India's tax base doubled in decade, but demonetisation's role unclear

India's direct taxation landscape has undergone significant transformation in the past decade, with the number of taxpayers more than doubling and direct-tax revenue collections tripling. These figures underscore the country's expanding formal economy and improved tax compliance mechanisms. However, isolating the specific contribution of demonetisation—the contentious 2016 policy that removed high-denomination currency notes from circulation—to this broader expansion remains a complex analytical challenge.

Demonetisation was presented as a tool to combat black money and expand the tax base by formalising the economy. Supporters pointed to immediate indicators suggesting increased tax registrations and compliance in the months following the November 2016 announcement. Yet a decade-long perspective complicates this narrative, as India's tax base growth reflects multiple concurrent factors including economic expansion, improved digital infrastructure, enhanced tax administration systems, and increased public awareness about compliance.

Data analysts examining the ten-year trajectory note that while the growth in taxpayers and collections is undeniable, attributing specific portions to demonetisation versus other structural reforms proves methodologically challenging. The tax base expansion accelerated significantly post-2016, but continued its upward trajectory in subsequent years alongside other policy initiatives and technological improvements in tax administration.

Expertise remains divided on whether demonetisation produced lasting behavioural change in tax compliance or merely created temporary displacement effects. What remains clear is that India's formal tax base has substantially broadened, though the precise contribution of any single policy intervention requires more granular analysis than aggregate decade-long figures provide.