# HL-Q131: Choosing a loan Which bank is best to refinance a mortgage with if I'm being offered cash to switch? Borrower: Homeowner considering a switch [Study](https://nzbrands.ai/research/banking/home-lending/) · Collected 11 October 2026 ## chatgpt Answer ID: 6619f544-311b-4f35-b99f-e7271f096c02 If you’re in New Zealand and a bank is offering you cash to refinance, the “best” bank is usually **not the one with the biggest cashback** — it’s the one with the best **total cost over the period you’ll actually stay with them**. Cashback offers can be attractive, but banks often attach conditions such as needing to keep the loan for a set period or repaying some of the cash if you leave early. [MoneyHub NZ](https://www.moneyhub.co.nz/mortgage-cashback.html?utm_source=chatgpt.com) A good shortlist to compare in NZ would be: - ANZ New Zealand — Often competitive on refinance incentives; some offers have been around the 1% range (subject to eligibility and change). [interest.co.nz](https://www.interest.co.nz/borrowing/home-loan-incentives?utm_source=chatgpt.com) - ASB Bank — Worth comparing if you value a strong digital banking experience and existing ASB ecosystem. [ASB Bank](https://www.asb.co.nz/home-loans-mortgages?utm_source=chatgpt.com) - BNZ — Has promoted refinance options that can reduce switching costs, including a process that may avoid separate legal fees for eligible customers. [BNZ](https://www.bnz.co.nz/about-us/news/new-blog-bnz-helps-make-switching-home-loans-easier-with-home-loan-switch?utm_source=chatgpt.com) - Kiwibank — Often competes aggressively for home-loan customers and may suit borrowers wanting a NZ-owned bank. [interest.co.nz](https://www.interest.co.nz/borrowing/home-loan-incentives?utm_source=chatgpt.com) - SBS Bank and The Co-operative Bank — Smaller lenders that can sometimes have attractive cashback or rate offers. [interest.co.nz](https://www.interest.co.nz/borrowing/home-loan-incentives?utm_source=chatgpt.com) A simple way to compare: **1. Calculate the cashback value** - Example: a $500,000 mortgage with a 1% cashback = $5,000. - Check whether there are clawback rules if you refinance again within 2–3 years. [MoneyHub NZ](https://www.moneyhub.co.nz/mortgage-cashback.html?utm_source=chatgpt.com) **2. Compare the interest rate difference** A bank offering $5,000 cashback but charging 0.20% more interest may cost you more over time. **3. Negotiate** Before accepting an offer: - Ask your current bank to match or improve it. - Ask the new bank for a sharper fixed rate **and** cashback. - Ask whether fees (legal, valuation, loan setup) are covered. **4. Consider your mortgage size** - On a very large loan, a small rate difference can outweigh a cashback. - On a smaller loan, cashback can make a bigger difference. If you tell me: 1. your mortgage balance (roughly), 2. your current interest rate and fixed-term expiry date, 3. the cashback offer(s) you’ve been quoted, and 4. whether you’re owner-occupier or investor, I can help work out which offer is likely to be best financially. --- ## gemini Answer ID: a5135785-1d10-463e-b622-59b8b9a21b24 When looking to refinance a mortgage in New Zealand, chasing a cash incentive (cashback) can be tempting, but **the "best" bank is rarely just the one offering the highest upfront cash amount.** Major New Zealand lenders (including ANZ, ASB, BNZ, Westpac, Kiwibank, and SBS Bank) regularly fluctuate their cashback offers—typically ranging between **0.8% and 1.25%** of the total loan amount—to attract switchers. To figure out which option actually leaves you ahead, you need to evaluate the total financial picture rather than just the initial payout. --- ### Key Factors to Consider Beyond the Cash * **Interest Rates vs. Cashback:** A slightly higher cashback offer from a bank with a higher carded interest rate can easily wipe out your cash gains over a 1 to 3-year fixed term. Lower-rate lenders often save you more in total borrowing costs than a generous cashback. * **The "Clawback" Period:** Nearly all NZ banks require you to stay with them for a minimum period—typically **3 years** (though some lenders or packages require up to 4 years). If you sell, repay, or refinance away before that period ends, you will have to repay a pro-rata portion (or 100% if within the first year) of the cashback. * **Refinancing Costs:** Factor in legal fees for discharging and registering your new mortgage, as well as any **break fees** if you are exiting a fixed rate with your current bank early. Many banks will contribute toward your legal fees or let you use part of the cashback to cover them, but you must check the net math. --- ### Step-by-Step Action Plan 1. **Calculate Your Net Position:** Add up the prospective cashback and subtract any break fees and legal transfer costs. $$\text{Net Benefit} = \text{Cashback} - (\text{Break Fees} + \text{Legal Costs})$$ 2. **Compare Total Cost over the Fixed Term:** Run a side-by-side comparison of the total interest paid over your proposed term (e.g., 1 or 2 years fixed) factoring in the competitor's interest rate versus staying put. 3. **Leverage Your Current Bank:** Before making a switch, take a competitor's lower rate or cashback offer to your current bank. Main banks will often match or come close to competitive offers to avoid losing your business. 