If you have a loss carried forward you need to look at the older returns ... start with 2016.
If you purchased Audit Defense for your tax return, call Tax Resources, Inc. at (877)-829-9695, or report your notice on their web site at http://intuit.taxaudit.com/. Do not contact the IRS. Let Tax Resources contact them for you.
This is the membership email you should have gotten: https://ttlc.intuit.com/questions/1901569-when-will-i-get-my-audit-defense-membership-kit
Also read the member agreement at this website -https://turbotax.intuit.com/corp/auditdefense.jsp
If you did not purchase Audit Defense:
TurboTax has a special phone number for help with IRS tax letters, which will be easier than going through regular Customer Support. At the page below, click on the blue button that says "Get Help from TurboTax Support". Then it will ask you what tax year is your letter. Then it will ask you what the letter concerns. Then it will show you the phone number during posted business hours.
https://support.turbotax.intuit.com/irs-notice/audit-support/
A Section 465 (d) carryover refers to the ‘at-risk’ rules of Section 465 of the Internal Revenue Code. Under that section, your losses are limited to the amount you have at risk in the activity. A loss that was disallowed because of the at-risk rules is generally treated as a deduction from the same activity in the following tax year (ie. carried over).
The amount you see for Section 465(d) carryover is the amount of loss you weren't able to take last year, but may be able to take this year.
If you are certain you didn't have a Section 465 (d) carryover from prior years, you can clear this up by adding a negative "Miscellaneous" expense and describe it as "Section 465 (d) carryover offset".
For more information see IRS Pub. 925 - Passive Activity and At-Risk Rules
