Brazil completes change to revenue-based gambling tax as legal sports betting looms Nosa Omoigui, iGaming Business · July 20, 2021 at 5:40 pm The Brazilian government has officially signed off on regulatory changes which will see the country implement a tax system based on gross gaming revenue (GGR), rather than turnover. The new tax law has now been published in Brazil’s Official Gazette. President Jair Bolsonaro signed the modification of chapter 30 of Law 13,756 (which came into effect in 2018), thereby changing the tax base applicable to sports betting. The regulatory changes were first approved by the Chamber of Deputies back in June. The tax base is calculated after winnings – and taxes on these winnings – are paid out, as well as after social security payments… Brazil is currently also in the drawn-out process of regulating sports betting.