I used tax treaty for one full year and currently I'm more than 2 years in US. Do I need to pay back the retroactive tax? Is it both federal and state tax or one of them?
I'm still in J1 visa from India. I wanted to calculate how much I need to pay back. is this only the federal tax or also the state tax? A suggestion on how much percent of my annual salary this tax is would be really helpful.
