Economic nexus is not a single nationwide threshold. A dependable state-by-state review combines physical presence, each state’s current sales definition, measurement period, exclusions, effective date, marketplace treatment, and required collection start date.
Key takeaways
Use current state guidance instead of a copied threshold spreadsheet with no review date.
Determine whether each state measures gross, retail, or taxable sales and how marketplace sales are treated.
Do not rely on a universal 200-transaction test; multiple states have removed transaction thresholds.
Treat physical presence as a separate analysis that can create nexus below an economic threshold.
What economic nexus means after Wayfair
The U.S. Supreme Court’s Wayfair decision removed the rule that physical presence was always required before a state could impose sales-tax collection duties on a remote seller. States responded with economic nexus laws based on in-state sales, transactions, or both.
Wayfair did not create one nationwide threshold. It also did not eliminate physical nexus. Inventory, personnel, property, events, and other activities can create obligations under separate state rules.
- Test economic and physical nexus independently.
- Monitor all states with destination sales.
- Record the authority and date for every threshold rule.
Why threshold definitions matter
A headline threshold is incomplete without its sales base. A state may count gross sales, retail sales, taxable sales, or another measure. Exempt sales, resale transactions, services, digital products, and marketplace sales may be included or excluded differently.
Measurement periods can use the current year, previous year, rolling periods, or state-specific lookback rules. Some thresholds trigger when sales exceed an amount; others use meet-or-exceed language. These details determine the effective date.
- Store gross, exempt, resale, taxable, and marketplace amounts separately.
- Preserve order count even where no current transaction threshold applies.
- Calculate current and prior-period totals.
Transaction thresholds are changing
Many early economic nexus laws paired a sales amount with 200 transactions. A growing number of states have removed the transaction test; Indiana removed its 200-transaction threshold effective January 1, 2024, and Alaska’s participating local jurisdictions removed transaction thresholds effective January 1, 2025.
This trend reduces burdens for low-value, high-volume sellers, but it also makes old matrices dangerous. The correct approach is a dated state-by-state source table linked to revenue-department guidance.
- Review threshold data at least quarterly.
- Flag rule changes with an effective date.
- Retain historical rules for past-period exposure analysis.
Marketplace sales and threshold monitoring
A marketplace facilitator may collect tax on a facilitated order, but the sale can still count toward a seller’s economic nexus threshold depending on the state. Marketplace inventory can also create physical presence.
Separate “who remits this transaction” from “does this transaction count toward nexus.” Use channel-level reports, marketplace agreements, inventory-location data, and state rules to answer both questions.
- Track marketplace gross sales by destination.
- Obtain facilitator collection documentation.
- Review fulfillment inventory locations.
- Do not double-remit marketplace-collected tax.
A practical nexus monitoring workflow
Create a monthly dashboard by state with current-year and prior-year sales, included transaction counts, physical-presence indicators, registration status, effective dates, and filing frequency. Add warning levels before the threshold so the business has time to validate taxability and register.
When exposure is identified, quantify the period, determine the legal start date, assess voluntary disclosure or remediation options with a qualified adviser, register, configure collection, and add the state to the filing calendar.
- Assign one accountable owner.
- Use state source links, not aggregator summaries alone.
- Set 75%, 90%, and 100% threshold alerts.
- Document the decision even when registration is not required.
Work through a threshold example correctly
Assume a remote seller has direct sales, marketplace sales, exempt wholesale orders, refunds, and separately stated shipping in one state. The correct threshold numerator is not automatically gross cash received. First identify the state’s defined sales base, then apply its marketplace, exempt-sale, refund, service, and period rules to the underlying transactions.
Run both current and prior measurement periods where the state requires them. When the result approaches the threshold, investigate data gaps instead of rounding. A single annual revenue export can conceal the exact crossing date and delay collection.
- Retain the transaction population used in every test.
- Show inclusions, exclusions, and refunds as separate columns.
- Record the first date the threshold was exceeded.
- Apply the state-specific collection timing rule.
Operate a nexus dashboard and change-control process
A useful dashboard shows sales measure, transaction measure when relevant, threshold percentage, physical-presence flags, marketplace share, last review date, source link, owner, status, and next action by state. Alerts at 75% and 90% give registration and engineering teams time to act.
Refresh authority sources on a defined schedule and whenever a state announces a law or administrative change. Store prior rule versions so historic decisions remain explainable. New warehouses, employees, contractors, acquisitions, events, and product launches should automatically trigger an out-of-cycle review.
- Do not overwrite historic threshold logic.
- Require approval for state-status changes.
- Connect registrations to checkout deployment tickets.
- Verify the first collected order and first filed return.
Frequently asked questions
Is economic nexus always $100,000 or 200 transactions?
No. Threshold amounts, sales definitions, periods, and transaction tests vary, and several states have removed transaction-count thresholds.
Do exempt sales count toward economic nexus?
Sometimes. It depends on whether the state measures gross, retail, taxable, or another sales base.
Can marketplace inventory create nexus?
It can create physical-presence concerns even when the marketplace collects tax on facilitated sales.
What data is needed for an economic nexus test?
At minimum: destination state, transaction date, channel, gross and taxable amounts, product or service type, exemption status, refund data, marketplace status, and the legal selling entity.
Does being below an economic threshold mean no nexus?
No. Employees, inventory, offices, contractors, events, or other physical and agency relationships can create nexus independently of remote-sales thresholds.
Official sources
Reviewed against the following primary sources on Aug 8, 2026.