This article describes how to set up vendors to receive Form 1099-MISC in QuickBooks for Mac.
Before setting up vendors to receive Form 1099-MISC, http://www.qblittlesquare.com/2010/11/tax-time-working-with-forms-1099-and-1096/
To set up those vendors that receive Form 1099-MISC:
Important: Before producing 1099-MISC forms for 1099-eligible vendors, make sure that all taxpayer identification numbers and addresses are correct.
If these steps do not resolve the issue, you can read discussions and post messages and questions relating to your issue on the Intuit QuickBooks Community site for free or you can contact a technical support agent for additional guidance. Fees may apply.