@AlanG1
You posted your question a week ago to an unrelated thread -- I happened upon your question by chance. You have a serious issue and should have started your own new question so that someone would notice it and respond.
TurboTax does not receive any information from the IRS about your return after you have filed it, so no one at TT knows about the notice you received. You have not given any other details about your IRS letter so it would be impossible to guess how to help. Start your own new question and explain the letter you received. What is the letter number or CP number? What does the IRS say they changed or disallowed on your 2017 return?
Meanwhile:
(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/
**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.**
