I worked and lived in CT for 5 mths in '18 but returned to CO (where I am from) for the remainder 7 mths and cont'd to work for CT. Am I a PY or FY resident of CO?

[pk · Accepted solution]

if you did not fully settle down  in CT ( i.e. bought a house, kids went to school, changed your driver's license, car registration, voter's registration etc. ), then I would say that your home was CO, where you always planned to return.  So you are full year resident of CO and possibly non-resident of CT.  File a part-year/Non-Resident return for CT and resident return for CO