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For a U.S. retiree seeking steady, inflation-adjusted spending over 30 years, 3.9% is the latest Morningstar starting benchmark. On a $1 million portfolio, that equals $39,000 in the first year. You would generally increase that dollar amount with inflation rather than withdraw 3.9% of whatever the portfolio is worth each year. The estimate was modeled to leave assets at the end of the period in 90% of tested scenarios, not to guarantee that any household will succeed.
Your appropriate rate can be lower or higher after accounting for retirement length, investment mix, other lifetime income, and how much spending flexibility you can tolerate. A flexible method can begin near 6% in Morningstar’s cited work, but only because withdrawals can fall when markets or inflation make the original plan unsafe.
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What a retirement withdrawal rate actually measures
A withdrawal rate is the first-year withdrawal divided by the value of the portfolio on the date withdrawals begin.
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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsFor example, a 3.9% rate on $1 million produces an initial withdrawal of $39,000. Under a fixed-real (inflation-adjusted) strategy, you do not recalculate 3.9% on the new account balance every year. Instead, you increase the original dollar withdrawal to reflect inflation, subject to the strategy’s rules.
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If inflation is 3% in the second year, the $39,000 target would become approximately $40,170. A market decline does not automatically reduce that planned dollar amount, which is why this approach can provide relatively stable spending but expose the portfolio to depletion risk.
By contrast, a constant-percentage approach applies a chosen percentage to the current balance each year. Spending falls after a market decline and rises after a gain. That is a different promise from fixed-real spending, so its starting percentage cannot be compared fairly with a fixed-real rate without considering the spending changes.
The latest U.S. benchmark and what it assumes
Morningstar’s retirement-income research published December 3, 2025, estimated a 3.9% highest starting rate for fixed, inflation-adjusted portfolio withdrawals over an assumed 30-year retirement. The model used a 90% probability of having assets remaining at the end of the modeled period. Social Security and other nonportfolio income were excluded from that portfolio calculation.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match“Assets remaining” is the model’s definition of success. It does not mean the retiree maintained a desired lifestyle, avoided every spending cut, or received a particular inheritance. Nor does a 90% modeled result mean that your personal odds are exactly 90%.
| Annual estimate | Morningstar starting-rate estimate | How to interpret it |
|---|---|---|
| 2021 | 3.3% | Historical estimate in Morningstar’s annual series; assumptions at that time produced a lower result. |
| 2022 | 3.8% | Year-specific estimate, not a recommendation to reset an existing plan. |
| 2023 | 4.0% | Estimate under that year’s return, inflation and portfolio assumptions. |
| 2024 | 3.7% | Estimate under that year’s assumptions. |
| Latest, published Dec. 3, 2025 | 3.9% | Highest modeled fixed-real starting rate for 30 years at a 90% asset-retention threshold. |
The changing series illustrates why a withdrawal estimate is an assumption-sensitive planning input. It is not evidence that someone who retired at 3.7% should automatically move to 3.9%, or that an existing retiree should change spending every time a new annual estimate appears.
Why 3.9% is a starting point, not a personal answer
Retirement horizon
The benchmark assumes 30 years. A 65-year-old planning to age 95 has a different exposure than a 75-year-old planning for 20 years, while a person retiring in their 50s may need a materially longer horizon. A longer period gives the portfolio more time to encounter adverse return sequences and inflation episodes. A shorter horizon may support a different rate, but the benchmark should not be mechanically extended or shortened without modeling the actual period.
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Portfolio allocation
The mix of stocks, bonds and cash affects both growth potential and drawdown behavior. A portfolio with more growth assets can have higher expected long-run returns but larger interim losses. A more conservative mix may reduce volatility while limiting recovery potential. The cited benchmark is not a universal rate for every allocation; use a result that corresponds to the portfolio you can actually maintain.
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Forward-looking return and inflation assumptions
Withdrawal studies depend on assumptions about future returns, inflation and the sequence in which those returns occur. Those assumptions change over time, which helps explain the annual estimates shown above. Treat the result as a scenario estimate rather than a forecast of your account balance.
Spending pattern
Essential bills, discretionary travel and gifts do not have the same flexibility. A retiree who can postpone a trip or reduce gifts during a bear market has more options than one whose entire budget is healthcare, housing and food. Separate the budget into needs, adjustable wants and one-time expenses before selecting a rate.
Income outside the portfolio
Social Security, a pension or an annuity can cover part of recurring expenses, reducing the amount the portfolio must supply. The 3.9% figure excludes those payments. Calculate the portfolio rate on the amount the portfolio actually needs to provide, not on total household spending.
