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What this means
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South Dakota
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Welcome to our simple online tool for obtaining your South Dakota Federal Tax ID. Click here to start now, or learn more below.

South Dakota Federal Tax ID numbers are issued by the IRS in a nine-digit format such as 12-3456789.

They uniquely identify your business to the government in the same way that Social Security Numbers do for individuals. But various non-government vendors will also request the number during routine commerce in South Dakota. For example, South Dakota banks will require you to provide one before opening a business bank account.

South Dakota Federal Tax ID / EIN numbers are valid in all fifty states. Many states issue "state tax IDs", which can go by names like sales tax number, resale number, and wholesale number. But any South Dakota business that requires a state tax ID will also require the nine-digit South Dakota Federal Tax ID that you can acquire right here.

If your answer is "Yes" to one or more of the questions below, you are in need of a Federal Tax ID in South Dakota:

Are you opening a business bank account?
Do you have employees?
Do you operate your business as an LLC or any type of Corporation or Partnership?
Do you file employment tax returns, excise tax returns, or alcohol / tobacco / firearm tax returns?
Are you a Trust, Estate, Non-Profit, Farmers Cooperative, Real Estate Mortgage Investment Conduit, or Plan Administrator?
Do you have a Keogh plan?

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