Compliance7 min
Sales Tax Nexus: When Your Business Must Collect in Other States
Economic nexus thresholds, marketplace facilitator rules, and how multi-state sellers stay compliant without payroll or invoicing modules.
Physical vs economic nexus
Physical presence (employees, inventory, events) still creates obligation. After South Dakota v. Wayfair, most states enforce economic nexus — typically $100,000 in sales or 200 transactions in a rolling 12 months.
Registration and filing
Once nexus is established, register with each state's revenue department, collect tax at the correct rate, and file returns (monthly, quarterly, or annual depending on volume).
Bookkeeping impact
Track gross sales and shipping by destination state. Even without built-in invoicing, revenue reports and bank deposits by customer location support nexus analysis with your CPA.
Organize revenue by state for nexus review