South Carolina state income tax calculator

Estimate South Carolina income tax using the 0% to 6.2% bracket schedule.

How this calculator works

Step 1 starts with the South Carolina taxable income you already calculated on your return. If you are a part-year resident or nonresident, the tool applies the South Carolina income percentage you provide to focus on South Carolina-source income.

Step 2 applies South Carolina's three-tier bracket schedule to estimate total tax.

Step 3 summarizes the effective and marginal rates so you can see how additional income would be taxed and whether your current estimate matches your expectations.

Frequently asked questions

What income should I enter?

Use South Carolina taxable income from your return. If you only know total income, estimate deductions first or use the standard deduction tool.

Do part-year residents prorate income?

Yes. Use the South Carolina income allocation percentage from your return to prorate taxable income before applying the South Carolina bracket schedule.

Does South Carolina use brackets?

Yes. South Carolina uses a three-tier schedule with rates from 0% up to 6.2%, and the thresholds apply across filing statuses.

Is this tax advice?

No. This tool provides estimates based on the inputs you provide and is not legal or tax advice.

This tool provides estimates based on South Carolina's published brackets. Not legal or tax advice.