South Carolina Tax Calculator 2026
South Carolina uses progressive income tax brackets with a top marginal rate of 6.40%.
South Carolina state income tax estimator for filing year 2026
Use this page to estimate your 2026 state tax filing for South Carolina. The calculator pre-selects South Carolina and applies progressive brackets so you can test withholding and projected balance with state-specific rules.
South Carolina tax profile snapshot
- State: South Carolina (SC)
- Filing year: 2026
- Tax year data applied: 2025
- South Carolina uses progressive income tax brackets with a top marginal rate of 6.40%.
Need federal and state in one view?
Use the full Tax Calculators page for side-by-side federal and state workflows.
Frequently asked questions
Does South Carolina have state income tax for filing year 2026?
Yes. South Carolina applies state income tax rules in the current dataset for tax year 2025.
What South Carolina rate assumptions are used on this page?
South Carolina is modeled with progressive brackets, with a top marginal bracket rate of 6.40%.
Should I use this page or the main tax calculator?
Use this page for a state-specific workflow preloaded to one state and year. Use the main tax calculator if you need both federal and state tabs together or want to switch states quickly.