RETIREMENT INCOME Smart retirement withdrawal strategies to enhance portfolio sustainability

Kate Beattie

September 17, 2026

KEY TAKEAWAYS

  • Flexible withdrawal methods can help enhance portfolio sustainability.
  • Preserving an account balance is crucial to support ongoing retirement income needs.
  • Retirees should work with financial professionals to create a personalized retirement income strategy.

Determining withdrawal rates is a good starting point for retirement income planning, but clients could benefit from remaining flexible to adapt to changing circumstances. With retirement potentially spanning decades, retirees might consider alternative strategies based on their priorities, such as maximizing withdrawals, pursuing lifetime income, maintaining stable cash flow or leaving a legacy.

Fixed-dollar withdrawals: Potential pitfalls

A fixed-dollar withdrawal involves regularly withdrawing a set amount from investments — often adjusted for inflation — regardless of market conditions. But some potential risks to this strategy include varying account balances, income shortfalls and principal erosion due to market volatility and inflation.

 

The chart below depicts a hypothetical example of a 68-year-old retiree with a $1 million retirement portfolio aiming for $60,000 annual income in the first year. He withdraws $40,000 (representing a 4% withdrawal rate) from his portfolio starting in 2001 and receives $20,000 from Social Security per year, continuing until June 2026. If the market drops, and the portfolio’s value declines to $850,000, continuing to withdraw the same dollar amount would increase the effective withdrawal rate to 4.8%, stressing the portfolio. Over 26 years1, the account balance would diminish rapidly due to larger cumulative withdrawals and market volatility, resulting in higher reliance on the portfolio for income.

A fixed withdrawal rate may increase the risk of portfolio depletion

The chart shows how fixed withdrawals affect an account balance over time. A bar and line chart showing annual income versus annual fixed withdrawal amount (accounting for inflation) and ending balance from June 2001 to June 2026. The left y-axis measures annual income (annual fixed withdrawal amount) in dollars, ranging from $0 to $100,000. The right y-axis measures the ending fixed withdrawal balance in dollars, ranging from $0 to $1,200,000. Each year is represented by a blue bar indicating the withdrawal amount and a magenta line showing the ending balance after withdrawals. The balance starts at $1,000,000 in June 2001 and decreases over time reaching an ending balance of $253,508 by June 2026. The cumulative withdrawal amount is $1,542,122.

¹June 2001–June 2026
Source: S&P Dow Jones Indices LLC, Bloomberg Index Services Limited. We assumed a hypothetical $1,000,000 portfolio invested in 60% equities (represented by the S&P 500 Index) and 40% fixed income (represented by the Bloomberg U.S. Aggregate Bond Index) with a fixed withdrawal rate of 4% starting in the first year of retirement and continuing until June 2026. Withdrawals are increased by 3% each year after the first year to adjust for inflation, plus 1% portfolio fees. Cumulative withdrawal amount does not account for taxes. Hypothetical results are for illustrative purposes only and in no way represent the actual results of a specific investment.

Pros and cons of a fixed-dollar withdrawal strategy

Pros:

  • May provide regular income, which many retirees find reassuring.
  • May be appropriate for investors with a shorter time horizon and no specific legacy goals.

 

Cons:

  • Does not adjust withdrawals based on market performance, increasing sequence-of-returns risk (e.g., the risk of market declines in the early years of retirement).
  • Higher risk of depleting funds or encountering unexpected financial challenges over time.
  • During bull markets, fixed withdrawals may limit the income clients could use at the time of each withdrawal.

Variable withdrawals: Adapting to market changes

While fixed-dollar withdrawals may offer regular income, some retirees may benefit from a more flexible approach.

 

A variable withdrawal strategy adjusts the withdrawal amount based on a percentage of the remaining account balance — tying the retiree’s income to portfolio performance. With this approach, the retiree would take lower withdrawals during weak markets and higher withdrawals during strong markets, potentially helping to avoid overspending during downturns and benefit from upswings.

 

Though spending levels will fluctuate with market returns and portfolio growth, a variable approach would have resulted in a higher ending balance than the fixed-dollar withdrawal strategy in our hypothetical illustrations. For example, at the end of 26 years, a variable strategy would result in an ending balance of $1,202,074, with cumulative withdrawals of $1,135,765 — compared with a fixed withdrawal ending balance of $253,508, with cumulative withdrawals of $1,542,142.   

