KEY POINTS
  • By 2026, the share of people ages 65 to 74 in the workforce is projected to reach 30.2%, up from 17.5% in 1996.
  • The rules for Medicare signup when you already have insurance depend partly on whether you work for a large or small company.
  • If you delay picking up Medicare, there are various deadlines you'll face when you retire or otherwise lose your coverage through a job.

If you're counting on working past your 65th birthday, be sure to consider how Medicare may factor into your plans — even if you already have health insurance through your job.

While workers at companies with fewer than 20 workers generally must sign up for Medicare at age 65, people working for larger companies typically have choices: They can stick with their group plan and delay Medicare without facing penalties down the road, drop the company option in favor of Medicare or go with a combination of the two.