When you trigger economic nexus, you immediately have a legal obligation to register, collect, and remit sales tax. 

The challenge is that every state has different rules that define when economic nexus is triggered. Some states have a transaction count threshold, while others have a dollar amount. No one's going to tell you when you've crossed the line: you're expected to know. 

Missing a threshold can open you up to owing penalties, back taxes, and interest that can impact your margins. Our 2026 sales tax nexus guide is organized by state to help you know when compliance kicks in. 

Economic nexus thresholds change frequently, and tracking them manually across 50 states is a recipe for costly mistakes. The states are monitoring your sales in real time and expect you to stay compliant. Kintsugi automates nexus monitoring across every state, showing you exactly where you have exposure and alerting you when you cross a threshold. No spreadsheets. No guesswork. No penalties. Just real-time visibility and automated compliance so you can focus on growth instead of tracking tax rules. 

Find all U.S. jurisdictions and their sales tax nexus thresholds below. Remember, states track nexus by total sales or transactions, where applicable – whichever threshold is reached first.