South Carolina Income Tax Calculator
Calculate your South Carolina state income tax alongside federal tax. See the full bracket breakdown, effective rate, and combined tax liability.
Last updated: · Tax Foundation (2025 state brackets) + IRS Rev. Proc. 2025-32 (2026 federal)
On a $75,000 salary in South Carolina (single filer, state rates 2025), your estimated state income tax is $3,172.58 (4.2% effective rate). Combined with federal tax of $7,670.00 (2026 brackets), your total income tax is $10,842.58 (14.5% combined effective rate). South Carolina has progressive brackets with a top rate of 6.40%. Source: Tax Foundation, state revenue department.
South Carolina Deduction: $14,600.00
Standard deduction: $14,600.00
Top rate of 6.4% for 2025. Being reduced to 5.9% by 2027. First $3,460 exempt.
Federal estimates use 2026 IRS brackets. State estimates use 2025 state rate data.
Results
South Carolina Tax Bracket Breakdown
| Rate | Range | Tax |
|---|---|---|
| 0.00% | $0 – $3,460 | $0.00 |
| 3.00% | $3,460 – $17,330 | $416.10 |
| 6.40% | $17,330 – ∞ | $2,756.48 |
| Total South Carolina Tax | $3,172.58 | |
Compare South Carolina with Other States
How This Is Calculated
South Carolina uses a progressive income tax system. Each bracket's rate applies only to income within that range.
| Rate | Income Range (Single) |
|---|---|
| 0.00% | $0 – $3,460 |
| 3.00% | $3,460 – $17,330 |
| 6.40% | $17,330 – No limit |
Data source
State bracket data from the Tax Foundation (2025 State Individual Income Tax Rates and Brackets). Cross-referenced with the South Carolina revenue department. Federal brackets from IRS Rev. Proc. 2025-32 (2026).
Frequently Asked Questions
- How much is South Carolina income tax on $75,000?
- On a $75,000 salary in South Carolina, you would owe approximately $3,172.58 in state income tax (4.2% effective rate) plus $7,670.00 in federal income tax, for a combined total of $10,842.58 (14.5% combined effective rate).
- What is the South Carolina income tax rate for 2025?
- South Carolina uses a progressive income tax system with rates ranging from 0.00% to 6.40%. Top rate of 6.4% for 2025. Being reduced to 5.9% by 2027. First $3,460 exempt.