Why the Classic 4% Rule May Not Fit Your Retirement

For decades, the “4% rule” has been a simple benchmark for retirees: withdraw 4% of your total savings in the first year of retirement, then adjust that amount each year for inflation. For example, with a $1 million portfolio, you’d withdraw $40,000 in year one, and with 3% inflation, $41,200 in year two. The concept, developed by William Bengen, was based on historical returns from a balanced portfolio and aimed to provide a 30-year retirement horizon.

Its appeal lies in simplicity, but today’s financial realities are prompting experts to reconsider whether the rule still fits. The original assumptions included a 50/50 stock-bond portfolio, stable inflation, and no major unexpected expenses.

Why the 4% rule may fall short today

• Market volatility & sequence-of-returns risk: Early losses in retirement can erode your portfolio faster than planned.
• Rising healthcare and long-term care costs: Medical expenses often grow faster than general inflation, potentially disrupting withdrawals.
• Longer lifespans: Many retirees today need savings to last beyond 30 years, exceeding the rule’s original horizon.
• Changing income streams: With Social Security, pensions, and other sources, a single withdrawal rate may not align with actual spending, which can fluctuate year-to-year.

What this means for your retirement planning
The 4% rule can still serve as a useful starting point—but it shouldn’t be a rigid limit. Many experts now recommend more conservative rates, such as 3.5%–4%, or a flexible withdrawal strategy that adapts to market conditions and personal circumstances.

Your withdrawal plan should reflect your unique situation: age at retirement, FERS pension and other income sources, risk tolerance, expected expenses (including healthcare), and portfolio composition. A Federal Retirement Consultant (FRC®) can tailor the 4% guideline to your individual needs, help protect your savings, and provide a clearer path to a sustainable retirement.