This answer is incorrect/outdated. Even the IRS From 2441 shown within TurboTax itself tells you to input the EIN (nn-nnnnnnn), allowing for 7 digits after the hyphen. IRS.gov says they are 9 digits, not 8 and a hyphen. My provider has an EIN that is that long (9 digits). TurboTax software does not allow you to input this many characters because it requires the hyphen, so you are stuck at smart check.
Please fix the software.
UPDATE:
Quirk of the software - selecting and deleting the entire line and just retyping the entire EIN worked. Editing what was present would not, because it would still cap at 9 total characters and give an error.
