Compare the best term deposit rates in NZ for 2026. Learn how rates are set, how to use a term deposit calculator, tax rules, and strategies to earn more on your savings.
If you have cash sitting in a low-interest account, term deposits are worth a look. A term deposit is one of the simplest, most transparent savings tools there is: you lock a lump sum away for a fixed period and the bank guarantees your rate and your principal in return. This guide explains how NZ term deposit rates work, how to compare them, the tax rules, and how to squeeze out a better return. It’s general information, not financial advice.
You leave a lump sum with a bank or licensed deposit taker for a set period — commonly 30 days to five years — and receive a fixed interest rate for the whole term. At maturity you get your principal back plus the interest earned.
Rates are anchored to the Reserve Bank’s Official Cash Rate (OCR). When the OCR rises, banks’ funding costs go up and deposit rates follow; when it falls, rates ease, usually with a short lag. Banks also weigh competition, their own lending needs and global funding markets. This is why term deposits look most attractive when rates are elevated — locking in a good rate before the OCR falls means you keep earning at the higher rate even as newer deposits drop.
Finding the best rate takes more than a glance at your own bank’s site. Rates change often — sometimes weekly — and the gap between the highest and lowest across institutions can be 0.3–0.6 percentage points or more. On a $50,000 deposit over 12 months, that’s $150–$300 in after-tax interest, so it’s worth 20 minutes of comparison.
The most reliable NZ aggregator is interest.co.nz, which publishes daily-updated rates from banks and deposit takers in one table. A few things to keep in mind: the highest rate isn’t always the longest term; minimum deposits are usually $1,000–$5,000 (sometimes more); interest may be paid at maturity, monthly or annually; and many banks auto-roll at maturity unless you instruct otherwise.
One correction worth making, because it’s widely muddled: the big four (ANZ, ASB, BNZ, Westpac) don’t always lead on rates, and smaller registered banks such as Kiwibank, TSB, SBS Bank, Heartland Bank and The Co-operative Bank often pay more. These are all registered banks — not “non-bank deposit takers.” True non-bank deposit takers are finance companies, credit unions and building societies, which can pay higher rates again but carry their own risk profile (see safety, below). For bank-specific detail, see our guides to Westpac term deposit rates and TSB’s PIE term deposits.
Often pays noticeably less than under old “community rating,” where low-risk homes cross-subsidised high-risk ones.
May pay significantly more — or in some cases Tower may not offer cover at standard terms.
A practical upshot: if Tower quotes you much more than other insurers, that’s a signal about your property’s risk, not just a pricing quirk. Other insurers have been moving toward more risk-reflective pricing too, especially since the 2023 floods and Cyclone Gabrielle.
Before committing, use a term deposit calculator to see what you’ll actually earn after tax. Enter your principal, the gross rate, the term, the interest frequency and your RWT rate, and it will show gross interest, tax deducted and net interest.
A worked example: $30,000 for 12 months at 5.00% p.a., interest paid at maturity, RWT rate 17.5%. Gross interest is $1,500; RWT of 17.5% takes $262.50; net interest is $1,237.50, for $31,237.50 at maturity. If a competitor offered 5.30% on the same terms, your net interest would be about $1,311 — roughly $73.50 more, which matters more on larger sums and longer terms. Sorted’s savings calculator handles this well.
Interest is taxable income, and banks deduct Resident Withholding Tax (RWT) at source before crediting it — so in most cases you don’t have to do anything extra, but you must give your bank the correct rate.
Tower was the first NZ general insurer to use address-level, risk-based pricing. Details change — confirm current information on Tower’s website.
The key point the older guides get wrong: if you provide your IRD number but don’t nominate a rate, the default is 33%; if you don’t provide your IRD number at all, RWT is deducted at the 45% no-notification rate. Choose the rate that matches your marginal tax rate to avoid a bill or an overpayment at year end — and if you’ve been overtaxed, you square it up through your income tax return. Our tax rates guide sets out the brackets in full.
This has genuinely changed. Since 1 July 2025, New Zealand has a Depositor Compensation Scheme (DCS), run by the Reserve Bank, which protects up to $100,000 per depositor, per licensed deposit taker if that institution fails. Importantly, the DCS covers licensed banks and licensed non-bank deposit takers alike (credit unions, building societies and finance companies that are licensed), so the protection is the same up to $100,000 regardless of the institution’s size.
Two practical implications: if you have more than $100,000, spreading it across two institutions keeps the full amount protected; and above the cap — or with an unlicensed entity — an institution’s credit rating and disclosure statement still matter, so check them before investing a large sum with a smaller or non-bank provider.
Term deposits aren’t the only home for surplus cash. On-call savings are fully liquid but pay less and the rate can change any time — best for an emergency fund. KiwiSaver can return more long-term but is locked until 65 (with limited exceptions), so it’s not for short-to-medium-term money; see our KiwiSaver guide. Government bonds offer sovereign-quality credit but their value can move before maturity. Managed or PIE funds offer diversification and potentially higher returns but carry investment risk, with PIE tax capped at 28% for higher earners. And if you have a home loan, a mortgage offset account effectively earns your mortgage rate on your savings, which often beats a term deposit. For most savers with a one-to-five-year horizon who want certainty and no investment risk, a term deposit remains a practical choice.
Compare across several institutions rather than defaulting to your own bank; confirm the minimum and interest-payment structure; give your correct RWT rate (and your IRD number, to avoid the 45% rate); and diarise your maturity date so you’re not auto-rolled into a weaker rate. For a significant sum, consider laddering across two or three terms for flexibility, and check interest.co.nz for current rates before deciding.
Disclaimer: This article is general information about term deposits in New Zealand, not financial or tax advice, and not a recommendation of any institution or product. Interest rates, tax rules and deposit-protection details change — the figures here reflect 2026 and should be confirmed with the institution, Inland Revenue and the Reserve Bank before you act. For current rates see interest.co.nz; for deposit protection see the Reserve Bank (rbnz.govt.nz/dcs); for free guidance see Sorted (sorted.org.nz).
Since 1 July 2024, the government scheme is the Natural Hazards Commission Toka Tū Ake (formerly EQC).
Getting your sum insured right matters most in high-hazard areas — an underinsured home is a real risk in a major event. Confirm current caps and rules at naturalhazards.govt.nz.
They’re anchored to the Reserve Bank’s Official Cash Rate, plus competition, banks’ lending needs and global funding costs. When the OCR rises, deposit rates tend to rise; when it falls, they ease, usually with a short lag.
Not always. Smaller registered banks — such as Kiwibank, TSB, SBS, Heartland and The Co-operative Bank — often pay more than ANZ, ASB, BNZ and Westpac, and licensed non-bank deposit takers can pay more again. Compare current rates before choosing.
Interest is taxable, and banks deduct RWT at source. Choose the rate matching your income (10.5% to 39%). If you give your IRD number but no rate, the default is 33%; if you don’t give your IRD number, it’s 45%. Higher earners can consider a PIE term deposit, taxed at a PIR capped at 28%.
Yes, up to a point. Since 1 July 2025 the Depositor Compensation Scheme protects up to $100,000 per depositor, per licensed deposit taker — covering banks and licensed non-bank deposit takers alike. Spread more than $100,000 across institutions to keep it all protected.
Usually, but breaking a term deposit early typically reduces your interest, and many banks require at least 31 days’ notice to release funds early. Check the early-withdrawal terms before you commit.
Laddering — splitting funds across several terms — means some matures regularly, so you’re never fully locked into one rate for a long time and can reinvest at the best available rate as each matures. It’s a simple way to balance return and flexibility.
Related guides: BNZ Term Deposit.
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