I appreciate you taking time to give us feedback about your experience, Justin 1,
From here, I will be addressing your concern with complete care.
Upon turning on CIS feature, QuickBooks will calculate your CIS deductions, track your CIS withheld or suffered amounts then create the necessary reports for HMRC.
To know more on how CIS feature works in QuickBooks, I'm attaching some helpful articles that you can check:
If you have any other questions, please feel free to visit us again. Have a great day!
