If you are on a J-1 visa, you will be exempt from the Substantial
Presence Test for the first 2 (if
non-student) or 5 (if student) calendar years that you are in the US. This
means that you are considered a non-resident aliens for US tax purposes.
You will need to file a Form 1040NR to report your US
source income. TurboTax does not support Form 1040NR. You may want to try https://www.sprintax.com/ which is specifically designed to help
international student nonresident aliens with their US tax returns.
Here is a link to
the IRS website for Form
1040NR, U.S. Nonresident Alien Income Tax Return . You will only need to report your US-source income on your 1040NR.
Click this link for more information from the IRS on US Tax Guide for Aliens