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A Seniors Guide article, based on Part II of a Kiplinger’s Personal Finance series, describes six additional Medicare mistakes involving enrollment deadlines, secondary coverage and income-based surcharges. The source gives 2026 premium figures, but its supplied text ends during the discussion of appealing a surcharge, so the full sixth item and any later guidance are not available here.
Seniors Guide has published Part II of a Kiplinger’s Personal Finance series on Medicare pitfalls, outlining six additional mistakes that can lead to coverage gaps, late-enrollment penalties or higher premiums. The report focuses on enrollment at age 65, the difference between current-employer coverage and retiree or COBRA coverage, and how income can affect Medicare costs.
The report says people who are not already receiving Social Security benefits generally need to take action to enroll in Medicare when they become eligible. It describes a seven-month initial enrollment window that begins three months before the month a person turns 65 and ends three months afterward. It also cautions that delaying Part B may be appropriate for some people with qualifying coverage through a current employer, while people who want to keep contributing to a health savings account need to account for Medicare’s restrictions on HSA contributions and the report’s cited six-month lookback rule.
A central distinction is whether coverage comes from current employment. The article says retiree coverage, COBRA and severance benefits do not generally count as active-employer coverage that allows someone to delay Part B without potential consequences. It also says people who leave a job with qualifying employer coverage should enroll during the applicable eight-month special enrollment period to avoid a coverage gap or late-enrollment penalty. Employer size can affect which coverage pays first, so the report advises checking with the employer about the individual situation.
The report also warns that income can increase Medicare costs through the income-related monthly adjustment amount, or IRMAA, for Parts B and D. It lists a 2026 standard Part B premium of $202.90 per month and says 2024 tax-return income is used to determine 2026 income-related charges. The provided source text begins describing six mistakes but cuts off partway through the sixth, which concerns appealing a surcharge after retirement income falls.
Enrollment Choices Can Carry Long Costs
Medicare enrollment decisions can affect both access to coverage and monthly expenses. According to the report, missing a qualifying enrollment period may leave someone waiting for another opportunity to sign up, with a possible gap in coverage and a Part B late-enrollment penalty that can last for as long as the person has Medicare. That makes the distinction between active-employer insurance and coverage such as COBRA especially relevant for people approaching 65 or leaving work.
Income planning can matter, too. The report says certain financial moves, including large withdrawals from tax-deferred retirement accounts or converting traditional IRA funds to a Roth IRA, may raise adjusted gross income and affect IRMAA. These are not automatic reasons to avoid such transactions: the article’s point is that the potential Medicare premium effect should be weighed alongside other tax and financial considerations, ideally with advice suited to a person’s circumstances.
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How the Enrollment Windows Work
The report is the second installment of a two-part series; the first installment covered five other Medicare mistakes. Its focus here is on decisions that become relevant around age 65, when a person stops working, or when income changes. Medicare coordination rules depend on factors including whether a person or spouse is still working and the size of the employer, so the article does not treat all workplace coverage as equivalent.
For people who delay Part B because of qualifying current-employer coverage, the report describes an eight-month special enrollment period after work or the employer health plan ends. It says coverage typically begins the month after enrollment. The article also notes that Social Security uses income information from two years earlier to assess IRMAA: for 2026 premiums, it cites 2024 tax-return information. Its listed 2026 thresholds are income above $109,000 for single filers and $218,000 for joint filers, with Part B surcharges ranging from $81 to $443.90 per month and Part D surcharges from $14.50 to $91 per month.
“You have a seven-month window to sign up — from three months before your 65th birthday month to three months afterward.”
— Seniors Guide, summarizing the report’s enrollment guidance
Appeal Guidance Is Incomplete
The supplied source ends during its sixth item, which discusses contesting an income-related surcharge after retirement. It does not include the rest of that item or the full list of six mistakes, so no additional details about the appeal process or qualifying life changes can be confirmed from the material provided. The source also does not specify its publication date, and its 2026 figures should be read as figures reported for that year, not as a statement about later-year premiums.
Individual enrollment and coordination rules can depend on employment status, employer size, existing coverage and personal circumstances. The source does not establish what choices are appropriate for any particular beneficiary.
Check Eligibility Before Deadlines
People nearing 65, leaving a job or losing employer coverage should verify their enrollment dates and ask how their specific plan coordinates with Medicare. The report points readers to the Social Security Administration’s information on applying for Medicare only. Those reviewing a surcharge should check the relevant income year and seek information from Social Security about whether an appeal applies to their circumstances.
The source material does not announce a new Medicare rule or a scheduled policy change. Its immediate takeaway is a reminder to confirm deadlines and premium effects before making enrollment or financial decisions; the complete sixth item cannot be summarized from the supplied excerpt.
Key Questions
What is the Medicare report about?
It is Part II of a two-part series describing six additional Medicare mistakes, including missed enrollment periods, misunderstandings about employer-related coverage and income-related premium surcharges.
When is the initial Medicare enrollment window?
The report describes a seven-month window: the three months before the month a person turns 65, the birthday month, and the three months afterward. Individual circumstances may affect enrollment decisions.
Does COBRA coverage generally let someone delay Medicare Part B?
The report says COBRA and retiree coverage are not generally treated like coverage through a current employer for this purpose. People should check their own eligibility and enrollment deadlines with Social Security and their plan.
How does income affect Medicare premiums in the report?
It says income-related adjustments can raise Parts B and D costs. For 2026, the report cites 2024 tax-return income as the basis for determining those charges and lists thresholds and surcharges for that year.
Does the supplied article explain how to appeal an IRMAA surcharge?
Not fully. The supplied text starts discussing an appeal after retirement-related income changes but cuts off before providing the rest of the guidance.
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