> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.idenfy.com/llms.txt
> Use this file to discover all available pages before exploring further.
# KYB VAT Validation
> Validate EU company VAT numbers across 27 member states using the iDenfy business verification VAT validation service integration.
iDenfy has introduced an option to perform VAT number validation for the EU market. This allows EU-market partners to verify whether a company has a valid VAT number. It also checks if the company’s name and address match the records associated with that VAT number.
**Currently, the service works with these countries:**
Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden.
To have this service enabled, please [book a demo call](https://idenfy.com/demo-page/) with our team.
### How to Add VAT Number to KYB Custom Flow
### KYB VAT Check from the User Side
Every flow set up by the company is different. In this case, we want to show how an input field in the simplified flow would look.
### How to Check a VAT Number on the Partners' Side
Currently, there are 2 ways to check a VAT number. Regardless of the option chosen, you will have to review the retrieved result in the verification page:
**1.** The first option is to set up a VAT check automation and require your user to fill in the VAT field during the know your business verification:
**2.** The second option is to fill in the VAT details yourself and manually check the details via the dashboard, in the verification page:
### What Happens If an Incorrect VAT Number Is Entered During the Validation Check?
The invalid status will be returned, and you will be able to perform a re-check:
