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Retirement Income

The 4% Rule vs a Paycheck for Life: Two Ways to Not Run Out of Money

The 4 percent rule is a research-based estimate of how much you can withdraw from your own portfolio each year without running out over a 30-year retirement. A lifetime annuity payout is a contractual payment that continues as long as you live. One keeps your money and your risk. The other trades both away for certainty.

There are two ways to make sure a jar of money lasts. You can ration it yourself, taking a measured amount each month and adjusting when the jar looks low. Or you can hand the jar to someone who agrees to send you a check every month for the rest of your life, whatever happens to the contents.

The first approach is the 4 percent rule and its descendants. The jar stays yours, the leftovers go to your heirs, and you carry every risk: markets, inflation, and the possibility of living longer than the plan assumed. The second approach is a lifetime income annuity. The check arrives regardless, and the jar is no longer yours.

Neither one is the right answer for everyone, and the industry does both sides a disservice by pretending otherwise. What follows is the honest comparison, including the one distinction that causes more confusion than anything else in retirement income: a withdrawal rate and a payout rate are not the same kind of number, and comparing them directly will mislead you.

What is the 4 percent rule?

The 4 percent rule says you can withdraw 4 percent of your portfolio in the first year of retirement, adjust that dollar amount for inflation each year after, and have a high likelihood of the money lasting 30 years. It comes from a specific piece of research, not from an industry convention.

The original study

William Bengen published “Determining Withdrawal Rates Using Historical Data” in the Journal of Financial Planning in October 1994. Testing historical returns for a portfolio of US large-cap stocks and intermediate-term Treasuries, he found that an initial withdrawal of about 4 percent, adjusted for inflation annually, survived a 30-year retirement in every historical starting year he tested. He later called that figure the SAFEMAX, and in the original work it was about 4.15 percent.

What “the rule” actually is

A worst-case historical finding, not a law and not a prediction. Bengen’s contribution was to test a withdrawal strategy against real sequences of returns rather than averages, which was the important innovation.

What it assumes

A 30-year horizon, a diversified stock and bond portfolio, annual inflation adjustments, and returns that resemble the historical record. Change any of those and the number changes.

That last point is why the figure has moved around ever since. It is an output of assumptions, and the assumptions are the argument.

Is the 4 percent rule dead?

No, but the number is not fixed, and current research from independent firms puts the starting figure below 4 percent for someone retiring today. These are third-party research findings about historical and modeled outcomes. They are not AnnuaLife projections and not a forecast of what will happen to your money.

4.15%
Bengen’s original SAFEMAX, Journal of Financial Planning, October 1994
3.9%
Morningstar base-case starting withdrawal rate for a 2026 retiree
5.7%
Morningstar figure when flexible spending strategies are used

Morningstar’s research series “The State of Retirement Income: 2025” put the base-case safe starting withdrawal rate at 3.9 percent for someone retiring in 2026, up from 3.7 percent in the prior year’s edition. That base case assumes a 30-year horizon, a 90 percent probability of ending the period with money left, and a portfolio holding roughly 30 to 50 percent in equities with the rest in bonds and cash. Morningstar also found that flexible approaches, such as adjusting spending with market performance, delaying Social Security, or using Treasury inflation-protected securities, could support starting rates as high as 5.7 percent.

Read the assumptions, not the headline number. Every safe-withdrawal figure you will ever see is the answer to a specific question: this portfolio, this horizon, this definition of success. A 90 percent success rate over 30 years means the modeled plan failed roughly one time in ten, and also means it frequently ended with far more money than the retiree spent. That second outcome is not usually described as a failure, but for a retiree who under-spent an entire retirement, it is one.

So the rule is not dead. It has become what it always should have been: a starting estimate that you revisit, rather than a setting you choose once.

What is the difference between a withdrawal rate and a payout rate?

A withdrawal rate is the percentage of your own money you spend each year. A payout rate is the percentage of your premium an insurer pays you each year, and a large part of that payment is your own principal coming back to you. They are not comparable numbers, and treating them as if they are is the single most common error in this comparison.

Why an 8 percent payout rate is not an 8 percent return. If you hand an insurer $100,000 at 65 and receive about $8,100 a year for life, the insurer is not earning you 8 percent. It is returning your own money in installments, plus interest, and pooling the risk that you live longer than average across everyone who bought the same contract. The number is high because the principal is being spent down on purpose. Compare payout rates to other payout rates, and withdrawal rates to other withdrawal rates. Never across.

