Refinance & Save

Refinance Your Mortgage in New Zealand

Most Kiwis stick with their bank and never check if there's a better deal. We compare your mortgage against 25+ lenders, and if we can save you money, we'll show you exactly how much.

Our service is free. We get paid by the lender, not by you.

100% Free Service
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25+ Lenders Compared
Live rates
Best home loan rates right now
Updated today
Westpac
6 months
5.99%
ASB
1 year
5.49%
Kiwibank
18 months
5.29%
Co-operative Bank
2 years Best
5.19%
SBS Bank
3 years
5.35%
Unity Money
5 years
5.69%
15+ lenders compared
Free service
No Cost to you
100% online, nationwide
Refinance your mortgage NZ - Simpler Mortgages
Your Savings

How Much Could You Save by Refinancing?

The savings from refinancing depend on your loan size, your current rate, available rates in the market, and whether you combine refinancing with loan restructuring.

Small changes compound over time. On a large mortgage, even a 0.5% rate difference can mean tens of thousands over the life of the loan.

We'll run your actual numbers
Here's what we check during your free review
  • Your current rate and term
    What you're paying now and how many years are left on the loan.
  • Rates from 15+ lenders
    What every lender on our panel could offer you today.
  • Any break fees that apply
    Whether leaving your current fixed rate early would cost you, and how much.
  • Cashback offers you qualify for
    Many lenders pay cash contributions when you refinance. We'll show you which ones.
  • Restructuring opportunities
    Fortnightly payments, loan splits, and keeping repayments level when rates drop. Small tweaks that shave years off the loan.
Our Proprietary System

How Mortgage Match Works

Most brokers help you refinance once and move on. We don't. Mortgage Match is our ongoing mortgage management system that keeps your home loan optimised long after settlement.

01
Step 01

Refinance

We compare your current deal against every lender in the market. If someone's offering a better rate, we move you and handle all the paperwork.

02
Step 02

Restructure

We optimise your loan structure by splitting across terms, switching to fortnightly payments, or keeping repayments at the higher level when rates drop. These "hacks" compound over time.

03
Step 03

Monitor & Match

Every 6 to 12 months, we review your mortgage again. When rates move or a better deal appears, we act. You don't have to think about it.

Timing

When Should You Refinance Your Mortgage?

Not sure if now's the right time? Here are the most common triggers that tell us it's worth taking a look.

When to refinance your mortgage NZ - Simpler Mortgages

Your fixed term is expiring

The easiest time to switch. No break fees, full flexibility to move to the best deal. Start looking 4 to 6 weeks before expiry.

Rates have dropped since you fixed

If current rates are lower than what you're paying, it may be worth breaking early. The savings can outweigh the break fee. We'll run the numbers for you.

Your life has changed

New baby, pay rise, inheritance, partner moving in. Changes in income or expenses can mean your current structure no longer fits.

You've built equity

If your home has increased in value or you've paid down your loan, you may now qualify for better rates, especially if you've crossed the 20% equity threshold and can drop low-equity margins.

You've been with the same bank for years

Banks compete harder for new customers than existing ones. If you've never compared, you're almost certainly not on the best deal.

You want to consolidate debt

Rolling credit cards or personal loans into your mortgage at a lower rate can reduce total repayments. Just be careful: spreading short-term debt over 25 years means you pay more interest overall unless you increase repayments.

Not sure? That's what we're here for.

A free 15-minute chat is all it takes to find out if refinancing makes sense for you.

Break Fees

What About Break Fees?

This is the number one question people have about refinancing mid fixed term. Here's how it actually works.

What is a break fee?

A break fee (also called an early repayment charge) is what your bank charges if you repay or refinance a fixed-rate mortgage before the term ends.

Under the Credit Contracts and Consumer Finance Act 2003 (CCCFA), borrowers have the right to repay their loans in full at any time (Section 50). Lenders are allowed to charge a "reasonable estimate of their loss" on full prepayment (Section 54).

The key principle: banks cannot profit from break fees. They can only recover their actual losses. Consumer Protection NZ states: "Lenders cannot earn a profit from fees. Any unreasonable fees can be challenged in court and either cancelled or reduced."

Source: Consumer Protection NZ, Credit Contracts and Consumer Finance Act

How banks calculate break fees

Most banks use what's called the "safe harbour formula", a standard method set out in the CCCF Regulations. According to the Commerce Commission, "if a creditor uses the safe harbour formula, it is assumed that its estimate of loss is reasonable." The formula is based on the movement in interest rates between when you fixed and now.

