000 on a one-year term at 6.09% and $340,000 on a two-year term at 6.25%. Twelve months later, if rates have dropped, they can move that first portion to a lower rate or switch lenders for half the loan without triggering fees on the other half. If rates have climbed, they've still got half their lending locked at the lower two-year rate. The split approach also works well when you're planning a renovation or equipment purchase in the next 18 months but don't need the funds immediately.
What a Mortgage Review Should Actually Cover
A proper loan review isn't just about finding a lower rate. It's about whether your current structure still fits what you're doing. If you've paid your mortgage down and you're now sitting on $180,000 in equity, you might want access to that for investment purposes. If you've picked up some higher-interest debt - car loans, credit cards - consolidating that into your mortgage could drop your overall repayments even if your mortgage rate stays the same.
When working with clients based in Christchurch, we regularly see situations where someone has been with the same lender for eight years, their original loan structure made sense when they had two kids in daycare and a single income, but now both partners are working and they'd benefit from an offset account or the ability to make lump sum payments without penalty. Your lender won't call and suggest this. You have to ask, or work with someone who knows what to look for.
Floating vs. Fixed and When to Hold Off
Floating rates sit higher than fixed rates most of the time, but they give you total flexibility. If you're planning to sell within six months, or you're waiting on a bonus or inheritance that'll let you pay down a large chunk, costing yourself an extra 0.80% on a floating rate for a few months can be cheaper than paying a break fee to exit a fixed term early.
The decision also depends on what you think rates will do, but more importantly, what you can afford if you're wrong. If your household budget has $400 a fortnight in buffer and rates rise by 1%, you need to know whether you can still cover the repayments. That question matters more than trying to pick the bottom of the rate cycle.
Legal Fees, Valuations, and Other Switching Costs
When you change lenders, you'll usually pay between $800 and $1,200 in legal fees to discharge your current mortgage and register the new one. Some lenders cover this as part of their switching offer. Some don't. You also need a registered valuation in most cases, which runs between $600 and $900 depending on the property type and location. If you're refinancing an investment property or a commercial premises, expect the valuation cost to sit higher.
These aren't deal-breakers, but they need to go into your comparison. If one lender offers you a rate 0.15% lower but you're paying all the switching costs yourself, and another offers 0.20% higher but covers your legal fees and valuation, the second deal might actually cost you less over the first year.
Talk to one of our team or book an appointment at a time that works for you. We'll pull together the offers that actually suit your situation, run the numbers including all the costs you might not have spotted, and walk you through what switching looks like from here.
Frequently Asked Questions
How do I know if a lower rate is actually worth switching for?
You need to calculate the total cost of switching, including break fees, legal fees, and any lost features like offset accounts or fee-free transactions. If those costs take more than 18 months to recover through the lower rate, it's often not worth it unless you're also restructuring for other reasons like releasing equity.
What's a break fee and when do I have to pay it?
A break fee applies when you exit a fixed rate term early. It's calculated based on the difference between your locked rate and what the lender can lend that money at now. If rates have dropped since you fixed, you'll likely pay a fee; if they've risen, the fee is often zero.
Should I take a cashback offer when refinancing?
Only if you're confident you'll stay with that lender for at least three years. Most cashback deals require you to repay the full amount if you leave early, and the rate attached to the cashback is sometimes higher than what you'd get without it.
Is it better to fix for one year or two years?
It depends on what you think rates will do and how much flexibility you need. Splitting your loan across different terms means you're not fully locked in and you get regular opportunities to reassess without paying break costs on your entire balance.
What costs should I expect when changing lenders?
Typically between $800 and $1,200 in legal fees to discharge and register the mortgage, plus $600 to $900 for a valuation. Some lenders cover these as part of their switching offer, so factor that into your comparison.