Withdrawal rate Payout rate
What it measures Percentage of your portfolio spent in year one Annual income per dollar of premium paid to an insurer
Whose money is being paid out Yours, and it stays yours Yours, converted into a stream you no longer own
Includes return of principal No, principal remains your asset Yes, that is most of what the payment is
Can it run out Yes, if markets and longevity work against you No, a life contract pays as long as you live
Who sets it You, guided by research The insurance company, by contract at purchase
What backs it Market returns The claims-paying ability of the issuing insurer. Not FDIC insured, no bank or government backing

How do the two approaches compare?

They differ on almost every dimension that matters, and the differences are trade-offs rather than advantages. Here is the honest side-by-side.

Dimension 4 percent rule (portfolio withdrawals) Lifetime income annuity
Who carries longevity risk You The insurance company
Who carries market risk You The insurance company, for the guaranteed payment
Income certainty An estimate, revisited as conditions change A contractual amount, subject to the insurer’s claims-paying ability
Access to the money Full, it is your portfolio Generally none once income begins
Legacy Whatever remains goes to heirs Nothing on a life-only contract, unless you buy a refund or period-certain option
Inflation The rule adjusts withdrawals annually for inflation Level unless you buy an increasing option, which lowers the starting payment
Upside if markets do well Yours None on the guaranteed payment
Downside if markets do poorly Yours, and it may force spending cuts Absorbed by the insurer for the contracted payment
Flexibility to change course High Very low after the free-look period ends

One approach protects your money from you. The other protects you from your money running out.

The AnnuaLife Team

What does the math look like on $500,000?

The two produce very different first-year incomes, and understanding why is more useful than the comparison itself. Here is the arithmetic with current, dated inputs.

A worked example on $500,000, using published figures. Under the 3.9 percent base case Morningstar published for 2026 retirees, a $500,000 portfolio supports about $19,500 in the first year, with the dollar amount adjusted for inflation each year after. The $500,000 stays yours, may grow, may shrink, and whatever is left passes to your heirs.

Under a lifetime income annuity, the AnnuaLife immediate annuity rates board, last updated July 29, 2026, showed the best available quotes across surveyed A-rated carriers at roughly $679 per month per $100,000 of premium for a 65-year-old man on a single-life contract with income starting about a month after purchase. On $500,000 that is about $3,395 per month, or roughly $40,740 in the first year. The payment is level, it continues for life, and on a life-only contract the principal is gone.

Those payout figures are dated illustration data rather than quotes, they vary by age, sex, state, and carrier, and they change without notice. Payments are backed by the issuing insurer’s claims-paying ability. Annuities are not FDIC insured. Current figures are on our immediate annuity rates page.

The annuity’s first-year income is roughly double, and that gap is not evidence that one approach wins. It is the visible price of the trade. The higher payment exists because you gave up the principal, gave up the upside, gave up access, and gave up the inheritance. The portfolio’s lower withdrawal exists because you kept all four.

The comparison also shifts with time. Payout rates rise with age, since the insurer expects to make fewer payments. On the same July 29, 2026 board, a 70-year-old man saw roughly $754 per month per $100,000 and a 75-year-old about $882. A withdrawal rate, meanwhile, can also rise with a shorter horizon, since a 20-year plan supports more than a 30-year plan. Both approaches get cheaper the later you start them.

Do I have to pick one?

No, and most people should not. The common professional approach is partial: cover essential expenses with lifetime income and run a withdrawal strategy on the rest.

  • Cover the floor, invest the rest. Use lifetime income only for the essential spending that Social Security does not already cover, then apply a withdrawal strategy to the remaining portfolio. This is the income floor approach, and it is the most common way the two tools coexist.
  • Delay Social Security first. Social Security is inflation-adjusted lifetime income already, and increasing it by delaying is usually the cheapest lifetime income available.
  • Ladder purchases across years. Buying income in tranches rather than all at once spreads out your exposure to the payout rates available on any single day.
  • Consider a deferred structure. An income rider on a deferred contract, or income starting later in life, targets the tail risk specifically. Our page on lifetime income riders covers how those work and what they cost, and the income rates board publishes dated illustration figures for them.

The useful question is never “which one.” It is “how much of my spending needs to be immune to markets and to how long I live.” That is an answer you can size.

