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How to get the best term deposit rate in New Zealand
A term deposit is one of the simplest ways to earn guaranteed interest on your savings — but choosing the right term, provider and tax structure can make a meaningful difference to your return. This guide covers everything NZ savers need to know before locking in a rate.
What is a term deposit and how does it work?
A term deposit (sometimes called a fixed-term investment) is a bank product where you deposit a lump sum for a set period — from as little as 30 days to 5 years. In return, the bank pays you a fixed interest rate that won't change for the life of the term, regardless of what happens to the OCR or market rates.
- How interest is paid
- Most NZ banks let you choose: monthly, quarterly, at maturity or reinvested. Shorter payment intervals slightly reduce the effective rate because the bank pays out earlier, but they provide regular income — useful for retirees.
- Early withdrawal
- Breaking a term deposit before maturity usually triggers a penalty — typically a reduced interest rate (often 1–2% below the agreed rate). Some banks may waive the penalty in cases of hardship, but it's not guaranteed.
- Minimum deposit
- Most NZ banks require NZ$1,000 to NZ$5,000 to open a term deposit. Some providers — particularly online-only banks — offer lower minimums.
Short, medium or long — How to choose the right term
The term you choose affects both the interest rate and how long your money is locked away. There's no single best answer — it depends on when you'll need the funds and where you think rates are headed.
1–3 months
Lowest rates but maximum flexibility. Useful as a holding strategy when you expect rates to rise or need access to funds soon.
6–12 months
The most popular choice among NZ savers. Offers a competitive rate while keeping re-investment options open within a year. Suits most everyday savers.
2–5 years
Locks in today's rate for longer — useful if rates are high and expected to fall. Best for money you definitely won't need in the near future.
Strategy — term deposit laddering
Instead of putting all your savings into one term, split it across multiple deposits with staggered maturity dates — for example, equal amounts at 6, 12, 18 and 24 months. As each deposit matures, reinvest it at the longest rung. Laddering gives you regular access to a portion of your funds while still capturing longer-term rates. It also reduces the risk of locking everything in just before rates rise.
Term deposit vs savings account — Which is better?
Term Deposit
Your rate is locked and guaranteed for the full term. You cannot access the money without a penalty. Ideal when you have a lump sum you don't need for a specific period.
- Best for
- Savers who want certainty, are building towards a goal with a known timeline, or want to protect savings from impulsive spending.
- Watch out
- No access to funds. If rates rise, you're stuck at the old rate until maturity.
Savings Account
The rate can change at any time. You can usually access your money instantly or with short notice. Rates are typically lower than term deposits.
- Best for
- Emergency funds, short-term savings where you may need quick access, or when rates are rising and you want to stay flexible.
- Watch out
- Banks can cut the rate without warning. Bonus-rate conditions (e.g. no withdrawals per month) can be hard to maintain.
Tip — consider using both
A common approach is to keep 3–6 months of expenses in a savings account for emergencies, then put anything above that into term deposits for the higher guaranteed return. This way you get liquidity where you need it and a better rate on the rest.
PIE term deposits vs standard interest
In New Zealand, interest earned on a standard term deposit is taxed at your marginal income tax rate — up to 33% (or 39% for income over $180,000). A PIE term deposit (Portfolio Investment Entity) is taxed at your prescribed investor rate (PIR), which caps at 28%.
Standard term depositTaxed up to 39%At your marginal tax rate (RWT)
vs
PIE term depositTaxed up to 28%At your prescribed investor rate (PIR)
- Who benefits most from PIE
- Anyone earning over $48,000 per year benefits because their marginal RWT rate (30% or 33%) exceeds the PIR cap of 28%. For those earning over $180,000, the tax saving is even larger — 39% vs 28%.
- Is the headline rate lower on PIE?
- Often yes — but the after-tax return can be higher. Always compare the after-tax rate, not the headline rate. For example, 4.00% taxed at 28% leaves 2.88%, while 4.20% taxed at 33% leaves only 2.81%.
Deposit protection scheme — Are your savings safe?
New Zealand's Depositor Compensation Scheme (DCS), managed by the RBNZ, protects eligible deposits up to $100,000 per depositor per institution. This covers term deposits, savings accounts and transaction accounts at licensed banks, building societies and credit unions.
Tip — spreading deposits across banks
If you have more than $100,000 to invest in term deposits, consider splitting your funds across different licensed institutions. Each institution carries its own $100,000 protection limit, so spreading deposits effectively increases your total coverage. Joint account holders each receive separate $100,000 coverage at the same bank.
Term deposit FAQ
What happens when my term deposit matures?
Your bank will notify you before the maturity date. You typically have a grace period (often 7 days) to decide: withdraw the funds, reinvest at a new rate, or change the term. If you do nothing, most banks automatically roll the deposit into a new term at the current rate — which may be lower than what you were earning.
Can I add money to an existing term deposit?
No. Once a term deposit is opened, the amount is fixed for the entire term. If you want to invest additional savings, you'll need to open a new term deposit — potentially at a different rate.
Are term deposits worth it when rates are falling?
Potentially yes — locking in a rate before further cuts means you keep earning the higher rate while new deposits offer less. However, if you expect rates to rise again soon, shorter terms give you flexibility to reinvest at better rates. A laddering strategy can help balance both scenarios.
How are term deposit rates set in NZ?
Banks set term deposit rates based on wholesale funding costs, the Official Cash Rate (OCR), competitive pressure and their own funding needs. When the RBNZ lowers the OCR, term deposit rates tend to follow — but not always immediately or by the same amount. That's why comparing across providers matters.
Should I choose a PIE or standard term deposit?
If your annual income is above $48,000, a PIE term deposit will almost always give you a better after-tax return because the maximum PIR (28%) is lower than the marginal tax rate (30–39%) that applies to standard interest. Compare the after-tax return, not just the headline rate.
What is the minimum amount for a term deposit in NZ?
Most major banks (ANZ, ASB, BNZ, Westpac, Kiwibank) require between NZ$1,000 and NZ$5,000. Some smaller providers and online-focused banks accept lower amounts. Check the minimum deposit column in the table above to compare.