Impact of Digital Payment Adoption on Informal Sector Productivity and Tax Revenue in Emerging Economies

Project Abstract

The rapid expansion of digital payment systems in emerging economies offers a potential pathway to enhance productivity within the informal sector and broaden tax bases, yet empirical evidence remains fragmented across contexts. This study investigates how digital payment adoption affects informal sector productivity and tax revenue, examining mechanisms such as transaction efficiency, access to credit, financial inclusion, transparency, and formalization incentives. Employing a mixed-methods approach, we combine macro-level panel data from 20 emerging economies spanning a decade with micro-level firm surveys in selected urban and peri-urban markets to capture heterogeneity by firm size, sector, and geographic location. The quantitative analysis leverages difference-in-differences and instrumental variable techniques to identify causal effects of digital payment uptake on output, labor productivity, and input efficiency, while controlling for macroeconomic shocks, policy changes, and digital infrastructure endowments. We also examine tax revenue implications by analyzing VAT and income tax collections in relation to digital payment penetration, with attention to compliance costs, reporting accuracy, and information trails generated by electronic transactions. The qualitative component comprises in-depth interviews with informal sector operators, mobile money agents, and tax authorities to uncover behavioral responses, perceived barriers to adoption, and procedural frictions that influence formalization decisions. The study further dissects the role of complementary policies such as merchant acceptance networks, agent network expansion, interoperability standards, and digital literacy programs in shaping adoption trajectories and their productivity dividends. Preliminary findings indicate that digital payments can substantially reduce cash handling costs and time transfers, leading to measurable gains in productive time, inventory turnover, and access to formal credit, particularly for micro and small enterprises. However, the magnitude of productivity gains is moderated by the strength of financial infrastructure, trust in digital platforms, and the regulatory environment. On the revenue side, increased transaction traceability and simplified tax reporting tend to improve compliance and broaden the tax base, though gains are contingent on effective enforcement, administrative capacity, and taxpayer education. The research identifies critical thresholds for policy design, such as achieving broad merchant acceptance, ensuring low transaction fees for small-scale operators, and implementing user-friendly reporting tools for informal businesses. Policy implications emphasize the need for integrated digital ecosystems that couple payment platforms with inclusive financial services, streamlined tax processes, and targeted capacity-building programs. The study contributes to the literature by offering robust cross-country evidence on the channels linking digital payments to productivity and tax outcomes, delineating heterogeneity across firm sizes and sectors, and providing actionable guidance for policymakers aiming to accelerate formalization while safeguarding financial inclusion in emerging economies.

Project Overview

What This Project Is About

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A plain-language overview of how digital payments affect the way informal workers earn income and how governments collect taxes in developing economies. It looks at whether using digital payment methods helps small sellers formalize their activities, improves productivity, and expands tax bases without stifling entrepreneurship.

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The Problem It Addresses

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Many informal workers operate with cash and lack formal records, making it hard to measure productivity or tax contributions. This project examines whether digital payments can increase efficiency, track earnings, and broaden tax compliance, while considering potential barriers like access to technology and trust in digital systems.

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Objectives of the Project

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1. Assess the relationship between digital payment adoption and productivity among informal sector workers.
2. Examine changes in tax revenue linked to formalization and better record-keeping from digital payments.
3. Identify barriers to adoption and factors that encourage use of digital payments.
4. Provide policy and practical recommendations to improve outcomes for workers and governments.

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What You Will Do Step by Step

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1) Review existing studies on digital payments and informal economies. 2) Design a small pilot study or use secondary data from a relevant country. 3) Collect basic data on payment methods, sales, and tax filings where available. 4) Analyze how digital payments relate to productivity and reported income. 5) Identify obstacles and enablers for adoption. 6) Draft practical recommendations for stakeholders.

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Expected Outcome

Better understanding of whether digital payment adoption raises informal workers’ productivity and tax contributions, plus actionable steps for policymakers and organizations to support adoption while mitigating access barriers.