I worked in the U.S. from February 2017 to January 2018 on an F1-OPT status. I was hired as a contractor so I got my monthly salary without any deductions. I used Glacier tax services to file my federal return but I'm still confused on what's the the easiest way to file my state return for D.C. I received 1099-MISC forms for whatever I earned. I need to pay my taxes but need to understand how much to pay and how.
I've been checking the DC state tax website and other places but I haven't found an answer because of my very specific condition.