Where do I find my document number so that I can efile my New York Return?
Document number required for New York Filers
For tax year 2016, New York is requiring all users who file in New York and have a New York issued ID to enter the document number (in addition to their ID number) on your New York State return.
This number is an 8 or 10 digit alphanumeric number located on the lower right corner of your license, permit or non-driver ID, or on the back if it was produced after January 28, 2014. The document number begins after 'IDUSA'. Do not include IDUSA as part of the document number. Please see the examples below to help in locating the document number. For more information please refer to dmv.ny.gov/id-card/sample-photo-documents.