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Duo Tax FAQ

Get answers to common questions regarding Duo's tax policies.


What is a VAT number?

A Value-Added Tax (VAT) number, also known as Goods & Service Tax (GST), is a registered tax identification number in a country with a tax system which utilizes VAT.

When a business registers for VAT in their billing country (non-U.S.), the business receives a VAT number for its country’s tax system.

A VAT number is exclusively used for the VAT scheme. A VAT number usually has between 4 and 15 digits, and starts with the two digit country code (e.g., DE for Germany, IN for India), followed by 2 to 13 other characters, (i.e., DE123456789).

Is VAT included on Duo invoices?

Currently, Duo does not charge a VAT. Reverse charges may apply.

Why is Duo prompting customers to provide their VAT number?

Many non-U.S. tax authorities require a customer’s VAT number to be listed on their invoice. Requiring this field for non-U.S. billing customers, when a customer first enters their billing info, or, when the customer updates their billing information, enables Duo to comply with this common requirement.

What if a business has multiple VAT numbers?

The VAT number provided to Duo should be the one associated with the customer’s billing country listed on its Duo account.

Does the customer’s VAT business name provided to Duo need to match the customer’s billing name on its Duo account?

No, we need the business name associated with the VAT number. The VAT business name will be listed on the invoice.

What if a business does not have a VAT number?

If a business does not have a VAT number, it should bypass the “VAT Number” field by selecting the prompt: “I do not have a VAT number.” Next, the business should select a reason for not having a VAT number from the following options:

  • “My country does not require VAT numbers”

  • “I have not yet met the requirements to become a VAT registrant in my billing country”

  • “Other” (Type other reasons here)

How do customers update VAT information in Duo?

Duo administrators with the "Owner" or "Billing" roles may update the VAT information by accessing the "Billing" page in the Duo Admin Panel.

Note: This page was prepared for informational purposes only. It is not intended to provide tax, legal or accounting advice. Customers should rely on their own tax, legal and accounting professionals.