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South Dakota Individual Income Tax Filing deadlines and extensions for 2025.
If you are a resident or have been involved in significant business operations within South Dakota then you might be required to file South Dakota State Taxes. We look at the most important tax deadlines and tax extensions for South Dakota in 2025.
South Dakota is one of the few states that does not levy individual income taxes. This means that residents and those conducting significant business operations in South Dakota are not required to file an individual state income tax return.
C Corporation
South Dakota does not impose a state corporate income tax on C Corporations.
Pass-Throughs
South Dakota S Corporation & Partnership Tax Deadlines for 2025
South Dakota does not impose a state income tax on Pass-Through Entities like S Corporations, Partnerships, and LLCs, and the income passed through to individuals is not subject to a state-level income tax.
However, businesses in South Dakota may still need to be aware of other types of tax obligations, such as sales tax, use tax, and property tax, among others. It’s important for businesses to consult with a tax professional or the South Dakota Department of Revenue to understand their specific tax obligations.
The State of South Dakota currently does not have an Individual Income Tax.
South Dakota Estate Tax filings are not required.
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The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.
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