(If you have open purchase orders with the vendor that you select, QuickBooks will ask you whether or not you want to enter the bill against a purchase order. You will need to go back and edit this vendor at some point, to input the other pertinent information - especially if this is a vendor that you will need to generate a 1099 for at year end.) See How to Setup Vendors for 1099 in QuickBooks Mac. You can use the 'Quick Add' option if you do not have all the information readily available for this vendor, and input only the basic information for now. Next, select the name of the vendor you are entering this bill for, from the dropdown list at Vendor (If this is a new vendor that is not yet setup on QuickBooks, QuickBooks will ask you to 'Quick Add' or 'Set Up' some information about the vendor. (NOTE: You can also access the Vendors icon from the Vendors area on the Home page.) From the top menu bar in QuickBooks select Vendors, then Enter Bills. Follow the steps below to get your bills setup in QuickBooks Mac Edition: