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.
Average completion time of our one-page application is less than five minutes.
Your privacy is protected with the same secure encryption technology used by all major banking institutions. After submitting the form, your new South Dakota Federal Tax ID / EIN can be delivered within one hour, and you can start using it immediately for most banking, tax reporting, and other business purposes.
Federal Tax IDs can go by many names in South Dakota, including:




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