Morningstar's 2025 Safe Withdrawal Rate: Why 3.9% is the New 4%

For decades, the 4% rule has been retirement planning gospel. But market conditions change, and so should your withdrawal strategy. Morningstar's latest research reveals what's safe to withdraw in 2025—and it's not 4%.

The 4% Rule is Dead (Sort of)

If you've spent any time reading about retirement planning, you've heard of the 4% rule: withdraw 4% of your portfolio in year one, adjust for inflation each year after, and your money should last 30 years.

This rule came from the Trinity Study in 1998, which analyzed historical market returns from 1926 to 1995. It's been the default retirement planning assumption for nearly three decades.

But here's the problem: The 4% rule was based on past market conditions. What worked when bonds yielded 6-8% and stock valuations were lower doesn't necessarily apply when starting conditions are different.

What Morningstar's 2025 Research Shows

Every year, Morningstar's retirement research team—led by Christine Benz, Amy Arnott, and Jason Kephart—publishes their State of Retirement Income report. This research recalculates safe withdrawal rates based on current market valuations, bond yields, and inflation expectations.

The 2025 Safe Withdrawal Rate: 3.9%

For a retiree planning a 30-year retirement with a 90% probability of success using fixed real withdrawals (traditional 4% rule method), Morningstar recommends:

• Starting safe withdrawal rate: 3.9%
• Optimal asset allocation: 30-50% stocks, 50-70% bonds
• Rebalance annually to maintain target allocation

This is up from 3.7% in the 2024 report but still below the traditional 4% rule.

Why Did the Safe Withdrawal Rate Change?

The safe withdrawal rate isn't a fixed number—it changes based on market conditions at the time you retire. Here's how it has evolved:

What Changed in 2025?

The increase from 3.7% to 3.9% reflects:

• Slight equity valuation moderation: While stocks remain expensive by historical standards, 2024's strong returns didn't push valuations dramatically higher
• Stable bond yields: Interest rates stabilized after the Fed's rate hiking cycle, providing more predictable fixed-income returns
• Inflation normalization: Expected inflation rates returned closer to the Fed's 2% target

The Better Strategy: Dynamic Withdrawals (5.2% Starting Rate)

Here's where it gets interesting: If you're willing to adjust your spending based on portfolio performance, you can start with a much higher withdrawal rate.

Morningstar tested several flexible withdrawal strategies and found that guardrails-based strategies can support a starting withdrawal rate of 5.2% with the same 90% success rate.

How the Guardrails Strategy Works

Instead of locking in a fixed inflation-adjusted withdrawal, guardrails strategies adjust spending based on portfolio performance:

1. Start with a higher withdrawal rate (5.2% for a 40% stock/60% bond portfolio)
2. Set upper and lower "guardrails" (typically +20% and -10% from initial withdrawal rate)
3. If portfolio grows strongly: Take an inflation raise + bonus increase (hit upper guardrail)
4. If portfolio underperforms: Reduce spending by 10% (hit lower guardrail)
5. Most years: Just take your normal inflation adjustment

Our Dynamic Withdrawal Guardrails Calculator shows you exactly when to adjust your spending using this strategy.

Other Flexible Strategies Morningstar Tested

Morningstar's 2025 research evaluated multiple withdrawal approaches. Here's how they compare:

Which Strategy is Right for You?

Choose Fixed 3.9% if:

• You have fixed expenses (mortgage, healthcare) that can't be reduced
• You prioritize spending predictability over maximizing income
• You have other income sources (Social Security, pension) covering essentials

Choose Guardrails 5.2% if:

• Most of your spending is discretionary (travel, hobbies)
• You're comfortable reducing spending 10% in bad market years
• You want to maximize initial retirement income
• You're early in retirement with flexibility to work part-time if needed

Choose TIPS Ladder 4.5% if:

• You want zero market risk and complete spending certainty
• You're willing to accept lower returns in exchange for guarantees
• You have a large enough portfolio that 4.5% meets your needs

What About Social Security?

Morningstar's research assumes portfolio withdrawals only. If you have Social Security income, you can withdraw more from your portfolio.

Here's why: Social Security provides an inflation-adjusted income floor. This means:

• Your essential expenses are partially covered by guaranteed income
• Portfolio withdrawals fund discretionary spending (inherently more flexible)
• You can take more risk with portfolio withdrawals since you have a safety net

Use our Social Security Optimizer to determine your optimal claiming age, then our Tax-Smart Withdrawal Planner to coordinate portfolio withdrawals with Social Security income.

How to Implement the 3.9% Strategy

If you're planning to retire in 2025-2026, here's how to apply Morningstar's research:

Step 1: Calculate Your Initial Withdrawal

Take your total portfolio value and multiply by 3.9%:

• $500,000 portfolio → $19,500/year ($1,625/month)
• $1,000,000 portfolio → $39,000/year ($3,250/month)
• $1,500,000 portfolio → $58,500/year ($4,875/month)

Step 2: Set Your Asset Allocation

Morningstar's optimal allocation for the 3.9% rate:

• 30-50% stocks (total US stock market index or S&P 500)
• 50-70% bonds (intermediate-term bonds, TIPS, or bond index funds)
• Rebalance annually to maintain targets

Step 3: Adjust for Inflation Annually

Each year, increase your withdrawal amount by the inflation rate (CPI):

• Year 1: $39,000
• Year 2: $39,780 (assuming 2% inflation)
• Year 3: $40,576 (assuming 2% inflation)

Step 4: Monitor and Rebalance

Once per year:

1. Take your inflation-adjusted withdrawal
2. Check your asset allocation
3. Rebalance if you're more than 5% off target
4. Reassess if major life changes occur

Important Considerations and Limitations

The 3.9% Rule Assumes:

• 30-year retirement: If you retire at 55, you need a lower rate. If you retire at 70, you might support a higher rate.
• 90% success rate: This means a 10% chance of running out of money. Some retirees prefer 95% or higher.
• No other income: Pensions, rental income, or part-time work reduce the burden on your portfolio.
• No legacy goals: If you want to leave money to heirs, you need a lower withdrawal rate.
• No major healthcare shocks: Long-term care costs can require significant spending adjustments.

