Shopify's built-in tax tools only count Shopify sales. NexusMonitor aggregates every channel — Shopify, WooCommerce, and Square — into one threshold tracker across all 46+ nexus states. Set custom alerts at any percentage. Get step-by-step registration guidance for states you've crossed. Export a PDF report for your CPA. Pure monitoring — not filing — so it works alongside any tax filing software. One number that's actually accurate.

• Daily order sync from Shopify, WooCommerce, and Square — one dashboard.
• Color-coded nexus map and email alerts for all 46+ nexus state thresholds.
• Registration guidance for 46+ nexus states — contacts, fees, timelines (Pro).
• Export a formatted PDF nexus report ready to share with your accountant (Pro).
• Daily compliance monitoring — alerts when state nexus rules are updated (Pro).