Quaderno
Global tax compliance software for online businesses.
Quaderno is a tax compliance platform for online businesses selling across borders. It calculates sales tax, VAT, and GST, monitors registration thresholds, issues compliant invoices and e-invoices, and prepares or files tax returns. It supports SaaS, e-commerce, digital creators, subscription platforms, and marketplaces.
The platform includes four modules: Monitor tracks US economic nexus and international VAT/GST thresholds with alerts; Tax Engine calculates taxes at checkout; E-Invoicing issues structured invoices and transmits data to tax authorities; Filing prepares and submits returns. Integrations include Stripe, Shopify, WooCommerce, PayPal, Amazon, and Zapier, plus a REST API for custom checkouts. It supports sales tax across US states, EU/UK VAT, GST in countries like Canada and Australia, and rules in 150+ countries.
Quaderno is built for online-first businesses selling internationally. Plans are priced by monthly transaction volume, with a 7-day free trial requiring no credit card.
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