What are the honest downsides of each?

Both approaches have real costs, and the failure modes are different in kind, not just in degree.

  • The withdrawal approach can fail. A 90 percent success rate means the modeled plan ran out roughly one time in ten. The failure mode is the worst one available: running short late in life, when you have the fewest options.
  • The withdrawal approach requires you to keep deciding. Adjusting spending in a downturn takes discipline that is easy to have in a spreadsheet and hard to have in a bad year.
  • Sequence risk is concentrated at the start. A poor market in the first years of withdrawals does lasting damage. Our guide to sequence of returns risk explains why two retirees with identical average returns can end up in different places.
  • The annuity approach gives up access permanently. Once income begins, the premium is generally not available as a lump sum, and there is no undoing the decision after the free-look period.
  • A level annuity payment loses purchasing power. Twenty years of inflation is a real erosion of a fixed payment. Increasing options exist and lower the starting amount.
  • The annuity depends on one company. Payments rest on the claims-paying ability of the issuing insurer. These contracts are not FDIC insured and carry no bank or government backing, which makes carrier financial strength part of the decision.
  • Early death is a poor outcome on a life-only contract. Refund and period-certain features address this and reduce the monthly payment.

How soon are you retiring?

Next step

Moving forward

Rationing the jar yourself keeps every option open and hands you every risk. Handing the jar over buys certainty and closes the lid. Most retirees do best when they stop treating that as an either-or and start asking which of their expenses genuinely cannot flex.

The arithmetic is a good place to start. Our annuity payout calculator shows what a given amount of premium produces in monthly income at your age, so you can compare it against your own spending rather than against a headline percentage. Our page on income annuities explains the contract types, our guide to what $100,000 actually pays works a smaller example in detail, and if you want to understand the risk you would be insuring against, start with our guide to longevity risk.

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Frequently asked questions

What is the 4 percent rule?
It is a guideline from William Bengen’s 1994 study “Determining Withdrawal Rates Using Historical Data,” published in the Journal of Financial Planning. Testing a stock and bond portfolio against historical returns, Bengen found that withdrawing about 4 percent in year one and adjusting that dollar amount for inflation annually survived 30 years in every historical starting year he tested. His original figure was about 4.15 percent.
Is the 4 percent rule still valid in 2026?
It remains a reasonable starting estimate, but independent research currently points lower for new retirees. Morningstar’s “The State of Retirement Income: 2025” put the base-case starting rate at 3.9 percent for a 2026 retiree, up from 3.7 percent the prior year, assuming a 30-year horizon, a 90 percent success probability, and a portfolio of roughly 30 to 50 percent equities. That is third-party research, not a projection of your results.
What is the difference between a withdrawal rate and a payout rate?
A withdrawal rate is the share of your own portfolio you spend each year, and the portfolio stays yours. A payout rate is the annual income an insurer pays per dollar of premium, and most of that payment is your own principal being returned. Because one includes return of principal and the other does not, comparing the two percentages directly will mislead you.
Why is an annuity payout rate higher than 4 percent?
Because it is spending your principal on purpose. The insurer returns your money in installments with interest and pools longevity across many contract holders, so the annual figure is naturally higher than a withdrawal rate designed to preserve the underlying portfolio. The higher number is the price of giving up access, upside, and the remainder to heirs.
Which is better, the 4 percent rule or an annuity?
Neither is better in the abstract, because they solve different problems. Portfolio withdrawals keep your money, your flexibility, your upside, and your risk. A lifetime annuity transfers longevity and market risk for the contracted payment and takes access and legacy in exchange. Most plans that work well use both, with lifetime income sized to essential expenses only.
Can I use both an annuity and a withdrawal strategy?
Yes, and that combination is the most common professional approach. Cover essential spending that Social Security does not already handle with lifetime income, then run a withdrawal strategy on the remaining portfolio. Because essentials are covered, the invested portion can tolerate more volatility and does not have to be sold during a downturn.
How much does a $500,000 annuity pay per month?
It depends on your age, sex, state, contract type, and the date you buy. As an illustration, the best available single-life immediate annuity quotes across surveyed A-rated carriers on the AnnuaLife immediate annuity rates board, last updated July 29, 2026, were roughly $679 per month per $100,000 for a 65-year-old man, which works out to about $3,395 per month on $500,000. Those figures are dated illustration data, not quotes, and change without notice.
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