Economic Nexus Threshold by State: Your 2026 Guide to State Tax Thresholds
- Read & Associates
- Feb 27
- 18 min read
The reality of modern U.S. sales tax really boils down to the economic nexus threshold by state. These are the specific rules that determine if your business—regardless of its physical location—has to start collecting sales tax. While the most common triggers are $100,000 in annual sales or 200 separate transactions, you'll find that the rules can change quite a bit as you go from one state to the next.
What Is Economic Nexus and How Does It Affect Your Business
At its core, economic nexus is a legal concept that says if your business has a significant enough economic connection to a state, you're on the hook for collecting and remitting its sales tax. This is true even if you don't have a single office, employee, or warehouse there.
This whole idea was cemented by the landmark 2018 Supreme Court case, South Dakota v. Wayfair. That decision threw out the old rule that required a "physical presence" for a business to have a sales tax obligation. Overnight, the game changed for e-commerce stores, SaaS companies, and anyone else selling remotely into different states. Your sales volume, not your physical footprint, is now what matters most.
Key Triggers for Economic Nexus
When states look at your economic activity, they're almost always focused on two things:
Sales Revenue: The total dollar amount you've sold into a state over a set period, which is typically the last calendar year or the current one.
Transaction Volume: The total number of individual sales you've made into that same state during that period.
Let's say a state sets its threshold at $100,000 in sales or 200 transactions. You only need to meet one of those to establish nexus. You could have just 150 sales that total $150,000, and—boom—you have nexus. Or, you could have 300 different sales that only add up to $15,000, and you'd still have nexus. This is why businesses selling high volumes of low-cost items really need to watch that transaction count.
The $100,000 sales threshold is by far the most common standard across the country. After the Wayfair decision, almost every state with a sales tax adopted it. But it's not universal. Major markets like California, Texas, and New York have much higher thresholds—$500,000—which creates different layers of compliance for sellers. You can see how these rules are applied across the country on worldpopulationreview.com.
Once you cross a state's economic nexus threshold, the clock starts ticking. You're legally required to register for a sales tax permit there and then start collecting and remitting sales tax on all your taxable sales into that state. For a deeper dive into what nexus means for your day-to-day operations, check out our guide on the core concepts of sales tax nexus.
State-by-State Economic Nexus Thresholds: A Quick Guide
Need a quick answer? This section is your go-to for a scannable overview of economic nexus thresholds across all the states. You can use this as a starting point to quickly compare sales and transaction requirements before diving into the more detailed state-by-state breakdown later in the guide.
First, to give you a bird's-eye view, here's a look at the most common sales thresholds you'll encounter.
As the infographic shows, the $100,000 sales threshold has become the most common standard adopted by the majority of states. However, you'll notice that some of the largest states by population and economy, like California and Texas, have set a much higher bar at $500,000.
Remember, the sales or transaction number is just one piece of the puzzle. Each state's entry in our full guide provides the crucial context you need, like the specific measurement period (is it the previous or current calendar year?) and other special rules, such as how marketplace facilitator sales are treated. Think of this section as your quick-reference map before you explore the terrain of each state's specific laws.
A State-by-State Breakdown of Economic Nexus Laws
This is where the rubber meets the road. Getting a handle on U.S. sales tax compliance means digging into each state's specific rules, and frankly, they're all a little different. This guide is your single source of truth, breaking down exactly what triggers economic nexus in every state that has a sales tax.
Below, you'll find the specific sales and transaction thresholds, the time frame each state looks at (the "measurement period"), and any unique rules you need to know. We'll also cover the nitty-gritty details, like whether marketplace sales count toward your total. Think of this as your reference manual for staying compliant as you grow.
Alabama
Alabama gives businesses a bit more breathing room than most states, setting its sales threshold quite high. This is a real advantage for sellers who are just starting to see sales pick up in the state.
Sales Threshold: $250,000
Transaction Threshold: None
Measurement Period: Previous calendar year
Effective Date: October 1, 2018
The state only looks at your gross retail sales from the prior calendar year. Here’s a key detail: Alabama excludes sales made through a marketplace facilitator (like Amazon or Etsy) when you're calculating your total. Only your direct sales to customers in Alabama matter for this threshold.
