Product Support Support Center Manage Online Support How To: Articles Financials Creating a Cash Invoice Recording a Partial Payment Applying Discounts Using Split Payment to Close an Invoice Including Payment Details on an Invoice Crediting an Invoice Exporting to QuickBooks Desktop Export Applying Discounts To apply discounts to a Document, select Work >> Discounts. Input discount percent (%) or total on desired labor or product line >> click Update.Click the Work tab to return to the Work Document.