6 Surprises Nobody Warns You About in Your First Year of Retirement

It's one thing to create a retirement plan, and it's another thing to live it. Even readers who save diligently, pick a retirement date, and think through their finances may end up with some surprises. That's OK, and it's to be expected, but it's also helpful to plan for the most likely departures from your well-laid plans.

These six gotchas don't happen to every retiree and may only be visible once work stops for good. It's still a good idea to get familiar so you aren't caught off guard and can manage the transition without unnecessary stress.

Your Medicare bill remembers your old salary

The Income-Related Monthly Adjustment Amount (IRMAA) can raise Part B and Part D premiums based on tax information from two years back. So, if you retire in 2026, your 2024 income will act as the baseline.

This means that stopping work doesn't automatically make Medicare price coverage using the smaller income you're seeing in retirement. However, if your new income is truly lower, you could qualify for a new determination that's more in line with current circumstances.

A withdrawal can make Social Security taxable

Taxable traditional retirement-account distributions can push more Social Security benefits into taxable income. Here's how it works:

Your combined income is adjusted gross income (AGI) excluding Social Security benefits, plus tax-exempt interest, plus half of your Social Security benefits and half of your spouse's benefits (if filing jointly). If this number goes above $25,000 for singles and $32,000 for joint filers, federal taxation can begin.

Someone who takes out a distribution to pay for a home repair or car may end up with tax consequences beyond the withdrawal itself. Know how each income source will be taxed so you aren't hit with a surprise IRS bill.

Your benefit check may have taxes withheld

Social Security doesn't automatically withhold federal income taxes, even if you'll likely owe them. Moving from a paycheck with routine withholding to several retirement income streams means you'll have to track how each affects your tax bracket and how you'll pay throughout the year.

Retirees can request Social Security withholding at 7%, 10%, 12%, or 22%, but only you can determine which amount is best. Ideally, you should check projected tax totals against total withholding and keep an eye on the net benefit amount that will hit your bank account each month.

The IRS withholding calculator can help if you have income from a job, pension, or annuity with federal income tax withholding.

COBRA doesn't pause your Medicare deadline

If you're eligible for Medicare but choose to continue workplace COBRA coverage instead, you may have to pay much of your medical costs out of pocket. Besides that, you generally have 8 months after you stop working or lose coverage based on current employment, whichever happens first, to sign up for Part B without a penalty. This rule doesn't go away just because you have COBRA.

Missing this window means you have to wait until January 1 to March 31 to sign up, with coverage starting the month after you enroll. You could have a gap in coverage if COBRA doesn't last that long, and you may have to pay a lifetime Part B late enrollment penalty. This penalty is permanent, so you may need to sign up for Medicare as soon as you're eligible.

Side work hours can matter more than earnings

Social Security has a special first-year rule that lets someone collect Social Security after retiring midyear even if their earlier salary already exceeded the annual earnings limit. The catch is that doing enough freelance or business work afterward can prevent SSA from considering them retired for a particular month — even if that work earns very little.

For 2026, the monthly earnings limit under this rule is $2,040 for people below full retirement age throughout the year. Full retirement age is 67 for anyone born in 1960 or later. Self-employment also involves a services test, not merely an earnings figure: If you work more than 45 hours monthly, or 15–45 hours in a highly skilled occupation, SSA considers that substantial work. That means working 50 hours in your business could prevent you from receiving a check under this exception that month, even if you earned only $500.

Spending savings can feel like failure

Retirement means a shift from building a nest egg to finally spending some of it. Many retirees find this change psychologically difficult, and may even feel that they're doing something wrong. It may even be difficult to carry out well-intentioned and well-funded hobbies or travel plans when the reality of a shrinking retirement account sinks in.

Finding the right balance may take time and some outside perspective. If you're unsure about the pace of your spending and its long-term consequences, meeting with a financial planner can help.

Bottom line

The first year of retirement often exposes mismatches between older income, current cash flow, senior benefits rules, and long-standing savings habits. But feelings, including those of surprise, aren't always a good gauge of how well you're really doing.

The first retirement year can also be a misleading baseline for later years, as it can combine late-career income and benefits, along with overlapping tax or healthcare strategies. If your retirement plan doesn't already have a special provision for first-year realities, update your numbers to accommodate.

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