Ecommerce businesses must register with the Florida Department of Revenue and obtain a sales tax permit. The Florida Department of Revenue uses the information on the DR1 form to determine the appropriate tax classification for your business.You will require an online business license in Florida if you are planning to buy and sell products or services using electronic channels exclusively. A Florida lawyer, such as at The Elliot Legal Group, P.A., can help you with ecommerce laws so you can mitigate risks and ensure compliance. This e-commerce specialist course provides in-depth training on the latest industry trends and best practices, including all aspects of e-commerce. Sign and date the form. E. Complete the accompanying affidavit (pages 8-9). Here's a comprehensive guide on how sales taxes work, how to determine if you owe taxes and how to stay on top of your tax obligations. Submitting a New Business Tax Application. In Nebraska, licensing requirements vary based on locality and industry you can find the information you need here.