You can file electronically by putting $1 in for NYS. They understand the limitation of electronic filing for those claiming 0, so it’s been acceptable in practice to do this in order to efile. One respondent said they wouldn’t bother with the letter - please let us all know if you become the first person NYS doesn’t request a letter from. The letter theoretically could come from anyone who has authority to know where you were during the tax year and has access to records - usually HR is the easiest way to do this. The NYS response letter will be more specific in what they want in the letter - but some employers take a looong time to get this letter together so doesn’t hurt to let them know you likely will need it soon.
