International tax (VAT, GST, sales tax) — handled differently?

BigCommerce: native VAT / GST / US sales-tax via Avalara AvaTax integration (most merchants), TaxJar (cheaper), or built-in basic tax tables. EU VAT-MOSS / OSS supported. UK VAT post-Brexit handled via tax tables. Generally clean for under 10 jurisdictions; gets fiddly past that.

Magento: same toolbox (Avalara, TaxJar, Vertex on Adobe Commerce, native tax tables). More flexibility on tax-rule edge cases — B2B tax-exempt customers, mixed product-class rules, country-of-origin-driven rates. Adobe Commerce + Vertex is the heavy-duty enterprise stack.

Where Magento wins: complex tax-class logic per customer-segment, mixed B2B / B2C rules in the same checkout, country-of-import-driven HS-code calculations.

Where BC wins: simple multi-region D2C with standard Avalara rules — setup is faster, fewer edge-case bugs.