No, they won’t cut you off, as @Kayak8 said, you go month to month, but this is the time to decide whether or not you want to stay with Verizon or maybe go with another carrier. I have had my service with Verizon for a long time. I’ve always signed up for another 2 years because I’m happy enough with them and they always a pretty good selection of phones I get for free every time I lease my soul to them for another two years, but once you renew you’re locked in for another 2 years so if you want an iPhone, e.g., this is the time to decide, when your contract is up.