Thanks for the reply. Makes complete sense. As I understand it, a nonresident in Massachusetts is someone who may live in another state, but physically travels to Massachusetts to work. For example, many people live in NH, but drive to Boston for work. What was odd on TurboTax was that the CO return allowed me to allocate, but the MA one wouldn't let me and kept the non-MA portion grayed out. It happens no matter which state I do first.
