RUV CalculatorSouth Carolina Income Tax Calculator 2026https://calc.ruvlabs.com/c/federal-income-tax/south-carolina
South Carolina Income Tax Calculator 2026
Federal and state, added up
Income tax
Tax
State income tax
Refund Or Owed
Effective Rate
Advanced options
Breakdown
State applied
Taxable Income
Deduction Used
Marginal Rate
State schedule year
Combined marginal rate
After Tax Income
The standard deduction was used — itemising would come out smaller.
Federal plus South Carolina state comes to $13,332.50, an effective rate of 15.69%.
South Carolina income tax brackets
South Carolina has 2 brackets for single filers, from 1.99% on the first $30,000 of taxable income to 5.21% on income over $30,000, and married couples use the same bands. The calculator applies no South Carolina standard deduction; South Carolina's personal exemptions and credits are not modelled, so the estimate can run a little high.
This is South Carolina's 2026 schedule. It was checked on 2026-09-30 against SCDOR Information about H. 4216 (1.99% under $30,000; 5.21% minus $966 at $30,000 and above; SCIAD phases out with income).
South Carolina tax rate schedule (2026)
Rate
Taxable income (single or joint)
Tax at the top of the band
1.99%
up to $30,000
$597
5.21%
over $30,000
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South Carolina and federal income tax by income
At the calculator's default $85,000, South Carolina takes $3,463 of a $13,333 total income tax bill, or 26%. Filing status matters too: a married couple filing jointly on $170,000 owes South Carolina $7,891, which is $966 more than two single filers earning $85,000 each.
Single filer, standard deductions only
Gross income
South Carolina tax
South Carolina rate
Federal tax
Combined effective rate
$30,000
$597
1.99%
$1,420
6.72%
$50,000
$1,639
3.28%
$3,820
10.92%
$65,000
$2,421
3.72%
$5,620
12.37%
$85,000 (default)
$3,463
4.07%
$9,870
15.69%
$100,000
$4,244
4.24%
$13,170
17.41%
$125,000
$5,547
4.44%
$18,734
19.42%
$200,000
$9,454
4.73%
$36,734
23.09%
$300,000
$14,664
4.89%
$68,134
27.60%
$400,000
$19,874
4.97%
$103,134
30.75%
Marginal tax rate in South Carolina
The next dollar a single filer earns above $85,000 is taxed at 27.21%: 22% federal and 5.21% by South Carolina. That is already South Carolina's top rate.
South Carolina uses 2 brackets, from 1.99% to 5.21% (2026 schedule). The top rate applies above $30,000 of taxable income for single filers.
How much South Carolina income tax is due on $85,000?
For a single filer, $3,463 to South Carolina and $9,870 in federal income tax — $13,333 in all, an effective rate of 15.69%. That leaves $71,668 before Social Security and Medicare.
Does South Carolina have a standard deduction?
No fixed amount the calculator applies — South Carolina's rates go straight onto income, as explained above.
Do married couples pay more South Carolina tax than two single filers?
At $85,000 each, a joint return on $170,000 owes $7,891 — $966 more than two single returns, because South Carolina's joint brackets are not exactly double the single ones.
Where does South Carolina's top income tax bracket start?
At $30,000 of taxable income for single filers. On a single return, tax on the income below that line comes to $597.
Sources
Official documents the rates and rules on this page come from.
This is a reference calculation using common tax assumptions and is not a substitute for professional advice. We accept no liability for decisions made from it — see the terms of use for details.