You are not required to enter a driver's license in order to e-file your federal tax return. It adds some security but you can skip that if you want to and you can still e-file federal. There are some states that are picky about a drivers license or state ID, so some users end up having to mail their state if they cannot overcome an issue with the ID.
As for whether you are in compliance with the vehicle laws of the state you live in....that is in the category of your problem if you get in an accident or get pulled over.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
