NEW feature: vat rules for One-Stop-Shop (OSS) supported on system version 2.0

We are happy to announce, that we introduced three new VAT rules for system version 2.0 users.

• One Stop Shop (goods) - “taxRule": 18
• One Stop Shop (electronic service) - “taxRule": 19
• One Stop Shop (other service) - “taxRule": 20

The VAT rules are available for orders, invoices and credit notes (with “bookingCategory”: “UNDERACHIEVEMENT”) and can be used by creating them with e.g. the property “taxRule”: 18.

Please note that either addressCountry or deliveryAddressCountry must be set for orders, invoices and credit notes that use one of these VAT rules. If deliveryAddressCountry is not specified, addressCountry is used by default.

Concrete examples, e.g. for invoices, can be found in our documentation.

Unsupported use cases with the new tax rules:

• Creation of an invoice with a custom revenue account (accountDatev)
• Creation of an advance ("AR"), a partial ("TR") or a final ("ER") invoice
• If one of the One Stop Shop tax rules is used in an order, a normal invoice ("RE") has to be created (see the example request Invoice/Factory/createInvoiceFromOrder).
• Creation as e-invoice - this is intentional, as OSS issued for Business-2-Consumer transactions, while e-invoices are used for Business-2-Business and Business-2-Government transactions.

Affected endpoints: All invoice and credit note endpoints.

Release: All changes are live since March, 5th 2025