Company number and VAT number: the same number yet different. The terms VAT number and company number are often used interchangeably. 

Corporate number

Every company in Belgium receives a unique company number upon registration in the Crossroads Bank for Enterprises (CBE). It consists of a 0 or a 1, followed by 9 digits. A company number looks like this: '0123.321.123'.  The company number allows various government agencies and administrations to identify your company. For example, this number is also mentioned on all invoices you receive from YoungOnes. 

VAT number

The VAT number consists of your company number, with "VAT BE" in front of it. For example: VAT BE 0123 456 789.   The VAT number is used by the VAT declaration. This number is also mentioned on your invoices.