Deep Dive into Sales Tax Nexus:
Sales tax nexus can be a complicated issue for businesses, particularly those operating across state lines. Here’s a more detailed explanation of the factors that determine it:
Physical Presence:
- Physical locations like offices, warehouses, and stores create a clear nexus for conducting business activities such as sales, inventory storage, or administration within a state.
- Employees/Representatives: Even a single employee or salesperson physically working in a state can create nexus, especially if they’re soliciting sales or interacting with customers.
- Storing inventory within a state, even for fulfillment purposes, may trigger nexus.
- Temporary Presence: While brief activities, such as attending a trade show, may not always establish nexus, some states take into account the frequency and duration of these activities.
Economic Activity:
- Sales Thresholds: Most states have economic nexus laws that include specific thresholds. When a business exceeds these thresholds—either through total sales amount or the number of transactions within a given period (typically one year)—it establishes a nexus. These thresholds can vary significantly: some states set them as low as $100,000 in sales, while others may have higher limits.
- Click-Through Nexus: If your business utilizes an in-state affiliate or marketing partner to generate sales through clicks or referrals, you may establish nexus in that state. This is because the in-state partner essentially creates a virtual presence for your business.
- Using a fulfillment center within a state to deliver products to customers may establish nexus, even if you don’t have a physical store.
- Sales tax nexus applies not only to physical products but also to digital goods and services, such as software downloads and streaming services, when certain economic activity thresholds are met.
Additional Considerations:
- Each state has its own rules and regulations concerning sales tax nexus. Some may have additional factors to consider, so consulting a tax professional knowledgeable about the specific state(s) you operate in is essential.
- Voluntary Collection: Even if you do not have nexus in a state, you may choose to voluntarily collect and remit sales tax to prevent future complications or potential penalties.
- Recent developments in sales tax nexus law are constantly evolving. The 2018 South Dakota v. Wayfair case significantly impacted economic nexus rules, and future judicial decisions or legislative changes could further alter this landscape.
It’s important to be proactive about sales tax nexus. By understanding the relevant factors and consulting with a tax professional, you can ensure your business complies with state regulations and avoid potential tax liabilities.

