Overview
- The 4% rule sets a simple baseline: withdraw 4% of your nest egg in year one and adjust later withdrawals for inflation.
- Historical backtests show the baseline gives a strong chance of lasting through a 30-year retirement under many past market conditions.
- The rule can fail when large losses happen early in retirement because fixed, inflation-adjusted withdrawals force selling into depressed markets and magnify losses.
- The practical update is to keep 4% as a starting point but actively cut withdrawals during market downturns and modestly increase them when portfolios recover, using clear guardrails for decisions.
- Following this approach will require regular portfolio checks, discipline or advisor guidance, and could change how retirees budget and plan for health, housing, and long-term care costs.