⚠️ Important Notice

This app is an independent support tool, with no affiliation to government agencies or tax authorities.

The values ​​presented are estimates and do not replace professional tax or accounting advice.

For official and up-to-date information, please consult the portals below:

📘 Official Sources:

Federal Revenue Service: www.gov.br/receitafederal

National Council of Tax Policy (CONFAZ): www.confaz.fazenda.gov.br

Simples Nacional Portal: www8.receita.fazenda.gov.br/SimplesNacional

State Finance Secretariats (SEFAZ) — according to the state of origin and destination of the transaction.

💼 About the app

The Interstate ICMS Calculator helps companies, accountants, and professionals quickly simulate the tax due on transactions between Brazilian states.

With a simple and intuitive interface, the app allows you to compare tax rates, estimate the differential tax rate (DIFAL), and obtain a clear view of the values ​​involved in transactions.

✳️ Available Features

🧮 Estimated calculation of interstate ICMS (Brazilian sales tax) between states.

🗺️ Selection of origin and destination state.

💰 Field to enter the value of the merchandise, freight, and other costs.

📊 Result with calculation basis and applicable tax rate.

🧰 Support tool for tax planning and pricing.

🧠 Important to know

The results are only estimated references, based on average interstate ICMS tax rates.

The application does not replace tax systems, does not issue payment slips, and has no official affiliation.

It is recommended to always check the current rules at the SEFAZ (State Finance Secretariat) of the state involved.