How Does Twilio Validate my Tax ID?

Are you having a hard time entering a valid VAT, GST or other Tax identification number in Twilio Console? This guide explains the accepted Tax ID formatting.

Notice: If Twilio's validation rules won't accept a Tax ID you believe to be valid, please contact our Support team with documentation to prove your tax registration, or evidence to show you are a business.

VAT in Europe

If you are in the European Union, United Kingdom, Norway, Switzerland, or Liechtenstein, you are requested to enter your VAT registration number into Twilio Console. Please input the VAT registration number based on the standard formatting for your country. If you are unsure of your VAT format or validity, please validate the number at a site like

VAT number field tips:

  • VAT numbers may or may not have spaces - either way is accepted.
  • The VAT number can be preceded by the country code, but this is not required. If the country code is not included, Twilio will use the country code from your service address.
  • Some countries have special formatting rules: ex. Switzerland VAT numbers must be formatted 123.456.789 and end with MWST, TVA, or IVA

For other details on European VAT, see Does Twilio Charge VAT.

GST in Australia

If you are in Australia, you are requested to enter your GST registration number into Twilio Console. Please note that not every customer who has an ABN is registered for GST; you are expected to add your GST number only if you are registered for GST. Your GST number will be verified against the standard ABN format.

For other details on Australian GST, see Does Twilio charge GST in Australia.

GST in Singapore

If you are in Singapore, you are requested to enter your GST registration number into Twilio Console. Please note that depending on the company type, customers may need to use a standard GST registration number, a National Registration Identity Card (NRIC) Number, or a Unique Entity Number (UEN).

You can validate your GST, NRIC, or UEN number at the Singapore GST Registered Business Search ( Here are examples of how the different numbers may be formatted:

Tax identification type Description Example
GST Registration Number Business under GST registration, Sole proprietorships MX1234567X
National Registration Identity Card (NRIC) Number Individuals who own sole proprietorships X1234567X
Unique Entity Number (UEN) Local company (Pte, Ltd, Ltd Co) 200312345A
  Partnership 52912345A
  Foreign company, LLP, club, association, agency, etc. T08XX1234A

For other details on Singaporean GST, see Does Twilio charge GST in Singapore.

Other Tax Questions?

For all other questions on how Twilio is required to tax its services, please see the Taxes section of our Support Help Center.

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