- May 12, 2026
- Posted by:
- Category: Economic Nexus
Who This Guide Is For: Online sellers, marketplace sellers, and multistate ecommerce businesses that need to know when sales tax “economic nexus” applies in 2026, how thresholds work by state, and what to do next to register and collect correctly.
Key Takeaways
- Economic nexus is triggered by crossing a state’s sales and/or transaction threshold, typically measured over the prior or current calendar year.
- Most states use a $100,000–$500,000 sales threshold; many have removed transaction-count thresholds, but a few still use them.
- Marketplace facilitator rules can shift collection duties to the marketplace, but remote sellers may still need registration for direct (off-marketplace) sales.
- Crossing a threshold creates an obligation to register, collect, and remit—often starting soon after the threshold is exceeded (timing varies by state).
How to Tell If You Have Economic Nexus (Fast Decision Path)
Step 1: Identify what you sell and where you ship
Economic nexus applies to taxable sales shipped into a state, and in many states it can include certain exempt sales in the measurement. Start with where your customers receive the product (destination), not where you ship from.
Step 2: Separate marketplace sales from direct sales
If you sell on marketplaces (for example, large third-party platforms), the marketplace may be required to collect and remit in many states. That does not automatically eliminate your responsibilities: some states still require registration for your direct website sales, and some still require reporting even when the marketplace collects.
Step 3: Measure threshold activity over the correct period
States commonly measure by the previous calendar year or current calendar year, but the “lookback” rule is not identical everywhere. Your internal report should be able to show (1) gross sales shipped into the state, (2) number of transactions into the state (if applicable), and (3) marketplace vs direct channels.
Step 4: Confirm when collection must start
Some states expect you to begin collecting immediately after you exceed the threshold; others tie the start date to the next month, quarter, or a specified time after registration. You should plan for lead time to register and configure checkout tax collection.
Ready to get started? Apply online now.
2026 Economic Nexus Thresholds by State (What Counts and What Triggers)
The table below is designed to help you quickly compare common threshold structures. “Sales” generally means gross receipts from sales into the state; “Transactions” means the count of separate sales/shipments. Rules vary on whether exempt sales count and how marketplace sales are measured, so use the table as a working checklist and confirm the details for your specific product types and channels.
Comparison Table: Common Threshold Models
| State Group / Example States | Typical Trigger | Transactions Test? | Common Lookback Window | Notes to Watch |
|---|---|---|---|---|
| $100,000 sales threshold states (many) | $100,000 in sales into the state | Often removed | Prior or current calendar year | Some include exempt sales in the measurement; marketplace sales may still count toward nexus even if marketplace collects. |
| $200,000 sales threshold states (select) | $200,000 in sales into the state | Usually no | Prior or current year | Watch for “gross receipts” definitions and whether shipping/handling is included in the sales base. |
| $500,000 sales threshold states (notable examples) | $500,000 in sales into the state | No | Current or prior year | Often paired with more detailed rules on marketplace sellers and affiliate/referral relationships. |
| Sales OR transactions states (fewer each year) | Sales threshold OR transaction threshold | Yes (in some) | Typically prior/current year | Transaction counts can create nexus for low-dollar items; returns and canceled orders may be treated differently by state. |
State-by-State Threshold Highlights for Online Sellers
States commonly associated with a $100,000 sales threshold
Many states use a $100,000 sales threshold as the primary trigger. In these states, your most common compliance issue is undercounting sales because exempt items, shipping, or marketplace sales are excluded incorrectly from your measurement. If you are near $100,000 into multiple states, prioritize monthly monitoring and set an internal “early warning” at $80,000–$90,000.
States that historically used transaction counts (what to do if your state still uses them)
Where a transaction count still matters, it can be triggered quickly by small orders. The typical mistake is treating multiple items in one checkout as multiple transactions (usually it is one), or treating a split shipment as multiple transactions (state treatment can vary). If you ship subscriptions or recurring orders, use your order data to map each billed order to the destination state and count accurately.
States with higher thresholds (why you still should not ignore them)
Higher-threshold states can still create nexus unexpectedly for businesses with a few large customers, B2B orders, or high average order values. The most common failure is waiting until year-end to check totals—by then, you may have been collecting late for months.
Example: Marketplace sellers with direct site sales (how nexus is created)
If you sell on a marketplace and also on your own site, treat the channels separately for operational purposes but together for nexus measurement unless the state clearly excludes marketplace sales from the threshold calculation. A frequent misunderstanding is assuming “marketplace collects” means “I have no nexus.” Even if you never need to collect on marketplace orders, you can still be required to register and collect on direct sales once you cross the state’s threshold.
Need state-specific registration help for a sales tax permit? Review California sales tax online registration if you ship into California and need to set up collection.
Need help registering? Start your application.
What “Counts” Toward Thresholds (Avoid the Most Common Measurement Errors)
Gross sales vs taxable sales
Many states measure nexus using gross receipts from sales delivered into the state, not just taxable sales. That means exempt product lines, wholesale-style invoices, and some services may still count toward the threshold even if you do not collect tax on them.
Returns, cancellations, and chargebacks
States vary in how they expect sellers to treat returns in threshold measurement. Operationally, the safest approach is to track both gross and net figures. Use gross to evaluate “did I cross the line,” and use net to support accurate reporting and reconciliation.
Shipping and handling charges
Some states tax shipping/handling in certain scenarios; others do not. Even when shipping is not taxed, it may be included in “gross receipts” for threshold measurement depending on how your invoices are structured. Keep shipping as a separate line item in your system so you can report consistently.
Marketplace sales inclusion
Even when a marketplace facilitator collects tax, your marketplace sales may still be counted for determining whether you have economic nexus. This matters because crossing the threshold can still trigger a registration requirement for your direct sales, and it can affect filing frequency and account setup.
Once You Cross a Threshold: What You Must Do (and When)
Registration
After you exceed a state’s threshold, you generally must register for a sales tax permit (or seller’s permit) before you begin collecting tax. Some states expect registration promptly after the threshold is exceeded; others tie timing to the start of a following period.
Collection setup
Configure your checkout to calculate destination-based tax for that state, confirm product taxability (especially for clothing, food, digital goods, and shipping), and ensure marketplace orders are not double-taxed if the marketplace collects.
Filing and remittance
Filing frequency can be monthly, quarterly, or annual depending on the state and your volume. The typical failure point is missing the first return after registration because the business is still configuring tax settings and assumes no filing is required until sales occur.
Recordkeeping
Maintain transaction-level data by destination state: customer address, date, taxable amount, exempt amount, tax collected, shipping, and channel (direct vs marketplace). This is what you need to answer notices quickly and reconcile filings.
Special Situations Online Sellers Run Into
Digital products and SaaS
Digital goods and SaaS can be taxable in some states and exempt in others, and some states apply different sourcing rules. Economic nexus measurement can still include these receipts even when the product is exempt. If you sell subscriptions, keep clear billing period and customer location records.
B2B and resale certificates
Wholesale/B2B sellers commonly assume they “don’t have sales tax issues,” then cross an economic nexus threshold through high invoice totals. Even when sales are for resale, nexus can still be triggered; your compliance task becomes collecting and storing valid resale documentation and understanding which states require specific forms.
Fulfillment by third parties
Storing inventory in a state (including through a fulfillment provider) can create physical nexus regardless of economic thresholds. If you use third-party fulfillment, inventory movement reports can be as important as sales reports.
Example: Small sellers shipping into North Dakota
If your customer base includes North Dakota, you should track your delivered sales into the state and be ready to register when you exceed the applicable nexus threshold and begin