Keep the family plan at work, or move yourself to Medicare while your spouse waits a year? I am an engineer, not an advisor, so I did the arithmetic: the family premium, Part B, a supplement, an IRMAA surcharge set by a two-year-old tax return, and the HSA rule that quietly voids contributions.
The company hands you 18 months of COBRA on the way out and it feels generous. Medicare's 8-month clock started the month you left, COBRA usually costs more than Medicare would, and no, you do not get to keep both. An engineer shows his work.
You retire in the spring. Your income drops by two thirds. And the following January, Medicare bills you as though you are still earning what you earned two years ago. There is a form that fixes this, most people have never heard of it, and it is the last of our seven doors.
There is exactly one window in your life when an insurance company cannot say no to you on a Medicare supplement. It is six months long, it happens once, and Medicare says plainly that it does not repeat. Almost nobody understands what they are giving up when it closes.
Medicare is an individual program. There is no family plan and no spouse rider. So when the older half of a couple ages into it, the younger half can quietly lose coverage, and the moment that happens determines whether she has good options or almost none.
He retired from a city job with the retiree health plan everyone in the building envied. What nobody explained is that retiree coverage and employer coverage are two different things under Medicare's rules, and there is a line in Medicare's own guidance that decides what his plan is actually worth.