En español | Many people these days have health coverage beyond age 65 from their own or their spouses’ employers. In most cases, they can delay Part B enrollment and avoid its premiums until the employment ends, without incurring late penalties. A much rarer situation for postponing Part B enrollment without penalty occurs when a person who is not entitled to premium-free Part A returns to the United States after living abroad.
Having health coverage from active employment
After turning 65, you can delay enrolling in Medicare Part B (and avoid paying its premiums) for as long as you are covered under a group health plan provided by an employer for which you or your spouse actively works. (Note that “active” is the key word here. Retiree benefits or COBRA coverage from a former employer do not count as active employment.)
When the employment or health care coverage ends (whichever occurs first) — no matter how old you are — you are entitled to a special enrollment period (SEP) of up to eight months to enroll in Part B without getting late penalties. During this SEP you can also sign up for Part A benefits (if you haven’t already done so) and for Part D prescription drug coverage.
This rule also applies if you live outside the United States and you or your spouse is working, and you have health coverage provided by an employer or by the public health service of the country in which you live.
However, the rule does not apply in certain situations:
For more information, see the AARP article “Medicare When Working Beyond 65”.
You are not entitled to premium-free Part A benefits and live overseas
Most people who live overseas without working must enroll in Medicare Part B when they reach 65 (even though they cannot use Medicare services abroad) or pay late penalties when they sign up on returning the United States. However, there is one exception to this dilemma.
If you are not entitled to Medicare Part A benefits without paying premiums for them — in other words, if you or your spouse has not earned 40 work credits by paying Medicare payroll taxes while working — you cannot sign up for any Medicare benefits outside the United States.
Instead, you can sign up without incurring any late penalties, provided that you do so no later than the end of the third month following the month in which you arrived back in the United States to live here permanently.