Banks are allowed to use their own method instead, but any alternative formula still has to produce a reasonable estimate of their actual loss.

Source: Commerce Commission, Mortgage break fees investigation

When are break fees low or zero?

Because break fees are based on the bank's actual loss, the direction of interest rates matters.

Current rates higher than your fixed rate

The bank hasn't lost anything by you leaving. They can re-lend that money at a higher rate, so break fees can be minimal or zero.

Current rates dropped since you fixed

The bank would be re-lending that money at a lower rate, so the break fee reflects that gap.

The key question: is the saving from a lower rate plus cashback bigger than the break fee? That's exactly what we calculate for you, for free.
Scenario Break Fee Likely Worth Considering?
Rates have risen since you fixed Low or zero Often yes
Rates are similar to when you fixed Small Depends on cashback offers and the rate gap
Rates have dropped since you fixed Can be significant Run the numbers. Sometimes still yes.
Short time left on your fixed term Usually smaller Often better to wait until expiry

The only way to know your exact break fee is to ask your bank directly. They'll give you a specific quote based on your loan and current rates. We can help you request this and compare it against your potential savings.

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Compare Your Options

Should You Refinance or Just Refix?

Refinancing (switching to a different bank) isn't always the best move. Sometimes renegotiating with your current bank gets you a better result. The right choice depends on your specific numbers.

Simpler Mortgages
Option A
Refinance
Switch to a different bank
Option B
Refix
Stay with your current bank
Rate competitiveness

New banks compete hard for new customers and may offer better rates than you'd get sticking around.

Your current bank may match a competitor's offer if they know you're considering leaving.

Cashback

Typically 0.85% to 1.25% of the loan amount, offered to attract new customers.

Rarely offered, but 0.3% to 0.5% when it is.

Paperwork

Full new application, credit check, and legal transfer.

Minimal. Usually just confirming a new rate.

Costs

Legal fees and a potential break fee if breaking early. Often offset by cashback.

Usually free.

Clawback risk

Cashback is repayable on a pro-rata basis if you move again within the clawback period (typically 3 to 4 years).

None.

Timeframe

Takes weeks. New application, assessment, and legal transfer.

Can often be done in days.

Our approach

We crunch the numbers on both options (the break fee if any, the new rate, the cashback, the clawback period, and the legal costs) and recommend whichever leaves you better off. If refixing with your current bank is the smarter move, we'll tell you and negotiate on your behalf anyway.

Cashback Offers

Bank Cashback Offers: What to Know

When you switch banks, the new lender often offers a cash incentive to win your business. It's worth understanding how these work.

How much cashback can you get?

Cashback is typically a percentage of the loan amount you're borrowing. SBS currently leads the market at a permanent 1.25%, with the main banks sitting between 0.80% and 1.00% and moving up and down with the refinance market.

Worked example (SBS 1.25%)
$500,000
Loan amount
×
1.25%
Cashback rate
=
$6,250
In your pocket

Illustrative only. Actual offers depend on the lender, loan size, and eligibility at the time.

Most banks require a minimum loan size to qualify for cashback, often around $250,000. Simple refixing with your existing bank usually doesn't qualify. You need to be taking out a new loan, either buying a new property or refinancing from another lender.

What can cashback be used for?

You can use the cashback for whatever you like. In practice, most people put it toward:

Legal fees
Your lawyer handling the loan transfer and discharge.
Break fees
Any early repayment charge on your existing fixed rate.
Cash in hand
Savings, home improvements, or straight back onto the mortgage.

The catch: clawback periods

Cashback isn't a free gift. If you leave the bank before a specified period is up, you'll need to repay some or all of it. This period, the "clawback period", is typically three to four years depending on the lender.

Since 2024, clawbacks are pro-rata. Following the Commerce Commission's review of competition in banking, the clawback framework has been standardised across lenders. If you refinance or repay your loan before the clawback period is up, the amount you owe back drops in line with how much of the period is remaining. Under the previous system you might have owed the full amount until a cut-off date.
Our View
Don't let cashback drive the decision

Cashback is a nice bonus, but it shouldn't be the main reason to switch. A better interest rate saves you far more over the life of the loan than a one-off payment. We focus on the total picture: rate, loan structure, break fees, and cashback combined. Not just the cashback headline.

