The 4% Rule: Is It Still Safe for Your Retirement?

The 4% Rule: Is It Still Safe for Your Retirement?

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Written by Dominic Mitchell

18 October 2025

For as long as I can remember, the 4% rule has shaped how people plan for retirement. Lately, though, with the financial world shifting under our feet, lots of folks are wondering: does it still hold up?

So, here’s the gist. The 4% rule says you can take out 4% of your retirement savings the first year you retire. After that, just bump it up each year for inflation. The hope? Your money lasts a solid three decades. Now, here’s a twist: the guy who came up with the 4% rule recently bumped his recommendation up to 4.7%. That’s got everyone talking—some say the old rule is too stingy, others worry even the new number might be risky.

Let’s dig into what the 4% rule really means, how it stacks up today, and what else you might want to try. I’ll break it down with stories, numbers, and a few personal takes. After all, feeling confident about your financial future matters a lot more than memorizing a magic number.

Key Takeaways

  • The 4% rule means you withdraw 4% of your retirement savings in year one, then adjust for inflation each year.
  • Its creator now suggests 4.7% might be a safer bet, considering today’s wild markets.
  • You might get better results with flexible withdrawal strategies instead of sticking to one fixed percentage.

What Is the 4% Rule and How Does It Work?

The 4% rule gives you a starting point for how much you can safely pull from your retirement account each year. You just take 4% out in your first year. After that, you increase that amount to keep up with inflation.

Origins and the Trinity Study

Researchers in the 1990s, through the Trinity Study, wanted to figure out how long retirement money could last at different withdrawal rates.

They tested all sorts of scenarios using stock and bond data from 1926 to 1995. Their goal? Find a withdrawal rate that would make your nest egg last 30 years. Turns out, starting with a 4% withdrawal rate worked in 95% of cases. That means, in almost all scenarios, the money lasted the full three decades.

The study used a mix of stocks and bonds and assumed retirees would take the same inflation-adjusted amount every year. This research became the go-to guide for retirement planning. Financial advisors everywhere started recommending the 4% rule.

Calculating Your Safe Withdrawal Rate

Honestly, the math is refreshingly simple. Multiply your total retirement savings by 0.04 to get your first-year withdrawal.

Here’s what that looks like:

  • $500,000 saved? You take out $20,000 in year one.
  • $1,000,000? That’s $40,000 for you.
  • $1,250,000? You’re looking at $50,000.

Want to know how much you need to save? Divide your desired yearly income by 0.04. So, if you want $60,000 a year, you’ll need $1,500,000 stashed away ($60,000 ÷ 0.04).

Some experts say 3% is safer these days. At that rate, you’d need $2,000,000 to pull $60,000 a year.

Adjusting for Inflation and Market Performance

After year one, you increase your withdrawal for inflation. You don’t recalculate based on your current balance. Say you took out $40,000 in your first year and inflation was 3%. Next year, you’d withdraw $41,200.

This keeps your spending power steady. Otherwise, inflation would eat away at what your money can buy.

The 4% rule expects your investments to grow faster than you withdraw. Most retirement portfolios average 6-8% a year, which should cover your withdrawals and inflation. But, if markets tank early in your retirement, sticking to the same withdrawal can hurt your long-term finances.

Some retirees tweak their withdrawals. They cut back in bad years and spend a bit more when markets are strong.

The 4% Rule in Today’s Market Conditions

Let’s face it: the world looks different now than it did in 1994. High inflation, wild market swings, and super low bond yields have changed the retirement game.

Inflation and Rising Costs

Inflation is a real pain for anyone following the 4% rule. In 2021 and 2022, prices shot up—sometimes over 9%—and that’s way above what most retirement plans expect. The rule says you should increase your withdrawals to match inflation. But when inflation spikes, you end up selling more investments than you planned.

