Commerce Sync transfers sales information for non-US customers. How this information is transferred is different, depending on: location, Payment Solution, Accounting Software, the types of transfers, etc.
Transferring VAT:
Square - Commerce Sync does transfer sales information with Value Added Tax (VAT).
Clover - Commerce Sync does not currently transfer sales information with Value Added Tax (VAT).
Stripe - Commerce Sync does not currently transfer sales information with Value Added Tax (VAT).
Authorize.Net - Commerce Sync does not currently transfer sales information with Value Added Tax (VAT).
Transferring Non-US Currency:
Commerce Sync does support the transfer of non-US currencies on the invoice, payments and deposits*. However, Commerce Sync does not currently support multiple (more than one) currencies present in the sales.
*Deposit transfers for Square and Stripe only