This free Roraima ICMS calculator starts from the state's 20% standard internal rate. Add tax to a net price, or work backwards from a tax-inclusive total. The rate rose to 20% from 30 March 2023.
Results update live as you type. Amounts in BRL. Nothing leaves your browser.
Standard internal rate: 20% — The rate rose to 20% from 30 March 2023.
Internal rate verified November 2026 · Source: SEFAZ-RR — Solução de Consulta Tributária nº 6/2023
Tax is the part of the price most people get wrong, because the headline rate is rarely the whole story: in Brazil the internal rate differs by state, interstate sales use different rates, and tax substitution (ICMS-ST) changes who pays on some goods. This calculator starts from the general internal rate — and if your item qualifies for a different treatment, type that rate in and it calculates it instead.
See all Brazilian states, try the tax calculator for any rate, or put the result on a free invoice. More state calculators: Rondônia · Santa Catarina.