Should I Enroll in Medicare While Still Working?

If your employer has 20+ employees and you have active group coverage, you can delay Part B. If your employer has fewer than 20 employees, you should enroll — Medicare is primary regardless of your employment.

When This Applies

  • You are 65 or older and actively working
  • You have employer health coverage
  • You want to avoid paying Part B premiums while working
  • You have an HSA and want to keep contributing

Frequently Asked Questions

Should I at least get Part A while working?
Usually yes, since Part A is typically free. But if you have an HSA, enrolling in Part A disqualifies you from contributing. Weigh the HSA benefit against free Part A.
What happens when I retire?
You get an 8-month Special Enrollment Period starting when your employment or employer coverage ends, whichever comes first.
What if I work part-time?
Part-time status doesn't matter — what matters is whether you're actively employed and whether the employer has 20+ employees.