The service supports multiple countries and regions for the core tax determination and compliance features. Support varies by feature, including tax determination, invoice generation, and tax validation.

Direct and marketplace transactions

The service supports tax jurisdictions based on whether the seller or marketplace is liable for collecting and remitting sales tax on transactions.

Direct-to-consumer (two-party) transactions—Involves a buyer and a seller. The service determines which party is liable for collecting and remitting sales tax. You can change this behavior using configuration settings.
Marketplace (three-party) transactions—Involves a buyer, seller, and marketplace. The service supports this model in countries and regions where marketplace liability applies (for example, the European Union).

Here's a list of countries and regions supported by this feature:

Country name	Direct-to-consumer (two-party)	Marketplace (three-party)
Australia	Yes	Yes
Azerbaijan	Yes	No
Bahrain	Yes	No
Canada - Federal	Yes	No
Canada - British Columbia	Yes	No
Canada - Manitoba	Yes	No
Canada - Saskatchewan	Yes	No
Canada - Quebec	Yes	No
Chile	Yes	No
European Union¹	Yes	Yes
Iceland	Yes	No
India	Yes	No
Jordan	Yes	No
Kenya	Yes	No
Malaysia	Yes	Yes
Mexico	Yes	No
Moldova	Yes	No
Morocco	Yes	No
New Zealand	Yes	Yes
Norway	Yes	Yes²
Oman	Yes	No
Philippines	Yes	No
Saudi Arabia	Yes	No
Senegal	Yes	No
Serbia	Yes	No
Singapore	Yes	Yes
South Africa	Yes	No
South Korea	Yes	No
Switzerland	Yes	Yes
Taiwan	Yes	No
Turkey	Yes	No
Uganda	Yes	No
United Arab Emirates (UAE)	Yes	No
United Kingdom (UK)	Yes	Yes

Liability determination

The service supports most countries and regions that have introduced marketplace facilitator laws. Support for the United States (US) is planned for later in 2026.

Here's a list of countries and regions supported by this feature:

Country name	Business-to-business (B2B)	Business-to-consumer (B2C)
Australia	Yes	Yes
European Union	Yes	Yes
Malaysia	Yes	Yes
New Zealand	Yes	Yes
Norway	No²	Yes
Singapore	Yes	Yes
Switzerland	Yes	Yes
United Kingdom	Yes	Yes

Indirect tax calculation

The service calculates taxes using the tax rate configurations defined in Vertex O Series Cloud. The configurations in O Series Cloud determine which countries and regions are supported for tax calculation.

Supported invoices

Vertex Invoice IQ supports multiple countries and regions for generating, delivering, and managing tax-compliant digital invoices. For more information, see Supported Invoices.

Supported validation types

Vertex Validator supports multiple countries and regions for business tax identification number validation. For more information, see Supported Validation Types.

Considerations

Note the following considerations:

The European Union (EU) includes the Canary Islands, which you can configure as its own country.
Norwegian legislation doesn't permit marketplace (three-party) business-to-business (B2B) transactions for physical goods, so marketplaces aren't supported.