If you're running EU-registered business there are some strict tax rules to follow, but with HostBill its easy to fulfill them.
Set your tax rules
Go to Settings->Tax Settings and configure general tax config to match image below:
Next you need to add tax rate for each EU-Member country, to do so in Settings->Tax settings use option "Add new tax" (note: set up your country vat rate for each country).
Fastest way to add all rules for your country and EU-Member countries is to use option "Add premade tax list" as shown on screenshot below.
After clicking on "Add premade tax list" select your country from drop-down list and accept.
Add field to collect VAT Id
Go to Clients->Registration Fields and from "Premade field profiles" select "European Business" profile. This will automatically add VAT-EU field. You can also manually add VAT-EU to your registration fields, just make sure that this field applies to Company and set variable name in Advanced tab to vateu