South Dakota Secretary of State office — contact & fees
Updated August 2026
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 ↗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.