

Foreign registration · no form number
Idaho Corporation Foreign Registration in South Dakota
To do business in South Dakota, a corporation formed in Idaho registers there on an online registration (no form number), with $750 in state fees. South Dakota also wants Idaho's Certificate of Existence ($10). We file it with the Secretary of State using your Idaho records and act as your registered agent there for the first year.
Idaho vs South Dakota: the paperwork
| Idaho formed here | South Dakota registering here | |
|---|---|---|
| Document | Idaho Certificate of Existence | Application for Certificate of Authority (Foreign Business Corporation) (no form number) |
| State fee | $10 | $750 at order |
| How it is handled | Idaho: online or by mail | Filed online with South Dakota |
| Paid expedite | $50 | |
| Office | Idaho Secretary of State, Business Services | South Dakota Secretary of State |
| Official page | sosbiz.idaho.gov | sdsos.gov |
| Age rule | Dated when issued | Must be current |
| Yearly filing | Annual Report, no fee, every year | Annual Report, fee set by the state, every year |
| Due | Last day of the entity's anniversary month | By the first day of the registration anniversary month each year |
| Agent | Your Idaho registered agent | Our South Dakota registered agent |
How Idaho companies register with South Dakota
Order the Idaho certificate
The Certificate of Existence ($10) is ordered from Idaho separately; it is not part of our South Dakota order. South Dakota wants the Idaho certificate current, so it is ordered close to the filing date.
We prepare and file the registration
It names us as your South Dakota registered agent, with your Idaho name and formation date and the certificate attached. Once Idaho's certificate is in hand, South Dakota's filing goes in. After approval, your Idaho corporation is registered with South Dakota.
First-year cost, Idaho to South Dakota
| Item | Amount |
|---|---|
| State fees, paid at order | $750 |
| Certificate of Existence, paid to Idaho | $10 |
| Our service, with a year of South Dakota registered agent service | $199 |
| First-year total, Idaho certificate included | $959 |
South Dakota's paid expedite is optional and not in the total.
Will your Idaho name work for South Dakota?
If South Dakota's records show it taken, you can use an alternate name for the Idaho company. South Dakota can hold a name for $25 before you file.
Agents: South Dakota and Idaho
Idaho and South Dakota both call it a registered agent. Your current registered agent stays for Idaho; ours takes South Dakota's papers and notices.
Yearly filings: South Dakota and Idaho
Idaho wants the Annual Report every year (no fee); South Dakota wants the Annual Report every year. Both states' filings stay current side by side.
LLC or corporation, Idaho to South Dakota
An LLC formed in Idaho files its own registration with South Dakota ($750 in state fees, the same, plus the Certificate of Existence ($10)). After that come Idaho's Annual Report (no fee) and South Dakota's Annual Report ($55). See the LLC filing.
Registering a South Dakota company in Idaho
A corporation formed in South Dakota that registers with Idaho files Idaho's registration (no form number) with $103.50 in state fees. See that filing.
Common questions: Idaho to South Dakota
Does my Idaho company need to register in South Dakota?
Yes, once an Idaho business operates there; South Dakota law lists 11 activities that do not count on their own.
Is this a certificate of authority?
Yes: South Dakota issues one to Idaho corporations once the filing is approved.
How much does it cost to register an Idaho corporation in South Dakota?
$949 at checkout plus $10 to Idaho for the Certificate of Existence, $959 in all (checkout is $750 in state fees plus our $199).
Do I need Idaho's certificate of good standing?
Yes: South Dakota wants Idaho's Certificate of Existence ($10), current at filing.
How long does the South Dakota registration take?
South Dakota approves online filings immediately, once Idaho's certificate is in hand. Paid expedite: $50.
What are the yearly costs for Idaho and South Dakota?
Our registered agent renewal ($149 a year), Idaho's report (no fee) and South Dakota's report (fee set by the state).
What if I don't register with South Dakota?
An Idaho company cannot sue in court there until it registers.
Does South Dakota require a registered agent?
Yes: the Idaho registered agent stays, and ours covers South Dakota for year one.
Will South Dakota accept my Idaho name?
Yes, if no company there has it; if one does, it uses an alternate name there and keeps its Idaho name at home.
Can I form a new South Dakota corporation instead?
Yes, but Idaho keeps the original, so you run two companies: the new one files South Dakota's Annual Report, and the original keeps Idaho's Annual Report.
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