Flexible withdrawals may boost portfolio longevity

The chart shows how variable withdrawals affect an account balance over time. A bar and line chart showing annual income versus annual variable withdrawal amount and ending balance from June 2001 to June 2026. The left y-axis measures annual income (annual variable withdrawal amount) in dollars, ranging from $0 to $100,000. The right y-axis measures the ending variable withdrawal balance in dollars, ranging from $0 to $1,400,000. Each year is represented by a blue bar indicating the withdrawal amount and a magenta line showing the ending balance after withdrawals. The balance starts at $1,000,000 in June 2001 and fluctuates, reaching an ending balance of $1,202,074 by June 2026. The cumulative withdrawal amount is $1,135,765.

Source: S&P Dow Jones Indices LLC, Bloomberg Index Services Limited. We assumed a hypothetical $1,000,000 portfolio invested in 60% equities (represented by the S&P 500 Index) and 40% fixed income (represented by the Bloomberg U.S. Aggregate Bond Index) with an initial withdrawal rate of 5% starting in the first year of retirement. Thereafter, the withdrawal amount adjusts based on a percentage of the remaining account balance, plus 1% portfolio fees, continuing until June 2026. Cumulative withdrawal amount does not account for taxes. Hypothetical results are for illustrative purposes only and in no way represent the actual results of a specific investment.

Pros and cons of a variable withdrawal strategy

Pros:

  • May be appropriate for clients who can manage flexible cash flow and/or have legacy goals.
  • Enhances the likelihood of achieving longevity and preservation objectives.
     

Cons:

  • Varying withdrawals may add complexity in adjusting spending amounts.
  • In adverse market conditions, withdrawals might become too low, potentially requiring lifestyle adjustments.

Finding a balance, weighing tradeoffs

While fixed and variable withdrawal strategies represent two different approaches, many retirees aim for a balance. Diverse cash-flow needs and goals make it crucial to achieve a stable mix of income sources for reliable retirement income.

 

Given the potential income and emotional effects of relying heavily on an investment portfolio, protected lifetime income can play a vital role. Building a foundation with Social Security, pension benefits, and/or annuity income helps mitigate challenges like market volatility and longevity. This foundation can help cover essential living expenses.

 

Our analysis shows that a strategy of taking variable withdrawals from investment assets, coupled with a fixed-dollar amount from a protected income stream like an annuity, may better meet retirees’ planning objectives.

What about Social Security?

The Social Security Administration estimates Social Security benefits represent about 31% of the income of people over age 65, making it a crucial source of protected income during retirement. Nearly nine out of 10 individuals age 65 and older receive Social Security benefits, and as of December 31, 2025, retired workers received an average monthly benefit of $2,071. Decisions on when to claim Social Security can significantly impact retirement income strategies and portfolio reliance.


Source: Social Security Administration Fact Sheet, December 31, 2025.

How financial professionals can help

Use these actionable tips to assist clients in developing and maintaining effective retirement withdrawal strategies:
 

  1. Consider a flexible withdrawal strategy where applicable: A flexible withdrawal strategy adapts to market conditions and clients’ changing retirement needs. Starting with a modest withdrawal rate, such as 4%, may help mitigate investment volatility risks. The operational aspect of withdrawals will be crucial in deciding on a suitable approach.

  2. Review and adjust regularly: Stress the importance of annual reviews of the withdrawal strategy with clients. Highlight the need to proactively adjust the plan based on portfolio performance and evolving financial goals.

  3. Emphasize long-term portfolio sustainability: Consider the client’s life expectancy and educate them on maintaining a balanced portfolio that includes growth investments where appropriate. Ensure they understand that sustainable long-term growth may be key to meeting future financial needs during retirement.

Read important disclosures

Kate Beattie is a senior retirement income strategist with 19 years of experience in the industry as of December 31, 2025. She holds a bachelor’s degree in economics with a business administration minor from Colorado State University. She also holds the Certified Financial Planner™ and Retirement Income Certified Professional® designations.

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