Medicare

Medicare vs. Marketplace: Which One Are You Supposed to Have?

Viva Insurance Group · Updated July 2026 · 4 min read

Retired couple walking in a sunny South Florida neighborhood

These are two completely separate systems, and the rule for which one you belong in is simpler than it looks: it's almost entirely about age 65.

The simple rule

Under 65, no employer coverage: the Marketplace is your system. Subsidies lower the premium based on income.
65 or older (or on disability 24+ months): Medicare is your system, even if you like your Marketplace plan.

The trap: staying on a Marketplace plan past 65

This is where people get hurt. Once you're eligible for Medicare:

Your Marketplace subsidy ends. Keeping the plan means paying full price, and any subsidy paid after eligibility may have to be repaid at tax time.
Medicare late penalties start accruing. Part B costs 10% more per year late, for life. The Marketplace plan doesn't count as "creditable coverage" that protects you.

In plain English: the Marketplace doesn't kick you out at 65, it just quietly gets expensive and starts a penalty clock. The move to Medicare is on you.

The handoff, step by step

✓3 months before 65: enroll in Medicare Parts A and B (see our turning-65 checklist).
✓Pick your Medicare path: Advantage or Supplement, with your doctor list in hand.
✓Then cancel the Marketplace plan effective the day Medicare starts, not before (no gap), not after (no double-paying).

Mixed households

One spouse turning 65, the other 58? Completely normal: the older spouse moves to Medicare, the younger stays on a Marketplace plan, and the household subsidy gets recalculated for the smaller plan. We handle both sides of that transition in one conversation.

Close to 65 and on a Marketplace plan? Let's time your handoff so nothing lapses and no penalty starts.

Plan My Switch