Alaska
This one's a bit of an outlier. Alaska has no statewide sales tax, but it does allow local areas—cities and boroughs—to charge their own. A coalition of these local jurisdictions got together and created a single, unified set of economic nexus rules.
Sales Threshold: $100,000
Transaction Threshold: None (The 200-transaction rule was repealed, effective January 1, 2025)
Measurement Period: Previous or current calendar year
Effective Date: Varies by locality, starting April 1, 2020
Your total gross sales from all channels, including marketplaces, count toward that $100,000 threshold. If you cross it, you'll need to register with a central body, the Alaska Remote Seller Sales Tax Commission, and start collecting for all the member jurisdictions.
Arizona
Arizona wants you to keep an eye on your sales activity from both the current and the previous calendar year. This gives you a slightly wider, rolling window to monitor.
Sales Threshold: $100,000
Transaction Threshold: None
Measurement Period: Previous or current calendar year
Effective Date: October 1, 2019
The threshold is based on your gross sales. But, much like Alabama, Arizona specifically excludes sales made through a marketplace facilitator from your nexus calculation. This is a huge deal for UK sellers who do most of their U.S. business through platforms like Amazon.
Arkansas
Arkansas is one of the states that's stuck with a dual threshold. That means you can trigger nexus in one of two ways: either by hitting a certain sales revenue or by making a certain number of sales.
Sales Threshold: $100,000
Transaction Threshold: 200 separate transactions
Measurement Period: Previous or current calendar year
Effective Date: July 1, 2019
The threshold here is based on your taxable sales, and any sales made through a marketplace are excluded from your calculation. Pay close attention to that 200-transaction limit if you sell a lot of low-cost items—you could hit it long before you get close to the sales revenue number.
California
Given its massive economy, it's no surprise that California set a much higher threshold. This was a deliberate move to avoid putting a heavy compliance burden on smaller businesses.
Sales Threshold: $500,000
Transaction Threshold: None
Measurement Period: Previous or current calendar year
Effective Date: April 1, 2019
California’s hefty $500,000 threshold applies to your total gross sales of tangible personal property delivered into the state. And this is a big one: this total includes all sales made through marketplace facilitators. Even if Amazon is collecting and remitting the tax on those sales, the revenue still pushes you closer to that nexus threshold.
Colorado
Colorado’s rules have changed over time. The state recently dropped its transaction-based threshold, which definitely simplifies things for remote sellers.
Sales Threshold: $100,000
Transaction Threshold: None (The 200-transaction rule was repealed in 2019)
Measurement Period: Previous or current calendar year
Effective Date: June 1, 2019
The $100,000 threshold is based on your retail sales. And like a growing number of states, Colorado excludes sales made through a marketplace when you're tallying up your numbers. This focus on direct sales makes it much clearer what you’re on the hook for.
Connecticut
Connecticut is one of the toughest states for nexus. Why? Because you have to meet both a sales and a transaction threshold to trigger an obligation.
Sales Threshold: $100,000
Transaction Threshold: AND 200 separate transactions
Measurement Period: 12-month period ending September 30
Effective Date: December 1, 2018
Important Distinction: Notice the "and" here. Most states use "or," but Connecticut requires you to exceed $100,000 in gross receipts and make 200 or more retail sales. To top it off, sales made through marketplaces are included in this calculation.
District of Columbia
The nation's capital also uses a dual threshold, giving you two ways to establish an economic tie to the District.
Sales Threshold: $100,000
Transaction Threshold: 200 separate transactions
Measurement Period: Previous or current calendar year
Effective Date: January 1, 2019
Your total retail sales, including anything sold through a marketplace, count toward these thresholds. You only need to hit one of them—either the sales number or the transaction count—and you'll have a registration requirement.
Florida
Florida was fashionably late to the economic nexus party, but its rules are now fully in effect for remote sellers.
Sales Threshold: $100,000
Transaction Threshold: None
Measurement Period: Previous calendar year
Effective Date: July 1, 2021
The threshold is based on taxable sales of tangible personal property. An important rule for marketplace sellers is that Florida excludes sales facilitated by a marketplace from your calculation, which simplifies tracking quite a bit.
