The renowned financial planner William Bengen has updated his significant retirement withdrawal strategy, increasing the rate to 4.7%. This adjustment offers retirees a more generous approach to managing their finances in retirement.
Bengen is credited with developing the widely recognized “4% rule”, which was first published in the Journal of Financial Planning in 1994. His foundational research demonstrated that retirees could rely on their retirement savings to last at least 30 years by withdrawing 4% of their initial portfolio annually, with subsequent increases to match inflation. This method gained popularity as it provided a straightforward, research-based solution for retirees to determine a sustainable spending level without exhausting their savings. Even after three decades, this guideline remains a cornerstone for many retirees striving to maintain their financial stability.
In his recent publication, A Richer Retirement: Supercharging the 4% Rule to Spend More and Enjoy More, Bengen asserts that the safe withdrawal rate is actually closer to 4.7%. This means that a retiree managing a $1 million portfolio could withdraw ,000 annually instead of $40,000, adjusting this amount yearly for inflation to preserve purchasing power. This revised percentage is based on a comprehensive review of investment returns from numerous retirees dating back to 1926.
“My research has become more sophisticated,” Bengen shared with Yahoo Finance, explaining that he expanded the range of assets analyzed and developed a more diversified portfolio strategy. Previously, his studies focused solely on portfolios composed of U.S. bonds and large U.S. stocks, but he has now included international stocks and equities from small and mid-size companies. “Each of these asset classes has its own investment cycle and contributes to the portfolio’s diversification, allowing for a higher withdrawal rate,” he emphasized.
Despite this updated guidance, Bengen warns that a single withdrawal rate is not universally applicable, and no rule can guarantee financial longevity. Factors such as market volatility, inflation, and healthcare costs significantly influence withdrawal strategies. “In my view, inflation is the biggest threat to retirees,” he told Yahoo Finance. “During the 1970s, inflation rates soared to 8% or 9% annually for a decade, which severely impacted many retirement portfolios.”
During that tumultuous era, Bengen notes, retirees were forced to withdraw money from their investments at a significantly faster rate just to keep pace with escalating prices. This situation led to many retirees depleting their savings earlier than anticipated, while others had to drastically reduce their withdrawals to safeguard their finances. Such high-inflation scenarios have influenced his current recommendation of a 4.7% withdrawal rate, which he describes as a prudent starting point rather than an inflexible rule.
“The 4.7% rule represents a conservative estimate,” Bengen explained, indicating that many retirees might be able to withdraw at a higher rate depending on economic conditions. For contemporary retirees, he suggested, “I’d likely advise something in the range of 5.25% to 5.5%.”
This conservative figure arises from a particularly challenging period in U.S. stock market history characterized by consecutive bear markets and elevated inflation rates that adversely affected investment portfolios. Today’s retirees continue to encounter challenges, such as high stock market valuations—which can negatively impact withdrawal rates—but they are also seeing the benefits of more stable inflation, potentially allowing for increased withdrawal rates.
Is the 4% Rule Still Relevant for Today’s Retirees?
While Bengen’s recent update provides retirees with a slightly elevated starting point, some financial experts argue that the 4% rule may be an outdated concept. Critics point out that this rule does not consider alternative income sources, such as Social Security, and does not allow for the flexibility needed to adjust spending as personal circumstances evolve over time.
Other financial analysts appreciate the idea of a fixed withdrawal rate but disagree on the specific percentage that would remain safe for the upcoming decades. Although Bengen’s figure is derived from nearly a century of historical market performance, the latest State of Retirement Income report from Morningstar adopts a forward-looking perspective. The authors of this report suggest a more cautious 3.7% withdrawal rate as the optimal choice for a 30-year retirement, taking into account projections for future market returns, inflation, and interest rates. Nevertheless, the report acknowledges that retirees could safely start with a withdrawal rate above 4% in various scenarios, particularly if they hold Treasury Inflation-Protected Securities (TIPS) or other inflation-protected bonds. Those who expect to follow traditional spending patterns, which typically show that individuals tend to spend less as they age, may also begin at a higher rate without risking depletion of their funds, according to Morningstar.
Bengen’s research serves as a valuable benchmark, especially for individuals who prefer a straightforward starting point for retirement planning. The essential takeaway—endorsed by both Bengen and his critics—is that retirees should customize their withdrawal strategies based on their unique financial situations rather than adhering to a rigid, one-size-fits-all percentage.
As Bengen advised in an interview with Yahoo Finance, “Each individual has a unique situation. Tailor your withdrawals accordingly.”
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