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# What Is My Estonian Company Identification Number?

Your company, when accessing the Estonian registry, obtains a registration number. This number, along with the name of your company, serves to identify your company and must be included in the invoices that they send to your clients or send you to your suppliers. They are made up of numeric digits only.
You can find yours in the registry entry that the e-Business registry sent you when your company was registered or looking for the name of your company [here](https://ariregister.rik.ee/eng). 

The identification number is different from the VAT number, which begins with EE (eg EE123456789), this number is also important to include on invoices, especially European ones, both from customers and suppliers.

Regardless of whether or not your company has VAT, **from the moment you have a registration number, you can already invoice any client and be invoiced by your suppliers**.