Georgia
Georgia sticks with a dual threshold, so it's essential to keep an eye on both your total revenue and the number of individual sales you're making into the state.
Sales Threshold: $100,000
Transaction Threshold: 200 separate transactions
Measurement Period: Previous or current calendar year
Effective Date: January 1, 2019
These thresholds are based on gross sales of tangible personal property. However, sales made via marketplaces are excluded from your total. Hitting either the $100,000 mark or the 200-transaction count will create a nexus obligation.
Hawaii
Hawaii's nexus law covers a wide range of sales and requires sellers to watch both their revenue and their transaction count.
Sales Threshold: $100,000
Transaction Threshold: 200 separate transactions
Measurement Period: Previous or current calendar year
Effective Date: July 1, 2018
The state’s thresholds are based on gross sales, and that total includes sales made through a marketplace facilitator. If your combined direct and marketplace sales top either of those limits, you're required to register.
Idaho
Idaho keeps it simple with a straightforward, sales-only threshold. This makes nexus monitoring much easier for many businesses.
Sales Threshold: $100,000
Transaction Threshold: None
Measurement Period: Previous or current calendar year
Effective Date: July 1, 2019
Your threshold is calculated based on your gross sales into the state. This number includes sales made through marketplace platforms, so make sure you’re adding up all your sales channels to see if you've met the threshold.
Illinois
Illinois recently streamlined its nexus rules by getting rid of its transaction threshold—a welcome change for anyone selling high-volume, low-cost products.
Sales Threshold: $100,000
Transaction Threshold: None (The 200-transaction threshold was repealed effective January 1, 2026)
Measurement Period: Rolling 12-month period
Effective Date: October 1, 2018
Nexus is based on your retail sales. Critically, sales made through a marketplace are excluded from the calculation, meaning you only need to track sales from your own website or other direct channels.
Indiana
Indiana also moved away from a transaction-based trigger, leaving just a single revenue threshold for remote sellers to worry about.
Sales Threshold: $100,000
Transaction Threshold: None (The 200-transaction threshold was repealed in 2024)
Measurement Period: Previous or current calendar year
Effective Date: October 1, 2018
The $100,000 is based on gross sales. For sellers using platforms like Amazon, it's good to know that Indiana excludes marketplace-facilitated sales from this calculation.
Iowa
Iowa simplified its law down to a single sales threshold, and it requires you to include all your sales channels in the calculation.
Sales Threshold: $100,000
Transaction Threshold: None
Measurement Period: Previous or current calendar year
Effective Date: January 1, 2019
The threshold is based on your gross sales, and this total includes sales made through marketplaces. This means UK sellers need to combine their direct e-commerce sales with their Amazon, Etsy, or other marketplace sales to get an accurate picture of their nexus status in Iowa.
Kansas
Kansas has a clean, revenue-only threshold, which makes it much simpler for remote sellers to track their obligations.
Sales Threshold: $100,000
Transaction Threshold: None
Measurement Period: Previous or current calendar year
Effective Date: July 1, 2021
This threshold is based on your total gross sales into the state. All your sales, including those made through a marketplace facilitator, count toward that $100,000 limit.
Kentucky
Kentucky uses a dual threshold, so you have to track both your total revenue and the number of individual transactions you make.
Sales Threshold: $100,000
Transaction Threshold: 200 separate transactions
Measurement Period: Previous or current calendar year
Effective Date: October 1, 2018
The thresholds are based on gross sales, and that includes sales made on marketplace platforms. You'll establish nexus if you meet either the sales or the transaction requirement.
Louisiana
Louisiana streamlined its rules by dropping its transaction-based trigger, which is a big help for sellers with a high volume of individual sales.
Sales Threshold: $100,000
Transaction Threshold: None (The 200-transaction threshold was repealed in 2023)
Measurement Period: Previous or current calendar year
Effective Date: July 1, 2020
The $100,000 threshold is based on retail sales. Crucially, Louisiana excludes sales made through a marketplace facilitator, so only your direct-to-consumer sales count toward this limit.
Maine
Maine is another state that moved to a sales-only threshold to make life easier for remote sellers.