Fixed-real versus flexible withdrawal methods
The central choice is whether spending stability or the ability to preserve assets matters more when conditions deteriorate. Morningstar’s cited work describes flexible approaches that can begin near 6%, but the higher initial amount comes with spending changes. The following comparison focuses on the trade-offs rather than declaring one method best for every household.
| Method | How the amount is set | Initial withdrawal potential | Spending behavior after a loss | Main planning question |
|---|---|---|---|---|
| Fixed-real | Set a first-year dollar amount, then adjust that amount for inflation under the plan’s rules. | About 3.9% in Morningstar’s 30-year, 90%-asset-retention U.S. benchmark. | Planned dollar spending stays comparatively steady unless you voluntarily change it. | Can essential expenses be funded even if early returns are poor? |
| Constant-percentage | Withdraw a selected percentage of the current portfolio value each year. | Can support a larger first-year dollar amount than a fixed-real plan, depending on assumptions. | Spending automatically falls after a decline and rises after a gain. | Can your budget absorb a variable paycheck? |
| Guardrail-style flexible plan | Start with a target amount and predefine conditions for cuts or raises when the portfolio crosses chosen boundaries. | May start higher than a fixed-real plan if spending can be reduced. | Changes occur only when the written triggers are reached. | Which cuts are acceptable, and who will enforce the rule? |
| Endowment-style approach | Uses a formula tied to the current balance and a spending objective, producing a variable annual amount. | Depends on the formula and portfolio assumptions. | Annual spending follows portfolio conditions rather than inflation alone. | Is a predictable percentage of assets more important than a predictable lifestyle? |
A flexible strategy is not “free” extra income. Its higher starting amount is compensation for accepting lower spending in unfavorable conditions. Write the reduction rules before retirement, while decisions are less emotional, and test whether the resulting low-spending case is workable.
How to choose your starting rate step by step
- Set the planning horizon. Choose the age at which withdrawals begin and an age through which the plan must work. Include a margin for longevity rather than using an average life expectancy as an end date.
- Build a first-year spending target. List recurring essentials, adjustable wants, taxes and irregular costs separately. Do not assume every year will have the same expenses; identify large purchases such as a vehicle, home repair or family support.
- Subtract predictable nonportfolio income. Include pensions and the Social Security amount you are actually planning to claim. The remaining annual need is the amount the portfolio must cover. Specific claiming and tax rules require current, jurisdiction-specific advice and are outside this benchmark.
- Calculate the implied rate. Divide the first-year portfolio withdrawal by the investable portfolio on the withdrawal date. For example, $48,000 needed from a $1.2 million portfolio implies 4%. Compare that result with the 3.9% U.S. benchmark rather than treating the benchmark as a required withdrawal.
- Choose a spending promise. If the 4% example requires nearly all spending to be inflation-adjusted and unchanged, a fixed-real plan may be too aggressive for the stated 30-year, 90% benchmark. If travel and gifts can be reduced, model a flexible alternative and document the cuts.
- Match the model to the actual portfolio. Use the asset allocation and account structure you intend to hold, including the cash reserve you would maintain. A rate derived for one allocation should not be presented as evidence for another.
- Stress-test the first five years. Examine what happens if markets fall soon after retirement and inflation remains high. Early losses combined with unchanged withdrawals can permanently reduce the capital available for later recovery.
- Define a review process. Set a calendar review, but do not automatically replace your plan with the newest published percentage. Recheck the horizon, spending, income, allocation and remaining balance together.
Why the first five years deserve special attention
Sequence-of-returns risk is the danger that poor returns arrive while withdrawals are already being made. Two retirees can earn the same average return over a decade yet have different outcomes if one experiences losses at the beginning and the other experiences them later.
High inflation early in retirement adds pressure because a fixed-real plan raises the dollar withdrawal while the portfolio may be depressed. The combination can force the sale of more shares at low prices and leave fewer assets to participate in a recovery.
Before adopting a rate, answer these practical questions:
- Which discretionary expenses would you pause after a substantial market decline?
- Would you reduce the withdrawal temporarily, or only stop inflation increases?
- Could guaranteed income cover essential bills while the portfolio recovers?
- How would you pay for a large one-time expense during a bad market year?
- Would a smaller legacy be acceptable in exchange for higher lifetime spending?
These are not predictions about when a downturn will occur. They are tests of whether the spending rule remains usable when conditions are unfavorable.
Using Social Security, pensions and annuities in the plan
Predictable lifetime income changes the portfolio’s job. If a pension and Social Security cover housing, food and utilities, the portfolio may fund travel, gifts and reserves rather than every essential bill. That can make a flexible withdrawal plan more practical.
Morningstar describes delaying Social Security and using flexible withdrawals as strategies that can pair well. That observation is not a universal claiming recommendation: delaying may increase later lifetime income while requiring more portfolio spending beforehand, and the right choice depends on health, household circumstances, cash needs and current rules.
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An annuity can also provide predictable income, but the benchmark does not establish that any reader should buy one. Evaluate guarantees, inflation protection, liquidity, fees, insurer strength and the effect on assets available to heirs before treating an annuity payment as part of the plan.
How much flexibility is enough?
