South Dakota Secretary of State office — contact & fees
Quick Answer
The South Dakota Secretary of State handles all business entity registrations, annual reports, amendments, and certificates of existence. Online filings through SOSEnterprise are $15 cheaper than paper submissions for formation filings. Fee amounts in the table below are sourced from the live schedule at sdsos.gov, confirmed August 2026; verify all amounts before filing.
Open Official South Dakota Secretary of State Portal ↗This site is an independent, non-government business entity search directory and isn't affiliated with, endorsed by, or operated by any state government or Secretary of State office. Always verify details directly with the official agency before filing or paying any fee.
Office contact
- Walk-in address
- 500 East Capitol Avenue, Suite 112 (Business Services), Pierre, SD 57501-5070
- Mailing address
- Capitol Building, 500 East Capitol Avenue, Suite 204, Pierre, SD 57501-5070
- Main phone
- (605) 773-3537
- Business filings phone
- (605) 773-4845
- Business filings email
- corpinfo@state.sd.us
- Office hours
- Monday – Friday, 8:00 a.m. to 5:00 p.m. Central Time
- SOSEnterprise portal
- sosenterprise.sd.gov
Entity formation and filing fees
Online filings are $15 less than paper submissions for LLC and corporation formations. The amounts below are sourced from the live fee schedule at sdsos.gov — Filing Fees, confirmed August 2026. Verify current amounts before filing.
Domestic LLC — Articles of Organization
- Fee (Online / Paper)
- Online $150 / Paper $165
Domestic LLC — Annual Report (due 1st of anniversary month)
- Fee (Online / Paper)
- Online $55 / Paper $70
Domestic For-Profit Corporation — Articles of Incorporation
- Fee (Online / Paper)
- Online $150 / Paper $165
Domestic For-Profit Corporation — Annual Report
- Fee (Online / Paper)
- Online $55 / Paper $70
Domestic Nonprofit Corporation — Articles of Incorporation
- Fee (Online / Paper)
- $30
Domestic Nonprofit Corporation — Annual Report
- Fee (Online / Paper)
- $10
Late Annual Report penalty
- Fee (Online / Paper)
- +$55
Name Reservation
- Fee (Online / Paper)
- $25
Certificate of Existence
- Fee (Online / Paper)
- Online $20 / Paper $35
Expedited processing
- Fee (Online / Paper)
- +$50
UCC filing, notary, and apostille services
The Secretary of State also handles UCC filings, notary commissions, and document authentication:
- UCC search and filing — available through the Secretary of State's UCC system; check the current fee schedule before filing.
- Notary public commissions — a $30 filing fee for a 6-year commission.
- Apostilles and authentications — $25 per document, plus a $50 expedite fee for an in-person appointment.
Source: South Dakota Secretary of State notary handbook and apostille page (sdsos.gov).
Key South Dakota state licensing agencies
South Dakota Department of Revenue
- What it covers
- Sales and use tax registration, withholding tax, business tax licensing
- Website
- dor.sd.gov
South Dakota Department of Labor and Regulation
- What it covers
- Unemployment insurance registration, employer accounts, professional licensing
- Website
- dlr.sd.gov
South Dakota Contractors State License Board
- What it covers
- Contractor licensing — electrical, plumbing, mechanical, general construction
Frequently Asked Questions
Is it cheaper to file South Dakota business paperwork online?
Yes. Online filings run $15 less than paper submissions for LLC and corporation formations and annual reports — for example, LLC formation is $150 online versus $165 by paper.
How much does a South Dakota Certificate of Existence cost?
$20 if ordered online, or $35 for a paper request — the same $15 online discount pattern South Dakota applies to its LLC and corporation filings as well.
How much does expedited processing cost for a South Dakota business filing?
South Dakota's expedited processing option adds $50 on top of the standard filing fee, whether for a formation, annual report, or certificate order.