THE EFFECTIVENESS OF WITHHOLDING TAX AS A TOOL FOR REVENUE GENERATION AND TAX EVASION CONTROL

Withholding tax (WHT) has emerged as a cornerstone of modern tax administration, particularly in developing economies where enforcement capacity remains limited. This study comprehensively examines the effectiveness of withholding tax as a dual-purpose instrument for revenue generation and tax evasion control. Drawing on recent empirical evidence from Argentina, Pakistan, Ghana, Nigeria, and other jurisdictions, the research synthesizes findings from peer-reviewed studies, government reports, and tax authority data spanning 2020 to 2026. The study establishes that withholding tax mechanisms significantly enhance revenue collection by shifting the compliance burden from taxpayers to third-party withholding agents, creating paper trails that facilitate verification, and leveraging the psychological deterrent effect of third-party reporting. Evidence from Argentina demonstrates that appointing large firms as collection agents increased self-reported sales among their business partners by 5.8 percentage points without hindering the economic activity of the collecting firms (Garriga & Tortarolo, 2024). However, the research also identifies critical limitations: over-reliance on withholding can create regressive tax burdens, distort economic behavior, and paradoxically legitimize informality when implemented without complementary formalization efforts. Analysis of Pakistan's "withholdingisation" reveals that while WHT accounts for 59% of income tax collection, this dominance may discourage voluntary compliance and documentation (Bukhari, Haq, & Shakoori, 2025). The study concludes that withholding tax is most effective when integrated within a comprehensive tax administration framework that balances automatic collection with voluntary compliance incentives, maintains credible enforcement capacity, and addresses the political economy constraints that frequently undermine tax reform efforts. Policy recommendations include investing in digital infrastructure for real-time verification, implementing risk-based audit systems, simplifying WHT regimes to reduce compliance costs, and strengthening legal protections against the dilution of enforcement powers.
Keywords: Withholding tax, tax evasion, revenue generation, tax compliance, third-party reporting, tax administration, developing economies