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The 4% Rule in Retirement: Why It Doesn’t Work for Women

Author: Hazel Secco, CFP®, CDFA®

Estimated reading time: 9 minutes

Table of contents

There’s a rule that decides how much you get to spend for the rest of your life, and almost nobody who repeats it knows where it came from. The 4% rule, retirement planning’s most famous shortcut, says you can withdraw 4% of your portfolio in year one, raise it with inflation every year after, and your money will last. Four percent of a $2 million portfolio is $80,000 a year. Simple. Memorable. And built on assumptions that a woman planning her own retirement is very likely to break.

The rule was published in 1994, modeled on a 30-year retirement. If you’re a woman, especially a healthy, higher-income woman thinking about stepping away at 58, 60, or 62, there’s a real chance you’ll spend closer to 35 or 40 years retired. That one difference quietly changes the math underneath the whole rule.

I’m not here to tell you the 4% rule is dead. I’m here to show you where it came from, what current research says your actual starting number looks like, why the gap hits women specifically, and the three levers that can move your number back up, often above what the old rule promised.

Who the 4% Rule Was Built For

The rule answers one question: what’s the most I can withdraw in year one, raise with inflation annually, and still not run out? When financial planner William Bengen published his research in 1994, his answer was about 4%, assuming a specific stock-and-bond mix, the market history available at the time, and a 30-year retirement. Thirty years. From 65, that takes you to 95.

Now hold that against a woman’s actual timeline. The Social Security Administration’s actuarial life table puts the average 65-year-old woman’s remaining life expectancy at nearly 21 more years. And that’s the average, which means roughly half of women live longer. Healthy, higher-income women (better healthcare, better nutrition, lower-risk work) skew older than that average, not younger. And a growing number of you aren’t retiring at 65 at all. Retire at 58 and plan to age 95, and you’re not funding a 30-year retirement. You’re funding a 37-year one.

That’s the crack in the rule. Every extra year of retirement lowers the withdrawal rate your portfolio can survive, because your money has to outlast more market cycles and more inflation. Stretch the timeline, and 4% stops being conservative.

How Much Can I Withdraw in Retirement? The Safe Withdrawal Rate Today

Let’s replace folklore with current numbers. Every year, Morningstar re-runs Bengen’s question using forward-looking return estimates instead of only past history. Their most recent research puts the safe starting withdrawal rate at roughly 3.9% for a new retiree with a 30-year horizon and a high probability of success. Not 4. And that number moves: it’s been as low as 3.3% a few years ago and as high as 4%, depending on markets and interest rates. One important caveat before you write any of these numbers down: they are research estimates built on probabilities, not guarantees.

Now stretch the horizon to fit a woman’s life. For a retirement of 35 to 40-plus years (exactly what early-retiring, long-living women should plan for), the research points closer to the low-to-mid 3% range as a safe starting point.

A percentage point sounds like nothing, so let me make it concrete. On a $2 million portfolio, 4% is $80,000 in year one. At 3.3%, it’s $66,000. That’s a $14,000-a-year difference in the spending you can count on for life, from the same portfolio. This is not a rounding error. This is whether you’re planning your life around the right number. If that $2 million figure sounds like your situation, I’ve run the full numbers on whether $2 million is enough for a single woman to retire. And because every one of these withdrawals gets raised for inflation over decades, the assumptions you make about rising costs matter as much as the rate itself. I’ve written before about inflation’s hidden impact on retirement savings, and a 37-year horizon gives inflation 37 years to compound against you.

Why Retirement Planning for Women Breaks the Rule’s Assumptions

The lower number is just math. Here’s why it lands harder on women, specifically. Three reasons.

First, longevity, and not the version you’ve heard. It’s not only that women live longer on average. It’s that someone in a couple lives longest, and it’s usually the wife. The person who has to make the portfolio survive the entire distance (often alone, in her eighties and nineties) is disproportionately a woman. So the plan can’t be built for the average of two lives. It has to be built for the last survivor.

