How much can I make working while on Medicare?

You can delay signing up for Medicare while working full-time if your employer has 20 or more employees and offers health coverage.

Employers with 20 or More Employees

• Primary Coverage: Your employer's group health plan pays your medical bills first. Medicare acts as secondary insurance if you choose to enroll in it.
• Delaying Enrollment: You can delay enrolling in Medicare Parts A and B without late penalties as long as you have active group coverage.
• Special Enrollment Period: When you finally stop working or lose your job-based insurance, you get an 8-month window to sign up for Medicare without penalties.

Employers with Fewer than 20 Employees

• Primary Coverage: Medicare becomes your primary insurance as soon as you turn 65.
• Enrollment Rule: You must sign up for Medicare Parts A and B during your Initial Enrollment Period (the 7-month window around your 65th birthday).
• Risk: If you do not sign up, your employer's plan may pay little or nothing for your medical care.

Important Rules to Remember

• Health Savings Accounts (HSAs): You cannot contribute to an HSA once you enroll in any part of Medicare, even Part A. Stop contributions at least 6 months before applying for Medicare to avoid tax penalties.
• COBRA and Retiree Plans: COBRA and retiree health plans do not count as active employer coverage. You must sign up for Medicare at 65 to avoid late penalties with these types of plans.
• Prescription Drug Coverage: Make sure your employer plan is "creditable" (as good as Medicare Part D) so you avoid late penalties when you switch later. You can check official guidelines on Medicare.gov.

The biggest mistake people make with Medicare is missing enrollment windows, which can lead to permanent financial penalties and coverage gaps.

Timing and Enrollment Mistakes

• Missing Deadlines: Failing to sign up during your Initial Enrollment Period (IEP) around age 65 triggers lifelong financial penalties for Part B and Part D.
• Misjudging Work Coverage: Assuming you can delay enrollment while working past 65 without checking if your employer plan is "creditable coverage" (plans with fewer than 20 employees often require Medicare to go first).
• Missing the Medigap Window: Waiting past your 6-month Medigap Open Enrollment Period (which starts when you turn 65 and enroll in Part B) means you may have to pass medical underwriting to get a supplemental plan.

Plan Choice and Cost Mistakes

• Focusing Only on Premiums: Choosing a plan with a low or $0 monthly premium without checking deductibles, copays, or maximum out-of-pocket costs.
• Ignoring Annual Changes: Not reviewing your plan’s Annual Notice of Change (ANOC) or skipping the Annual Enrollment Period, which leads to surprise costs as drug formularies and doctor networks shift yearly.
• Assuming Doctors are In-Network: Failing to verify if your preferred physicians and hospitals accept your specific Medicare Advantage or Part D network.
• Thinking Medicare is Free: Forgetting that Original Medicare has monthly premiums, deductibles, and coinsurance, and does not cover routine dental, vision, or hearing care.

Yes, a portion of your Social Security benefits can count as income toward determining your Medicare premiums, but only the taxable portion is included.

Medicare premiums are calculated based on your Modified Adjusted Gross Income (MAGI). For Medicare purposes, your MAGI is your Adjusted Gross Income (AGI) plus any tax-exempt interest (such as municipal bond interest).

How Social Security Affects Your Premiums

1. The Taxable Portion Counts: When you file your federal taxes, depending on your overall "combined income," up to 85% of your Social Security benefits may be considered taxable income. This taxable amount is included in your AGI and directly flows into your Medicare MAGI calculation.
2. The Non-Taxable Portion is Excluded: The remaining percentage of your Social Security benefit that is not subject to federal income tax is entirely excluded and does not count toward your Medicare calculation.

Why This Matters: IRMAA

Most people pay the standard premium for Medicare Part B ($202.90 per month) and a baseline premium for Part D. However, if your total MAGI—including that taxable Social Security portion—crosses a certain threshold, you will be hit with a high-income surcharge called the Income-Related Monthly Adjustment Amount (IRMAA).

• The Thresholds: For Medicare premiums, the Social Security Administration uses a two-year tax lookback. Your premiums are determined by the MAGI reported on your tax return from two years prior.
• The Cliffs: IRMAA is a "cliff" surcharge. If your taxable Social Security pushes you even $1 over the threshold, your monthly premium for both Part B and Part D will jump to the next bracket.

A Note on Premium Deductions

If you are already collecting Social Security benefits, Medicare will automatically deduct your Part B (and sometimes Part D) premiums directly from your monthly Social Security check before it is deposited. Even though you do not "see" this money, the gross amount of your benefit is still used by the IRS to figure out what portion is taxable and subsequently counted toward future Medicare adjustments.

You are likely paying close to $700 a month because of an income-based surcharge called IRMAA (Income-Related Monthly Adjustment Amount) added to your Social Security Administration Benefits Planner.

Why the Cost is High

• The IRMAA Surcharge: While the standard Medicare Part B monthly premium is $202.90, higher earners must pay an extra surcharge. If your total monthly cost reaches nearly $700, your past income has pushed you into a higher IRMAA bracket.
• Look-Back Period: Medicare determines IRMAA using your Modified Adjusted Gross Income (MAGI) from two years prior. A high-income tax return from two years ago dictates your current monthly bill.
• Combined Parts: This total often includes surcharges for both Part B (outpatient care) and Part D (prescription drug coverage).
• Automatic Deduction: This amount is typically taken directly out of your monthly Social Security check or billed quarterly if you are not yet collecting benefits.

What You Can Do

• Check for Life-Changing Events: If you experienced a major income drop due to a life-changing event (such as marriage, divorce, or work reduction), you can appeal to have your surcharge lowered.
• Review Details: You can check specific rules and thresholds directly through AARP's Medicare Guide or contact Social Security.

Having money in the bank does not affect your standard Medicare eligibility or your regular monthly premiums, but it can affect your taxes, certain premium surcharges, and separate low-income assistance programs.

Standard Medicare Eligibility and Costs

• No asset limits: Medicare is a federal health insurance program based on age or disability, not on your income or savings. Having cash in a savings or checking account will not disqualify you from getting Medicare.
• No direct penalty: Simply holding money in the bank does not raise your standard Part A, Part B, or Part D monthly costs.

When Money in the Bank Does Matter

• Income-Related Monthly Adjustment Amount (IRMAA): While Medicare does not look at your bank balance, it does look at your yearly taxable income. If the money in your bank generates a large amount of taxable interest, capital gains (from selling stocks or property), or large traditional IRA withdrawals, it can raise your Modified Adjusted Gross Income (MAGI). If your income from two years prior crosses specific government thresholds, you will pay a higher monthly price for Part B and Part D through IRMAA.
• Extra Help and Medicare Savings Programs: If you rely on state or federal assistance programs to help pay for your Medicare deductibles, copays, or prescription drugs (such as the Part D Low-Income Subsidy or Medicare Savings Programs), these programs do have strict resource and asset limits. Having too much cash in the bank can cause you to lose eligibility for these extra assistance programs.
• Medicaid vs. Medicare: People often confuse Medicare with Medicaid. Medicaid (which helps pay for nursing homes and long-term care) has very strict asset limits—often restricting individuals to just $2,000 in countable bank accounts.