After you file

Have the IRS notice available when you speak with a support agent at the Audit Support Center.  They will assist you in understanding the IRS notice you received.

Use this website for the Audit Support Center during business hours - https://support.turbotax.intuit.com/irs-notice/audit-support/

Support opens on Monday January 8 at 5am Pacific time.  Beginning on 01/08/18 support is open 7 days a week from 5am to 9pm Pacific time.