TurboTax provides the software for a do-it-yourself tax return--TurboTax does not "do" your tax return. The information entered is entered by the user. TT does not know if you enter your information correctly or completely; the software program does not know if you mis-type something or leave out income. Your post contains no details or information about what you think was done wrong, so we cannot comment further on what mistake(s) may have been made unless you tell us more.
(what the letters from the IRS mean)
I GOT A LETTER FROM THE IRS
https://ttlc.intuit.com/questions/3605673-i-got-a-letter-or-notice-from-the-irs
I AM BEING AUDITED
If you purchased Audit Defense:
https://ttlc.intuit.com/questions/2924451-i-bought-max-or-audit-defense-and-now-i-m-being-audited
AUDIT SUPPORT
https://support.turbotax.intuit.com/irs-notice/audit-support/
https://turbotax.intuit.com/corp/guarantees/
**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.**
