For many people, the biggest retirement concern is not market volatility or tax rates. It comes down to a more personal question: Will my money last as long as I do?
As a retirement planner, this question comes up in nearly every conversation I have with pre-retirees and retirees. Longevity, spending patterns, taxes, and timing decisions are all connected, and it can be hard to evaluate any one of them without stepping back to see how they work together.
Below is a practical look at the questions people most often ask when they start worrying about running out of money in retirement, and how a thoughtful retirement planning process can help clarify where risks may lie.
What does it mean to “run out of money” in retirement? 
Running out of money in retirement usually means your income sources and savings no longer cover your ongoing expenses, forcing you to rely more heavily on withdrawals, debt, or support from others. In practice, this risk rarely appears overnight. It often develops gradually as spending outpaces expectations, taxes take a larger share than anticipated, or withdrawals begin earlier or at higher levels than originally planned. 
Retirement planning is less about predicting a single outcome and more about understanding how long your resources could support your lifestyle under different conditions.   
This is where the services of a specialized retirement planner in Northbrook can help you evaluate these conditions before they become stressful decisions.
Why do people underestimate how long their retirement may last? 
Many people plan for retirement as a fixed time period, rather than an open-ended phase that could last 25 to 35 years or longer. Instead, many people focus on a retirement age without fully accounting for longevity.  Medical advances and healthier lifestyles mean many people spend decades in retirement. The challenge is that longer retirements increase exposure to rising costs, market cycles, and tax changes. 
A helpful analogy is packing for a trip without knowing how long you will be gone. If you plan for a weekend but end up staying for a month, even good preparation can fall short. Your retirement plan should adjust its assumptions to reflect realistic time horizons.
How does spending change once you retire? 
Spending doesn’t usually decline evenly in retirement, but it can shift and become less predictable over time. Many people also underestimate discretionary spending when time becomes more available. You may see some expenses decrease, such as commuting or payroll deductions. Others increase or appear later, including healthcare, travel, family support, or home-related costs.  
Rather than using a single retirement budget, you should work with a retirement planner to review expenses in phases, as your early retirement may look different from later years.  
Regularly reviewing your spending patterns can also help avoid assumptions that no longer reflect reality.
How can taxes increase the risk of running out of money? 
Taxes affect how much of your savings you actually keep, especially when withdrawals are not coordinated across accounts. Withdrawals from tax-deferred accounts, taxable accounts, and Roth accounts are treated differently.  
Social Security benefits may also become taxable depending on income levels. Without planning, taxes can quietly reduce cash flow more than expected. Tax planning shouldn’t be limited to filing returns during tax season. It should include things such as:


Evaluating when and where income is taken


How withdrawals are sequenced


How required distributions may affect future years


This is where the services of a fiduciary financial advisor who integrates tax planning into retirement planning can help identify areas where timing decisions matter.
Why does withdrawal timing matter so much once retired? 
The order and timing of withdrawals can influence how long your portfolio supports your spending. Withdrawing too much early in retirement can reduce flexibility later, especially during market downturns.  This concept is often described as sequence risk, where early negative returns combined with withdrawals reduce long-term sustainability. 
Think of your portfolio like a reservoir. Drawing too much water during a dry season limits what is available later.
As a Northbrook retirement planner, I can assist you in structuring a withdrawal strategy that aligns your income needs with portfolio behavior and tax considerations.
How do required minimum distributions affect retirement income? 
Required minimum distributions (RMDs) require mandatory taxable withdrawals that can affect cash flow and tax brackets later in retirement.  Once RMDs begin, you no longer control whether distributions occur; the IRS sets the minimum amount. These distributions can increase taxable income even if you do not need the cash for living expenses. 
Planning ahead may include reviewing account balances, future tax exposure, and how RMDs fit into your broader retirement income plan. This is a common discussion point in retirement planning, especially if you have significant tax-deferred savings.
Can market volatility increase the risk of running out of money?
Market volatility matters most when it coincides with withdrawals, particularly in the early years of retirement. Even diversified portfolios experience fluctuations. The concern isn’t volatility itself but how it interacts with your spending needs. Selling assets during market downturns to meet income needs can reduce future growth potential.  You should review how different asset allocations and income sources interact, rather than focusing solely on performance. 
The goal is coordination, not prediction.
Why does retirement planning require ongoing updates? 
Retirement planning is not a one-time decision; assumptions change as laws, markets, and personal circumstances evolve. Tax laws change, spending priorities shift, and family needs develop over time. A plan created years ago may rely on assumptions that no longer apply.
How does working with a retirement planner help identify risks? 
A retirement planner helps connect income sources, investments, taxes, and spending into a coordinated framework. Many people view retirement decisions in isolation, such as choosing when to claim Social Security or how to invest a rollover.  Retirement planning brings these decisions together, making trade-offs clearer.  
At Fisher Financial Group, LLC, retirement planning conversations often focus on understanding how each decision affects the others, rather than chasing isolated solutions. This approach helps clarify where risks may exist and where flexibility remains.
When should you review whether you are at risk of running out of money? 
You should review this risk whenever a major life or financial change occurs, and at regular intervals, even when nothing appears to have changed. Common triggers include retirement, changes in spending, inheritance events, market shifts, or tax law updates. Waiting until uncertainty becomes urgent limits available options.
A proactive review does not assume a problem exists; it simply evaluates whether current assumptions still make sense. That clarity can be valuable long before any decisions are required.
Final thoughts on retirement planning 
Worrying about running out of money in retirement is not a sign that you have done something wrong. It is a signal that the questions you are asking deserve structured answers. Retirement planning brings those questions into focus by examining spending, income, taxes, and timing together. Working with a financial advisor and retirement planner who understands how these elements interact can help you better understand where risks may exist and what choices you have.  
Fisher Financial Group, LLC works with individuals and families in the Northbrook area who want thoughtful, coordinated retirement planning that reflects real-world complexity rather than simple assumptions. If this question has been on your mind, it may be time to revisit the structure behind your plan and evaluate whether it still fits the retirement you are building. 

Let’s connect to discuss your retirement planning needs. 
          

About the author

Dan Fisher is a Registered Financial Consultant (RFC) and Federal Retirement Consultant (FRC) who has spent more than three decades guiding retirees and pre-retirees through tax-smart investing and income planning. As the founder of Fisher Financial Group, he brings a practical approach to helping clients make informed choices about their retirement.