How Much Can You Spend in Retirement—Without Running Out?
By Pacific Wealth (NZ)
Retirement planning isn’t just about building a nest egg—it’s about turning that nest egg into a reliable, sustainable income that supports the life you want. Below, we share a simple, evidence-based framework for setting a safe spending rate in retirement, based on living in New Zealand.
What does a “typical” retirement cost in New Zealand?
A useful benchmark is the New Zealand Retirement Expenditure Guidelines, which outline two lifestyle levels:
- No Frills: covers the basics and a modest lifestyle
- Choices: a more comfortable lifestyle with some extras
Indicative annual budgets (latest published figures referenced in the script):
- Two-person metro household: about $47,000 (No Frills) to $90,000 (Choices)
- Single person: about $36,000 to $40,000
Everyone is different, of course, but these numbers provide helpful reference points when you’re mapping out your own plan.
Three practical withdrawal methods (with $500,000 example)
Below are three plain-English strategies for turning investments into income. Think of them as starting points you can tailor over time.
1) Retire at 65 and index your income (the “4% + inflation” method)
- How it works: Withdraw 4% of your initial portfolio in year one and increase that dollar amount each year with inflation.
- $500,000 example: $20,000 in year one, then adjust upward annually to keep your purchasing power.
- Why people like it: Keeps your real (inflation-adjusted) income steady.
- Trade-offs: More conservative starting income than a flat 5% draw.
2) Retire at 65 and keep the dollars flat (the “5% level” method)
- How it works: Withdraw 5% of your initial portfolio each year, no inflation increases.
- $500,000 example: $25,000 every year (nominal), which buys a little less over time as prices rise.
- Why people like it: Higher income early on, which often lines up with higher travel/activities in the early years.
- Trade-offs: Purchasing power declines gradually.
3) Delay retirement to 70 and start higher
- How it works: Retire later and draw about 6% a year (no inflation increases).
- $500,000 example: $30,000 in year one. Plus, you’ve had five extra years for your investments to grow.
- Trade-offs: You work longer, but may start with more income and a larger portfolio.
Why these work: In modelling (50% growth assets like shares / 50% defensive assets like cash & bonds), the 4% (inflation-adjusted) and 5% (level) approaches show similar probabilities of success over a typical retirement horizon. Projections often use Monte Carlo simulations to illustrate ranges of outcomes (e.g., 25th/50th/75th percentiles). Your actual results will vary with markets and longevity.
Want to preserve capital for the next generation?
If your priority is to maintain the real value of your investments (e.g., to leave a legacy), you’ll likely need a more conservative draw—around 2% per year.
- $500,000 example: $10,000 per year.
- Trade-off: You’ll need roughly double the starting capital to generate the same spend as the 4% approach.
Snapshot: comparing starting incomes on $500,000
| Approach | Index for inflation? | Starting income on $500k | What it feels like |
|---|---|---|---|
| 4% at 65 | Yes (keeps purchasing power) | $20,000 (rises with CPI) | Steady real income; conservative start |
| 5% at 65 | No | $25,000 (flat $) | Higher early income; erodes with inflation |
| 6% at 70 | No | $30,000 (flat $) | Later start, higher initial draw |
| 2% preserve capital | Yes (goal is to preserve real value) | $10,000 | Legacy-focused; needs more assets to spend more |
Figures are illustrative only; actual suitability depends on your full situation.
How to choose your spending rule
- Anchor to your lifestyle
Start with your likely spending (use the NZ guidelines as a sense-check), then layer in NZ Super/overseas pensions, KiwiSaver, and other investments. - Match risk tolerance to method
Prefer stability of purchasing power? Consider 4% + inflation.
Want more early-retirement fun? 5% level draw can fit the “go-go” years.
Focused on legacy? Consider ~2% draws. - Review annually
Markets move, life changes. Re-test your plan each year and adjust spending, asset mix, or retirement age as needed.
The bottom line
Your retirement isn’t a single phase—it evolves. A disciplined withdrawal rule, combined with diversified investing and regular reviews, can help you spend confidently without the constant fear of running out. If you’d like help tailoring a drawdown strategy to your goals (and integrating NZ Super, KiwiSaver, and any foreign pensions), we’re here to help.
