The 4% rule: does it still work?
It’s the most-quoted rule in retirement planning — and one of the most misunderstood. The 4% rule is a useful starting point, not a law of physics. Here’s what it actually says, where it breaks, and how to make it sturdier.
What the rule actually says
The 4% rule says: in your first year of retirement, withdraw about 4% of your portfolio; each year after, increase that dollar amount for inflation. Based on historical U.S. market data, a portfolio doing this had a high chance of lasting roughly 30 years. So a $1,000,000 portfolio supports about $40,000 in year one. It’s a quick way to translate a nest egg into income — use our how-much-to-retire calculator to see the relationship in reverse.
Where it breaks down
- It assumes a fixed 30-year horizon. Retire early or live to 100 and 30 years may not be enough.
- It assumes a particular portfolio and steady, inflation-adjusted spending — real spending is lumpy.
- Sequence-of-returns risk. A bad market in your first few retirement years is far more damaging than the same crash later — the single biggest threat the rule’s average glosses over. See sequence-of-returns risk.
- Today’s starting conditions — valuations and yields — may differ from the historical averages the rule was built on.
How to make withdrawals sturdier
Most planners now treat 4% as a flexible anchor, not a fixed dial. Practical adjustments: be willing to trim spending in down years (guardrails), keep a cash buffer so you’re not selling stocks in a crash, and — most powerfully — cover your essential expenses with guaranteed income so the portfolio only funds the discretionary part.
Where protected income changes the math
The more of your essential spending that’s covered by guaranteed income — Social Security, a pension, or annuity income — the less you must withdraw from your portfolio, and the less a bad early market can hurt you. Some retirees also use the tax-free death benefit and cash value of permanent life insurance as a buffer: a pool to draw from in a down year instead of selling investments at a loss, plus a legacy that lets them spend portfolio assets more freely. These tools don’t replace a sound withdrawal plan — they reduce how much rides on getting the withdrawal rate exactly right.
The bottom line
Use 4% to get in the ballpark, then build in flexibility and as much protected income as you reasonably can. A plan that can bend in a bad year — and that doesn’t force you to sell low — beats a rigid percentage every time.
Frequently asked questions
- What is the 4% rule?
- Withdraw about 4% of your portfolio the first year, then adjust that dollar amount for inflation annually, with a good historical chance of lasting ~30 years. A starting point, not a guarantee.
- Does it still work?
- It’s a reasonable estimate but assumes a fixed horizon, a set portfolio, and steady spending. Lower expected returns, longevity, and sequence risk lead many to treat 4% as flexible.
- How does guaranteed income change it?
- The more essential spending covered by Social Security, a pension, or annuity income, the less you withdraw and the less a crash hurts — reducing reliance on a rigid rate.