Rule Of 25 Vs 4 Percent Rule
Another retirement planning rule that can make it easy to decide how much you need to retire is the Rule of 25.
The 4% rule recommends the maximum amount you should spend in relation to your current retirement savings balance.
With the Rule of 25, you multiply your estimated annual expenses to determine how big your nest egg should be.
Annual expenses x 25 = Total retirement portfolio value necessary
So, if your annual spending is $40,000, you need $1 million.
$40,000 x 25 = $1,000,000
Either financial rule can help you create your savings goals and indicate when you can afford retirement.
Does The 4% Rule Hold Up In Todays Economy
As with everything else under the sun, not all economists agree with the 4% rule. One objection some cite is the lower bond yield today than in the 1990s when Bengen performed his analysis.
Supporters of the 4% rule reply that retirees can always leave more of their portfolio in equities to generate better average returns. However, that leaves them more vulnerable to sequence of returns risk , or the risk of a market downturn within the first few years of retiring, which can cripple your nest egg.
Other economists forecast lower stock market performance over the next decade. They argue that just because a 4% annual withdrawal rate was safe for the past hundred years, that doesnt mean it will be safe in the future.
Ultimately, the debate boils down to a single question: Are you willing to base your retirement plans on historical investment returns? If you arent, then retirement planning slips into the realm of speculation and forecasting. Youve read the disclaimer a hundred times: Past performance is not necessarily indicative of future results. Just because stock market returns have averaged roughly 10% over time doesnt mean they will continue to do so.
But if history cant inform us, then what can?
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Bankrate follows a strict editorial policy, so you can trust that were putting your interests first. All of our content is authored by highly qualified professionals and edited by subject matter experts, who ensure everything we publish is objective, accurate and trustworthy.
Our reporters and editors focus on the points consumers care about most how to save for retirement, understanding the types of accounts, how to choose investments and more so you can feel confident when planning for your future.
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A 50/50 Portfolio May Not Cut It
A key assumption of the 4% rule is the portfolio is a conservative mix of 50% equities and 50% bonds. Back in 1994 when the rule was born, bond yields² were close to 8%. After ending 2020 below 1%, the US 10-year treasury is now around 1.6%.
Markets change over time. People live longer. Interest rates arent stagnant. Correlations among asset classes shift. These are just a few of the factors that make professional asset managers call the traditional 60/40 retirement portfolio into question. If a 60/40 mix doesnt cut it, the 50/50 portfolio would fare even worse.
Updates On Historical Data

Critics of the 4% rule have a point Bengens original research is over 25 years old. Has anything changed in the intervening years?
Financial planner Michael Kitces has researched the 4% rule extensively. Analyzing data going back to the 1800s, Kitces demonstrates that a 4% withdrawal rate with Bengens 60% stocks and 40% bonds allocation would never have resulted in a nest egg running out of money in less than 30 years not even in the worst 30-year periods in history.
He doesnt stop there. In most historical scenarios, retirees would actually have more money in their accounts after 30 years, not less. Even with a 4.5% withdrawal rate, Kitces shows that in 96% of the 30-year periods since 1926, retirees would have larger nest eggs after 30 years than when they first retired.
Therein lies one of the problems with retirement planning. Retirees have to plan for the worst-case scenario, even though it will mean spending far less than they may need to live.
Or do they?
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How You Invest Can Be Important Too
The mix of investments you choose is another key to how much you can withdraw without running out of money. Portfolios with more stocks have historically provided more growth over the long termbut have also experienced bigger price swings.
Another important factor in determining the right asset mix for you: the degree of confidence you need that your money will last your lifetime. As the chart below illustrates, in about half of the hypothetical scenarios we tested, a growth portfolio would have allowed you to withdraw more than 7% each year over 25 years of retirementover 25% more than a conservative portfolio with a sustainable withdrawal rate of 5.7%.3
If you want a much higher degree of confidence, the analysis suggests that increasing equity exposure doesnt raise the sustainable withdrawal rate, and in fact becomes counterproductive. At a 90% confidence level, the sustainable withdrawal rate for the conservative portfolio is 4.8%, versus 4.5% for the growth portfolio. For a 99% confidence, the analysis suggests you could withdraw 4.1% from the conservative portfolio, versus only 3% from the growth portfolio.3
If you feel you need high confidence that your savings will last throughout retirementand in particular if you find volatility unnervinghistory suggests that a high allocation to stocks may be less attractive to you.
What Are The Steps To Retire Early
1. Save
Most Fire savers put aside 25% to 50% of their income every month.
In order to save this level of money, you might need to identify essential expenditure and make some lifestyle changes. You might want to try out these money-saving tricks.
You also need to decide where to put your savings. Most Fire savers will invest using a tax efficient product like a stocks and shares ISA.
