AI Summary
5 min readWe Changed The 4% Rule!?
The 4% withdrawal rule—the idea that you can safely take 4% of your portfolio in your first year of retirement and adjust for inflation each year after—has been a cornerstone of retirement planning for decades. But the Money Guy team argues that using a single number for everyone is dangerously oversimplified. The rule originated from financial advisor Bill Bengen and was popularized by the Trinity Study, which assumed a 30-year retirement horizon. Bengen himself later updated his recommendation to 4.7% for properly diversified portfolios. The problem is that most people treat this as a one-size-fits-all answer, ignoring that retirement length, age, and spending patterns vary dramatically.
A Dynamic Withdrawal Rate by Age
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What you'll learn
- 1 (01:00) **The 4% Rule Is Changing** - The hosts announce they are updating the classic 4% withdrawal rule, arguing it is too simplistic for modern retirement planning.
- 2 (03:38) **Why a Single Withdrawal Rate Fails** - The hosts explain that the 4% rule assumes a 30-year retirement, which doesn't fit early retirees (40s/50s) or those who work past 65.
- 3 (04:50) **The Money Guy Dynamic Withdrawal Rate** - The hosts introduce their new, age-based withdrawal rate framework.
- 4 (06:01) **Why Conservative Assumptions Matter for Early Retirement** - The hosts explain that being conservative is intentional because leaving a high-paying job is a difficult threshold to reverse.
- 5 (06:32) **Key Takeaway: The 4% Rule Is a Starting Point, Not a Lock** - The hosts emphasize that in practice, withdrawal rates are dynamic, not a fixed lifetime number.
- 6 (08:44) **Key Takeaway: Stress Test Your Plan Within 5-7 Years of Retirement** - The hosts advise moving beyond the 4% rule for personalized stress testing when retirement is near.
- 7 (09:16) **Tool: Wealth Multiplier for Long-Term Planning** - The hosts recommend using the Wealth Multiplier tool on their website for those still far from retirement.
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Show Notes
Retirement planning isn't as simple as following the classic 4% rule anymore. In this video, Brian and Bo explain why the traditional retirement withdrawal strategy deserves an update, how William Bengen's latest research changes the conversation, and why your retirement age should determine your safe withdrawal rate. Whether you're planning for early retirement, traditional retirement, or retiring later in life, you'll learn how withdrawal rates, portfolio longevity, inflation, and retirement income all work together to build a sustainable financial plan. Plus, see our updated retirement withdrawal framework and discover tools that can help you estimate your retirement goals more confidently.
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