How to register for a sales tax permit in South Carolina

Login to your South Carolina MyDorway account

South Carolina MyDorway is the South Carolina system for sales tax filing. After Sidr Tax applies for a sales tax permit on your behalf, you will find your username in our app. Access it by going to the registration page and clicking on the details button. You will also receive an email from South Carolina DOR with your temporary password. Verify your login with your username and password.

Business Personal Property tax account

If your business has physical nexus in South Carolina, a Business Personal Property (BPP) tax account will be automatically created for you. This tax account requires an annual filing, due within four months after the end of your fiscal year. You can manage and file this account by logging into your South Carolina MyDORWAY portal.

Because the BPP tax filing covers more than just your sales records, it is advisable to coordinate with your accountant or CPA to establish an appropriate filing plan. For detailed information on BPP tax requirements and instructions, please refer to the South Carolina Department of Revenue’s official Business Personal Property page here.

Want to setup Autofile?

Learn more about the Autofile feature here.

Learn more about the South Carolina-specific Autofile requirements here.

Updated on: 12/02/2025