Yes, you would need to file the federal and state separately. If you are a nonresident on J-visa, you are required to file a Form 1040-NR. If you have filed with TurboTax, you will need to file an amendment. To amend from Form 1040 to 1040NR, here are the instructions to amend:
As TurboTax does not support any nonresident tax forms, you are recommended to use our affiliated partner, Sprintax to complete your Form 1040-NR.
1. Download the Form 1040-X from IRS website ( see below). On the front page of Form 1040-X, enter your name, current address, and social security number (SSN) or IRS individual taxpayer identification number (ITIN)
2. Do not enter any other information on page 1.
3. Do not complete Parts I or II on page 2 of Form 1040X.
4. Enter in Part III the reason why you are filing Form 1040X.
5. Complete a new Form 1040-NR by using Sprintax, see above.
6. Across the top of the 1040-NR, write “Amended”
7. Attach the new Form 1040NR to the back of Form 1040X
For more information, see:
https://www.irs.gov/pub/irs-pdf/f1040x.pdf - form
https://www.irs.gov/pub/irs-pdf/i1040x.pdf - instructions
page 5 under Residents and Nonresidents
