I live and work in NJ.  I also have a part-time job in a MD company (working remotely, I never go to MD in 2020).   I got a W2 from the MD company for the 2020 income.  In the w2, box c show the address of the company is in MD.  However, it shows the state as "NJ"   (Employer's state ID number shown as '821-xxx-xxx/000'.  '821-xxx-xxx' is the EIN number shown in box b) in box 15 and also have state tax withheld  in box 17.  Does this mean that I do not need to file MD tax?  Thank you very much