Abstract: The subject of this research is the mechanism of value-added tax administration in the member-stated of the Eurasian Economic Union. The goal lies in identification of differences in the order of registration with tax authority for paying the value-added tax in Russia, Belarus and Kazakhstan, as well as formulation of recommendations on harmonization of indirect taxation of international trade considering positive experience of the developed European states. The inter-country differences of tax registration are determined. Special attention is given to the novelties in taxation of transboundary supply of e-services. Research methodology is based on the comparative analysis that allows determining the inter-country differences, advantages and disadvantages of value-added tax administration. The main conclusions consists in recommendations on harmonization of indirect taxation of international trade in the Eurasian economic space. The conducted research is intended for closing the gaps between the theoretical representations on tax consequences of supplying goods and services, transfer of property rights and practical analysis of the actual state of value-added tax administration in the Eurasian Economic Union.