- How do I enter a VAT number for customers?
- Where can I find the field for the VAT number?
- Set up a business address for India with GST and PAN
- Why is my tax ID shown as invalid?
- Enter your VAT registration number in the address form
Country-specific validation and B2B benefitsRegistration of the business address and tax identification number
In this article, you will learn how to enter a business address correctly. The system automatically adapts the form to the selected country and displays the correct fields for the tax identification number (e.g. VAT number or GST).
A correctly formatted tax ID is essential for the correct tax treatment of B2B sales. You’ll also save time on future invoices, as the validated data is permanently stored and automatically carried over. This means you only need to enter your B2B customers’ tax details once, rather than having to re-enter them for every order.
TYRIOS automatically applies the relevant tax rules based on the delivery address. Tax details from the billing address are only used if no delivery address has been provided.
How to enter business addresses with tax registration numbers correctlyStammdaten-Optimierung
An accurate and up-to-date business address is the foundation for smooth B2B processes and well-organised invoicing. This guide ensures that you comply correctly with country-specific requirements and tax ID validations right from the start.
-
Select a country and set the address type to ‘business’
First, select the desired country in the address form (e.g. Germany, India or the Netherlands). Then set the address type to “business ”. The form will then automatically reload the configuration for that country. Additional company fields will appear, as well as the country-specific tax ID field (e.g. ‘VAT’ or, for India, the ‘GST’ and ‘PAN’ fields).
-
Enter your tax identification number in the correct format
Enter the tax ID in the field provided. Ensure you follow the country’s official format exactly. Example: For the Netherlands, use a format such as NL123456789B01. The field immediately checks the entry against the stored template. If the format is correct, the value is accepted and no error message is displayed. Note: The system validates the syntax of the format but does not carry out a live query with the tax authorities.
-
Save the address permanently
Click the ‘Save’ button. The address will only be successfully saved in the system if all mandatory fields have been completed and the tax ID complies with the country-specific format. Once saved, the layout – including the tax ID – for this customer will be permanently retained. This ensures correct tax treatment, such as the reverse-charge mechanism, for all future transactions.
Guide to international business addressesTax ID formats and important information on data entry
When entering business addresses, the form automatically adapts to the selected country. To avoid validation errors, please use the following country-specific formats:
- Germany (de): VAT (VAT number) DE123456789.
- Austria (at): VAT (UID number) ATU12345678.
- Switzerland (ch): VAT (VAT No.) CHE-123.456.789 MWST (additional code optional).
- India (in): There is no VAT field here. Instead, enter the GST (e.g. 27AAAAA0000A1Z5) and PAN (e.g. AAAAA0000A).
- Poland (pl): VAT (NIP) consists of 10 digits without a country code (e.g. 1234567890).
Important note: The system merely carries out a syntax check to ensure that the ID format complies with the national standard. No real-time verification takes place with the tax office, and this does not replace a legal check by your accounts department.
For countries without a specific profile (e.g. the USA or Sweden), a standard VAT field is displayed which accepts any input without a format check. A correctly entered tax ID is the basis for accurate tax calculation, such as the reverse-charge mechanism for cross-border transactions.
Different countries, different field labels
The input field for the tax ID does not have the same name everywhere — the address form automatically adapts the field label to the selected country, just like the format check itself. So if you’re looking for a field called ‘VAT’ and can’t find one, this isn’t an error — in most countries, the field is simply called something else:
- Germany: USt-IdNr.
- Austria: UID number
- Switzerland: MwSt-Nr.
- United Kingdom: VAT Number
- Italy: Partita IVA
- Spain: NIF/CIF
- France: Numéro TVA
- Netherlands: BTW number
- Poland: NIP
- Greece: VAT / AFM
- India: no VAT field — instead, two separate fields: GST and PAN
- All other countries (without country-specific configuration): VAT / Tax ID
Practical example: When entering a Dutch business address, customers often search in vain for ‘VAT’ — in the Netherlands, the field is labelled ‘BTW-nummer’. Functionally, it is the same field; only the label differs depending on the country.