What is Economic Nexus?
When your sales into a state cross a threshold and you suddenly owe sales tax there - even with no office.
Economic Nexus: definition
Since the 2018 South Dakota v. Wayfair decision, states can require out-of-state sellers to collect sales tax based purely on economic activity. Most states set a threshold - commonly $100,000 in sales or 200 transactions in a year - and once you cross it, you must register, collect, and remit. For any business selling across state lines, tracking nexus is now unavoidable.
- Triggered by crossing a state’s sales-dollar or transaction-count threshold
- Common thresholds: $100,000 in sales or 200 transactions per year (varies by state)
- Requires registration, collection, and remittance in that state
- Distinct from physical nexus (office, employee, or inventory in a state)
How Fintra handles it
Fintra monitors sales by state against each state’s economic-nexus thresholds and alerts you as you approach one, so registration happens before liability accrues. Once you have nexus, Fintra calculates the correct rate, collects tax, and supports filing - replacing the manual threshold-tracking spreadsheet most SMBs neglect until it becomes a problem.
Worked example
Frequently asked questions
What triggers economic nexus?
Crossing a state’s economic threshold - typically a dollar amount of sales (often $100,000) or a transaction count (often 200) within a year. Thresholds and rules vary by state, so a multi-state seller must track each one separately.
How is economic nexus different from physical nexus?
Physical nexus comes from a physical connection - an office, employee, or inventory in a state. Economic nexus comes purely from sales volume, created by the Wayfair decision. You can have economic nexus in a state you have never set foot in.
What happens if I ignore economic nexus?
You can owe uncollected back taxes, penalties, and interest in every state where you crossed a threshold and failed to register - a liability that compounds silently. Monitoring thresholds proactively is the only safe approach.
How does Fintra help with sales tax nexus?
Fintra tracks sales by state against each threshold, alerts you before you cross one, and then calculates, collects, and helps remit the correct tax - turning nexus from a lurking liability into a monitored, automated process.
Stay in the loop
One practical finance briefing a week - new guides, checklists, and benchmarks.
See how Fintra handles the numbers behind this term
Fintra is the AI Finance Operating System for SMBs - accounting, planning, payroll, equity, and AI governance on one shared data model, with a named human approving anything consequential. Free to start, no card required.
Talk to us