Get a Full Refinance Review
Loan Restructuring

Restructuring Your Mortgage for Maximum Savings

Refinancing gets you a better rate. Restructuring makes sure your loan is set up to save you the most money over time.

Strategies we use
01
Split your loan across terms
Fix part for 1 year (lower rate) and part for 2 to 3 years (certainty). When the shorter portion expires, you refix at whatever's best at the time. It gives you the best of both worlds instead of picking one term for the whole loan.
02
Keep repayments at the old level
When your rate drops, don't reduce your repayments. The extra amount goes straight to principal, cutting years off your mortgage and saving you serious interest over the long run.
03
Switch to fortnightly payments
26 fortnightly payments a year is equivalent to 13 monthly payments instead of 12. That one extra payment per year makes a significant difference over the life of the loan.
04
Revolving credit portion
Park your income in a revolving credit facility against part of your mortgage. You only pay interest on the net balance, which can save thousands if you maintain a regular income flow through it.
05
Offset accounts
Similar idea to revolving credit, but your savings sit in a separate account that offsets your mortgage balance. Not all banks offer this, so the choice of lender matters.
Mortgage restructuring - Simpler Mortgages
Tailored to you
The right mix depends on your situation

We'll recommend the right combination based on your income, goals, and how quickly you want to be mortgage free.

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Client Reviews
5.0

What our clients say

Don't just take our word for it, hear from the people we've helped.

Why Simpler

Why Refinance with Simpler?

Here's what you actually get when you work with us, and what each of those things means for you.

What You Get
What That Means
Free service
We're paid by the lender. You don't pay a cent unless it's something complex, and we'll tell you upfront if that's the case.
25+ lenders compared
We check every bank and specialist lender on our panel, not just the big four. The right deal for you might be from a name you haven't heard of.
Ongoing management
Mortgage Match means we review your loan every 6 to 12 months, not just once at the start. When a better deal shows up, we'll flag it.
Independent advice
We recommend the best deal for you, not the bank that pays us the most. No one lender has a say in what we put in front of you.
FAQs

Refinancing FAQs

The questions we hear most from homeowners thinking about refinancing in NZ.

If you haven't compared rates in the last 12 months, there's a good chance you could save money. It costs nothing to check. We'll run the numbers and tell you honestly whether it's worth switching or staying.

A break fee is what your bank charges if you end a fixed-rate mortgage early. Under the Credit Contracts and Consumer Finance Act 2003, lenders can only charge a "reasonable estimate of their loss," so they cannot profit from break fees. If current rates are higher than your fixed rate, the break fee is often minimal or zero.

Our service is free. The main costs involved are legal fees for transferring the loan and any break fee on your existing fixed rate if you're breaking mid-term. In many cases, the cashback offered by the new bank more than offsets these costs, but we'll run the full picture for you before recommending a move.

It depends on the lender, the complexity of your application, and how quickly you can provide supporting documents. We handle the application, negotiate the rate, and coordinate with your lawyer. We'll give you a realistic timeframe once we know your situation.

Yes, though your options may be more limited and you might pay a low-equity margin with some lenders. If your home has increased in value since you bought it, you may have more equity than you think. We can check based on recent valuations.

Refinancing means switching to a different bank. Refixing means locking in a new rate with your current bank at the end of a fixed term. We compare both options and recommend whichever leaves you better off.

A mortgage application creates a credit enquiry, which has a small, temporary impact on your score. If you're refinancing (not taking on additional debt on top of your existing mortgage), it shouldn't be a significant concern.

When banks offer a cashback to attract new customers, the cashback typically comes with a clawback period (usually three to four years). If you refinance or repay the loan before the clawback period ends, you'll need to repay some of the cashback on a pro-rata basis. We factor this into any recommendation.

At a minimum, every time a fixed term expires. A proactive approach is to review every 6 to 12 months so you're never on a rate that's out of step with the market. That's exactly what our Mortgage Match service does.

25+
Lender Partners
Free 15-minute chat

See What You Could Save

Before you stick with your current lender, have a 15-minute chat with us. We'll help you work out:

  • Whether breaking your fixed term now beats waiting it out
  • Exactly what break fee your current lender will charge
  • Which lender is offering the best cashback to switch right now
  • How much you'd save in total over the life of your loan
100% Free Service
Independent Advice
25+ Lenders Compared
See what you could save by refinancing your mortgage with Simpler