South Carolina Paycheck Calculator

South Carolina paychecks are affected by federal withholding, FICA, and South Carolina state income tax. The state uses a graduated income tax structure, so different portions of taxable income may be taxed at different rates instead of one flat percentage.

• Federal income tax depends on gross pay, filing status, pay frequency, and federal W-4 setup.
• Social Security and Medicare still apply to South Carolina wages.
• South Carolina uses graduated withholding-style brackets with a top 6% rate in the 2026 formula.
• Form SC W-4 allowances and additional withholding choices can affect actual South Carolina withholding.
• Pre-tax deductions can reduce taxable wages in this estimate.
• Post-tax deductions reduce take-home pay but generally do not reduce taxable wages.

Your actual paycheck can also change based on pay frequency, filing situation, pre-tax deductions, post-tax deductions, federal W-4, South Carolina SC W-4, benefits, employer payroll setup, bonuses, overtime, commissions, and irregular pay periods.

South Carolina has state income tax on wages. This calculator estimates South Carolina state income tax with graduated brackets instead of treating the state as flat-tax or no-income-tax.

For 2026, the SCDOR withholding formula uses 0% up to $3,640, 3% from $3,640 to $18,230, and 6% above $18,230 before SC W-4 allowances and special payroll adjustments. Actual withholding can still vary based on allowances, standard deductions, additional withholding, table lookups, credits, and employer payroll details.

Form SC W-4 is South Carolina's employee withholding allowance certificate. Employees complete it so their employer can withhold the correct South Carolina income tax from pay.

SC W-4 settings matter because South Carolina withholding is tied to allowances claimed and any additional amount requested. The SCDOR instructions say regular wage withholding must be based on allowances claimed and may not be a flat amount or percentage of wages.

This calculator focuses on federal tax, FICA, South Carolina state income tax, pre-tax deductions, post-tax deductions, and estimated take-home pay.

South Carolina local income tax is not a regular statewide paycheck item in this estimate. Compare your result with your employer's payroll details if a local rule applies.

Overtime, bonuses, and commissions can make one South Carolina paycheck larger than usual. Payroll systems may withhold more during that pay period because the check looks higher, even if your final annual tax result is different.

Use the overtime calculator for extra-hours scenarios, and the pay raise calculator when you are comparing a raise, new salary, or new hourly wage.

South Carolina state income tax withholding, federal income tax, Social Security, and Medicare can all reduce your paycheck before it reaches your bank account. Health insurance, traditional 401(k), HSA, and FSA deductions may reduce taxable wages when they are pre-tax.

Roth contributions, garnishments, and some insurance or benefit deductions may be post-tax and still lower the final check.

SC W-4 allowances, additional withholding choices, employer payroll software, payroll timing, overtime, bonuses, commissions, irregular pay periods, and benefit deductions can make actual paychecks differ from this estimate. If you are converting pay rates first, the salary to hourly calculator can help check the gross-pay side.