Here’s an example: Retire with $1 million and take out $40,000. If inflation is 2-3%, you’d need about $41,000 next year. But with 8% inflation, you’d need $43,200.

Inflation messes with the 4% rule by:

  • Forcing you to take out more money just to keep up.
  • Eating into your portfolio growth.
  • Raising the odds your money runs out early.

I’ve seen retirees worry as essentials like healthcare, housing, and groceries climb faster than their planned increases.

Stock Market Volatility and Valuations

Stock markets today feel a lot shakier than the historical periods used in the original 4% rule research. Volatility is up, and that means more uncertainty.

The Shiller CAPE ratio—a measure of how expensive stocks are—sits way above its long-term average. That could mean future returns won’t be as generous as in the past.

When markets are pricey, returns often disappoint for years after. If you retire in one of those periods, your portfolio is under more pressure.

Bear markets early in retirement can be brutal:

  • Sequence of returns risk gets worse.
  • Pulling out money during downturns locks in losses.
  • It’s tough for your portfolio to bounce back.

We saw this in the 2000 tech crash and the 2008 financial crisis. Retiring at the wrong time can really mess with the 4% rule.

Interest Rates and Bond Yields

Bonds used to be the safe, steady part of a retirement portfolio. Not so much now. Yields have stayed near record lows, even after the Fed raised rates. Ten-year Treasury bonds yield around 4-5%, down from much higher levels in past decades.

Low yields mean two things. First, your bonds don’t pay as much income. Second, when rates rise, the value of your bonds drops.

Here’s how low yields complicate things:

  • Less income from your fixed-income investments.
  • You end up relying more on selling stocks.
  • Diversification doesn’t protect you like it used to.

If you’re retired or close to it, keep an eye on your bond allocation. The old 60/40 split might not cut it anymore.

Is the 4% Rule Still Safe for Your Retirement?

The 4% rule is facing some tough questions in 2025. Experts are nudging the safe withdrawal rate up to 4.7%, but longer lifespans and market timing risks still loom large for anyone chasing financial independence.

Recent Expert Research and Updates

Bill Bengen, the original 4% rule guy, now says 4.7% might be safe—if you diversify and rebalance your portfolio.

That’s a big deal. With $1 million saved, you could withdraw $47,000 in your first year instead of $40,000.

So, what’s changed?

  • Smarter diversification.
  • Regular rebalancing.
  • Tweaking your asset allocation as you age.

But Bengen makes it clear: this is guidance, not gospel. Your personal situation and the market matter more than any single number.

A lot of advisors now push for flexible withdrawal strategies. I’d treat 4.7% as a starting point, not a sure thing.

Impact of Longer Lifespans

People are living longer than ever. The original 4% rule was built around a 30-year retirement, but now, 35 or even 40 years isn’t uncommon.

Longer retirements mean your money has to last through more market dips and inflation spikes.

Think about it:

  • 30 years? 4.7% could work.
  • 35 years? Maybe 4% or less.
  • 40 years? You might want to stick to 3.5%.

If you retire at 55, your savings need to stretch even further. Early retirees should probably aim for lower withdrawal rates.

I always tell people to plan for at least 35 years of expenses. It’s just safer.

Sequence of Return Risk

Sequence of return risk is a sneaky one. If markets crash right after you retire, your portfolio can take a hit it never recovers from.

This makes the 4% rule risky during downturns. Pulling out 4% after a big drop means you’re selling low, which hurts your future returns.

Here’s how it can play out:

  • Year 1: Market drops 20%, you still take 4%.
  • Year 2: Market drops again, you take out even more (with inflation).
  • You might never make up those losses.

Smart retirees adjust their withdrawals when markets tank. I suggest cutting back spending by 10-20% in tough years.

Keeping 2-3 years’ worth of expenses in cash or short-term bonds helps you avoid selling stocks at a loss.

Alternatives and Strategies Beyond the 4% Rule

Retirement planning isn’t one-size-fits-all anymore. There are smarter, more flexible ways to make your money last—and maybe even sleep better at night.