Second, the widow’s penalty. When one spouse dies, the survivor usually keeps close to the same expenses but starts filing taxes as a single person, in narrower brackets, often with one Social Security check gone. I’ve covered the widow’s penalty in depth, and here’s how it connects to withdrawal rates: the exact stretch of retirement a woman is most likely to face alone is also the stretch where her taxes quietly rise. Your withdrawal rate has to leave room for that.

Third, the balances and the allocation. Career interruptions for caregiving, years out of the workforce, the wage gap compounding over decades: many accomplished women arrive at retirement with strong but somewhat smaller balances than a same-title man, built from fewer contributing years. And study after study finds women, on average, hold more conservative portfolios. That instinct protects you in a crash. But a portfolio that’s too conservative over a 37-year retirement can actually lower the amount you can safely withdraw, because it doesn’t outrun inflation. Longer life, thinner cushion, more cautious mix. Same rule, more strain.

The Longevity Discount

Here’s the reframe I use with clients. Take the classic 4% and shave off the piece that accounts for your longer life and your specific risks. Call it the longevity discount. For many women planning a long retirement, that lands the starting number somewhere in the low 3% range rather than 4%.

But that’s a starting number for a rigid, set-it-and-never-touch-it plan. The 4% rule’s dirty secret is that it assumes you’ll raise your spending with inflation every single year, through crashes and booms alike, and never adjust. Nobody actually lives that way. The moment you allow any flexibility, the math changes dramatically in your favor. The research is consistent on this point: retirees willing to tolerate some year-to-year fluctuation in spending can start meaningfully higher (in some approaches close to 5% or even 6%) as long as they ease off in down years. That’s not deprivation. That’s spending like a real person instead of a spreadsheet.

So the longevity discount is real, but it isn’t a life sentence. It’s the starting point for a strategy. Which brings me to the levers.

Three Levers That Improve Your Retirement Withdrawal Strategy

Each of these raises the amount you can safely spend. Together, they’re the difference between a scary-low number and a confident one.

Lever one: guardrails instead of autopilot. Rather than picking one number and raising it with inflation forever, you set an upper and lower guardrail around your withdrawals. In strong markets, you give yourself a raise. In a bad stretch, you trim, often just skipping an inflation increase, not cutting your actual lifestyle. This single change lets most people start higher than the rigid 4% and still be safer, because the plan bends instead of breaking. Guardrails are also the backbone of the full retirement withdrawal strategy I’ve laid out, which covers which accounts to draw from and in what order. It’s the biggest lever, and it’s the opposite of what the old rule tells you to do.

Lever two: Social Security as longevity insurance. This one was made for women. Every year you delay claiming past your full retirement age, up to 70, your benefit grows by about 8% per year in delayed retirement credits: a larger check, inflation-adjusted, for life. For the person most likely to live longest and to become the surviving spouse, a bigger guaranteed check at 70 is the best longevity insurance available, and in a couple, the higher earner delaying protects the survivor’s check too. Delaying is often what lets you take a little more from the portfolio in your sixties, because you know a bigger guaranteed paycheck is coming. Just plan for the tax side as well: a portion of your Social Security benefit is likely taxable, and that belongs in the withdrawal math.

Lever three: allocation plus tax location. A portfolio built to last 37 years usually needs more growth than fear wants to allow, held in the right accounts so taxes don’t eat the withdrawals. This is where Roth work earns its keep: money converted to Roth in your low-income years comes out tax-free later, which stretches every dollar you withdraw and blunts the widow’s-penalty tax squeeze. If you haven’t looked at it yet, start with whether a Roth IRA conversion is right for you. The bracket planning and account-location decisions behind all of this are the framework I lay out in The Executive Woman’s Tax Playbook. Because the withdrawal rate isn’t just how much you take. It’s how much you keep.

The 4% rule isn’t a lie. It’s a hand-me-down. It was tailored for a 65-year-old man in 1994 planning for 30 years, and you are very likely planning for more. Don’t ask “is the 4% rule dead?” Ask the better question: what’s my number, for my life, and which levers do I have?

