LAUSR

Background There has been an intense debate in the Brazilian National Congress on how to reform the country’s tax system on consumption. This paper investigates the effects of the tax reform under the Constitutional Amendment Bill 45/2019 on cigarette prices, consumption and tax collection. The reform will introduce a new goods and services tax (GST) and tobacco excise tax (TET). Methods The micro data from the National Household Sample Survey (PNAD) of 2008 and the National Health Survey (PNS) of 2013 are inputs in the simulation in order to determine the smoking behaviour and consumer responses to price changes as accurately as possible across the different Brazilian states. We developed three scenarios for the tobacco tax reform and their effects on cigarette prices, smoking behaviour and tax collection. We also estimate the size of the illicit cigarette market by Brazilian state and simulate the impacts of a 10% reduction in its market share. Findings Overall, we found that a GST of 27% and a TET of either 51%, 56% or specific 3.89 BRL per pack would lead to considerably higher cigarette prices, lower cigarette consumption and, above all, an increase of cigarette tax collection between 8% and 27% depending on the state. A discretionary 10% reduction in the illicit market would add about 8.5% of extra tax collection per year to the country. Conclusions The simulated scenarios demonstrated that, to keep the cigarette prices at least at the same level as those in the current tax scheme, TET should be no less than 77.85% of the retail price. This means that any politically feasible tax reform should result in higher cigarette prices and a reduction in cigarette consumption. Considering the nationwide effect, in all scenarios, the total increase in tobacco tax revenue is around 8.5% or 1.5 billion BRL per year. This extra revenue is highly desirable in an environment of chronic fiscal imbalance and the COVID-19 pandemic crisis.