Source: OECD (2020), Tax Administration 3.0: The Digital Transformation of Tax Administration, OECD, Paris. http://www.oecd.org/tax/forum-on-tax-administration/publications-and-products/tax-administration-3-0-the-digital-transformation-of-tax-administration.htm Building Block 2: Taxpayer touchpoints: facilitating the engagement of taxpayers with tax administration processes as and when necessary (for example through access to real-time support), increasingly looking for opportunities to put such touchpoints into taxpayers’ natural systems, including in more automated ways. Create and operate the top type interactions from Taxpayer touchpoints (as APIs): - Registering for tax - Filing tax returns - Making payments - Dealing with correspondence - Uploading data files onto tax administration systems