4. **Consult a Free Mortgage Broker:** Because broker services are generally free to the borrower (paid via lender commissions), they have visibility across all major and challenger banks in New Zealand. A broker can run the exact calculations for your specific loan size and equity position. Are you currently locked into a fixed interest rate with your existing bank, and roughly how much is left on your mortgage balance? --- ## ai-mode Answer ID: 8667f584-a8ab-43c1-9ea1-ce3adc799ed0 When looking to refinance your mortgage for a **cashback offer** in New Zealand, there is no single "best" bank because offers change frequently, and the headline cash amount is only part of the financial equation. Major lenders—including **ANZ** , **ASB** , **BNZ** , **Kiwibank** , **Westpac** , and smaller entities like **The Co-operative Bank** or **SBS Bank** —regularly adjust their refinancing incentives (typically ranging from $3,000 up to around $1% of the total loan amount, depending on your borrowing size). To determine which bank is genuinely best for your specific situation, consider the following key factors: * * **Interest Rates vs. Cashback:** A higher cashback offer is often paired with a slightly higher standard or special fixed interest rate. A lower interest rate from a competitor without a massive cashback can actually save you significantly more money over a 2-to-3-year fixed term than a one-time cash injection. Always calculate the total cost of borrowing ( 𝑅𝑎𝑡𝑒 +𝐹𝑒𝑒𝑠 −𝐶𝑎𝑠ℎ𝑏𝑎𝑐𝑘 ). [MoneyHub NZ] * **Clawback Conditions:** Banks enforce a "clawback" period (usually 3 to 4 years). If you decide to sell, switch banks, or significantly restructure your mortgage before this period ends, you will be required to repay a proportional (or full) amount of the cashback. * **Refinancing/Solicitor Fees:** Moving a mortgage requires a solicitor or legal provider to discharge your old security and register a new one. While some banks offer a contribution toward legal fees on top of or alongside the cashback, others expect you to cover these costs out of pocket. * **Negotiation and Brokers:** Banks rarely put their absolute best unadvertised rates or maximum cashbacks on their public websites. Utilizing a registered **mortgage broker** in New Zealand is usually free for the borrower, and they have the leverage to negotiate behind the scenes across multiple institutions to squeeze out a higher unadvertised cashback or a sharper interest rate. You can compare general market insights via [Canstar New Zealand](https://www.canstar.co.nz/home-loans/whats-on-offer/) or read up-to-date breakdowns on MoneyHub NZ. * If you'd like to narrow this down, please share: * Your **approximate remaining mortgage balance** * Your current **equity or LVR (Loan-to-Value Ratio)** * What **fixed-term length** you are considering I can help you break down whether chasing a cashback or prioritizing a lower interest rate makes more mathematical sense for you. --- ## ai-overviews Answer ID: c38f5d69-0769-41be-86a3-f9a8f4806951 When refinancing a mortgage in New Zealand, the **"best" bank depends heavily on your total loan size, your willingness to negotiate, and how long you plan to stay with that lender.** While challenger banks like SBS Bank lead with standard advertised rates (up to **1.25% cashback**), the "Big Four" (ANZ, ASB, BNZ, and [Westpac](https://www.westpac.co.nz/home-loans-mortgages/first-home/)) aggressively match or exceed these figures—regularly offering **0.8% to 1.0%** (and historically up to **1.5%** during promotional wars) for high-value borrowers switching banks. To maximize your refinancing return, you must weigh upfront cash against long-term interest rates and the bank's "clawback" conditions. * * * New Zealand Mortgage Cashback Offers Lender| Standard Cashback Offer| Minimum Loan / Key Term| Clawback Period ---|---|---|--- **SBS Bank**| **1.25%** (Max $25,000)| Highest open-market percentage.| Typically 3–4 years **The Co-operative Bank**| **1.00%** (Max $30,000)| Requires min. $250,000 loan.| Typically 3 years **ANZ**| **0.90%** (Max $30,000)| Highly negotiable; min $200,000 loan.| 3 years **ASB** / **Westpac**| **Discrete / Negotiable**| Usually ranges around **0.8% – 1.0%** or fixed $5k+ incentives.| 3–4 years **BNZ**| **Discretionary**| Focuses on tailored overall value packages.| 3 years * * * Hidden Rules to Watch For * **The Clawback Trap:** If you switch banks or pay off your loan before the clawback period expires (**usually 3 to 4 years**), you must pay back some or all of the cash. Do not choose a cash offer if you intend to sell or move within 36 months. * **The Interest Rate Math:** A 1% cashback on a $500,000 mortgage yields $5,000 cash. However, if that bank's interest rate is even 0.20% higher than a competitor's over a 3-year term, you will lose roughly $3,000 of that benefit back to the bank in interest. * **Refinancing Costs:** Moving banks isn't free. You will face a **$150–$350 mortgage discharge fee** from your old bank and roughly **$900–$1,200 in legal/conveyancing fees** to register the new mortgage. The cashback must comfortably clear these costs to make financial sense. My Recommendation Instead of choosing blindly based on advertised rates, my primary recommendation is to **leverage amortgage broker / adviser**. Banks treat cashback percentages fluidly and keep their highest offers "under the table". An adviser can pit the Big Four against one another to negotiate a bespoke package combining **low special card rates** alongside a **top-tier cashback**. * * * If you want to map out your net savings, let me know: * What is your approximate **remaining mortgage balance**? * What **interest rate** is your current bank offering you to refix and stay? * How long do you **plan to stay** in your current property? I can help calculate whether a switch genuinely puts more cash in your pocket.