Sales Threshold: $100,000
Transaction Threshold: None (The 200-transaction threshold was repealed in 2022)
Measurement Period: Previous or current calendar year
Effective Date: July 1, 2018
This threshold is based on gross sales. For businesses that sell across multiple channels, it's important to know that Maine excludes marketplace-facilitated sales from the calculation.
Maryland
Maryland continues to use a dual-threshold system, which means you have to stay on top of both your sales revenue and your transaction counts.
Sales Threshold: $100,000
Transaction Threshold: 200 separate transactions
Measurement Period: Previous or current calendar year
Effective Date: October 1, 2018
The state looks at your gross sales to determine nexus, and this total includes sales made through marketplace platforms. If you cross either the $100,000 mark or the 200-transaction count, you have an obligation to register.
Massachusetts
Massachusetts keeps it simple with a sales-only threshold, which takes a lot of the guesswork out of nexus calculations for remote businesses.
Sales Threshold: $100,000
Transaction Threshold: None
Measurement Period: Previous or current calendar year
Effective Date: October 1, 2019
The threshold is based on gross sales, but it excludes sales that are facilitated by a marketplace. That means you only need to keep track of your direct sales to customers in Massachusetts.
Michigan
Michigan is another state with a dual threshold, applying to both sales revenue and the number of individual transactions.
Sales Threshold: $100,000
Transaction Threshold: 200 separate transactions
Measurement Period: Previous calendar year
Effective Date: October 1, 2018
Your gross sales, including any sales made through a marketplace, count toward these thresholds. Meeting either of these criteria is enough to establish economic nexus in the state.
Minnesota
Minnesota’s dual threshold means you have to track your sales activity pretty closely to stay compliant.
Sales Threshold: $100,000
Transaction Threshold: 200 separate transactions
Measurement Period: Rolling 12-month period
Effective Date: October 1, 2018
The $100,000 threshold is based on retail sales. All of your sales, including those made through a marketplace, must be counted when you're checking to see if you have met either the sales or transaction threshold.
Mississippi
Much like Alabama, Mississippi set a higher sales threshold, giving smaller sellers more room to grow before they have to worry about nexus.
Sales Threshold: $250,000
Transaction Threshold: None
Measurement Period: Rolling 12-month period
Effective Date: September 1, 2018
The threshold is based on gross sales. For UK businesses that rely on marketplaces, it’s important to know that Mississippi excludes marketplace-facilitated sales from your total.
Missouri
Missouri was the very last state with a sales tax to pass an economic nexus law, finally bringing the entire country under the Wayfair framework.
Sales Threshold: $100,000
Transaction Threshold: None
Measurement Period: Rolling 12-month period
Effective Date: January 1, 2023
The state's threshold is based on gross sales of tangible personal property. This calculation includes sales from all your channels, including marketplaces.
Note: We haven't listed states like Delaware, Montana, New Hampshire, and Oregon because they don't have a statewide sales tax and, therefore, no economic nexus laws for sales tax.
How to Calculate Sales and Transaction Thresholds
When you're trying to figure out if you have economic nexus in a particular state, you're usually looking at two potential triggers: your total sales revenue and your number of separate transactions. The most common benchmark you'll see is a $100,000 sales threshold, but many states also have (or had) a second trigger of 200 separate transactions. The key thing to remember is that you typically establish nexus by hitting either one of these thresholds, not both.
The dual-trigger system has always been a bit tricky, especially for businesses selling low-cost items. Imagine someone selling stickers or craft supplies online. They could easily hit the 200-transaction mark with just a few thousand dollars in actual revenue, suddenly finding themselves on the hook for a complex new tax system. On the flip side, a software business could make one single $90,000 sale into a state and walk away without any sales tax obligation.
The Shift Away from Transaction Counts
Thankfully, states are starting to recognize this imbalance. We're seeing a clear trend of states dropping their transaction-based thresholds entirely. It's a practical move that simplifies compliance for everyone, letting businesses focus on the one metric that really matters: gross revenue. After all, total sales volume is a much better indicator of a company's real economic footprint in a state.
This change has been happening steadily since around 2019. States that originally set up dual triggers to cast a wide net soon realized the administrative headache it created for small businesses and their own tax agencies. South Dakota, for example, got rid of its transaction threshold in 2023, and others like Utah (2025) and Illinois (2026) are following. By early 2026, fewer than 15 states will still be using a transaction count. For sellers outside the U.S., like those in the UK, this shift makes tracking the economic nexus threshold by state a whole lot simpler. You can find more background on this legislative shift on Wikipedia.
