you can sign up for insurance outside of the open enrollment period when life changing events take place. your son returning to the states would allow him to sign on for coverage no matter when he comes back.
my son turns 26 and ages out of our healthcare on nov. 21. . he is currently studying at london school of economics and is covered under british system. he will be home for christmas and then return to the uk and not likely return until school finishes at the end of sept. 2014. we do not think he will return at easter. when must we enroll him in health insurance? he may have a job again as soon as he returns but don't know when benefits will begin. will he be fined? what do we do? must we do it when he is home at christmas?