Creator of the '4% rule' for retirement withdrawals has fresh advice for today's retirees

Key Points

  • 4% Rule Evolution: William P. Bengen, the creator of the 4% withdrawal rule for retirement savings, has updated it to 4.7% and suggests it could go higher with diversified investments, ensuring retirees can spend safely without depleting funds over 30 years.**
  • Diversification Benefits: Bengen emphasizes that a diversified portfolio, including small and international stocks, enhances withdrawal rates, potentially reaching up to 5% or more with additional assets like bitcoin or commodities.**
  • Inflation and Market Risks: High inflation and bear markets, especially early in retirement, can significantly lower safe withdrawal rates, with historical data from the 1970s showing inflation as a major threat to retirees.**
  • Spending Conservatism: Many retirees are overly cautious, spending only dividends and interest, whereas Bengen encourages using a higher withdrawal rate to enjoy the wealth accumulated over a lifetime.**
  • Personalization: Withdrawal rates should be tailored to individual circumstances, with Bengen suggesting rates of 5.25% to 5.5% for current retirees, beyond the conservative worst-case scenario of 4.7%.**

Summary

In his book “A Richer Retirement,” William P. Bengen, the originator of the 4% withdrawal rule, reassures retirees that with proper planning, their savings can last a lifetime. Initially developed in the 1990s, the rule outlined a safe annual withdrawal rate of 4% from retirement accounts over 30 years. Bengen has since refined this to 4.7%, with potential increases to 5% or more through diversified investments including small and international stocks. He highlights the dangers of inflation and bear markets, especially early in retirement, as seen in the 1970s, which shaped the conservative 4.7% rate. Bengen also notes that many retirees are too cautious, limiting spending to dividends and interest, and encourages higher withdrawals to enjoy their savings. His research now incorporates strategies like diversification, annual rebalancing, and a rising equity glide path to boost withdrawal rates without added risk. While the 4.7% rate represents a worst-case scenario, he suggests modern retirees might consider 5.25% to 5.5%, personalized to their unique situations. Bengen’s work, initially for his clients, has become a retirement planning standard, addressing the growing concern of outliving one’s money as life expectancies increase.

yahoo
August 10, 2025
Stocks
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