Oklahoma Secretary of State office — contact & fees
Updated August 2026
Official Resource
Oklahoma Official SOS WebsiteThe Oklahoma Secretary of State's Corporation Division registers business entities, processes amendments and reinstatements, and administers the public entity database. The Oklahoma City office accepts filings in person, by mail, and online. In-person submissions must arrive by 4:30 p.m. CT for same-business-day processing.
Office contact
- Address
- 421 N.W. 13th Street, Suite 210, Oklahoma City, OK 73103
- Phone (filings)
- (405) 522-2520
- In-person filing cutoff
- 4:30 p.m. Central Time
- Online filing portal
- sos.ok.gov — Corp Filing
- Entity search
- sos.ok.gov — Corp Inquiry
Entity formation and filing fees
Oklahoma corporation fees scale by authorized capital — the $50 minimum applies only to the lowest capitalization tier. LLCs pay a flat $100 formation fee regardless of size. Verify the applicable corporation fee tier at sos.ok.gov before filing.
| Filing | Fee |
|---|---|
| Domestic LLC — Articles of Organization | $100 |
| Domestic LLC — Annual Certificate | $25 |
| Domestic For-Profit Corporation — Articles of Incorporation (minimum tier) | $50 |
| Domestic Nonprofit Corporation — Articles of Incorporation | $25 |
| Foreign LLC — Application for Registration | $300 |
| Certificate of Good Standing | $20 |
| Name Reservation | $10 |
| Same-day expedited processing | +$50 |
Key Oklahoma state licensing agencies
Oklahoma Tax Commission
- What it covers
- Sales tax registration, withholding tax, business tax accounts, Oklahoma Taxpayer Access Point (OkTAP)
- Website
- oktax.state.ok.us
Oklahoma Employment Security Commission
- What it covers
- Unemployment insurance registration, employer accounts, wage reporting
- Website
- oklahoma.gov/oesc
Oklahoma Construction Industries Board
- What it covers
- Contractor licensing — electrical, mechanical, plumbing, general construction
- Website
- cib.ok.gov
Frequently Asked Questions
How much does it cost to form an LLC versus a corporation in Oklahoma?
An LLC's Articles of Organization cost a flat $100 regardless of size. Corporation fees scale with authorized capital, starting at a $50 minimum for the lowest tier.
Does Oklahoma require an annual filing for LLCs?
Yes. Oklahoma LLCs file an Annual Certificate for $25.
How much does same-day expedited filing cost in Oklahoma, and what's the cutoff?
Same-day service costs an extra $50 per filing. In-person submissions must reach the Oklahoma City office by 4:30 p.m. Central Time to be processed that day; later filings go through the next business day unless expedited.
This guide is informational only and is not affiliated with the Oklahoma Secretary of State's office or any state agency listed above. Contact information and fees verified against official Oklahoma Secretary of State sources, August 2026. Verify current fees at the official state website. Last verified: August 2026.