Please be reminded that QuickBooks currently doesn’t support online submissions for CIS returns. You need to manually enter them through the HMRC website. Use your business’s authentication codes to report the data in the CIS300 form within 14 days of the end of the tax month.
Enter the total payment made to each sub-contractor showing their name, verification number (obtainable from HMRC) and the deductions. Go to the Reports menu and locate the following report names on the Search box:
CIS Contractor Monthly Statement (CIS 300)
CIS Payment and Deduction Statement
CIS Suffered Summary
To learn more about how we handle CIS transactions, refer to these articles: