Whether your online business is a brand-new start-up or an established business who is expanding into the online marketplace, eCommerce sales tax is merely one of the many responsibilities an online business needs to be concerned with handling correctly. eCommerce sales tax used to be more straightforward but has become increasingly complex over time, particularly since 2018. Included in this guide is an introduction to the sales tax requirements for online retailers and answers to some frequently asked questions about eCommerce sales tax.

Do I Need To Charge eCommerce Sales Tax For My Online Business?

The simple answer is…maybe. Whether or not you should be collecting eCommerce sales tax on your online sales depends on two factors:

FACTOR #1: HAVE I ESTABLISHED SALES TAX NEXUS WITHIN A STATE?

How to determine whether you have established sales tax nexus within a state:

Between 1992 and 2018, the nationwide standard for whether a business had established sales tax nexus hinged on whether the business had a “physical presence” within a state. Things were relatively simple then. On June 21, 2018 in its South Dakota v. Wayfair, Inc. ruling, the U.S. Supreme Court overturned the 1992 Quill case that established that “physical presence” principle. We’ve written extensively on the Wayfair case (if you’d like to read more click here) because of the seismic shift in caused in the world of sales tax, but to summarize briefly here, the Wayfair case changed the sales tax nexus standard from “physical presence” to “economic presence.” Now, a business that has either a physical presence or a sufficient economic presence within a state has established sales tax nexus, and all the collection and reporting obligations that go along with that, within that state’s borders.

What amount of eCommerce sales establishes “economic nexus” within a state?

Like everything in sales tax, the answer is “it depends.” The rules of “economic nexus” vary by state, although most have clustered around the thresholds first established by South Dakota (and essentially OK’ed by the U.S. Supreme Court in its June 2018 decision) of $100,000+ in sales or 200+ separate transactions per year. Of course, there are outliers. The way I think about it is that the most populated states, and those with the largest tax revenue bases, have established higher thresholds than their less populated (and more revenue-starved) counterparts. For example, the “economic nexus” threshold in California is $500,000+; in New York it is $500,000+ and 100+ transactions; and in Texas it is $500,000+. The complexities are too detailed to summarize neatly within this article, but we provide a table in our sales tax nexus studies for eCommerce retailers that summarizes all of this information by state as well as providing the date each state enacted its economic nexus policy. If you have concerns, please reach out to us for additional information and a free consultation.

FACTOR #2: ARE THE PRODUCTS I’M SELLING SUBJECT TO SALES TAX WITHIN A STATE?

How to determine what products are taxable:

Even in states where you have established nexus, you will find that some products are subject to sales tax while others are not. You would not need to collect any eCommerce sales tax on the sale of non-taxable items. The rules of what is and is not taxable varies from state-to-state because each state’s Legislature and Department of Revenue establish the rules about product taxability within their state. What is subject to sales tax and what isn’t seldom makes sense and often depends on special interests, lobbyists and other non-logical bases.

For example, here are some popular categories of items frequently sold by online retailers and their corresponding taxability in 5 states:
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OK, so maybe the last item in this list is not an example of a popular, frequently sold online product, but nonetheless it is a great illustration of the seemingly random taxability decisions made by states.

RECAP & SUMMARY OF ECOMMERCE SALES TAX OVERVIEW:

Compliance with eCommerce sales tax requirements is more complex under the “economic nexus” standard implemented by the U.S. Supreme Court in its 2018 Wayfair decision. States have implemented different thresholds for what constitutes “economic nexus” and a number of those thresholds have changed, sometimes on multiple occasions, since 2018. To determine if your online store should be collecting sales tax on its sales, you must first determine if your business has established “economic nexus” within a state. If so, then you must determine whether the goods and items your online store is selling are subject to eCommerce sales tax in that state. There are wide variations in the taxability of items from state-to-state, so one cannot assume that a product that is exempt from sales tax in State #1 is also exempt from sales tax in State #2, etc.

Have a question? Contact Aaron Giles.