TTax won't accept my license document number

[MindyB]

I am assuming this is for NY, as NY is very particular about the document entry. Enter the first 3 characters after, not including "IDUSA".  Some other users experienced errors with incorrect issue and expiry dates, so double check they are correct and not swapped as well. 

For more information, see Where do I find my document number so that I can e-file my New York return?

If you need extra time, filing an extension by April 15, 2026, moves your submission deadline to October 15. But remember any taxes owed are still due in full by the original April 15 date.