The state of Massachusetts will not be able to process your return if you send it without the ITIN for your wife. Your best option is to file an extension, with just your information. Also since it sounds like you already calculated your tax return, if you have a balance send that in too. See the link below for the form.
Massachusetts Income Tax Extension Payment Worksheet and Voucher
[Edited 3/30/24 | 5:13AM PST ]
