How many hours do you need to work to not be billed for health ins? I live in mass and I'm on the blue cross blue shield plan. I have been taking a lot of voluntary days off but I don't want to end up getting a bill. Someone told me I had to average 250 hrs a quarter which seems pretty high. Someone told me to hit 900 hours for the year. And someone else told me I have to average 17.5 hrs a week. Anyone know the answer thanks!