The addition of a dependent to an eisting group health plan must usually be done during open enrollment, but there are eceptions to this rule. A newborn child, or a newly adopted child, may be added to your group health plan at any time. The same holds true for a new spouse. And, another eception is a spouse that has lost their current health insurance. So, once your wife leaves her current employment, she will be given the option to continue on that plan under COBRA. A COBRA option letter will be mailed to her shortly after her group coverage terminates. This letter can be presented to your employer, who will then submit it to your insurance carrier as proof that she is eligible to join the group health plan outside of the open enrollment period. There may be a 30 day lapse in coverage, during which period you may want to pay her COBRA. This is because you won't be able to add her to your group plan until you can prove that she has lost her coverage, and then she will be added to your policy on the first day of the following month. She will have 60 days to accept her COBRA option, which will give you plenty of time to make certain that she will be covered under your employer's group plan. You can verify this with your employer or insurance company and also ask them if there is any other way that she can be added to the policy without a lapse. One way that might work is to have her give notice in the middle of the month, so maybe she can get the COBRA option letter soon enough to provide proof to the new insurance company and avoid the 30 day lapse in coverage. Your employer or insurance company should be able to better inform you on how to make this transition more immediate.