South Dakota state income tax calculator

South Dakota does not levy a state income tax. This confirms your state income tax is $0.

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How this calculator works

Step 1 captures your income and residency details to confirm South Dakota does not levy personal income tax.

Step 2 applies South Dakota's income tax status (no state income tax) and returns $0 due.

Step 3 summarizes the result and reminds you to focus on federal or local tax items.

Frequently asked questions

Does South Dakota have a state income tax?

No. South Dakota does not levy a personal income tax, so the state income tax due is $0.

Do I need to file an South Dakota income tax return?

South Dakota does not require a personal income tax return. Focus on federal filing and any local taxes that apply to you.

What about local taxes?

Some South Dakota jurisdictions have local sales or other taxes. Those are not covered here.

Is this tax advice?

No. This tool provides estimates based on the inputs you provide and is not legal or tax advice.

South Dakota does not levy a personal income tax. This tool is informational, not legal or tax advice.

South Dakota state tax calculator

Quick answer

South Dakota does not levy a broad-based state income tax on wages in the current TaxGuide Pro calculator data. For 2026 planning, $60,000 single taxable income -> about $0 state income tax before credits. $120,000 married filing jointly taxable income -> about $0 state income tax before credits.

Also answers

  • South Dakota income tax calculator 2026
  • South Dakota state tax estimator
  • South Dakota income tax brackets
  • South Dakota income tax rate 2026
  • South Dakota state tax refund status

Good fit when

  • South Dakota residents checking 2026 tax planning
  • Part-year or nonresident South Dakota filers
  • Comparing state tax, withholding, refund, and deduction scenarios

Have ready

  • Filing status and residency
  • State taxable income or benefit amount
  • Withholding, payments, deductions, credits, or filing date as relevant

Result you get

Estimated South Dakota tax, effective rate, marginal rate, and worked examples from current calculator data.

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South Dakota state facts

Rate rules and worked examples

Examples use 2026 taxable income before credits or residency allocation. Use the official state source below to verify final filing guidance.

Income tax rule

South Dakota does not levy a broad-based state income tax on wages in the current TaxGuide Pro calculator data.

Single example

$60,000 single taxable income -> about $0 state income tax before credits.

Joint example

$120,000 married filing jointly taxable income -> about $0 state income tax before credits.

Deductions and exemptions

Residency, local taxes, deductions, credits, and special income rules can change the result.

Credits to review

Review dependent, household, income-based, and other South Dakota credits in the state credit finder, then confirm eligibility in official instructions.

Filing deadline

For a 2026 return filed in 2027, confirm the due date in published South Dakota instructions. State deadlines and disaster relief can differ from federal dates.

Refund processing

South Dakota does not guarantee one refund date for every return. E-filed, accurate returns with direct deposit are generally processed faster than paper or reviewed returns.

Official verification: South Dakota official tax agency.

How this calculation works

  • Uses state taxable income and residency allocation.
  • Applies the calculator's current state rate schedule.

Common mistakes and caveats

  • The result is an educational estimate, not a filed return or agency determination.
  • Residency, local taxes, deductions, credits, and special income rules can change the result.
  • Verify current forms, instructions, and deadlines with the official state tax agency.

FAQ

What is the South Dakota income tax rate for 2026?

South Dakota does not levy a broad-based state income tax on wages in the current TaxGuide Pro calculator data. The examples on this page use taxable income before credits, so final results can change when state deductions, credits, or residency allocation apply.

Does South Dakota tax retirement income?

South Dakota generally does not tax retirement income through a broad-based state income tax, but federal tax and other state-specific rules can still matter.

Does South Dakota tax Social Security benefits?

South Dakota generally does not tax Social Security benefits through a broad-based state income tax.

When will I get my South Dakota tax refund?

South Dakota refund timing depends on e-file versus paper filing, direct deposit, return accuracy, identity verification, and seasonal volume. Use the South Dakota refund timeline estimator and the official refund-status source for live updates.

Where should I verify my South Dakota tax result?

Use the official South Dakota revenue or tax agency sources linked in the sources section. TaxGuide Pro is an educational estimator and does not replace a filed state return or agency notice.

Last updated & sources

Last updated August 20, 2026.

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