Trusted by e-commerce sellers across the US

Know Before You Owe

Automated sales tax nexus monitoring for e-commerce sellers. Connect your store, track all 45+ states, and get alerts before you exceed economic nexus thresholds.

No credit card required. Set up in under 5 minutes.

Everything you need to stay compliant

Stop guessing about sales tax nexus. NexusMonitor handles the monitoring so you can focus on growing your business.

Automatic Threshold Tracking

Connect your sales platforms and we track your sales against every state's economic nexus thresholds in real time.

Multi-Platform Support

Shopify, Amazon, Etsy, WooCommerce — connect all your stores and see your combined nexus exposure.

Early Warning Alerts

Get notified at 50%, 75%, and 90% of each state's threshold — well before you owe anything.

Interactive Nexus Map

See your nexus status across all 45+ states on an interactive US map. Green, yellow, and red at a glance.

Rule Change Monitoring

States change their nexus rules. We monitor all 45+ jurisdictions and alert you when thresholds change.

Registration Guidance

When you do cross a threshold, we tell you exactly what to do — links, deadlines, and step-by-step guidance.

Simple, transparent pricing

Start free for 14 days. No credit card required. Scale as you grow.

Starter
Perfect for single-platform sellers

$19/mo

  • 1 sales platform
  • Up to 10 states monitored
  • Dashboard & nexus map
  • Email alerts at 50%, 75%, 90%, 100%
Start Free Trial
Most Popular
Growth
For growing multi-platform sellers

$39/mo

  • Unlimited sales platforms
  • All 45+ states monitored
  • Dashboard & nexus map
  • Email alerts at all thresholds
  • Historical trend data
Start Free Trial
Pro
Full compliance monitoring

$69/mo

  • Everything in Growth
  • State rule change alerts
  • Registration guidance
  • Priority support
  • PDF report exports
Start Free Trial

Frequently asked questions

Everything you need to know about NexusMonitor and sales tax nexus.

Stop guessing. Start monitoring.

Join e-commerce sellers who use NexusMonitor to stay ahead of sales tax obligations. Free for 14 days, no credit card required.