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Santa Catarina ICMS Calculator

Buying or selling in Santa Catarina? ICMS starts with the standard internal 17% rate. Calculate it exactly here — free, in your browser, no signup. Internal sales to another ICMS taxpayer for resale or industrialisation are taxed at 12%, not 17% — the 17% here is the general rate.

Santa Catarina ICMS Calculator

Results update live as you type. Amounts in BRL. Nothing leaves your browser.

Standard internal rate: 17% — Internal sales to another ICMS taxpayer for resale or industrialisation are taxed at 12%, not 17% — the 17% here is the general rate.

Your Numbers
“Add tax” starts from a net price. “Remove tax” works backwards from a total that already includes tax. This is the STANDARD INTERNAL rate in Santa Catarina — This is the state's standard internal rate for most goods and services. Reduced tax bases, exemptions and tax substitution (ICMS-ST) can change the effective tax on specific items, and sales to buyers in other states generally use the interstate rates of 7% or 12% instead — this calculator does not cover those cases. If a different rate applies to your item, type it into the rate field. If you know a different rate applies to your item, type it into the rate field.
Your result
0.00
total including tax
Net amount (before tax)0.00
Tax amount0.00
Gross amount (with tax)0.00
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Internal rate verified November 2026 · Source: SEF-SC — Lei nº 10.297/1996, art. 19, I

How to calculate Santa Catarina ICMS in 3 steps

  1. Enter your amount. Type the price you are working with — either before tax or tax-inclusive, depending on what you have.
  2. Pick the rate and direction. The 17% standard internal rate is pre-filled and editable; choose “Add tax” or “Remove tax”.
  3. Read the split instantly. You get the net amount, the exact tax, and the gross total — ready to quote, invoice, or check a receipt against.

Why getting the Santa Catarina split right matters

Whether you are a seller working out what to charge or a buyer checking a receipt, the split matters: net, tax, total. Get any one of them wrong and either you absorb the tax or your customer disputes the invoice. This calculator shows all three instantly, in Brazilian reais.

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Santa Catarina ICMS FAQ

The standard internal rate is 17%. Internal sales to another ICMS taxpayer for resale or industrialisation are taxed at 12%, not 17% — the 17% here is the general rate.
Multiply the net price by the internal rate and add it on: a R$100.00 item at 17% gives R$17.00 of tax and a R$117.00 total. In the calculator, choose “Add tax”, enter the amount and rate, and the split appears instantly.
Divide the gross total by (1 + rate ÷ 100). At 17%, a R$100.00 total divides to a R$85.47 net — the tax inside it is R$14.53. Choose “Remove tax” in the calculator and it does this for you.
No. This is the state's standard internal rate for most goods and services. Reduced tax bases, exemptions and tax substitution (ICMS-ST) can change the effective tax on specific items, and sales to buyers in other states generally use the interstate rates of 7% or 12% instead — this calculator does not cover those cases. If a different rate applies to your item, type it into the rate field.
Sales to buyers in other states generally use the interstate rates of 7% or 12%, not the internal rate, and tax substitution (ICMS-ST) may also apply. This calculator starts from the internal rate; type 7% or 12% into the rate field if you are pricing an interstate sale.
Yes — unlimited calculations, no signup, no watermark. Everything runs in your browser; nothing you type is uploaded anywhere.

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