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What are South Dakota's income tax rates for 2026?

Short answer

South Dakota has no state income tax on wages. South Dakota has no personal income tax.

South Dakota income tax brackets (single filer)

Taxable income	Rate	Note
All income	0%	No state income tax on wages

Context

South Dakota has no personal income tax. Standard deduction / exemptions used here: $0 single. Married couples generally use doubled thresholds. City and county income taxes, where they exist, come on top.

What moves this number

Filing status and W-4 settings

Married filing jointly roughly doubles bracket widths and the standard deduction, so the same salary withholds very differently by status. Dependents, second jobs, and extra-withholding entries on the W-4 move every paycheck.

State and local taxes

Nine states levy no wage income tax while top marginal rates elsewhere exceed 10%, and cities like New York add their own layer. The same salary can differ by hundreds of dollars per month purely on location.

Pre-tax benefits

Traditional 401(k), HSA, and health premiums come out before income tax, shrinking both taxable income and the withholding on each check — a raise in contributions costs less take-home than the headline amount.

Methodology

Brackets from the state revenue department's 2025–2026 published schedules; effective rate computed with no pre-tax deductions or credits.

Assumptions and caveats

Figures use current-year federal brackets and standard deductions; your actual withholding depends on your W-4 and state.
Estimates exclude credits (Child Tax Credit, EITC), which can materially change the final number.
This is educational arithmetic, not tax advice — confirm decisions with a tax professional.
This page was last reviewed on 2026-10-02. Ranges are updated as new data lands, so re-check before using them in a contract or a plan.
Use these numbers as a starting range, not a guarantee — your own historical data always beats a benchmark.

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