Mortgage Cash Back in New Zealand: How Much and Is It Worth It?

A mortgage cash back is a lump sum a bank pays you for taking out a home loan with it. In New Zealand the offer usually sits around 0.8 to 0.9 percent of the amount borrowed, so a $600,000 loan brings about $5,000. Negotiated offers can run higher, and our mortgage pages are regularly updated to show the best cash back our advisers are seeing. You might also hear this called a cashback or a cash contribution.

The money is paid into your account within weeks of the loan starting, and you can spend it however you like. In return you agree to keep the loan with the bank for three or four years, the clawback period. Leaving earlier means repaying part of the money, the clawback.

Taking the cash does not mean paying a higher interest rate. Banks negotiate the rate and the cash as separate parts of an offer, they generally give the same rates to new and existing customers, and the largest often advertise rates identical to one another. With rates matched, cash is where they compete. A new customer is typically offered close to 1 percent, while an existing customer may be offered 0.25 to 0.4 percent to stay. Banks pay most for arrival and less for loyalty, and either payment usually has to be asked for.

The advantage goes to the borrower who makes banks compete each time a fixed term and a clawback period end. The result may be a move, a payment to stay, or a sharper rate.

Whether a cash back is worth pursuing depends on where you stand. A first home buyer needs a lender anyway, so the job is to compare complete offers: rate, fees, loan features and cash. Someone who already has a mortgage and whose clawback period and fixed term have both ended can ask the current bank and a rival what each will pay. A borrower still inside a clawback period, part-way through a fixed term, or likely to sell within a few years should value the cash more cautiously, because some of it may go back.

In each case the order of decisions is usually the same. Check the loan suits you, which between the major banks it usually will, then negotiate the cash. If more than one suitable offer remains, compare the rate, cash, fees and cost of leaving on the same basis.

How much cash back can you get?

Banks set the offer as a percentage of the new lending, which over recent years has ranged from about 0.6 percent to a little over 1 percent. At 0.85 percent, a $400,000 loan brings $3,400, a $600,000 loan $5,100 and a $1 million loan $8,500.

Published offers have included minimum lending of $200,000 or $250,000 and maximum payments of up to $30,000. Both differ by bank and by campaign.

Offers rise and fall with competition and interest rates. In an unusually aggressive burst in November 2025, the largest banks lifted theirs to 1.5 percent, and the following month a record $5.8 billion of home lending changed banks. Offers change and the best are negotiated, so treat any percentage you read, including the ones here, as a guide.

Where your own offer lands depends on:

• The size of the loan. The percentage applies to new lending, so bigger loans bring bigger payments, up to the cap.
• Your deposit or equity. More equity generally strengthens your negotiating position, although some first home offers pay their full fixed amount to borrowers with a deposit as low as 5 percent.
• Whether it is your first home. Some banks set a floor of about $5,000 for first home buyers, whatever the loan size above their minimum.
• Whether the lending is new to the bank. New lending attracts the full offer. Refixing with your current bank brings a smaller payment, if any, and usually only when all your lending is coming off a fixed term. A top-up to an existing loan is sometimes negotiable.
• Whether you ask. Banks advertise their first home offers and rarely their best general ones, so the figure is negotiated case by case.

Can you collect a cash back more than once?

Yes. Once a clawback period ends, the cash back agreement no longer holds you to the bank, though any fixed term still running does. If another bank will match your rate, moving your mortgage brings a new cash back, a legal bill and a new clawback period.

Take a $600,000 loan at 5 percent over 25 years. After four years the balance is about $547,000, and a cash back of 0.85 percent on it is about $4,600. Allow $2,000 for legal costs and the move nets $2,600. Repeat at years 8, 12 and 16 and the payments shrink with the balance, to a net total of about $6,700. At 1.2 percent the total is about $12,800. By year 20 the balance is under $200,000, below the minimum loan sizes banks have published. The figures show scale and are not a forecast. They assume the rate stays at 5 percent, each move costs $2,000 in legal fees, and similar offers remain available.

The sums are worth having, and larger loans and better negotiated offers improve them. The loan itself still matters more than the cash.

Each move is also a full application under the lending rules of the day, covering income, spending, other assets, and the property's value. Repeat moves between banks over a period of years suit borrowers with stable, easily evidenced income, comfortable equity and loan portions timed to mature together. A borrower whose income has dropped, who has become self-employed, or whose property has lost value may be offered less or declined. Any portion of the loan still fixed usually attracts a break fee.

Staying or moving: a worked example

Take a couple with $600,000 owing, all of it coming off a fixed term next month, and a clawback period which ended last year. A rival bank offers a cash back of 0.9 percent, or $5,400. Their own bank, asked for its best position, offers 0.4 percent to stay, or $2,400. Both quote the same one-year rate.

Moving costs about $2,000 in legal fees, so the rival's offer nets $3,400, which is $1,000 more than staying. For the extra $1,000 the couple would complete a full application, move their everyday banking and start a new three-year clawback period. Whether the payment to stay carries a clawback of its own is a question to put to their bank.