Use the following decision framework to translate preferences into a method.
| If this describes you | Planning implication | Questions to resolve |
|---|---|---|
| Most expenses are essential and must rise with inflation. | Favor a conservative starting rate and protect a reliable income floor. | What income source covers necessities if the portfolio falls? |
| You can postpone travel, gifts or upgrades for several years. | Model a flexible method with explicit spending cuts. | Which categories are cut first, and how large can the cut be? |
| You have substantial pension or Social Security income. | Calculate the portfolio rate only on the remaining spending gap. | Are the income payments inflation-adjusted and dependable? |
| You are retiring early or planning for a very long life. | Do not assume the 30-year benchmark applies unchanged. | What rate works for the longer horizon and the chosen allocation? |
| Leaving a large bequest is a priority. | Use a larger safety margin or a rule that protects the portfolio after weak returns. | How much lifetime spending would you trade for the legacy goal? |
How to write a flexible spending rule
A flexible plan is only useful if its actions are specific enough to follow. Put the rule in writing and identify the account value, date and spending category that control each decision.
- Set a normal-year amount. State the dollar withdrawal you expect when the portfolio is near its planned path.
- Separate fixed and adjustable spending. Keep essential bills distinct from travel, gifts, renovations and other postponable costs.
- Define a cut trigger. For example, specify that adjustable spending will be reduced when the portfolio falls below a predetermined level relative to the plan. The threshold should be chosen with a qualified adviser or a model that reflects your own allocation; no single trigger is universal.
- Define a raise trigger. If the portfolio substantially exceeds the plan, decide whether increases will restore purchasing power, fund a one-time expense or permanently raise spending.
- Set a floor. State the minimum annual amount you believe is workable and the income sources that protect it.
- Assign responsibility. Decide who calculates the withdrawal, when the review occurs and how a disagreement between spouses will be resolved.
Do not describe a plan as flexible merely because you hope to spend less in a downturn. The reduction amount, timing and categories should be known before the portfolio is under pressure.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Common mistakes when selecting a rate
- Reapplying the percentage every year. That changes a fixed-real plan into a variable-percentage plan and can produce a much lower paycheck after a market decline.
- Treating 3.9% as a guarantee. The figure is a modeled U.S. estimate for a specific horizon, spending method and asset-retention threshold.
- Comparing a flexible 6% figure with a fixed 3.9% figure without comparing spending. The flexible retiree may receive less after poor returns.
- Ignoring outside income. Applying a portfolio rate to total spending overstates the amount the investments must provide when pensions or Social Security cover part of the budget.
- Using a 30-year number for every retiree. A shorter or longer horizon changes the problem.
- Changing the plan whenever an annual estimate changes. Annual figures reflect changing assumptions; they are not instructions to reset an existing retirement budget.
- Leaving taxes and required distributions implicit. The cited material does not establish current tax treatment or required minimum distribution rules. Coordinate the withdrawal schedule with current rules for your jurisdiction and account types.
- Testing only average returns. A satisfactory average can conceal a damaging sequence of early losses and inflation.
What the modeling can and cannot tell you
Morningstar’s methodology explainer describes Monte Carlo simulations that vary the sequence of returns across 1,000 potential return paths. That approach helps show how a plan behaves across many hypothetical sequences, but it cannot enumerate every future market, inflation or personal-spending outcome.
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The cited estimates are U.S.-focused. Do not combine the U.S. benchmark with a rate calculated for the United Kingdom or another country; tax systems, inflation, markets and benefit programs differ.
A practical annual review checklist
- Record the portfolio value and the actual amount withdrawn.
- Compare essential and discretionary spending with the original plan.
- Update the expected retirement horizon if health or family circumstances changed.
- Confirm the amount and timing of pensions, Social Security and other lifetime income.
- Check whether the portfolio allocation still matches the assumptions used for the rate.
- Review inflation and whether the planned increase is affordable.
- Apply the written flexibility rules rather than making an ad hoc cut or raise.
- Revisit estate, charitable and family-support goals separately from the spending decision.
Reviewing the plan does not mean chasing the latest headline rate. It means checking whether the original assumptions, cash need and ability to adjust spending are still true.
Putting the decision together
For a U.S. household seeking a 30-year retirement with relatively stable, inflation-adjusted portfolio spending, use Morningstar’s 3.9% estimate published December 3, 2025, as a benchmark for discussion. Apply it to the portfolio’s first-year withdrawal, not to total spending before subtracting reliable outside income.
Move below that benchmark when the horizon is longer, essential spending is inflexible, the portfolio is not aligned with the assumptions, or preserving assets is especially important. Consider a flexible approach when you can specify and accept spending reductions; Morningstar’s cited research places the potential starting amount near 6% for such methods, but the amount is not comparable to an unchanged inflation-adjusted paycheck.
The defensible rate is the one whose bad-case spending decisions you have already written down and can carry out. A percentage without a horizon, portfolio, income plan and adjustment rule is not a retirement plan.
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