Here’s some of what we cover in this episode:
🧪 Stress tests expose weaknesses in your retirement plan.
📉 Bad scenarios aren’t predictions—they’re possibilities.
🎛️ Focus on the financial levers you can control.
⚖️ A safer plan can still require meaningful trade-offs.
🎯 The goal isn’t eliminating every retirement risk.
Executive Summary
A retirement plan can show a strong probability of meeting long-term goals and still contain meaningful risks.
That does not necessarily mean retirement needs to be delayed or spending needs to be cut. It means the plan should be tested against circumstances that may be less favorable than the assumptions used in the base case.
Retirement stress testing can help identify how significantly events such as a major market decline, higher inflation, unexpected healthcare expenses, long-term care costs, or a longer-than-expected life could affect the plan.
The goal is not to make every stress test produce a perfect result. It is to understand which risks could materially affect retirement, determine which risks can be controlled or reduced, and decide which risks may be reasonable to accept.
What Does a “Workable” Retirement Plan Actually Mean?
Retirement planning often starts with a base plan.
That plan considers factors such as:
- Retirement savings and investments
- Social Security and pension income
- Expected retirement spending
- Inflation assumptions
- Investment return assumptions
- Life expectancy
- Legacy goals
- Other financial objectives
One common way to evaluate that plan is through a Monte Carlo analysis.
A Monte Carlo analysis runs hundreds or thousands of hypothetical long-term scenarios using varying investment returns and other assumptions. Some scenarios may include strong market environments, some may include poor returns, and others may include a mix of favorable and unfavorable years.
The analysis then measures how often the retirement goals entered into the plan were successfully met.
For example, an 85% probability of success generally means that the stated goals were met in approximately 85% of the modeled scenarios.
That percentage is not a prediction of what will happen. It is a planning measurement based on assumptions that may differ from actual investment returns, inflation, spending, taxes, longevity, and other factors.
A workable retirement plan therefore does not mean the future is certain. It means the plan appears capable of supporting the stated goals across a range of modeled outcomes.
Why Stress Test a Retirement Plan?
Monte Carlo analysis already accounts for a range of market outcomes, but certain risks deserve a closer look.
Stress testing asks a more specific question:
What happens to the retirement plan if a particular unfavorable event occurs?
Common stress tests may examine scenarios involving:
- A significant stock market decline, particularly early in retirement
- Higher-than-expected inflation
- Higher healthcare expenses
- Long-term care costs
- Living several years longer than originally assumed
- Changes to expected income sources
- Circumstances unique to a particular retirement plan
The base plan can then be rerun using the new assumption to show how significantly that event could affect the overall strategy.
Retirement plans can react very differently to the same event.
A market decline might create substantial risk for one plan while having a relatively modest effect on another. Long-term care expenses could be a significant vulnerability in one situation but manageable in another.
That is the primary value of stress testing: identifying which risks could materially affect the specific plan being analyzed.
A Poor Stress-Test Result Does Not Automatically Require a Major Change
A stress test is a hypothetical scenario, not a forecast.
If a particular stress test produces a poor result, the next question is not necessarily whether retirement should be delayed or spending immediately reduced.
The better question is:
If this risk occurred, how significant would the impact be, and what options would be available?
Trying to make every conceivable stress test produce an exceptionally high probability of success could require working longer, spending considerably less, taking less investment risk, or leaving significantly more money untouched than the retirement goals actually require.
The purpose of stress testing is to identify the risks that deserve attention, not to eliminate every possible source of uncertainty.
Focus on What Can Actually Be Controlled
Many retirement risks cannot be controlled.
Future market returns cannot be controlled. Neither can future inflation, tax law, Social Security policy, or how long retirement ultimately lasts.
Other variables provide more flexibility.
Before retirement, those may include:
- Retirement date
- Savings rate
- Planned spending
- Investment risk
- Legacy goals
After retirement begins, fewer levers remain available, but decisions around spending, portfolio risk, gifting, and legacy goals can still affect the plan.
Understanding those trade-offs in advance can make it easier to respond if circumstances change.
Break Retirement Spending Into Needs, Wants, and Wishes
One useful way to evaluate retirement flexibility is to separate spending into three categories.
Needs
Needs are the recurring expenses required to maintain the basic retirement lifestyle.
Examples may include:
- Housing
- Utilities
- Groceries
- Insurance
- Healthcare
- Transportation
- Other essential expenses
There may be relatively little flexibility in this category.
Wants
Wants are expenses that contribute significantly to the retirement lifestyle but could potentially be adjusted.
Examples may include:
- Travel
- Dining out
- Home improvements
- Entertainment
- Hobbies
Reducing these expenses may improve the financial plan, but it can also meaningfully change the retirement originally envisioned.
Wishes
Wishes are goals with greater flexibility.
Examples may include:
- Additional gifts to children
- Charitable contributions
- A larger inheritance
- Other discretionary legacy goals
This framework can make stress-test results more actionable.
Instead of assuming that all retirement spending needs to be reduced after an unfavorable scenario, the analysis can identify which goals have the most flexibility and what effect adjusting them may have.
Retirement Planning Is About Trade-Offs
If a stress test reveals a meaningful vulnerability, possible responses could include:
- Working longer
- Saving more before retirement
- Reducing planned spending
- Adjusting discretionary goals
- Reconsidering investment risk
- Evaluating whether certain risks can be insured
- Accepting the risk and monitoring it over time
No single response is appropriate in every situation.
Long-term care risk, for example, may lead to a discussion about available insurance solutions and whether transferring some of that risk makes sense.
A market-related stress test may lead to a review of the portfolio and the amount of investment risk being taken. A market decline does not automatically mean investment risk should be reduced. Changes to an investment allocation should be evaluated in the context of the overall financial plan, time horizon, liquidity needs, risk tolerance, and current market conditions.
Periods of lower asset prices are generally associated with higher expected future returns, but higher future returns are not guaranteed.
The value of the stress test is that these decisions can be evaluated as part of a broader retirement strategy rather than made reactively during a difficult period.
What If the Retirement Plan Looks Extremely Strong?
Stress testing can also be useful when a plan appears to have more than enough resources to support its stated goals.
A very high modeled probability of success can create a different question:
Is the retirement plan more conservative than the goals require?
If spending remains well below what the plan can potentially support, one possible result is a larger remaining estate.
That may be intentional.
But if leaving a larger estate is not the primary goal, it may be worth evaluating whether financial resources could instead be directed toward other priorities during retirement.
Those priorities could include travel, family experiences, charitable giving, gifting, reducing investment risk, or other personal goals.
The objective is not simply to maximize a probability-of-success number. It is to align financial resources with the purpose behind the retirement plan.
Which Retirement Risks Actually Need Action?
Stress-test results can generally lead to three different responses.
Some risks may be significant enough to address before retirement.
Others may warrant a defined strategy for how they would be handled if circumstances change.
Still others may represent reasonable risks to accept.
The important distinction is between understanding a risk and deliberately accepting it versus never identifying the risk in the first place.
A retirement plan should therefore help answer more than whether retirement appears workable today. It should also help identify which events could materially disrupt the plan and what options would be available if they occurred.
The Takeaway
A workable retirement plan does not mean every unfavorable scenario will produce a good result.
Likewise, a poor stress test does not automatically mean retirement is no longer viable.
Stress testing is designed to identify vulnerabilities, clarify the trade-offs available, and help determine which risks deserve action and which may be reasonable to accept.
Retirement planning cannot eliminate uncertainty. It can, however, create a framework for making more informed decisions when uncertainty matters.
Authors:
Ryan Wyatt, CFP®, CIMA®
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