Check to ensure that is it correct.  Some of the most common errors are:  unsing the number 1 for the letter l, the number 0 for the letter O, the number 5 for the letter S, and the number 8 for the letter B.
Can I use the same username from my NY.gov account if I enroll with the Online Tax Center of the Department of Taxation and Finance?
Yes, you can use the same NY.gov ID username and password to access services offered by both agencies.
What will I need to begin a MyDMV account?