Overview
- The paritary Comitê Gestor do IBS will manage administration, collection, compensation and distribution of the tax, with 54 members split evenly between states and municipalities and autonomy over operations.
- A new Gov.br portal built by Receita Federal and Serpro offers assisted calculation, real-time monitoring and integration tests, with stated capacity of about 200 million operations per day after pilots with more than 400 companies.
- The timetable sets full CBS collection for 2027, a gradual shift of ICMS and ISS from 2029 to 2032, and complete replacement of the old system in 2033, with accumulated ICMS credits usable or refundable through 2032.
- Microentrepreneurs and Simples companies are exempt from reporting the test rates in 2026, while experts urge small businesses to upgrade systems and run simulations to manage credit mechanics and pricing.
- The sanctioned law mandates progressive state inheritance tax rates and creates a special regime for financial services with a rate starting at 10.85% in 2027 and reaching 12.5% by 2033.