Working out ICMS in Sergipe? The standard internal rate is 19%. Enter your amount below and get the net, tax and total in one click. The rate rose from 18% to 19% on 1 April 2023. A 1% poverty-fund addition on final-consumer sales may bring the total to 20%.
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Standard internal rate: 19% — The rate rose from 18% to 19% on 1 April 2023. A 1% poverty-fund addition on final-consumer sales may bring the total to 20%.
Internal rate verified November 2026 · Source: Lei nº 9.176/2023, art. 18, I, “j” — ALESE (official law text)
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: São Paulo · Tocantins.