Research in Brief 171

Tax payments are increasingly made digitally in low and middle income countries (LMICs), especially in Africa, where revenue mobilisation remains critical. However, there are obstacles to wider adoption, as well as limited understanding of the impacts of mandating digital tools to all taxpayers.

We examined these issues in Eswatini by measuring the impact of digital tax payment on tax compliance, considering both voluntary and mandated adoption, after the zero-cash-handling policy of April 2021.

Theoretically, digital payments can cut compliance costs, reduce bribery opportunities, and increase convenience. They create verifiable trails, improving transparency and accuracy – especially when integrated with e-filing. For administrations, they speed collection, reduce leakages, and improve monitoring via higher-quality data. Yet uptake is constrained by persistent cash use, low digital literacy, weak connectivity, and administrative barriers.

These reforms are directly relevant to the global digital public infrastructure (DPI) agenda, where interoperable and inclusive digital payments are recognised as a core building block alongside digital IDs and data exchange, enabling governments to deliver faster, more secure, and more integrated public services.

Summary of African Tax Administration Paper 43.

Authors

Fabrizio Santoro

Fabrizio Santoro is a Research Fellow at the Institute of Development Studies, and is the co-lead for our programme of work on Digital Public Infrastructure (DPI). Previously, he was Research Lead for the second component of the ICTD's DIGITAX Research Programme. His main research interests relate to governance, public finance, and taxation, with a strong focus on impact evaluation methodologies and statistical analysis. He holds a PhD in Economics from the University of Sussex.

Phindile T. Masuku

Phindile Masuku is a Research Manager at the Eswatini Revenue Service. She has worked as an Economist in the public sector for over 14 years, 12 of which have been in a tax administration. She holds a Master’s of Commerce in Economics from the University of South Africa, and her main interests are taxation, development economics and public finance.

Tanele Magongo

Tanele Magongo is the Manager, Strategy, at the Eswatini Revenue Service (ERS). She is passionate about economic development, public finance, and strategy management. She is a Fulbright Scholarship awardee and holds an MSc in Policy Economics from the University of Illinois, Urbana–Champaign, USA.
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