South Carolina Income Tax Calculator 2026
Calculate your combined federal and South Carolina state income tax for 2026. See your federal brackets, South Carolina tax, effective rate, and take-home pay — all calculated privately in your browser.
How South Carolina Income Tax Calculator Works
Calculate your South Carolina income tax (up to 6.2%) plus federal tax. See combined brackets, effective rate, and take-home pay. and. Enter your values into the form above and the calculator processes them instantly in your browser — no data is sent to any server.
South Carolina Income Tax: Graduated Brackets Up to 6.2%
South Carolina uses a progressive income tax system with 3 brackets. Rates range from 0% to 6.2%, with higher income taxed at higher rates. South Carolina exempts the first $3,460 of income from tax.
Like federal taxes, South Carolina's system is marginal — only the income within each bracket is taxed at that bracket's rate. Combined with federal taxes (10%–37%), South Carolina residents can face a total marginal rate of up to 43.2% on their highest dollars of income.
South Carolina Tax Brackets for 2026 (Single Filer)
The South Carolina income tax brackets for single filers are:
- 0% on income from $0 to $3,460
- 3.0% on income from $3,460 to $17,330
- 6.2% on income over $17,330
Your marginal rate is the rate on your last dollar of income. Your effective rate (total tax divided by total income) is always lower because of the progressive structure.
Tips to Lower Your South Carolina Tax
Maximize pre-tax retirement contributions to reduce both federal and South Carolina taxable income. The 2026 401(k) limit is $24,500 ($32,500 with catch-up for age 50+). If South Carolina conforms to federal deductions, your standard deduction and itemized expenses also reduce your state tax liability.
Tips for Getting Accurate Results
For the most accurate results, use up-to-date numbers from official sources. Double-check your inputs before calculating — small errors in the starting values can lead to significantly different outputs. If you are comparing scenarios, keep all variables the same except the one you are testing. Save or screenshot your results for future reference. This calculator uses standard formulas and is designed to give you a reliable quick estimate, though professional advice may be needed for complex situations.
Frequently Asked Questions
What is South Carolina's top income tax rate?
South Carolina's top marginal income tax rate is 6.2%. The state has 3 tax brackets with rates ranging from 0% to 6.2%.
How does South Carolina's income tax work?
South Carolina uses a progressive system where income is taxed at increasing rates through 3 brackets. Only income within each bracket is taxed at that bracket's rate.
How much total tax will I pay in South Carolina?
Your total tax includes both federal (10%-37%) and South Carolina state tax (up to 6.2%). Use this calculator to see the combined amount, effective rate, and take-home pay.
Does South Carolina conform to federal deductions?
Many states base their tax on federal adjusted gross income with state-specific modifications. Check South Carolina's specific rules for how deductions and exemptions apply.
How can I lower my South Carolina state income tax?
Maximize pre-tax retirement contributions (401k, IRA), use your HSA, and ensure you take all available deductions. These reduce both federal and state taxable income.