Which tax forms do I need to file as a visiting scholar on J-1 visa, starting from Jan 2020? Considering I plan to leave US in July 2022?

[LoganathanB]

You file 1040 NR as a visiting scholar on J1 Visa.

You are considered a nonresident during the first two years since you entered the US.

After that, you are considered a resident if you are in the USA for more than 183 days and file a resident tax return, form 1040).

You can claim exemption from paying taxes if there is a tax treaty between the USA and your country.

Tax Treaty