NY non-resident forms to mail with my CT resident state return

[danund1]

I am a CT resident but worked in NY, so I also filing in NY as a non-resident.
I have already e-filed my NY & Federal return.
When I go to print the CT state return for mailing, TT says that I should mail the 3 NY forms:
IT-203, IT-2 (summary of W2) and a IT-201V payment voucher.
When I mail my Connecticut state return - do I need to mail all 3 NY forms IT-203, IT-2 AND (especially) the IT-201V payment voucher?

Thanks

[LenaH]

Per the CT-1040 instructions, you must attach a copy of all income tax returns filed with qualifying jurisdictions to your Connecticut income tax return or the credit will be disallowed.

Therefore, please mail the IT-203 and the IT-2 with your Connecticut return as you are most likely claiming a credit for the taxes paid to another state on your Connecticut return.

You do not have to send the IT-201V to Connecticut. 

[danund1]

Thank you for answering my question!