South Dakota Income Tax Calculator
South Dakota has no state income tax. Estimate your federal income tax below.
South Dakota Has No State Income Tax
South Dakota levies no state income tax, relying instead on sales and excise taxes for revenue. This makes it a popular state for LLC registrations and trusts. The calculator below estimates your federal income tax only — there is no South Dakota state tax to add.
Tax Information
Basics
Earned Income
Your Earned Income
(W-2 box 1)
(W-2 box 2)
Other Family Incomes
Unemployment, retirement pay, etc.
Deductions & Proposed Credits
Proposed to be tax-free
Proposed to be tax-free
Max $10,000 for qualified vehicle
Standard Deductions (2025):
- • Single / MFS: $15,000
- • Married Filing Jointly: $30,000
- • Head of Household: $22,500
If your itemized deductions exceed the standard deduction, the calculator will automatically use itemized.
Estimated Total Income Tax
$16,851.50
Total tax owed (Fed + State + FICA)
Federal Tax
$8,114.00
State Tax
$3,000.00
FICA Tax
$5,737.50
After-Tax Income
$58,148.50
Effective Tax Rate
22.47%
Marginal Tax Rate
22%
Taxable Income
$75,000.00
Income Breakdown
Tax by Bracket
Tax Bracket Details
Understanding Your Tax Rates
- •Effective Tax Rate (22.47%): This is the actual percentage of your income that goes to taxes. It's calculated as total tax divided by total income.
- •Marginal Tax Rate (22%): This is the tax rate on your last dollar of income. Any additional income will be taxed at this rate.
- •Progressive Taxation: The U.S. uses a progressive tax system, meaning different portions of your income are taxed at different rates.
Tax Summary
South Dakota Income Tax Overview
South Dakota levies no state income tax, relying instead on sales and excise taxes for revenue. This makes it a popular state for LLC registrations and trusts.
No state income tax — how South Dakota generates revenue
States without an income tax must fund government services through alternative means. South Dakota typically relies on sales taxes, excise taxes, and in some cases natural resource revenues. Understanding your overall tax picture in South Dakota means looking at sales taxes and property taxes, not just income taxes.
Federal income tax brackets (2025)
Regardless of which state you live in, you owe federal income tax on your taxable income. The 2025 federal brackets for single filers are: 10% (up to $11,925), 12% ($11,926–$48,475), 22% ($48,476–$103,350), 24% ($103,351–$197,300), 32% ($197,301–$250,525), 35% ($250,526–$626,350), and 37% (above $626,350). The calculator above computes your federal obligation using these brackets plus your standard or itemized deductions.
Note: This calculator estimates federal income tax only. State income tax calculations vary significantly by state and may depend on filing status, deductions, and credits specific to South Dakota. Consult a tax professional for personalized advice.
Income tax calculators for other states
View all 50 US state calculators →Also see: South Dakota Mortgage Calculator
Estimate your monthly mortgage payment with South Dakota's property tax rate of 1.14% already factored in.
South Dakota Mortgage Calculator →