If you are filling sales tax fox online via QuickBooks, you must aware about Tax 1099. What is this tax 1099? Is it effective? Is it required to be filled during sales tax form filling? 1099 is a MISC form which is being used for customer, vendor case at the time of tax filling. This one defines which tax can be applicable on which customer or vendor. If you do not want to use this MISC 1099 form during tax filling for vendors like self employed contractors or you want to delegate this 1099 part with your accountant, just select the No option in this category. If you want to file 1099 forms, you just have to specify those accounts which you want to track via 1099. You have to inform or mention the amount limit in IRS. How to file this tax 1099? Reach us on 1-877-227-2303 for instant QuickBooks Support. Our experts are available 24x7 to give assistance for the concept of tax 1099.