For NZ retirees, term deposits play an important role — providing predictable income, capital preservation, and peace of mind. But they shouldn’t be the only tool. Here’s how to use them effectively.
For NZ retirees: keep 2–3 years of living expenses in term deposits or savings accounts to fund near-term withdrawals. Ladder across 3-month, 6-month, and 12-month terms for regular liquidity. Keep the remainder in a balanced or growth index fund for long-run purchasing power protection. NZ Super + term deposit interest + modest drawdown from a growth fund covers most retiree income needs without excessive risk.
Why Retirees Need a Different Approach
Working-age investors can ride out market downturns — they’re not selling assets, they’re buying more. Retirees face a different problem: sequence of returns risk.
If you’re drawing $2,000/month from your portfolio and the market drops 30% in year one of retirement:
- You’re selling units at depressed prices
- The portfolio is permanently smaller
- Future recovery can’t fully compensate for early losses
Term deposits protect against this risk for the near-term portion of your portfolio — funds you’ll spend in the next 2–3 years should not be in volatile assets.
The Two-Bucket Strategy
The most practical retiree approach:
Bucket 1 — Cash + Term Deposits (2–3 years of spending)
- Amount: 2–3 × annual drawdown amount
- Structure: Term deposit ladder (quarterly maturities)
- Purpose: Near-term income, protected from market volatility
Bucket 2 — Growth Assets (5+ year horizon)
- Amount: Remainder of investable assets
- Structure: Balanced or growth index fund (InvestNow, Simplicity, Kernel)
- Purpose: Long-run real return, outpace inflation, replenish Bucket 1
Example: Retiree needing $30,000/year from savings (after NZ Super)
| Bucket | Amount | What’s in it |
|---|---|---|
| Bucket 1 (2 years) | $60,000 | Term deposit ladder |
| Bucket 2 (growth) | $340,000 | Balanced index fund |
| Total | $400,000 |
Every year, withdraw $30,000 from Bucket 1 (maturing term deposits). Annually transfer $30,000 from Bucket 2 to Bucket 1 to refill it (when markets are up). In down years, draw down Bucket 1 without selling growth assets.
Setting Up a Retiree Term Deposit Ladder
Example: $60,000 over 2 years, quarterly maturities
| Tranche | Amount | Term | Matures |
|---|---|---|---|
| 1 | $7,500 | 3 months | Quarter 1 |
| 2 | $7,500 | 6 months | Quarter 2 |
| 3 | $7,500 | 9 months | Quarter 3 |
| 4 | $7,500 | 12 months | Quarter 4 |
| 5 | $7,500 | 15 months | Quarter 5 |
| 6 | $7,500 | 18 months | Quarter 6 |
| 7 | $7,500 | 21 months | Quarter 7 |
| 8 | $7,500 | 24 months | Quarter 8 |
Each quarter, one tranche matures — providing $7,500 toward the quarterly living expenses. Reinvest or spend depending on needs and Bucket 2 refill plan.
How Much Should Be in Term Deposits?
Common guidance: hold 2–3 years of spending in stable assets (cash + term deposits). Less than this creates sequence of returns risk. More than this sacrifices the long-run purchasing power protection that growth assets provide.
The inflation problem with too many term deposits:
At 4.5% term deposit rate with 3% inflation, your real return is approximately 1.5%. After tax (RWT at 33%), your after-tax real return may be close to 0% or slightly negative. Over a 25+ year retirement, a portfolio entirely in term deposits loses significant purchasing power.
Retirees who live until 90 have a 25+ year investment horizon. Part of the portfolio must stay in growth assets.
NZ Super + Term Deposit Income: A Worked Example
Couple, both 67, NZ Super $46,000/year combined (2026), need $65,000/year total
Funding gap: $65,000 − $46,000 = $19,000/year from savings
Portfolio:
- $60,000 in term deposit ladder (3 years’ gap funding at $19,000/year ≈ rounding up for safety)
- $300,000 in Simplicity Balanced Fund
Term deposit interest on $60,000 at 4.5%: $2,700/year Drawdown from growth fund: ~$16,300/year (5.4% drawdown rate on $300,000 — sustainable given 7–8% expected return)
This is a sustainable withdrawal plan. The growth fund continues growing even while small drawdowns occur.
→ See: NZ Retirement Calculator
Tax on Term Deposit Interest for Retirees
Term deposit interest is subject to RWT (Resident Withholding Tax). Banks deduct this at source.
For most retirees with income from NZ Super plus modest investments, their effective tax rate may be lower than the RWT rate the bank deducts. File an IR3 to claim a refund if you’ve had too much RWT deducted.
RWT rates on interest income:
| Income | RWT rate |
|---|---|
| Under $14,000 | 10.5% |
| $14,001–$48,000 | 17.5% |
| $48,001–$70,000 | 30% |
For a couple whose combined income (NZ Super + interest) is under $70,000, RWT at 30% may be deducted — but the effective rate could be lower depending on deductions and credits. Check with an accountant or use MyIR.
The Crown Deposit Guarantee
All eligible deposits at registered NZ banks are covered by the Crown Retail Deposit Guarantee Scheme up to $100,000 per depositor per institution. For retirees with $300,000+ in term deposits, spreading across 3+ institutions ensures full guarantee coverage.
Common Retiree Term Deposit Mistakes
Putting everything in term deposits: Inflation erosion is real over a 20–30 year retirement. Keep 40–60% in growth assets.
All in one term: A single 12-month deposit with no other maturity creates a 12-month liquidity gap. Ladder is better.
Rolling over at the bank’s default rate: Banks often roll deposits at a lower rate than current specials. Compare rates at maturity and negotiate.
Not comparing smaller banks: Heartland Bank and similar often offer 0.3–0.5% more than the major banks — on $200,000, that’s $600–$1,000 extra per year.