If you’re approaching retirement age, you might think Medicare Part A automatically kicks in and that it’s free for everyone. But for high-net-worth individuals, it’s not always that simple. You must weigh unique factors, such as whether you’re still working, if you have a health savings account (HSA), or if your income comes from equity compensation or business ownership. That’s why it’s so important for high-income families to weave Medicare Part A enrollment into your overall wealth and retirement plans to make the most of your options.
What Does Medicare Part A Cover?
Medicare Part A is hospital insurance, not comprehensive health coverage. It covers health services like inpatient hospital care and hospice care.
Medicare Part A doesn’t cover doctor services, outpatient care, or routine dental and vision care. Understanding these limitations is important when planning for additional coverage or out-of-pocket expenses.
If you need coverage for services not included in Part A, you may want to explore Medicare Part B or supplemental insurance options.
Premium‑Free Part A
Premium amounts for Part A vary based on your work history and how many work credits you have. One credit or quarter is a three-month period where you worked and paid Medicare taxes. People who have 40-plus quarters (10 years) of Medicare-taxed employment are eligible for premium-free Part A. If you have between 30 and 39 credits, you pay a reduced premium, while those with fewer than 30 credits pay a higher premium. This scale impacts wealthy individuals and family business owners who may have gaps in their Medicare-taxed wages or non-traditional compensation.
You can also still qualify for premium-free Plan A with fewer than 40 credits if your spouse is 62 or older with more than 40 credits and you’ve been married for at least a year.
When to Enroll in Medicare Part A
For many people, the Initial Enrollment Period (IEP) begins three months before you turn 65 and ends three months after your birthday month. There are also Special Enrollment Periods (SEPs) for those still covered under employer-sponsored health plans.
If you own your business, Medicare doesn’t always treat you the same way it treats your employees, even if you’re still working and covered by a company health plan. In some cases, Medicare may not view that coverage as qualifying “active employer” coverage, which can affect whether you’re allowed to delay Part A without consequences. This is especially important if you’re contributing to an HSA, since enrolling in Medicare (even retroactively) means those contributions must stop.
S-Corp shareholders and partners often run into similar issues because Medicare looks at how you’re paid, not just whether you’re working. Owners with more than 2% of an S-Corp, along with partners and LLC members, are typically treated as self-employed for benefits purposes. That can limit your ability to delay Part A and create HSA complications if enrollment happens later with retroactive coverage.
If your income flows through ownership rather than traditional wages, Medicare timing needs a closer look as part of your tax and retirement strategy.
Late Enrollment Penalties
Penalties are rare for Part A, but still possible. If you leave your job, you have eight months to sign up for Medicare after your employer coverage ends. If you don’t, you face a gap in coverage and late penalties for enrollment.
It’s essential to understand that these penalties can become permanent. If someone is required to pay a Part A premium and delays enrollment when they are first eligible and don’t qualify for a Special Enrollment Period, their monthly premium goes up by 10%. That higher premium generally lasts for twice the number of years they delayed enrollment.
HSA Pitfall to Avoid
Once you’re enrolled in any part of Medicare, HSA contributions must stop. Avoid making the mistake of continuing your contributions too long or allowing employer contributions to trigger penalties by halting any contributions at least six months before you stop working. This is because there’s a six‑month retroactive Part A coverage when you enroll after 65. Instead, plan your Medicare enrollment date by working backward from your tax goals, rather than signing up reactively when you turn 65 or retire.
Should You Delay Part A or Enroll Early?
In some cases, it makes sense to delay Medicare Part A enrollment. Examples include when you are covered by a comprehensive employer plan and actively contributing to an HSA. Another reason to delay is if you don’t qualify for premium-free Part A.
On the other hand, enrolling early may be beneficial for some people. If you need secondary coverage or want to plan for the risk of hospitalization, for example, it could make sense for you.
Medicare Part A and Income Planning Considerations
Medicare Part A planning should coordinate with your existing retirement, financial planning, and wealth strategies to maximize your savings.
Roth conversions
Many choose to move their traditional IRA or 401(k) funds to a Roth IRA so they get tax-free growth and withdrawals when they retire, but this conversion raises your taxable income for the year you do it. If you’re approaching Medicare enrollment, the higher income could mean higher premiums for Part B and Part D (prescription drug coverage) because of income-related monthly adjustment amount (IRMAA). Recent changes in the One Big Beautiful Bill Act made Roth conversions more tax-friendly.
Capital gains events
A capital gains event — such as selling an investment property — can impact your Medicare Part B and Part D premiums. A significant gain close to retirement can increase your MAGI and push you into a higher Medicare premium tier through IRMAA. Planning strategies may include timing the sale in a lower‑income year or spreading gains over time.
Business exits
Leaving a business through an exit or sale also affects Medicare. If the business has 20 or more employees, your health plan is the primary payer, and Medicare becomes the secondary payer. Once you sell the business, the coverage ends and Medicare becomes the primary payer. Selling the business and losing employer coverage means you qualify for an SEP to sign up for Medicare Parts A and B without penalties for eight months after your coverage ends.
Fitting Medicare Part A Into Your Retirement Strategy
Medicare decisions, retirement income modeling, tax strategies, and wealth management are all closely connected. Let’s work together to make your transition as smooth and rewarding as possible.
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