I have invoices on quickbooks that were inputted when transferring to quickbooks from old system how do i clear these as paid?

Hi team-mcsbranding, thanks for joining the Community 

It is possible to void or write off invoices as bad debit, however, as these have been paid in a previous period we would recommend contacting your accountant for the best way to handle these so that it doesn't impact your VAT or current or previous years accounts. 

If you don't already have an accountant, you can find a QuickBooks certified ProAdvisor near you on our online directory.