International tax (VAT, GST, sales tax), handled differently?
Review the built-in settings and provider integrations for your products and selling regions. Determine separately who handles calculation, invoices, filing and remittance, and what is included in the service you select. Have your tax adviser confirm the business requirements, then test addresses, exemptions, shipping, refunds and tax-inclusive displays. BigCommerce and Magento expose tax configuration, but neither platform label alone verifies all VAT, GST or sales-tax obligations.
Official references: BigCommerce tax settings; Adobe tax configuration.