Once you hit 60, the financial margin for error is a lot smaller. You've got fewer years for compound growth to work in your favor and less time to rebuild depleted savings. Plus, you've got a set of major financial decisions ahead that are difficult or impossible to reverse.
If you do make a mistake, then you don't have as long to recover. A money mistake at 35 is a setback with plenty of time left for recovery. That same mistake at 62 tends to become a permanent condition. The mistakes that cause the most lasting damage for those over 60 are the ones that change the underlying structure of your retirement.
These are the financial errors most likely to do exactly that, and most of them are entirely preventable if you recognize them early enough.
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Claiming Social Security before you need to
One of the biggest mistakes people make with Social Security is claiming earlier than they need to. Remember that the earlier you claim, the less you receive each month, for life. Claiming at 62 instead of waiting until full retirement age locks in a 30% reduction in monthly benefits. Every year you delay past your full retirement age up to age 70, that benefit grows by 8%.
By the time you get to age 70, you would receive 124% more per month than you would have received if you claimed at 62. Over 25 years of retirement, the gap between claiming early and waiting adds up to tens of thousands of dollars, so it's a very costly mistake.
Carrying credit card debt into retirement
In the last quarter of 2025, Federal Reserve data showed that the average credit card interest rate was 20.97%. The typical retirement portfolio earns 7.8% annually.
Therefore, carrying a balance of credit card debt while also investing is a mathematical net loss. On a fixed income, there is no practical way to close that gap, and you'll struggle to pay off the debt if you only make minimum payments.
Eliminating high-interest debt before you stop working is one of the most impactful financial moves you can make. If you do have to carry some credit card debt into retirement, the smartest move is to pay it off as soon as possible to minimize interest charges.
Retiring before Medicare coverage begins
Medicare eligibility starts at 65 years of age, and there are no early exceptions for pre- or early retirees. ACA marketplace premiums for a 62-year-old typically cost $1,000 to $1,800 a month without a subsidy. A serious illness or hospitalization without adequate coverage during the three years before you turn 65, in this situation, can erase years of retirement savings rapidly.
Many people underestimate how much health care can cost before Medicare kicks in. Retiring early without solid health coverage is a significant financial risk that can follow you for the rest of your retirement.
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Triggering IRMAA surcharges with a poorly timed withdrawal
Many retirees get blindsided by income-related monthly adjustment amount (IRMAA) surcharges when they get their first Medicare bill. The IRMAA adds surcharges to Part D and Part B premiums when income exceeds certain thresholds. Why it catches so many people off guard is that Medicare uses income from two years ago when setting those surcharges.
A large 401(k) withdrawal, Roth conversion, or home sale in a single year, two years prior, can spike your income enough to raise your Medicare premiums for the following two years running.
Cashing out a 401(k) before age 59½
Withdrawing from your 401(k) before age 59.5 triggers a 10% penalty on top of your ordinary income taxes. This combination can take 30% to 40% of whatever you take out.
Someone who withdraws $50,000 because they hit a rough patch may end up netting as little as $35,000, and they'll permanently lose all future compounding of the full amount. If you do this at 57 or 58, there is no realistic way for most people to replace what compounding would have produced over the next decade.
Co-signing a loan for an adult child or grandchild
Most people who cosign a loan for a family member expect, perhaps naively, never to hear about it again. A cosigner carries the same legal liability as the primary borrower. This means a default lands directly on you unless you cover the payment.
Paying off someone else's debt from retirement savings at 63 or 65 is a very quick way to lose significant money that you will struggle to recover. But defaulting on that loan can also have real consequences, like wrecking your credit score.
Buying a timeshare or an illiquid investment
Time shares may seem like a good idea at the time, but they rarely appreciate in value, and exit fees typically cost anywhere from $3,000 to $10,000, assuming you can find a way out at all. Many owners cannot.
Meanwhile, annual maintenance fees must be paid whether you use the property or not. If you are on a fixed retirement income, a recurring obligation tied to an asset that you cannot sell and that will not appreciate in value is wasted money that you will not benefit from.
Bottom line
Most of these mistakes are far easier to avoid than to undo. By the time you realize you've made one, it's often too late to undo it if you're already over 60. These mistakes are avoidable with planning.
The right time to address them is in your late 50s, before Social Security claiming decisions are finalized, before a health coverage gap becomes a crisis, and before a poorly timed withdrawal adds two years of higher Medicare premiums to your budget. This is the point in your life where making smart money moves matters the most.
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