The 4% Rule: Does It Still Hold Up in Today’s Economy?
For decades, the 4% rule has been the cornerstone of retirement income planning. Ask almost any financial advisor how much you can safely withdraw from your portfolio each year, and there’s a good chance the 4% rule will come up. But in 2026, with interest rates, market volatility, and life expectancy all looking different than they did in the 1990s, it’s worth asking: is the 4% rule still a reliable guide?
The short answer is:
it’s a useful starting point, but it shouldn’t be followed blindly. Here’s what you need to know.
Where the 4% Rule Came From
The 4% rule traces its origins to a 1994 study by financial planner William Bengen. He analyzed historical market data and concluded that a retiree could withdraw 4% of their portfolio in the first year of retirement, then adjust that amount annually for inflation, and have a high probability of their money lasting 30 years.
The study was based on a portfolio split roughly 50/50 between stocks and bonds, and it accounted for some of the worst market periods in U.S. history — including the Great Depression and the stagflation of the 1970s. For its time, it was groundbreaking.
What’s Changed Since 1994
The financial landscape Bengen studied looks quite different from the one retirees face today. Several factors have caused many experts to revisit whether 4% remains a safe threshold:
Longer retirements. Bengen’s original analysis was built around a 30-year retirement horizon. Today, a 60-year-old retiree may need their money to last 35 years or more. A longer runway increases the risk that even a “safe” withdrawal rate will eventually deplete the portfolio.
Lower bond yields (historically). For much of the 2010s, interest rates were near historic lows, which compressed the returns available from the bond portion of a portfolio. While rates have risen in recent years, the long-term outlook for fixed income remains uncertain.
Market valuation concerns. Some analysts argue that today’s stock market valuations suggest more modest future returns than the historical averages Bengen relied upon — though this is an ongoing debate.
Healthcare costs. Medical expenses in retirement have grown faster than general inflation, putting additional pressure on retirees’ budgets that the original model didn’t fully capture.
What the Research Says Now
Morningstar and other research firms have periodically updated the safe withdrawal rate analysis with modern data. Their findings have generally suggested that retirees who want a high probability of success over a 30+ year period may want to consider a more conservative withdrawal rate — often cited in the range of 3.3% to 3.8%, depending on their asset allocation and time horizon.
That said, some researchers have pushed back, arguing that the 4% rule remains reasonable when you factor in the flexibility most retirees actually have — the ability to spend a little less in a bad market year, delay a large purchase, or pick up part-time income when needed.
The Bigger Problem: Rigidity
Perhaps the greatest weakness of the 4% rule isn’t the number itself — it’s treating it as a fixed, automatic formula. Real retirement spending doesn’t work that way.
Most retirees spend more in their early, active years (travel, hobbies, experiences) and progressively less as they age — with a potential spike late in life for healthcare. A flat, inflation-adjusted withdrawal that ignores this natural spending curve may cause retirees to either overspend early or live too frugally when they could be enjoying their money.
Smarter Alternatives to Consider
Rather than anchoring to a single withdrawal percentage, many advisors today recommend a more dynamic approach:
• Dynamic withdrawal strategies that adjust spending based on portfolio performance year to year
• The “guardrails” approach, which sets upper and lower spending limits tied to portfolio value
• Bucketing strategies that separate short-term cash needs from long-term growth assets
• Incorporating guaranteed income sources — like annuities or delayed Social Security — to reduce dependence on portfolio withdrawals
These approaches give retirees more flexibility to respond to real-world conditions rather than following a fixed formula set decades ago.
The Bottom Line
The 4% rule isn’t broken — but it’s not a complete retirement income strategy either. Think of it as one input in a broader conversation, not the final word.
The most important thing you can do is build a withdrawal plan that reflects your actual spending needs, your specific portfolio, your other income sources, and your willingness to adapt if circumstances change. That kind of personalized planning is where the real value lies — and where a trusted advisor can make a meaningful difference.
Let’s build a withdrawal strategy that works for you.
At Stanley Wealth and Retirement, we help clients move beyond rules of thumb and into retirement income plans built around their real lives. If you’re approaching retirement or already in it, let’s talk about how to make your money last — on your terms.
Schedule your complimentary consultation today.
This material is for educational purposes only and is not individualized investment, tax, or legal advice. Investing involves risk, including possible loss of principal. Dividend payments are not guaranteed and may be reduced or eliminated.
