Intrastat is a reporting regime relating to the intra-community trade of goods within the EU.
Under Regulation (EC) No. 638/2004, VAT taxpayers who are making intra-community sales and purchases of goods are required to complete Intrastat declarations when the reporting threshold is breached.
Intrastat declarations must be completed in both the country of dispatch (by the seller) and the country of arrival (by the purchaser). The format and data elements of Intrastat declarations vary from country to country, though some data elements are required in all Member States. Reporting thresholds also vary by Member State.
Source: SOVOS