Change the figures and the answer changes. At 1.2 percent the rival's offer is $7,200 and nets $5,200, and if the current bank offers only 0.25 percent to stay, or $1,500, moving is clearly worth it. A break fee on lending still fixed, or part of an earlier cash back still owed, comes straight off the rival's offer and can turn it negative. Timing a review for the end of both the fixed term and the clawback period avoids both.

The couple's circumstances also count. If they expect to sell, or to repay a large part of the loan, within three years, the smaller payment with fewer conditions may be the better one. If the rival has an offset account they would use and their own bank has none, the move is worth more than $1,000 suggests. One mortgage adviser told RNZ his firm had arranged more payments to stay than refinances, because after legal fees the two often came out about the same.

Sometimes the mortgage interest rates differ, usually because a smaller lender offers a lower rate and no cash. Compare the interest saved over the fixed term you would take. On $600,000, a rate 0.20 percentage points lower saves about $1,200 a year. As a rough screen, spread the cash back across the years of the clawback period. At 0.9 percent over three years it equals about 0.30 percentage points a year, so the cheaper lender needs a rate more than 0.30 points lower to win on price. The screen holds only where three years is the period being compared. If you would fix for one year, compare the known rates over that year and treat later rates as unknown. The home loan comparison calculator the banks built after the Commerce Commission studied personal banking does the fuller version, combining rate, fees and cash back for up to three offers.

Whatever the numbers, get each position in writing: your current bank's best offer to stay, the rival's complete offer, and the exact cost of leaving today.

Check the term on any new loan as well, because if it is written over a fresh 30 years, repayments fall, cashflow improves, though the debt lasts longer.

What to check in the clawback agreement

Every cash back comes with a signed agreement, and the methods differ. Some banks reduce the amount owed daily and some in yearly steps. One major bank asks for all of it back in the first year, 66 percent in the second and 33 percent in the third. The Commerce Commission recommended in 2024 that every lender reduce the amount monthly. Read yours for:

• How long it runs. Three years is common, and some banks ask for four.
• How the amount owed falls over time: daily, monthly, in yearly steps, or not at all.
• What triggers repayment. Refinancing elsewhere, repaying the loan and selling the property are typical.
• What else it covers. At one major bank, moving your salary to another bank can trigger a repayment.
• Whether a large lump-sum repayment counts as a trigger.

The signed agreement sets out the formula, and your bank confirms the exact figure in writing before any move. A clawback is also separate from a break fee, which a bank may charge when a fixed-rate loan is repaid early. Leave part-way through a fixed term and inside the clawback period, and you can owe both.

Why banks pay cash instead of cutting rates

A rate cut goes to every borrower the bank has, as each loan comes up for refixing. A cash back goes only to the customer being won or kept, which makes it the cheaper way to compete and explains why the amount is negotiable.

Australian banks paid flat sums of $2,000 to $5,000 during their own refinancing contest and mostly withdrew them in 2023. New Zealand's offers have persisted, and because they are set as a percentage they grow with the loan.

Is a cash back taxed?

Under Inland Revenue's draft view, a cash back on a loan used privately, such as for your own home, creates no income tax obligation. The draft guidance was released for comment in 2026 and had not been finalised as at September 2026. Where the loan funds a rental property, the draft counts the payment in the final year of the loan, where it offsets deductible interest. In Inland Revenue's own example, a $10,000 cash back set against $7,000 of final-year interest leaves $3,000 of taxable income. Inland Revenue says its drafts may not be relied on, so anyone with rental or mixed-use lending should confirm the treatment with an accountant before acting.

What to do with the money

The size of a cash back matters less than where it ends up. Purchase, legal and moving costs come first. A household with no cash reserve could reasonably keep the rest as the start of an emergency fund. Any debt dearer than the mortgage, such as a credit card or car loan, is worth clearing next.

For many borrowers, reducing the mortgage is a strong long-term use of whatever remains. On a $600,000 mortgage at 5 percent with 25 years to run, $5,000 paid off the balance removes roughly $12,000 of future interest and ends the loan about five months sooner. The illustration assumes the rate stays at 5 percent and repayments do not fall. A lump sum paid into a fixed loan can trigger an early repayment charge, so hold the money in savings or an offset account until the next refix.

When the bank matters more than the cash

Between the major banks, home loans are more alike than different, so for most borrowers the cash and the rate decide. The differences show up in particular cases. Marcus Mannering, wealth and lending specialist at Become Wealth, explains:

"The big banks' home loans are more alike than different, so for most people the cash and the rate settle it. The exceptions are how a bank treats self-employed income, whether it offers an offset or revolving credit account, and how it lets you split the loan. I would check those first, then take the best cash."

Between the major banks the loans are usually alike, so the bigger cash back can decide. The exceptions are borrowers whose circumstances one bank handles better than another, and for them the loan comes first.

Our lending team can compare your current bank's best offer to stay with competing offers on the same basis, counting the rate, cash back, legal costs, break fee and any clawback owed. You then see whether staying or moving leaves you ahead. The first conversation is complimentary, and you can book one here.