The Global VAT/GST Tax Compliance Platform is a Shopify app ECOSIRE builds to order for your store — not an instant App Store download. After you purchase, our engineers configure, install and connect it to your specific jurisdictions, registrations and accounting stack, then hand it over with documentation and support.

Cross-border selling means living with VAT in the EU and UK, GST in Australia, India, Canada, New Zealand and Singapore, and US sales tax — each with its own rates, rounding rules, invoice formats and filing calendars. Native Shopify Tax covers common cases but leaves gaps around B2B reverse-charge, VAT ID validation, multi-currency rounding and registration-threshold tracking. This platform closes those gaps.

It hooks into the Shopify Admin GraphQL API and subscribes to orders/create, orders/updated and refunds/create webhooks to capture every taxable event. Tax determination runs against a rate engine covering 100+ countries, with VAT ID validation (VIES for the EU, equivalent checks elsewhere) to apply reverse-charge correctly for verified B2B buyers. Results are written to order metafields so your invoices, exports and downstream systems stay consistent.

Multi-currency orders are reconciled to your registration currency at the booking rate, with jurisdiction-correct rounding. A threshold monitor tracks your turnover per country against registration limits (EU OSS/IOSS, UK, US economic nexus) and alerts you before you trip a new obligation. Period reports are generated per jurisdiction in filing-ready formats, with export to CSV and your accounting platform.

Because it is built to order, the data model, jurisdictions, invoice templates and report formats are tailored to your catalog and registrations — then supported by the people who built it.