What Sales to Include in Your Calculation
This is where things can get a little complicated, because every state has its own definition of what counts toward the threshold. Before you start running the numbers, you need to know exactly which sales to include.
Here are the main variations you’ll run into:
Gross Sales vs. Taxable Sales: Does the state want you to count every dollar you made (gross sales), or only the revenue from sales of taxable products and services?
Marketplace Sales: In many states, you have to include sales made through platforms like Amazon or Etsy in your total, even if the marketplace is collecting and remitting the tax for you.
Exempt Sales: Depending on the state's rules, sales to exempt organizations (like nonprofits or resellers) might still count toward your total threshold, even though no tax was collected on them.
Navigating Measurement Periods and Registration Deadlines
Knowing if you've crossed an economic nexus threshold by state isn't just about your sales figures; the timing is just as crucial. States use different "measurement periods" to look at your sales activity, and you absolutely have to understand these to stay compliant.
The most common measurement periods are the previous calendar year or the current calendar year. If a state uses the "previous calendar year," it's looking at your total sales from January 1 to December 31 of the year before. If it uses the "previous or current calendar year," you have to watch your sales in both periods. Cross the threshold mid-year, and you've got nexus right then and there.
Understanding Different Measurement Periods
While a simple calendar year seems straightforward, some states have unique rules that require a closer look. This patchwork of evaluation windows means a UK e-commerce business could trigger nexus in one state months before another, even if the sales numbers are identical.
Rolling 12-Month Periods: Some states, like Illinois and Minnesota, use a "rolling" 12-month period. This means you’re always looking back at the last 12 months of sales, not just a fixed calendar year. It's a continuous monitoring process.
Specific 12-Month Periods: Connecticut is a great example of an outlier. It measures sales for the 12-month period ending on September 30 each year.
Prior Four Quarters: Vermont calculates nexus based on sales from the prior four completed calendar quarters, which is yet another twist on the rolling lookback concept.
These different periods can get complicated, fast. The specific window for seeing if you've hit an economic nexus threshold varies so much that it can be a real headache for businesses selling into multiple states. The Sales Tax Institute offers a fantastic comprehensive economic nexus guide that dives deeper into these state-by-state rules.
Registration Deadlines After Crossing a Threshold
Once you figure out you have nexus, the clock starts ticking on your next step: registering for a sales tax permit. Unsurprisingly, the deadlines for this vary just as much as the measurement periods. If you miss the deadline, you could be on the hook for penalties and back taxes.
For example, Ohio expects you to register the very next day after you exceed the threshold. On the other hand, states like South Carolina and North Carolina give you a bit more breathing room, requiring registration on the first day of the second calendar month after you establish nexus.
This is exactly why you need to be monitoring your sales all the time. The moment you cross a threshold, you have to be ready to act. Knowing how to get registered is a critical piece of the puzzle. If you need a hand with that, take a look at our guide on how to get a sales tax ID number for your UK business in the US.
A Step-by-Step Compliance Plan for Remote Sellers
Realizing you've crossed an economic nexus threshold by state is just the beginning. The real work starts now. Turning what feels like a massive legal headache into a manageable process is all about having a solid, step-by-step plan.
Following a clear compliance plan helps you hit every critical requirement, from registering in the right states to filing your returns on time. This is how you avoid the common traps of late filings and unexpected penalties. For those of us based in the UK, a clear checklist is even more important as we navigate unfamiliar state tax agencies from thousands of miles away.
1. Monitor Your Sales Across All Channels
Before you can do anything else, you need a crystal-clear picture of your sales activity. This means tracking your gross sales numbers in every single state where you make sales—not just looking at your total company revenue.
Your tracking needs to pull in sales from everywhere you operate. That includes your own e-commerce site, any third-party marketplaces like Amazon or Etsy, and any other channel you use. And remember, a lot of states insist you include marketplace sales when you're calculating your threshold, even if the marketplace itself is remitting the tax. Think of this constant monitoring as your early warning system for compliance.
