For over thirty years, the “4% rule” has been a crucial guideline for retirement planning. The concept is simple: withdraw 4% of your total retirement assets in the first year of retirement, then adjust the withdrawal amount annually based on inflation. In theory, this approach should sustain your funds for approximately 30 years of retirement. It serves as a practical starting point and an excellent rule of thumb.
However, the proponents of this rule have been increasingly emphasizing that it is far more flexible than the rigid version many savers adhere to and often allows for higher withdrawal rates. The amount you withdraw annually in retirement depends on your income, investment situation, and life plans.
In 1994, financial planner William Bengen presented this rule after conducting an in-depth analysis of market data from previous decades. He aimed to identify the highest withdrawal rate that could withstand even the most challenging market environments of the 20th century, including the economic recessions and volatility of the 1970s. He ultimately concluded around 4%, which has since become ingrained in retirement financial “lore.”
However, the public has overlooked a crucial detail: what exactly does “surviving the worst-case scenario” entail? Bengen’s scenario isn’t typical retirement circumstances but extreme cases from history. For the vast majority of retirees, a 4% withdrawal rate not only won’t deplete their retirement portfolios but may significantly increase them.
The strength of the “4% rule” lies in its simplicity and conservatism. It encourages thinking about retirement planning in terms of “sustainable withdrawals” rather than taking a lump sum, with an inherent layer of protection. However, its weakness lies in excessive conservatism potentially leading to decades of underspending, leaving behind wealth that wasn’t fully enjoyed.
Bankrate interviewed Bengen, who stated, “Whether it’s the 4% rule or the latest amended version, the 4.7% rule, they are set for the worst-case scenario. It is actually designed specifically for the most conservative retirees.”
Bengen advocates that with more sophisticated asset allocation, retirees may have the opportunity to increase their initial withdrawal rates to 4.7% under certain circumstances. Rather than seeing the famous 4% as a strict spending limit, it should be viewed as a conservative benchmark.
Adhering to a single withdrawal rate often overlooks actual fluctuations in reality. The market experiences ups and downs, and inflation erodes every dollar you withdraw. Thus, Bengen calls inflation the “greatest enemy” for retirees. Encountering high inflation in the early years of retirement could cause lasting damage to investment portfolios.
Ongoing research by Morningstar has indicated more prudent initial values in certain years, further demonstrating that there isn’t a one-size-fits-all “magic number” applicable in all situations.
The real risk hidden behind the “4% rule” is called “Sequence of Returns Risk.” It refers to the order in which asset market returns occur, significantly impacting the final value and longevity of an investment portfolio, particularly when you start withdrawing cash from it.
If you experience a market downturn in the early years of retirement and must continue withdrawing retirement funds, you’d be forced to sell when asset prices are low, potentially leading to an irrecoverable loss in the investment portfolio.
The same average return rate appearing in a different sequence can yield vastly different results. This highlights the importance of when you retire and how you adjust your withdrawals, making it just as critical as the percentage you choose.
To understand why flexibility is crucial, consider two retirees starting with $1 million in assets, both averaging a 7% return. The only difference is the sequence in which these returns occur.
The first retiree encounters a series of strong market performance in the initial years of retirement, while the second faces severe downturns in the first two years. Despite having the same average return over the long term, the second retiree, withdrawing from a shrinking investment portfolio during the worst times, locks in losses that they may never fully recover from.
After several years, the first retiree may have more assets than initially, while the second watches their balance gradually decrease.
This exemplifies the “Sequence of Returns Risk” and advocates against a rigid approach of withdrawing fixed amounts regardless of market conditions. By moderately reducing expenses during the initial years of a market downturn, retirees can significantly raise the probability of prolonging their funds.
Rather than adhering strictly to a single withdrawal rate, establishing flexibility in retirement planning is key. The following methods can lower the likelihood of depleting funds and allow for increased spending when market conditions permit:
– Guardrails Method: Begin with a withdrawal rate around 5% in early retirement, reduce expenditures moderately in years of poor market performance, and increase withdrawals timely during strong years.
– Bucket Approach: Preserve cash equivalent to one to two years of living expenses, ensuring that there’s no need to sell investment assets or stocks in market downturns.
– Dynamic Spending: Link withdrawal rates to portfolio performance, adjusting expenses flexibly with asset fluctuations rather than solely based on inflation.
These methods acknowledge a simple fact: real retirees won’t spend the same inflation-adjusted amount every year for 30 years. They’ll adjust spending flexibly, making a strategy that adapts more suitable and usually more efficient.
Your personal safe withdrawal rate depends on factors overlooked by the “4% rule”:
– Your retirement age and reasonable life expectancy estimates.
– How much of your expenses are covered by fixed income (e.g., social security or pensions).
– Your asset allocation and your ability to cut expenses during challenging years.
– Whether leaving a significant inheritance is important to you.
For instance, a 70-year-old retiree with moderate expenses and a pension can have a significantly higher safe withdrawal rate than 4%. Conversely, a 55-year-old early retiree without other income sources should start with a lower withdrawal rate.
This number varies for each individual, explaining why a one-size-fits-all general rule will eventually fail. The most prudent approach involves annual reviews — assess your asset balance, expenditure, and remaining years, and make adjustments accordingly. This annual review becomes crucial during the highest “Sequence of Returns Risk” in the early stages of retirement.
Withdrawal rates are only half of retirement planning; equally important is which accounts you withdraw from and the order of withdrawals.
In general, withdrawing for tax efficiency often means starting with taxable accounts, followed by traditional tax-deferred accounts like a 401(k), and finally Roth accounts. Planned withdrawals, as opposed to haphazard ones, can significantly benefit your savings assets.
Moreover, Required Minimum Distributions (RMD), the taxation regulations of social security benefits, and Medicare premium thresholds intertwine with your withdrawal amounts and sources in ways that can affect your retirement strategy.
Retirees who coordinate withdrawal strategies with tax planning can often maintain a higher actual spending rate compared to those who overlook taxes — simply because they keep more money in their pockets rather than handing it over to the government.
This is why the rigid “4% rule” should only serve as a starting point, not a spending limit. Conduct your own calculations, considering your fixed income and retirement duration, maintain enough flexibility to navigate years of significant market fluctuations, and review your plan annually. By executing this properly, you can avoid two regrettable scenarios: depleting retirement funds prematurely or realizing at the end of a long life that you missed out on enjoying retirement comfortably.
For a deeper understanding of retirement planning strategies, refer to our Retirement Planning Guide before formally retiring to stress-test your expectations.