A value added tax identification number (VAT) is used to identify a company for value added tax purposes. If you are not renting out your accommodation as a company, then you will not have a VAT. If you are a company that has a VAT number, you can enter that information on the Billing Details page here. Simply choose "Company" at the top, then enter in your VAT number.
If you are a company, and do not have a VAT number, that is okay. Choose "Company" and then "No VAT ID".
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