Safe Withdrawal Rate for a 35-Year Retirement (Retire at 60)

The safe withdrawal rate for a 35-year retirement is about 3.5%, according to Morningstar. That fits someone who retires at 60 and plans to age 95. Morningstar defines it as the starting rate that still leaves money in the account in 90% of simulated outcomes, with spending raised each year for inflation. On a $1 million portfolio, 3.5% means $35,000 in year one. The 4% rule would give you $40,000. That's $5,000 a year less, every year, for 35 years.

So the cost of planning for a longer life is real, but you can work with it. Below we cover where the 3.5% comes from, why other sources say 3.1% or 3.35%, what "safe" actually means, and how to check the number against your own plan.

The short answer: about 3.5%, and lower as the horizon grows

Morningstar has published safe starting rates for several retirement lengths:

Sources: 30-year figure from Morningstar, The State of Retirement Income 2025 (Dec 2025). Longer horizons from Morningstar, How Much Can You Safely Withdraw If You Retire Early?

The longer-horizon figures assume a 90% success rate, inflation-adjusted spending and a 40/60 stock/bond portfolio. Morningstar also reports that 3.5% holds across portfolios with roughly 30% to 60% in stocks.

Read the table as a ladder, not as four results from one identical model run. Morningstar's 30-year figure rose from 3.7% to 3.9% in its latest report, and Boldin's write-up notes that part of the increase came from a change in method. The exact numbers move from year to year. The pattern holds: a longer retirement needs a lower starting rate.

In savings terms: a 3.5% rate means having about 28.6 times your first-year portfolio withdrawal saved. The 4% rule asks for 25 times.

Why a 35-year retirement needs a lower rate than 4%

The 4% rule comes from William Bengen's research, and it was built for a 30-year retirement. Add five years and you add five more years of withdrawals, five more years of inflation, and more time for a bad run of markets to do lasting damage.

Michael Kitces, drawing on Bengen's work, shows how this plays out. Extending the horizon from 30 to 45 years cut the safe rate from about 4.1% to 3.5%. Kitces also found that the rate barely falls further once you go past 40 to 45 years (Kitces, What Happens If You Outlive Your Safe Withdrawal Rate Time Horizon?).

That flattening helps you. Most of the cost of a longer retirement comes in the first few extra years. Moving from a 30-year plan to a 35-year plan costs more than moving from a 40-year plan to a 45-year plan.

Is 35 years even the right horizon?

If you're retiring at 60, a 35-year plan probably isn't overly cautious.

About 1 in 3 65-year-olds may live to 90 or beyond. That comes from the Social Security Administration's own planning guidance (Retirement Information for Medicare Beneficiaries, 2026). A plan that ends at 85 is quietly betting you won't be in that third. For a couple, the odds that at least one of you lives a long time are higher still.

Kitces also points out a quieter problem. You may not find out you needed a 35-year plan until you're in year 31. By then the decision has already been made. A starting rate picked once at 60 and never checked again can't account for that.

That's why the plan you build at Monte Climb runs to 95 by default, and you can extend it further.

Why the numbers disagree: 3.1%, 3.35%, 3.5%

Search for a 35-year safe withdrawal rate and you'll find several different answers. They usually aren't contradicting each other. Each one answers a slightly different question.

Four things explain most of the gap:

1. Stock/bond mix. Different portfolios support different rates, and studies don't all test the same one.
2. Success target. A rate built to survive 90% of futures will be higher than one built to survive 95%.
3. Method and data. Some studies replay historical market returns. Others simulate thousands of possible futures using assumptions about returns going forward. US-only and global data also give different answers.
4. Taxes and fees. A before-tax rate isn't money you can spend. Fees take a cut every year too.

The practical takeaway: a credible range for 35 years sits a little above 3%, around the mid-3s. Where you fall in it depends on your own portfolio, fees and how much flexibility you have.

What "90% success" really means

"Safe" doesn't mean guaranteed. A 90% success rate means that in 1,000 simulated futures, about 900 still have money at the end and about 100 don't.

That's the question a Monte Carlo test answers. The name sounds technical, but the idea is simple. Instead of assuming one average return every year, you run your plan through many possible market paths: good decades, bad decades, and bad years arriving at the worst time. Then you count how many of those paths stay funded.

One average-return projection can't show you that. It gives you a single tidy line, and real markets don't follow a single line.

Most articles also skip what failure looks like. Running out at 93 is very different from running out at 78. A success percentage is a starting point. It also helps to know when the failing futures run dry, and whether a small change early on, such as spending a bit less or working one more year, would have rescued them.

Four things that move your 35-year number

The 3.5% figure assumes you raise spending with inflation every year, no matter what markets do. Real life is messier, and some of that mess works in your favor.

1. Flexible spending

If you're willing to cut back after bad market years, you can start higher. Morningstar's research found that flexible withdrawal strategies can support starting rates as high as 5.7% (Boldin). That figure is for a 30-year horizon, so don't apply it directly to 35 years. The direction still holds: flexibility buys you room.

2. When Social Security starts

If you retire at 60 and claim Social Security later, your savings carry the full load for the early years. Your withdrawals then drop once benefits begin. A single flat rate across 35 years doesn't capture that. Few published studies model it, but it can change your answer a lot.

3. Health care costs

$172,500. That's Fidelity's estimate of what one 65-year-old retiring in 2025 will spend on Medicare premiums, deductibles and prescriptions over retirement, and it doesn't include long-term care (Fidelity Investments, 2025 Retiree Health Care Cost Estimate, Jul 2025). Retire at 60 and you also have the years before Medicare to cover. It belongs in your plan as its own line item, not as a rounding error. The Monte Climb engine charges Medicare premiums and income-based surcharges year by year instead of using one flat guess.

4. Spending isn't flat

Real retirement spending tends to dip in the middle years and rise again later as care costs grow. Most safe-withdrawal studies assume flat, inflation-adjusted spending. Treat that as a simplifying assumption, not a forecast.

How to test your own rate

Published rates are averages built on someone else's assumptions. Your plan has its own savings, spending, retirement age and timeline. Here's a sensible order:

• Start with the benchmark. Divide your planned annual portfolio withdrawal by your savings. If you're well above 3.5% for a 35-year horizon, look closer.
• Check the horizon. Retiring at 60? Plan to at least 95.
• Test it against many futures, not one. You want a success rate, and ideally to see when the failing futures run out.
• Re-check every year. That's the fix for Kitces's year-31 problem. A rate is a starting point, not a one-time decision.

This is where we can help. Enter three numbers at monteclimb.com: your age, your retirement savings and your monthly spending. We run them through 1,000 simulated futures and give you the share that stay funded. It runs in your browser, and nothing is saved until you choose. Then you can ask William, our AI planner, follow-up questions like "Am I on track?" or "What's a sustainable spend?" and he'll show his work.

Keep in mind that this is planning software, not advice. The answer is a probability, not a promise.

The bottom line

For a 35-year retirement, about 3.5% is a reasonable starting benchmark, backed by Morningstar's research at a 90% success rate. Other credible estimates fall a little lower, depending on portfolio mix, taxes and method. Flexibility, Social Security timing and realistic health care costs can each move your own number up or down.

To see where your plan stands, Show my answer →

Frequently asked questions

What is the safe withdrawal rate for a 35-year retirement?

Morningstar puts it at about 3.5%. That assumes a 90% chance of the money lasting, spending that rises with inflation each year, and a 40/60 stock/bond portfolio. Morningstar reports that 3.5% holds for portfolios with roughly 30% to 60% in stocks.

Is the 4% rule safe if I retire at 60?

The 4% rule was designed for a 30-year retirement. If you retire at 60 and plan to 95, you need 35 years, and research points to a lower starting rate of about 3.5%. A 4% rate isn't automatically a failure, but it carries more risk over 35 years. Test it against your own numbers.

How much do I need saved for a 35-year retirement?

At a 3.5% withdrawal rate, you need about 28.6 times your first-year portfolio withdrawal, compared with 25 times under the 4% rule. Some early-retirement communities, such as ChooseFI, suggest 29 to 33 times annual spending as a rule of thumb.

Why do different sources give different safe withdrawal rates for 35 years?

They test different portfolios, use different success targets (90% vs. 95%), rely on different methods and data (historical returns vs. Monte Carlo, US vs. global), and handle taxes and fees differently. For example, PWL Capital's 2018 figure of about 3.1% was calculated before tax on a 50/50 portfolio.

Does Social Security change my safe withdrawal rate?

Yes. If you retire before claiming, your savings cover more of your spending in the early years, and withdrawals can drop once benefits begin. A single flat rate across 35 years doesn't capture that, so it's worth modeling your actual claiming timeline.