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South Carolina State Income Tax Calculator 2026

South Carolina state income tax calculator for 2026. South Carolina uses a progressive state income tax with multiple brackets.

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Written by PennyCompass Team

South Carolina uses a progressive state income tax with multiple brackets.

Income after federal AGI adjustments. Use the paycheck calculator for the full picture.

South Carolina state income tax

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Effective state rate

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Marginal state rate

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Your breakdown

Updates live as you type
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Frequently asked questions

What is the state income tax rate in South Carolina?
South Carolina uses a progressive state income tax with multiple brackets.
How does this compare to the full paycheck calculator?
This page focuses on state income tax only. For a complete paycheck breakdown including federal income tax, FICA, and SDI, use our state paycheck calculator linked below.
¿Cuál es la diferencia entre el tipo impositivo marginal y el tipo efectivo en South Carolina?
El tipo marginal es el porcentaje que se aplica al último dólar de ingresos imponibles. El tipo efectivo es el impuesto total dividido entre los ingresos totales, y siempre es menor que el marginal en sistemas progresivos. Por ejemplo, si el tipo marginal es el 6% pero los primeros tramos tributan menos, el tipo efectivo puede quedar por debajo del 4%.

Related calculators

South Carolina paycheck calculator

Full paycheck math including federal and FICA.

South Carolina sales tax

Sales tax on purchases.

South Carolina property tax

Annual property tax.

Sources

  1. IRS Publication 15-T (2026) — Federal Income Tax Withholding Methods, Internal Revenue Service
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