EORI is a unique number used in the European Union for the identification of companies and individuals (economic operators — special legal status) engaged in a customs-related field in the EU. Your business can operate both in and out of the EU. Each company working with importation, exportation, or transit of goods is obliged to get this number that makes its activity legal and enables a company to work freely in an inter-economic area. Remember that you should get this number before starting your customs activity.
This number is issued by the customs authority of a Member State of the EU where a company is incorporated. In the case of Estonian companies, you have to obtain an EORI in the Estonian Tax and Customs Board
and this process will be done free of charge and fully online (as well as almost everything in Estonia). A unique EORI number registration means the recording in the Economic Operators Registration and Identification system where all EORI numbers are listed.
Remember that if your company is not engaged in trading physical goods throughout the European Union or sells only digital products, you don't need to obtain an EORI number. In the case of Estonian companies, e-Residency will be enough for working in the main fields of economic life. Note that EORI is a unique number, which means that a company can be registered just under the only one number. If you need to review your EORI or check the absence of a number, visit this official website