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TaxMath

2025 South Dakota Income Tax Brackets & Rates

South Dakota does not tax wage and salary income in tax year 2025. Figures verified against primary sources on 2026-02-24.

Federal and state tax brackets, capital gains rates, and corporate tax rates for South Dakota in tax year 2025.

Federal Income Tax Brackets (2025)

FromToRate
$0$11,92510.00%
$11,925$48,47512.00%
$48,475$103,35022.00%
$103,350$197,30024.00%
$197,300$250,52532.00%
$250,525$626,35035.00%
$626,350No limit37.00%

South Dakota State Income Tax Brackets (2025)

FromToRate
$0No limit0.00%

Federal Capital Gains Tax Brackets (2025)

FromToRate
$0$48,3500.00%
$48,350$533,40015.00%
$533,400No limit20.00%

Additional Information

Federal Corporate Tax Rate
21.00%
State Corporate Tax Rate
0.00%
Federal Standard Deduction (Single)
$15,750

Common questions

Does South Dakota have an income tax in 2025?
No. South Dakota does not tax wage and salary income in tax year 2025.
Are the 2025 South Dakota income tax figures final?
Yes. They match the final published schedule, verified 2026-02-24.

Sources & Trust

Every figure above is traceable to a published source. Each source is rated by what published it, not by how confident we feel about it.

Federal (United States) — 2025

OfficialValues verified
4 sources— show
  1. Cited for Rate brackets · confirmed

    Primary citation recorded with the tax table entry; coverage beyond the rate brackets is unconfirmed.

  2. Cited for Rate brackets, Standard deduction, Capital gains · confirmed

    Section 2.15(1): 2025 standard deduction for unmarried individuals = $15,000 (pre-OBBBA)

  3. Cited for Standard deduction, Corporate rate · confirmed

    Section 3.01: removes Rev. Proc. 2024-40 §2.15(1); restates 2025 amount as $15,750 under OBBBA §70102

  4. Cited for Corporate rate · confirmed

    Official U.S. Code text: flat 21% corporate rate under §11(b)

How we rate sources — tiers are derived from what published the document, not from our confidence in it.

South Dakota — 2025

OfficialValues verified
3 sources— show
  1. Cited for Rate brackets, Capital gains · confirmed

    SD Dept. of Revenue, individuals tax page, fetched this session — states SD has no state income tax

  2. Cited for Corporate rate · confirmed

    SD DOR business taxes page, fetched this session: 'South Dakota does not impose a corporate income tax'

  3. Cited for Corporate rate · confirmed

    Corroborating search result confirming the separate 6% bank franchise tax scope (financial institutions only)

How we rate sources — tiers are derived from what published the document, not from our confidence in it.