The joint IOTA-OECD workshop on ’A Customer Centric Approach in Design and Development of Digital Services’ took place from 30 August until 1 September 2017 in Moscow, Russia. Supported by the Federal Tax Service of Russia, the event attracted more than 80 participants from tax administrations of Europe as well as from Australia, Canada, Chile, China, India, Israel, Malaysia and Singapore who together with the business representatives from Russia and the UK discussed the ways of customer engagement in rethinking of tax administration's service delivery, and also exchanged experiences about the development of mobile solutions.