Inland Empire Small Business Development Center Training Event: Do you need a seller's permit or are you simply a qualified purchaser or 6015 retailer? Gain an understanding of sales and use tax as you run your business through web & auction sites, drop-ship, or electronically transmit product. Learn when district tax is applicable to your sales. Discover how to use a sale certificate and how to back-out the tax when you sell items "tax included". Consignment sales, shipping and handling, it's all in this informative presentation.