2. Invest
If you left your money in a poorly performing savings account, it will be eroded by inflation. You need to invest it instead to give you savings the best chance of growing.
Most Fire savers invest in low-cost tracker funds which mimic the performance of a stock market. You should use a stocks and shares ISA to shelter your investment returns from the taxman.
Fidelity has been given five stars for its ISA offer. Find out why here.
3. Earn more
Its not all about saving. The next step would be to try and boost your income. This could include:
- Taking a part-time job or extra consultancy work
- Asking for a pay rise
- Changing jobs with a better salary
- Retraining for a higher paid job
4. Spend wisely
Think carefully before buying anything. Many Fire savers avoid luxury items and save money in anyway they can.
That might mean stopping that takeaway coffee habit and avoiding Pret sandwiches.
You could use the money you save to pay off your mortgage quicker or invest more money.
Why not give these money-saving tricks a whirl.
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A Smarter Way To Use The 4% Rule
Does this mean you should abandon using the 4% rule? No, as long as you understand its just a litmus test, a gauge, a starting point. And you should further figure the rule is likely not as conservative a measure as it used to be. We may not see the rosy conditions that drove the U.S. stock market in the second half of the 20th century.
A way to utilize the rule is to add up your expected savings at retirement and see if 4% of that number will generate your target retirement income. If not, its time to go back to the drawing board and figure out how to boost your retirement savings.
If 4% does give you an adequate retirement income, roll up your sleeves and start looking at your particular plan. Ask yourself:
- Will you be like many retirees, and spend bigger during your go-go years in early retirement and less during your no-go years later on?
- Do you have the stomach for a portfolio that emphasizes stocks over fixed income?
- And importantly, are there ways you can turn some of your retirement capital into guaranteed retirement income taking the pressure off the annual drawdown from your portfolio? Annuities, bond ladders, and even government inflation bonds are all possibilities.
As you can see, the 4% rule can get things started, but its not the end solution.
Understanding The Four Percent Rule
The Four Percent Rule helps financial planners and retirees set a portfolio’s withdrawal rate. Life expectancy plays an important role in determining if this rate will be sustainable, as retirees who live longer need their portfolios to last longer, and medical costs and other expenses can increase as retirees age.
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How Much Money Do I Need To Retire
In days gone past, the three-legged stool for retirement meant counting on pensions, Social Security and savings. Those who depend on that stool nowadays will fall hard, because the pension leg is either gone or going away. The Federal Reserve reports that only 22% have pensions to rely on in retirement. Thats less than one-fourth of the population.
The maximum Social Security benefit in 2020 at full retirement age is $3,011. But, the average Social Security benefit in January of 2020 was just $1,503. Thats $18,036 per year. Its not hard to see that wont go far.
Weve devised and included a retirement calculator that gives you estimates of what you need, based on your honest assessments of where you are. Use it give yourself a realistic plan.
% Rule Of Thumb Vs $1000
The $1,000-a-month rule is another strategy for sustainable retirement withdrawals. The rule assumes you start with $240,000 retirement savings and withdraw $12,000 each year for 20 years, or $1,000 per month.
For this rule, you would either need a low cost of living or additional income to supplement your $1,000 monthly withdrawals. It doesnt compensate for inflation or annual cost-of-living increases, nor does it consider retirements that last more than 30 years.
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Is There An Early Retirement Age For Social Security
Social Security Early Retirement Age. The Social Security Administration defines early retirement as age 62. If you begin taking Social Security benefits at age 62, you will receive a reduced benefit. Many people do not realize that even if you choose an early retirement age, you do not have to begin Social Security benefits early.
How The 4% Rule Was Created

In 1994, using historical data on stock and bond returns over a 50-year period 1926 to 1976 financial advisor William Bengen challenged the previous go-to thinking that withdrawing 5 percent yearly in retirement was a safe bet.
Based on a deep dive into the half century of market data, Bergen concluded that essentially any conceivable economic scenario would allow for a 4 percent withdrawal during the year they retire and then theyd adjust for inflation each subsequent year for 30 years.
Bengen used a 60/40 portfolio model and was conducted during a period of higher bond returns compared with current rates.
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What Is The Four Percent Rule
The Four Percent Rule is a rule of thumb used to determine how much a retiree should withdraw from a retirement account each year. This rule seeks to provide a steady income stream to the retiree while also maintaining an account balance that keeps income flowing through retirement. Experts are divided on whether the 4% withdrawal rate is safe, as the withdrawals will consist primarily of interest and dividends.
How To Calculate The Safe Withdrawal Rate
The safe withdrawal rate helps you determine a minimum amount to withdraw in retirement to cover your basic need expenses, such as rent, electricity, and food. As a rule of thumb, many retirees use 4% as their safe withdrawal ratecalled the 4% rule.
