Bonus Tax Calculator for South Carolina

When you receive a bonus in South Carolina, your employer typically withholds at the federal supplemental rate of 22%, plus South Carolina's supplemental rate (often the top marginal rate of 6.4%), and FICA at 7.65%. The combined withholding can make bonuses feel heavily taxed, though your actual liability may differ from withholding at year-end. This calculator shows both the withholding and the true tax on your bonus in South Carolina.

South Carolina uses a graduated income tax with brackets ranging from 0-6.4%. Lower income is taxed at lower rates, with the 6.4% top rate applying only to income in the highest bracket. This progressive structure means your effective state tax rate is always lower than the top marginal rate. South Carolina does not have local income taxes, so the state graduated rate is the total state-level income tax burden.

The table below shows what you actually keep at five salary levels in South Carolina, accounting for federal tax, FICA, and South Carolina's graduated (0-6.4%) state tax.

See how South Carolina compares to other South states. Each link takes you to the bonus tax calculator landing page for that state.

For a comprehensive breakdown of South Carolina’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full South Carolina take-home pay page.