Ohio Business Gateway Outofstate sellers may obtain a seller's use tax license immediately through the Ohio Business Gateway. Step 1: Visit the State Procurement website at procure.ohio.Gov and hover over "for Suppliers" then select "Selling to the State". This application form is necessary for vendors intending to make taxable sales in Ohio. The Ohio Application for Vendor's License form is essential for individuals and businesses looking to sell goods or services in Ohio. Appropriate Use of this Form. We'll work with you to make sure we create a solid contract and negotiate the best solution for your business or personal needs. Let your business shine at our thriving indoor-outdoor vendors market in Northeast Ohio! Suppliers located outside of the United States must complete a W-8BEN Form (PDF). To receive this free two-year certification, a company must complete the Contract Compliance Questionnaire in the Vendor profile section of vendor services.