If you sell to customers in other states, the long standing "physical presence" rules (tax nexus) may have changed for you, due to a recent Supreme Court ruling...
Here's a great article from the AICPA (American Institute of CPA's, our national society) to get you started in evaluating these changes. fyi
https://www.journalofaccountancy.com/news/2018/jun/supreme-court-sales-t...
"The U.S. Supreme Court held that states can assert nexus for sales and use tax purposes without requiring a seller’s physical presence in the state. The decision in South Dakota v. Wayfair, Inc., et al, No. 17-494 (U.S. 6/21/2018)"
Please note: this short blog is merely a "heads up" & fyi... as my CPA firms' tax services do not include sales tax issues or reporting (only federal/oregon income taxes). Please contact your web administrator, online store facilitator, or the Department of Revenue in the state and/or locality your customers reside in... for information specific to your business activity & any sales tax collection or reporting requirements. Garland