Servicemembers' Group Life Insurance covers you automatically while you're on active duty, at some of the lowest group rates available anywhere, with no health questions asked. That protection does not simply carry over into civilian life. Unless you take action around the time you separate, it lapses, and the replacement most people default into, Veterans' Group Life Insurance, is a different product with a different cost structure.

The transition is manageable if you understand the timeline and your options. It gets expensive, or leaves you uninsured, if you let the window close without deciding anything. Here's what actually happens to your coverage, and how to think through the conversion decision instead of defaulting into it.