South Carolina income tax brackets for 2026
South Carolina starts from your federal taxable income, then applies three brackets. Because the top 6% bracket begins at just $17,830 of taxable income, most full-time workers reach it, so your marginal rate is usually 6% even though the schedule opens at 0%.
| Taxable income | Rate |
|---|---|
| First $3,560 | 0% |
| $3,560 to $17,830 | 3% |
| Over $17,830 | 6% |
2025 schedule (latest published), applied to income after the federal standard deduction. South Carolina has no local income tax.
What $70,000 looks like after taxes in South Carolina
Here is how a $70,000 salary breaks down for a single filer with no 401(k) or other pre-tax deductions. Set your real pay and contributions in the calculator above to see your own figure.
| Gross salary | $70,000 |
| Federal income tax | $6,570 |
| Social Security + Medicare (FICA) | $5,355 |
| South Carolina income tax | $2,592 |
| Total tax | $14,517 |
| Take-home pay | $55,483 |
That leaves about $55,483 in take-home pay, roughly 79.3% of gross, for an effective total tax rate near 20.7%. South Carolina income tax is only about $2,592 of that. Adding a 401(k) or HSA lowers both your state and federal tax.
Why your effective South Carolina rate is below 6%
The 6% headline is a marginal rate, not what you pay on every dollar. The first $3,560 of taxable income is taxed at 0% and the next slice at 3%, so your effective state rate on a $70,000 salary lands closer to 4% than 6%.
South Carolina also begins from your federal taxable income, which means the federal standard deduction reduces your state tax too. Retirees benefit further, since Social Security is not taxed and there is a retirement-income deduction that grows once you turn 65.
What shapes your South Carolina take-home pay
Federal income tax and FICA come out of every U.S. paycheck the same way; the state layer is what makes a South Carolina paycheck specific. South Carolina starts from your federal taxable income and applies three brackets: 0% on the first $3,560, 3% up to $17,830, and 6% above that (the top rate was cut from 6.2% to 6% for 2025). Because the top bracket starts low, most full-time workers pay close to 6% on their last dollars. South Carolina has no local income tax.
Your take-home (net) pay is your gross minus federal tax, FICA, those South Carolina taxes, and any pre-tax deductions. The calculator above applies them in order, so the figure you see reflects what actually reaches your account each payday.
The deductions, step by step
- Pre-tax deductions, traditional 401(k), HSA, and pre-tax health premiums come out first and lower your taxable income (your 401(k) still counts for Social Security and Medicare, though).
- Federal income tax, applied to income after the standard deduction using the 2026 progressive brackets for your filing status.
- FICA, Social Security at 6.2% (up to the annual wage base) plus Medicare at 1.45% on all wages, with an extra 0.9% on wages above $200,000.
- South Carolina tax, South Carolina starts from your federal taxable income and applies three brackets: 0% on the first $3,560, 3% up to $17,830, and 6% above that (the top rate was cut from 6.2% to 6% for 2025). Because the top bracket starts low, most full-time workers pay close to 6% on their last dollars. South Carolina has no local income tax.
Biweekly vs. monthly, does it change your taxes?
No. Your total annual tax depends on what you earn in a year, not how often you're paid. A biweekly schedule (26 checks) simply slices the same annual take-home into smaller, more frequent amounts than a monthly schedule (12 checks). Switch the pay-frequency selector above and you'll see the per-paycheck figure change while the annual totals stay put.
Make your estimate more accurate
- Set your real 401(k) percentage and HSA amount, pre-tax contributions can noticeably raise take-home-adjusted savings.
- Choose the filing status that matches your W-4; married filing jointly widens the brackets.
- Add your pre-tax health premium if your employer deducts it before taxes.
This is an estimate of annual tax liability, not exact per-paycheck withholding (which follows IRS Pub 15-T tables and your specific W-4). It uses 2026 federal and FICA figures and applies each state's latest published income-tax schedule (2025 for most states until 2026 rates are released); it doesn't model local city taxes, post-tax deductions, or tax credits. Treat the result as a close ballpark, and check your actual pay stub for the precise numbers.