Sales Tax Nexus Calculator
An instant, free tool for e-commerce sellers, SaaS companies, and digital businesses to check their economic nexus status across the United States.
Nexus Determination Tool
Enter your sales data to check your nexus status.
About the Sales Tax Nexus Calculator
The Sales Tax Nexus Calculator helps US-based and international ecommerce sellers determine where they are legally required to collect and remit sales tax. With different states having unique thresholds for remote and in-state sellers, understanding your sales tax nexus is critical for compliance.
What Is Sales Tax Nexus?
Sales tax nexus refers to the connection between your business and a US state that requires you to collect and remit sales tax. Nexus can be created through physical presence (offices, warehouses, employees) or economic presence (sales or transaction thresholds).
How to Use the Sales Tax Nexus Calculator
- Select the US state where you sell products or services.
- Enter your total annual sales revenue and number of transactions in that state.
- Click “Calculate” to check if you’ve crossed the state’s economic nexus threshold.
- The result will show whether you are required to register and collect sales tax in that state.
Why This Tool Matters
Since the Wayfair vs. South Dakota (2018) ruling, states can require out-of-state sellers to collect tax based on economic thresholds. This calculator helps you quickly identify potential tax obligations across different US states — saving you time and avoiding penalties.
Example Sales Tax Nexus Thresholds
- California: $500,000 in sales
- Texas: $500,000 in sales
- Florida: $100,000 in sales
- New York: $500,000 in sales and 100 transactions
- Washington: $100,000 in sales
Note: Thresholds vary and are subject to change. Always verify with the official state tax authority.
Common Nexus Triggers
- Owning property or inventory in a state
- Hiring remote employees
- Crossing economic thresholds (sales or transaction count)
- Using third-party fulfillment centers like Amazon FBA
- Temporary in-person sales (trade shows, pop-ups)
Tips & FAQs
Pro Tips
- Physical presence automatically triggers nexus. If you have inventory in a state (e.g., through Amazon FBA), you have nexus there, regardless of your sales volume.
- Use the "Reporting Period" selector to check both the previous calendar year and the last 12 rolling months, as states use different measurement periods.
- If you are approaching the threshold in a state, it is wise to register for a sales tax permit proactively to avoid penalties for late filing.