2. Register for a Sales Tax Permit
The moment your tracking shows you've hit a state's threshold, it’s time to act. You need to register for a sales tax permit with that state’s department of revenue, which is the official step that authorizes your business to collect sales tax.
Typically, you'll need to provide standard business details like your legal name, Federal Employer Identification Number (EIN), and business address. The specifics vary from state to state, so it's vital to follow their instructions to the letter. You can get a full rundown by checking out our guide on what sales tax nexus means for UK founders in our detailed guide.
Crucial Tip: Never start collecting sales tax until you have that official permit in hand. In most states, collecting tax without being registered is illegal and can get you into a lot of trouble.
3. Collect and Remit Sales Tax Accurately
Once your permit is active, you're responsible for calculating and collecting the correct sales tax on every taxable sale within that state. This is rarely as simple as applying one flat rate; tax rates often change based on the city, county, or even a specific local taxing district.
You'll then need to send all the tax you've collected to the state government on a set schedule. This is usually monthly, quarterly, or annually, and the frequency depends on how much you sell.
4. Maintain Ongoing Compliance and Reporting
Sales tax is not a "set it and forget it" task. Staying compliant requires consistent effort to keep your business in good standing.
Here's what that looks like long-term:
File returns on time: You must file a sales tax return for every single filing period. This is true even if you had zero sales—in that case, you'll file what’s called a "zero-dollar" return.
Keep tax rates updated: Sales tax rates can and do change. You need a reliable system to make sure your calculations are always based on the latest rates.
Renew your permits: Some states require you to periodically renew your sales tax permit, so keep an eye on those expiration dates.
Following these four steps gives you a reliable framework to manage your sales tax obligations with confidence and, most importantly, correctly.
Frequently Asked Questions About Economic Nexus
As you dig into the state-by-state details of economic nexus, you're bound to have some questions. Here are straightforward answers to the things we hear most often from remote sellers.
Do Sales on Marketplaces Like Amazon Count Toward the Threshold?
Yes, they absolutely do. In nearly every state, your gross sales from all channels—and that definitely includes marketplaces like Amazon, eBay, or Etsy—are counted when determining if you’ve met the economic nexus threshold. This is a critical detail that catches a lot of sellers by surprise.
Even though a platform is collecting and remitting the sales tax on your behalf because of Marketplace Facilitator laws, those sales are still your sales. You have to track them. Hitting a threshold means you have a legal obligation to register in that state, and in many cases, you'll need to file returns—even if they're zero-dollar returns showing only marketplace sales.
What Are the Penalties for Not Registering After Meeting a Threshold?
Ignoring your nexus obligations can get expensive, fast. States don't mess around here. If you fail to register and collect sales tax after you've established nexus, they can hit you with a bill for all the back taxes you should have collected.
On top of that, they'll add on some pretty hefty penalties and interest. This can create a massive, unexpected liability that can seriously harm your business. State auditors are actively looking for non-compliant remote sellers, so being proactive isn't just a good idea—it's essential. If you find you've had nexus for a while, looking into a Voluntary Disclosure Agreement (VDA) can sometimes help reduce the penalties.
Key Takeaway: The consequences of non-compliance are severe. A state can hold your business liable for all uncollected taxes, plus interest and penalties, dating back to when nexus was first established.
Does Economic Nexus Apply to Digital Products and Services?
This is where things get really murky, as the answer changes dramatically from one state to the next. Economic nexus laws always cover sales of physical goods (tangible personal property), but how they treat digital products, Software-as-a-Service (SaaS), and other services is all over the map.
Some states tax a huge range of digital goods and services, while others tax very few, if any. Your first step is to figure out if what you sell is even considered taxable in a particular state. Then, you have to track whether you meet that state’s economic nexus threshold. It's a two-part puzzle that adds another layer of complexity to your compliance work.
Keeping up with sales tax nexus across dozens of states is a complicated and draining task. Set Up Stateside provides specialized accounting and tax compliance services built for UK entrepreneurs. We help you monitor thresholds, get registered the right way, and stay compliant with both the IRS and state tax authorities. You can focus on growing your business instead of getting bogged down by tax law. Learn how we can simplify your U.S. tax obligations today.
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