What should I know about Medicare before I retire?

Medicare can feel like a separate checklist. Turn 65, pick a plan, move on.

It is more connected than that.

Medicare affects your retirement date, your bridge insurance if you retire before 65, your monthly cash flow, and sometimes your tax strategy because higher income can increase Medicare premiums through IRMAA.

The basic timing

Most people become eligible at 65. If you are already retired, you usually need to pay close attention to the initial enrollment window. Missing it can create penalties that do not simply go away.

If you are still working and covered by an employer plan, you may be able to delay, but the rules depend on the type and size of the employer plan. This is an area where guessing is a bad idea.

The planning issues people miss

The biggest misses I see are not usually about the Medicare plan itself. They are about coordination:

• retiring before 65 without a good bridge insurance plan
• doing Roth conversions without watching IRMAA thresholds
• assuming Medicare means healthcare becomes cheap
• forgetting that a spouse may be on a different timeline
• waiting too long to understand Medigap, Medicare Advantage, and prescription coverage

Why this belongs in the retirement plan

Healthcare is one of the largest expenses in retirement. Medicare helps, but it does not make healthcare free, and the choices are not isolated from the rest of the plan.

If you are within a few years of retirement, Medicare should be part of the same conversation as Social Security, portfolio withdrawals, taxes, and cash reserves. It is all connected whether we plan for it or not.