What to Do This Week

  • Calculate your real horizon. Take the age you actually want to retire and subtract it from 95 (not 90, not “average”). If the answer is more than 30, the classic 4% rule wasn’t built for your timeline, and your starting rate likely belongs in the mid-to-low 3s.
  • Run the year-one dollar math at 3.3% and 3.9%. Multiply your current portfolio by both rates and compare the results to what you actually plan to spend. If the gap is uncomfortable, you’ve found your planning agenda. Better now than at 88.
  • Look up your Social Security benefit at 70, not just at 62 or FRA. Log in at ssa.gov and compare the three numbers. If you’re the higher earner in a couple, that age-70 figure is also your spouse’s survivor protection.
  • Check your allocation against your horizon. If your portfolio is positioned for the next five years instead of the next 35, it may be quietly lowering your safe withdrawal rate. Note your stock percentage this week and ask whether it can outrun inflation for as long as you’ll need it to.
  • Get a baseline readiness number. Before you tune withdrawal rates, know where you stand overall. Here’s how to calculate your retirement readiness.

Want the full framework?

The tax moves behind this episode (the bracket planning, Roth sequencing, and account-location decisions I walk through with clients) are in my free guide, The Executive Woman’s Tax Playbook. It’s a free PDF you can read in one sitting. Get the playbook here.

Hazel Secco, CFP®, CDFA®, is the founder of Align Financial Solutions, a fee-only fiduciary firm that works with high-earning women and female executives on retirement planning, equity compensation, and tax strategy.

Already past the research phase? Book a free 15-minute Align Call: https://alignfinancialsolutions.com/book-a-call/

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Frequently Asked Questions

Is the 4% rule still safe in 2026?

Not quite. Morningstar’s most recent research puts the safe starting withdrawal rate at roughly 3.9 percent for a new retiree with a 30-year horizon, and the figure has been as low as 3.3 percent in recent years. For women funding 35 to 40 years, the research points closer to the low-to-mid 3 percent range as a starting point.

Why doesn’t the 4% rule work for women?

The rule was built in 1994 around a 30-year retirement, and a healthy woman retiring at 58 or 60 may fund 35 to 40 years. Women are also usually the surviving spouse, which brings the widow’s penalty of narrower single-filer tax brackets, and they tend to hold more conservative portfolios built from fewer contributing years.

How much can I withdraw from $2 million in retirement?

At 4 percent, $80,000 in year one; at 3.3 percent, $66,000 from the same portfolio. That $14,000 gap is why the starting rate matters more than the rule of thumb suggests. Each withdrawal is then raised with inflation every year, so a 37-year horizon gives inflation 37 years to compound against your spending.

Can I safely withdraw more than 4% in retirement?

Yes, if you build in flexibility. Research consistently shows retirees who accept some year-to-year fluctuation, easing off in down markets, can start meaningfully higher, in some approaches close to 5 or even 6 percent. Guardrails around withdrawals, delaying Social Security to 70, and a growth-oriented allocation with smart tax location all raise your safe number.

Disclaimer: Advisory services are offered through Align Financial Solutions LLC (“AFS”), an Investment Advisor in the State of New Jersey. This article is for educational purposes only and does not constitute personalized tax, legal, investment, or financial planning advice. Rules and figures are current for 2026 and subject to change. All client scenarios are hypothetical composites for illustration and do not represent any specific client outcome. Consult a qualified professional about your specific situation.

Sources

  1. What’s a Safe Retirement Withdrawal Rate for 2026? Morningstar. https://www.morningstar.com/retirement/whats-safe-retirement-withdrawal-rate-2026
  2. Delayed Retirement Credits. Social Security Administration. https://www.ssa.gov/benefits/retirement/planner/delayret.html
  3. Actuarial Life Table. Social Security Administration, Office of the Chief Actuary. https://www.ssa.gov/oact/STATS/table4c6.html
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