Flexible Withdrawal Methods

I’m a big fan of withdrawal strategies that flex with the market and your needs. The spending guardrails approach lets you start higher, maybe 5%, but you set upper and lower limits (like 4% and 6%) based on how your portfolio’s doing.

The Yale Spending Rule mixes things up:

  • Spend 70% of what you spent last year (adjusted for inflation).
  • Add 30% based on your average portfolio value over three years.

This keeps your spending from bouncing all over the place when markets get crazy.

The Variable Percentage Withdrawal strategy adjusts your rate every year. It considers your age, how you’re invested, and your current balance. That makes running out of money almost impossible.

Some folks use the RMD method even before age 73. You calculate withdrawals like Required Minimum Distributions, which means you spend more as you age and protect your savings during rough markets.

Building a Diversified Investment Portfolio

Your portfolio should have different pieces working together. I like the “bucket” approach, dividing your money by time horizon.

Short-term bucket (1-3 years): Keep cash and short-term bonds here. This pays your bills when markets are down.

Medium-term bucket (4-10 years): Mix in conservative stuff like Treasury bonds and dividend stocks. It grows, but with less risk.

Long-term bucket (10+ years): Growth stocks and funds live here. They help you beat inflation over the long haul.

A dividend-focused strategy can work, too. Invest in stocks and funds that pay regular dividends. Some research says you can safely spend up to 130% of your dividend income and still keep your principal safe.

Bond ladders are another tool. Buy bonds that mature in different years. When one matures, use the cash for expenses or reinvest it.

Retirement isn’t about sticking to one rule. It’s about finding what works for you, staying flexible, and keeping an eye on the world as it changes.

Personalized Planning and Professional Guidance

Let’s be honest—figuring out retirement on your own gets overwhelming fast. I’ve found that working with a financial advisor makes the whole process feel less intimidating. They don’t just hand you a generic plan; they actually tailor it to your life, quirks and all.

Everyone’s got their own mix of needs, health worries, and family dreams. Your advisor digs into your real expenses and income sources, not just what some online calculator spits out.

They’ll consider your Social Security, any pensions, and all those other retirement savings you might have stashed away. It’s not just about your main portfolio.

Where Professional Guidance Really Shines:

  • Tax-smart withdrawal plans (because who wants to pay more taxes than necessary?)
  • Planning for those ever-rising healthcare costs
  • Coordinating your estate plan (it’s not just for the ultra-wealthy)
  • Deciding when to claim Social Security for the best outcome

These days, advisors use some pretty sophisticated software. I’ve watched them run simulations against thousands of market scenarios—it’s way more revealing than just relying on that old 4% rule.

Sequence of returns risk is a sneaky one. I’ve seen advisors recommend dialing back stock exposure during those first few years of retirement, or even using annuities to lock in some guaranteed income.

You’ll want to review your plan regularly. Life changes, markets shift, and your withdrawal strategy should keep up. Don’t just set it and forget it.

Frequently Asked Questions

The 4% rule isn’t as simple as it sounds. Market swings, inflation, and how long you’ll actually need your money all play a part. If you’re like most modern retirees, you’ll want to look into flexible withdrawal strategies and maybe even focus more on income than just growth.

What Factors Affect the Sustainability of the 4% Withdrawal Rule Over the Long Term?

Honestly, market performance is king here. If your portfolio takes a hit early in retirement, bouncing back can be tough—sometimes impossible.
I’ve seen firsthand how a bad market at the wrong time can derail even the best-laid plans. It’s not just about how much you have, but when you need it.
Asset allocation matters a lot. Mixing stocks and bonds usually works better than going all-in on one thing.
I always rebalance my portfolio every six to twelve months. It keeps things from drifting too far off course.
The length of your retirement changes everything. Planning for 30 years is one thing, but 40? That’s a whole different ballgame.
Your spending flexibility is a secret weapon. If you can cut back during rough patches, your odds of success go way up.