When to Use a Lower Rate

Consider withdrawing less than 3.9% if:

• You're retiring before age 55 (40+ year retirement horizon)
• You want a 95%+ success probability
• You plan to leave a substantial estate
• You have high fixed expenses with little flexibility
• You're concerned about future healthcare costs

When You Can Use a Higher Rate

You might safely withdraw more than 3.9% if:

• You have Social Security or pension income covering basics
• You're willing to reduce spending in down markets (guardrails approach)
• You retire after age 65 (shorter retirement horizon)
• You have home equity you can tap as a backup plan
• You're open to part-time work or other income sources

Comparing 2025 to the Original 4% Rule

Let's put the 3.9% finding in context by comparing it to the original Trinity Study:

Bottom line: The 4% rule worked historically because bonds yielded 6-8% and provided a reliable income floor. With bonds now yielding 4-5%, the math changes.

The Case for Flexibility: Guardrails in Action

The most important finding from Morningstar's research isn't the 3.9% number—it's that flexibility dramatically improves retirement outcomes.

Consider two retirees, both with $1 million portfolios:

For most retirees, this is an excellent tradeoff. You get more money when you're most likely to use it, and you only cut spending in scenarios where your portfolio is already struggling.

Learn how to implement this strategy with our Dynamic Withdrawal Guardrails tool.

How Longevity Affects Your Safe Withdrawal Rate

Morningstar's 3.9% rate assumes a 30-year retirement. But what if you live longer? Or shorter?

Our Longevity-Adjusted Withdrawal Calculator helps you model different life expectancy scenarios.

Tax Implications of Different Withdrawal Rates

Withdrawing 3.9% vs 5.2% doesn't just affect portfolio longevity—it affects your tax bill.

Higher withdrawals mean:

• More taxable income (if withdrawing from traditional 401k/IRA)
• Potential impact on Social Security taxation
• Possible Medicare IRMAA surcharges (if income exceeds thresholds)
• More opportunity for Roth conversions (if you have flexibility to reduce taxable withdrawals)

Use our Tax-Smart Withdrawal Planner to optimize which accounts to withdraw from and when.

What to Do If You're Already Retired

If you retired in previous years using the 4% rule (or any other rate), should you adjust?

Morningstar's advice: It depends on your current withdrawal rate as a percentage of your portfolio.

Action Steps: Implementing Morningstar's 2025 Findings

Here's how to apply this research to your retirement plan:

If You're Planning to Retire in 2025-2026:

1. Calculate your annual spending needs (total expenses minus Social Security and other income)
2. Divide by 0.039 to find your minimum portfolio target
   Example: $50,000 needs ÷ 0.039 = $1,282,051 portfolio
3. Consider the guardrails approach if you have spending flexibility
   Example: $50,000 needs ÷ 0.052 = $961,538 portfolio (25% less needed!)
4. Set your asset allocation to 30-50% stocks, 50-70% bonds
5. Plan your withdrawal strategy using our calculators

If You're Already Retired:

1. Calculate your current withdrawal rate (this year's withdrawal ÷ current portfolio)
2. Compare to 3.9% (or 5.2% if using guardrails)
3. If above 5.0%: Consider spending reductions or income sources
4. If below 3.5%: You may be under-spending; consider lifestyle upgrades
5. Review annually and adjust as needed

The Bottom Line

The 4% rule served retirement planning well for decades, but it was never meant to be a universal constant. Market conditions change, and so should withdrawal strategies.

Morningstar's 2025 research teaches us three key lessons:

1. Fixed withdrawal rates should reflect current market conditions: 3.9% is appropriate for 2025 retirees, but this will change as bond yields and stock valuations evolve.
2. Flexibility unlocks higher safe withdrawal rates: Guardrails strategies can support 5.2% starting rates—33% more initial income—with the same success probability.
3. There's no one-size-fits-all approach: Your optimal withdrawal strategy depends on your spending flexibility, income sources, time horizon, and risk tolerance.

The goal isn't to withdraw the least amount possible and die with the most money—it's to maximize your standard of living throughout retirement without running out. For some retirees, that means the conservative 3.9% approach. For others with flexibility, 5.2% provides a much better quality of life with minimal additional risk.

Use the research as a starting point, then customize based on your unique situation. And remember: this isn't a set-it-and-forget-it decision. Review your withdrawal rate annually and adjust as your circumstances and market conditions change.

Further Reading

• The Trinity Study Explained: The Original 4% Rule Research
• Sequence of Returns Risk: Why When You Retire Matters
• The Psychology of De-Accumulation: Learning to Spend in Retirement
• Recommended Books: "How to Retire" by Christine Benz