The Highlights
- State sales tax registration should be determined based on your economic nexus.
- Shipping your products to a state does not automatically create an obligation for registration.
- Registration is only required if your ecommerce store crosses thresholds for economic and/or physical nexus in a state.
- Businesses mostly shipping to NOMAD states may also need to register, depending on local sales tax rules
Ecommerce store owners selling to multiple states need to grapple with hundreds of sales tax questions when it comes to compliance. At the top of that list? Figuring out whether shipping creates an obligation for merchants to register in a given state.
Get the right answers your business can depend on and find out when to register for sales tax with this sales tax blog.
Sales Tax Registrationand Ecommerce Stores
45 states (plus the District of Columbia) impose a statewide sales tax on tangible personal property and certain services in the U.S. As a consumption tax, it’s generally calculated based on the destination where the customer is receiving their goods (also known as destination sourcing), as opposed to the location or state where the business is shipping from.
For an ecommerce business, that means tax obligations can extend far, far beyond your home state. Since federal law doesn’t impose a national sales tax, these rules will vary by state, and failing to address these requirements can put your business squarely in line for unexpected fees and liabilities.
The Short Answer: Sales Tax Registration for States Shipped To
Here’s the good news before we elaborate further: sales tax is never triggered by shipping alone. State sales tax registration generally kicks in only when your business establishes a connection (otherwise known as a nexus) in a state.
In other words, simply shipping off a single t-shirt or some furniture worth $60 to Wisconsin won’t put you on the hook for registration. However, if you rack up enough sales or transactions in that state, you will eventually cross the nexus threshold and be obligated to register/collect tax at checkout.
What a Nexus Really Means
Sales tax registration for states shipped to was fairly straightforward before 2018’s South Dakota v. Wayfair decision. If you had a physical presence, such as:
- An office
- Warehouses
- Remote employees
You would have an obligation to collect sales tax there.
Sales tax questions now are instead determined by two types of nexus:
- A physical nexus (mentioned above)
- An economic nexus that is based purely on how much you sell into a state.
Sales Tax Nexus Triggers for Ecommerce Stores
Sales tax nexus triggers are generally pretty consistent across states, but are not identical.
Most states’ sales tax registration rules will use a dual threshold of either $100,000 in gross sales or 200 transactions into the state over the past 12 months. If you hit either one of those, you’ll need to register.
That said, the dual threshold determining sales tax registration for states shipped to is gradually being phased out, with Illinois being the latest to drop its transaction threshold, effective January 1, 2026.
If you’re unsure about the specific rules governing registration in your state, we strongly recommend working with a trusted sales tax expert to build a personalized compliance strategy around your needs.
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States without Statewide Sales Tax Obligations
Five states, also known as the NOMAD states, impose no statewide sales tax at all. These are:
- New Hampshire
- Oregon
- Montana
- Alaska
- Delaware
You don’t necessarily need to worry about when to register for sales tax if most of your sales are going into NOMAD states, since there is no requirement to register for or to collect state-level sales tax.
However, some states, like Alaska, do permit local jurisdictions to impose their own sales taxes, which might create sales tax registration obligations for your business.
How To Determine Your Nexus
If you’re wondering about state sales tax registration, your first step should be to determine whether your business has a nexus in a given state.
Start by examining your sales data. Your ecommerce platform should allow you to generate reports demonstrating gross sales/order counts by state. You’ll need to aggregate those figures to see whether the situation calls for sales tax registration for the states shipped to.
If you do have an obligation, you can start with sales tax filing by first applying for a permit with the concerned state. Remember to review your sales data quarterly to check for proximity to triggers in other states!
Enjoy Hassle-Free Sales Tax Filing for Ecommerce Stores
Sales tax questions are easy to navigate when you’re working with the #1 tax experts on Trustpilot. RJM Tax Exemption’s sales tax experts can help your business stay compliant with multi-state taxes with ongoing support you can rely on. Get started with a free consultation today!
Frequently Asked Questions
Is sales tax registration necessary for every state I ship to?
No. Registration is only really required in states where your business has already established a nexus, whether that’s physical or economic. Shipping an order to a customer in a different state does not automatically create a nexus.
What are state sales tax registration thresholds in 2026?
The general trend right now for economic nexus thresholds is either $100,000 in gross sales or 200 separate transactions over the previous 12 months. Some states, however, have dropped that 200 transaction threshold.
Do digital ecommerce products or services also require sales tax registration?
You might be obligated to register even if your ecommerce store is shipping digital goods/services, depending on the state. Some states tax downloadable/digital products as tangible property, which will count towards nexus thresholds.