How Does Inflation Influence the Effectiveness of the 4% Rule in Retirement Planning?

Inflation quietly chips away at your savings. The 4% rule assumes you’ll bump up withdrawals each year to keep up, but reality can get messy.
When inflation spikes, your spending power takes a hit. I’ve watched costs double faster than anyone expected during high-inflation years.
Healthcare, in particular, seems to outpace regular inflation. That extra pressure can really squeeze your budget.
Stable prices make the 4% rule work better. If inflation stays low, your money stretches further.
Some planners now suggest skipping those annual increases during rough market years. It’s a move that can help your portfolio recover.

Can You Rely on the 4% Rule If You Plan to Retire Early and How Does Duration of Retirement Impact It?

If you’re dreaming about early retirement, the 4% rule gets riskier. Stretching your money over 40 years is way harder than 30.
Personally, I’d lean toward a 3% or 3.5% withdrawal rate if you’re leaving work before 60. Those extra years make a big difference.
Early retirees face some unique headaches. No Social Security until 62, no Medicare until 65—it all puts more strain on your nest egg.
A market crash early on can really mess things up. You’ve got more years to recover, but that doesn’t always help.
Consider picking up part-time work. Even a little extra income can make your savings last a lot longer.

How Should You Adjust the 4% Rule to Account for Social Security Benefits in Your Retirement Strategy?

Social Security is a game-changer. The basic 4% rule doesn’t even factor it in, but those monthly checks can let you take a bit more from your portfolio.
I like to subtract my expected Social Security from my total needs, then apply the 4% rule to what’s left. It just feels more realistic.
Social Security adjusts for inflation automatically. That built-in safety net means you might take more risk with your investments if you’re comfortable.
Delaying Social Security until 70? The bump in benefits is real. It can support higher withdrawals from your savings.
But don’t get too comfortable—future changes could happen. It’s smart to plan a little conservatively, just in case.

What Are the Alternatives to the 4% Rule for Ensuring Financial Security in Retirement?

Let’s talk alternatives. Dynamic withdrawal strategies let you spend more when markets are good, and pull back when they’re not.
I’m a fan of the bucket strategy. You keep a few years’ expenses in cash or bonds and let the rest ride in stocks.
Dividend investing has its fans. If your dividends cover your living costs, you might avoid selling shares altogether.
Bond ladders are another classic. You buy bonds that mature at different times, so you always have cash coming in.
Floor-and-ceiling strategies give you a spending range. You’ll never drop below a certain amount, but you won’t overspend either.
Some advisors use market valuations to tweak withdrawal rates. When stocks look expensive, they suggest pulling back a bit.

How Do You Accurately Calculate Your Retirement Needs Using the 4% Withdrawal Strategy?

Let’s start simple: track your actual expenses for at least a year. Seriously, don’t guess—write down what you spend and see where your money really goes.
Once you’ve got that number, tack on another 10-20% for healthcare and unexpected costs. Trust me, retirement always throws a few curveballs.
Here’s the classic move: multiply your annual expenses by 25. That’s your target retirement savings using the 4% withdrawal rule. It’s a quick calculation, but it’s surprisingly effective.
Got Social Security or a pension coming your way? Subtract those from your yearly expenses. You’ll only need to save enough to cover what’s left.
Play around with online calculators—they’re super handy. Change up your assumptions about returns, inflation, or even your spending, and see how your plan holds up.
If your situation feels complicated or you’re just not sure, consider chatting with a financial advisor. They can walk you through different withdrawal strategies and help you prepare for whatever the market decides to do.

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I went from having $247 in my bank account to building financial confidence through small, smart steps. Now I share real strategies that work for real people on Financial Fortune. Whether you're starting with $1 or $1,000, I believe everyone can build wealth and take control of their money.
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