Common Money Myths That Trip Up Retirees
From "Medicare covers everything" to "you should always pay off your mortgage first," these widespread beliefs deserve a closer look.

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Key Takeaways
- Medicare does not cover most long-term care costs, which can be a major retirement expense.
- Paying off a mortgage early is not always the financially optimal move for retirees.
- Social Security benefits are not always tax-free; up to 85% may be taxable depending on income.
- A conservative all-cash portfolio does not protect against inflation's erosion of purchasing power.
- Retirees still need growth in their portfolios to address longevity risk over decades.
Why retirement money myths persist
Retirement financial planning is full of rules of thumb that spread because they contain a grain of truth or because they once applied in different economic conditions. Some were reasonable guidelines for a workforce that retired at 65 and lived to 72. Today, retirements routinely stretch two to three decades, and the financial landscape, including tax rules, healthcare costs, and interest rates, has shifted considerably.
The five myths below are among the most common beliefs that can quietly undercut a retiree's financial stability. Getting these wrong does not mean disaster, but correcting them early creates more room to plan with accuracy.
Myth
Medicare covers all my healthcare costs in retirement, so I do not need to budget much for medical expenses.
Fact
Medicare covers many medical services but excludes most dental, vision, hearing, and long-term care costs. Out-of-pocket expenses remain significant for most retirees.
Medicare Part A and Part B cover hospital stays, doctor visits, and some preventive care, but they leave substantial gaps. Routine dental work, eyeglasses, hearing aids, and custodial long-term care (such as an assisted living facility or in-home aide for daily activities) are generally not covered. Prescription drug costs require a separate Part D plan, and premiums, deductibles, and copays under original Medicare can add up quickly.
Fidelity's annual estimate has consistently placed average healthcare spending for a retired couple in the hundreds of thousands of dollars over a 20-to-25-year retirement, even with Medicare in place. Planning for these out-of-pocket costs is one of the most overlooked parts of retirement budgeting. See how to rethink your retirement budget for a practical framework.
Myth
I should pay off my mortgage as fast as possible before I retire.
Fact
Paying off a mortgage early can make sense for some people, but it is not universally the right move. The decision depends on your interest rate, tax situation, liquidity needs, and other financial priorities.
Holding mortgage debt feels uncomfortable, which is why early payoff is a common goal. But if your mortgage carries a relatively low interest rate, redirecting extra cash toward it means that money is not available for other purposes: an emergency fund, tax-advantaged retirement contributions, or investment accounts. Locking equity into a home also reduces liquidity, and accessing that equity later through a home equity loan or reverse mortgage carries its own costs and risks.
The right answer varies by individual. A licensed financial planner can help you weigh carrying costs against opportunity costs given your specific income, tax bracket, and timeline. This article is general information, not personalized financial advice.
Myth
Social Security income is not taxable, so I do not need to account for it in my tax planning.
Fact
Depending on your combined income, up to 85% of your Social Security benefits may be subject to federal income tax.
The IRS uses a figure called 'combined income,' which adds your adjusted gross income, any nontaxable interest, and half of your Social Security benefits. If that total exceeds certain thresholds (currently $25,000 for single filers and $32,000 for married filing jointly), a portion of benefits becomes taxable. At higher income levels, up to 85% of benefits may be included in taxable income.
This is especially relevant for retirees drawing from taxable accounts, taking required minimum distributions from traditional IRAs, or receiving pension income alongside Social Security. Tax planning around withdrawal sequencing can matter here. Sequencing your income sources in the right order may reduce your overall tax burden over time.
Myth
Once I retire, I should move everything into safe, conservative investments like cash or CDs to protect my savings.
Fact
An all-cash or very low-return portfolio exposes retirees to inflation risk, which can erode purchasing power steadily over a retirement that may last 20 to 30 years.
Keeping all assets in cash or equivalents feels safe, but inflation steadily reduces what that money buys. At a 3% annual inflation rate, $50,000 in purchasing power today drops to roughly $27,700 in 20 years. Retirees who live into their 80s or 90s need their portfolios to maintain some growth to keep pace.
This does not mean taking on excessive risk. It means holding an asset mix that reflects both your time horizon and your spending needs. Most financial planning literature suggests retirees still benefit from some equity exposure, calibrated to their income sources and risk tolerance. How inflation erodes retirement income covers this concept in more depth. Past performance does not guarantee future results, and all investing involves risk. Consult a licensed financial adviser before making allocation decisions.
Myth
If I run low on money, I can simply delay withdrawals or spend less. Running out of savings is not a real risk.
Fact
Longevity risk, the chance of outliving your assets, is one of the most significant financial risks retirees face, and it is commonly underestimated.
People routinely underestimate how long they will live. A 65-year-old today has a meaningful probability of living into their late 80s or beyond, according to actuarial data from the Social Security Administration. A retirement that lasts 25 to 30 years puts real strain on even well-funded portfolios, particularly when combined with healthcare costs, inflation, and market downturns early in retirement.
Spending flexibility helps, but it has limits. Cutting discretionary costs is possible; cutting essential costs like housing, food, and healthcare is much harder. Why retirees outlive their savings examines this risk in practical terms and explains why planning for a longer-than-expected retirement is worth the effort.
What to do with this information
Do not confuse Medicare with long-term care coverage
Medicare generally does not cover custodial care, meaning help with daily activities such as bathing, dressing, or eating in a nursing home or at home. This type of care can cost tens of thousands of dollars annually. If long-term care is a concern, speak with a licensed insurance professional or financial planner about options available to you.
Recognizing a myth is only part of the work. The next step is checking whether any of these beliefs have shaped decisions you have already made, such as how your savings are allocated, whether you have accounted for taxes on Social Security, or how you have budgeted for healthcare. If so, those decisions are worth revisiting with a licensed financial professional who can assess your full picture.
Retirement finances do not reward assumptions. Accurate information, verified against your actual tax situation, income sources, and time horizon, is the foundation for decisions you can rely on.
Up to 85%
Social Security income potentially subject to federal tax
Per IRS rules, the taxable portion depends on combined income thresholds for single and married filers.
$165,000+
Estimated individual retiree healthcare costs with Medicare
Fidelity's annual Retiree Health Care Cost Estimate has placed average costs for a 65-year-old in this range over retirement.
~50%
Probability a 65-year-old woman lives to age 88
Based on Social Security Administration period life tables, longevity planning needs to extend well beyond average life expectancy.
This article is for general informational purposes only and does not constitute financial, tax, legal, or investment advice. Consult a qualified licensed professional before making decisions about your retirement finances.
