IT IS MOST ILLEGAL FOR ANY PAID TAX PRO TO USE THE TT PROGRAM BECAUSE THEY CANNOT SIGN THE RETURN THAT THEY MUST EFILE. ALL PAID TAX PROS MUST USE A PROFESSIONAL TAX PROGRAM AND BE AN EFILING PARTNER WITH THE IRS IF THEY FILE MORE THAN 5 RETURNS PER YEAR.
READ UP ON THE RULES HERE :
If you are a specified tax return preparer, you are required to e-file the covered returns you prepare and file. There are certain exceptions. (See FAQ 12). In those situations, you should attach Form 8948, Preparer Explanation for Not Filing ElectronicallyPDF, to those paper returns.
https://www.irs.gov/e-file-providers/frequently-asked-questions-e-file-requirements-for-specified-ta....
