Is a bigger cash back always a better deal?

No. A bigger cash back can come with a longer clawback window or a stricter serviceability policy than a smaller offer from another lender. Compare the whole package — cash back, clawback terms, and eligibility — not just the figure on the letter of offer.

How do I compare two cash back offers with different clawback windows?

Ask each lender exactly what you'd owe at each point across the window — not just its headline length. A window that steps the amount down every year is a different bet to a window of the same length that holds the full amount until the last day.

Does clawback style matter more than the window length?

Often, yes. Two offers can run identical-length clawback windows and still carry very different risk — one stepping the amount down annually, the other holding it in full right up until the cut-off. Ask for the schedule in writing, not just the window's length.

Are refinance cash back offers compared the same way as new lending?

The same four numbers apply — cash back amount, clawback window, clawback style, and how long you expect to stay — but check the lender's serviceability policy for refinance business specifically. Some lenders assess refinances more strictly than new-to-bank applications, which can affect whether the advertised cash back is even attainable.

Can I negotiate the clawback terms on a cash back offer?

Rarely on the clawback clause itself — it's usually standard across a lender's book. What can shift is which lender you use at all, since clawback windows and styles vary between them. That's the actual negotiation: picking the right lender, not haggling over one lender's fine print.

Does AML charge a fee to help me compare cash back offers?

No. In the typical case, the lender pays us once your loan settles — there's no upfront fee for the initial conversation, and comparing cash back offers across the panel doesn't change how we're paid. The rare exception, and any fee, would be agreed with you in writing beforehand.

Home Loans

Comparing Home Loan Cash Back Offers in NZ: The Numbers That Actually Matter

By Kundan Singh, Home Loan Adviser (FSP 512966)24 August 2026

Two people closely reviewing and comparing loan documents side by side at a desk

Photo: Mikhail Nilov / Pexels

A home loan cash back is money the bank hands you as a thank-you for choosing them — and like a boomerang, some of it can fly straight back to them if you leave too soon. Comparing two cash back offers on the size of the cheque alone is how people miss that.

The straight answer: the offer with the bigger number isn't automatically the better deal. Comparing cash back properly means lining up four numbers side by side, not one.

Here's how to actually do that comparison, and where two offers that look identical on the surface can cost you very different amounts.

The Four Numbers You Need Before You Compare Anything

Two cash back offers aren't comparable until you've written down the same four things for each one:

The cash back amount — a percentage of the loan or a flat figure, moving with each lender's current promotion.
The clawback window — how many years you're on the hook to repay some or all of it if you leave.
The clawback style — whether the amount steps down each year or sits at the full figure until the window ends.
Your own expected time in the loan — whether you're likely to sell, refinance, or repay early within that window.

Miss any one of those four and you're not comparing two loans — you're comparing two random numbers off two different letters of offer. If you haven't read what a cash back and a clawback actually are yet, our guide to home loan cash back in NZ covers the basics this one builds on.

Clawback Style Isn't the Same Everywhere

Two offers can run the same length of clawback window and still be very different bets. Some lenders step the amount down each year, so leaving partway through only costs you a fraction of the original cash back. Others hold the full amount liable right up until the last day of the window, then drop it to nil overnight.

A stepped-down clawback rewards you for staying, even partway. A cliff-edge clawback doesn't — one day short of the deadline costs exactly as much as leaving on day one.

(Ask for the actual schedule in writing before you compare. A verbal "it tapers off, don't worry about it" has never once held up against a letter of offer.)

Neither style is automatically worse — it depends on how confident you are about staying put. But you can't weigh that risk if you don't know which style you're looking at, and that detail rarely makes it onto the headline offer.

Magnifying glass held over a printed document, highlighting the fine print — Photo: Vlad Deep / Pexels

New-to-Bank vs Refinance: Does the Comparison Change?

Most cash back offers apply to both a brand-new loan and a refinance from another bank, so the four numbers above still do the heavy lifting either way.

What can genuinely change is the lender's serviceability policy behind the offer. Some lenders run a stricter test on refinance applications than on new-to-bank ones — which matters, because a cash back you can't actually qualify for isn't a real number to compare against anything.

If your situation has shifted since you last borrowed — income, employment type, or existing debt — check eligibility before you get attached to a specific offer. Our page on refinancing an existing home loan walks through what lenders check on a switch.

Why the Bigger Cheque Can Be the Worse Deal

Here's the opinion: the lowest rate or the biggest cash back on paper isn't automatically the cheapest loan once clawback terms and lending policy are priced in. It's easy to yada-yada past the clawback clause and remember only the cheque — don't.

A client came to me after accepting a pre-approval from another adviser offering a lower headline rate plus a $4,000 cash back. What hadn't been shown to them was the clawback clause — refinance or sell within three years, and the $4,000 had to be repaid in full. That lender also ran a stricter serviceability test than others on AML's panel.

When the client's situation changed slightly before settlement, the pre-approval didn't convert. I placed them with a lender whose terms actually fit their plans — no cash back, but a lower total cost once the clawback and the stricter policy were factored out of the equation.

The lesson isn't "never take a cash back." It's that the number on the cheque and the number you actually keep can be two very different figures, and only one of them is designed to grab your attention.

How to Run the Comparison Yourself

You don't need a spreadsheet to do this properly — just the same four numbers, written down for every offer you're weighing up, side by side:

Write down the cash back amount from each offer.
Write down each one's clawback window and clawback style — stepped-down or cliff-edge.
Ask each lender directly what you'd owe at each point across the window, from day one through to the day it ends.
Check whether either lender's serviceability policy is stricter for your situation, since that can rule an offer out entirely.
Weigh all of that against how long you actually expect to stay — not how long you hope to.

Once you've got the clawback and policy differences mapped out, our mortgage calculators are a reasonable starting point for comparing the repayment side of two offers against each other.

If cutting total interest over the life of the loan matters more to you than the cheque on settlement day, our guide on paying off your home loan faster is worth reading alongside this comparison.

How AML Compares Offers Across the Panel

This is the part where an adviser is actually worth having — not producing the biggest cheque, but reading every offer's clawback schedule and serviceability policy against your real plans, not the lender's marketing page. Plenty of advisers promise "no obligation, free advice" without ever mentioning who actually pays for that sentence — it's usually built into someone's rate, not written off entirely.

AML has 20 banks and non-bank lenders on panel — 7 banks, 13 non-bank — plus non-panel access to institutional and sophisticated investors. We compare cash back offers across all of them against your situation, not just whichever one happens to be running a promotion this month.

We reply within 2 business hours, and pre-approval is typically available in as little as 3–5 business days once your documents are ready. Financial advisers are required to disclose who pays them, and in the typical case, the lender pays AML once your loan settles — not you.

AML has settled 200+ home loans since 2017. We're a licensed Financial Advice Provider — AML Financial Services Limited, FSP 714331. Kundan Singh, FSP 512966. Both are on the Financial Service Providers Register — public record, worth checking for any adviser you're comparing offers with.

A cash back that looks free on the letter of offer isn't free until you've read what happens if you leave. Call us before you sign — we'll read the clawback clause so you only have to squint at it once.

Couple sitting at a table with a calculator, working through numbers together — Photo: RDNE Stock project / Pexels