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How Not to Outlive Your Money: Plan with Longevity in Mind
Key takeaways
- Average life expectancy is rising — planning for 20 years in retirement may be insufficient.
- Outliving your money is a statistically more realistic risk than most people realise.
- A more conservative withdrawal rate, spending flexibility, and diversified income sources are the main protection tools.
- A hybrid approach — an annuity for basic needs plus a portfolio for flexibility — guards against both extremes.
- A plan is a living document: revise it every 3–5 years or after a major life change.
The greatest financial risk in retirement is not a market crash — it is outliving your money. And with growing life expectancy, this risk increases with every generation.
Why a longer life complicates planning
Our grandparents' generation planned retirement for 10–15 years after leaving work. Today it is realistic to spend 25–35 years in retirement. A portfolio that would last 20 years at a 4% withdrawal rate will be depleted sooner over a 35-year horizon — unless you adjust the parameters.
Four levers for reducing the risk
- Lower withdrawal rate — a more conservative 3–3.5% gives the portfolio more room to survive a long horizon.
- Spending flexibility — less in bad years, more in good years. This dynamic strategy significantly extends the life of the portfolio.
- Diversified income sources — state pension, possible annuity, portfolio, passive income. No single source is sufficient on its own.
- Continued work — even part-time activity between 65 and 70 significantly reduces dependence on the portfolio.
Sequence of withdrawals: why order matters
Portfolio returns with the same overall average can lead to very different outcomes depending on their order. Poor returns at the beginning of the distribution phase are more dangerous than poor returns in the middle. That is why in the first five years of distributions, keep a cash buffer and avoid selling equities in downturns. More on the transition to the distribution phase in the article how to transition from accumulation to distribution.
A plan is a living, not a static, document
A financial plan drawn up at 55 will be out of date at 70. Health, spending patterns, family situation — all of these change. Revise the plan every 3–5 years or after a major change. To model how long your portfolio will last under various assumptions, use our projection calculator.
FAQ
How long should I plan for in retirement?
A conservative approach says: plan for 30–35 years from the time you leave work. If you have a family history of longevity or retire early (FIRE), comfortably plan for 40 years. Better to have a surplus than a shortfall.
What is sequence-of-returns risk in withdrawals?
The risk that poor market returns at the start of the distribution phase permanently damage the portfolio. Even with the same average return, the order matters: bad years at the beginning are worse than bad years in the middle. It is addressed by a cash buffer and flexible spending.
Will an annuity help with longevity risk?
Yes — a lifetime annuity from an insurer eliminates the risk of outliving your money, because it pays until death regardless of how long you live. For this certainty you pay an implicit insurance premium. The ideal hybrid approach: an annuity for basic expenses, a portfolio for flexibility.