The 4% rule states that you withdraw no more than 4% of your starting balance each year in retirement. However, the 4% rule doesn’t guarantee you won’t run out of money, but it does help your portfolio withstand market downturns, by limiting how much is withdrawn. In this way, you have a much better chance of not running out of money in retirement.
Although there are a few ways to calculate your safest withdrawal rate, the formula below is a good start:
- Safe withdrawal rate= annual withdrawal amount ÷ total amount saved
Lets say as an example, you have $800,000 saved and you believe youll need to withdraw $35,000 per year in retirement. The safe withdrawal rate would be:
- $35,000 ÷ $800,000 = 0.043 or 4.3%
If you believe you’ll need a higher or lower amount of income in retirement, here are a few examples:
- $25,000 ÷ $800,000 = 0.031 or 3.0%
- $45,000 ÷ $800,000 = 0.056 or 5.6%
So, if you only needed $25,000 per year in withdrawals, you could safely withdraw it since it would only be 3% of your balance each year.
To calculate how much in retirement funds you’d need to satisfy the 4% rule and be able to safely withdraw $45,000 per year, we would rearrange the formula as follows:
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What Is The Safe Withdrawal Rate Method
The safe withdrawal rate method is one way that retirees can determine how much money they can withdraw from their accounts each year without running out of money before reaching the end of their lives.
The safe withdrawal rate method is a conservative approach that tries to balance having enough money to live comfortably with not depleting retirement savings prematurely. It is based largely on the portfolios value at the beginning of retirement.
If The 4 Percent Rule Is Outdated Whats The New Safe Withdrawal Rate For Early Retirement
As Ive written before, most people use overly optimistic growth rates when projecting out their investment balances.
One of the reasons for this is recency bias, whereby we are biased towards results which have occurred most recently. Recent stock returns have been substantially higher than historical averages during the past 30-40 years. As such, recently bias causes us to assume these returns will continue at such high rates.
That assumption may not be accurate. Many experts, including those at Vanguard, are predicting that well have a period of lower returns for both stocks and equities over the next 10 years.
As mentioned above, Morningstar recently came out with their estimate of a safe withdrawal rate for the future of 3.3%. They identified the following distinguishing features of the current economic environment, as compared to historical values, as a reasons we need to reassess the 4 percent rule: lower bond yields stock valuations at all time highs and low inflation. The first two features suggest lower withdrawal rates, while the third would support higher rates.
Similar to the Trinity study, Morningstar considered these factors, and applied them to several different portfolio allocations and timeframes to determine what a safe withdrawal rate might be for future retirees.
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Should You Use The 4% Rule
So do these personal and in some cases, wholly unknowable details of our financial futures render the 4% Rule useless? Not at all. It just needs to be adapted for personal use.
And thats really the point, both of the 4% Rule and any other financial rules of thumb: Its less of a hard-and-fast mandate on what to do and more of a well-informed starting place, from which your own personal retirement savings and spending plan can be thoughtfully crafted. It doesnt solve for everything you need to consider about retirement finances, but many people consider it a very useful frame of reference to jump off from.
That said, the applicability of the 4% Rule also depends on where your retirement assets are invested. If youre primarily saving for retirement somewhere other than a portfolio of mostly stocks and bonds, then the 4% Rule is less likely to apply to your holdings. And even then, depending on the allocation between stocks and bonds, 4 percent might not be the right figure for your portfolio. Or it might be fitting today, but not 20 or 30 years from now. In any case, its between you and your financial planner to figure out what projected withdrawal rate makes the most sense.
The 4% Rule Trinity Study And Safe Withdrawal Rates Calculator
This 4% rule early retirement calculator is designed to help you learn about safe withdrawal rates for early retirement withdrawals and the 4% rule. Use it with your own numbers to determine how much money you can withdraw in retirement and how long your money will last.
UPDATE: April 2020: Ive updated the market data to include annual data up to and including 2019. I also fixed a small bug which affected real stock market returns so you may see a very slight reduction in average returns and success rates.
Instructions for using the calculator:
This calculator is designed to let you learn as you play with it. Tweaking inputs and assumptions and hovering and clicking on results will help you to really gain a feel for how withdrawal rates and market returns affect your chance of retirement success .
Inputs You Can Adjust:
- Spending and initial balance This will affect your withdrawal rate. The withdrawal rate is really the only thing that is important .
- Asset allocation Raise or lower your risk tolerance by holding more or less stock vs bonds
- Adjust retirement length This affects the number of historical cycles that are used in the simulation, but also increases risk of failure.
- Add tax rates and investment fees these will put a drag market returns and lower success rates
Options for Visualization:
What is the 4% Rule?
One way to test this is through a backtesting simulation which forms the basis for the Trinity Study.
What is the Trinity Study?
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