I am J1 nonresident for tax purposes using the Sprintax software and I ran into a bit of a conundrum. The software is applying a FICA deduction for my MA state tax return but I am claiming a refund of said FICA from my employer... In this situation does the FICA deduction still apply or is it a bug in the software?
Because you know you will be getting a corrected W-2, I would recommend waiting to file your actual return to both the IRS and the state and instead file the request for an extension to both agencies.
This will put your new filing deadline out to October, but it does not move the payment deadline. So what you need to do is calculate your tax returns based on the numbers you believe the corrected W-2 will show. If you are expecting a refund, then there is no problem, but if you are expecting to owe any tax, you’ll need to send that payment in along with your extension request form.
Then when your corrected W-2 arrives, you can doublecheck the numbers and file your tax returns with the right numbers. This is easier, in my opinion than filing now with numbers you know are incorrect and amending later.