States › Oklahoma
Apostille in Oklahoma
Issued by Oklahoma Secretary of State, Certification Department.
Verified against the official source on 2026-11-02Where is your Oklahoma document going?
Pick the country to see whether it accepts the apostille or needs consular legalization.
Valid in
Mexico
How to apply
| Ways to apply | Walk-inBy mail |
|---|---|
| Office | Oklahoma Secretary of State, Certification Department |
| Walk-in address | Secretary of State, Certification Department, 421 NW 13th St, Suite 210, Oklahoma City, OK 73103 |
| Mailing address | Secretary of State, Certification Department, 421 NW 13th St, Suite 210, Oklahoma City, OK 73103 |
| Payment accepted | cash, cashier's check, money order, MasterCard, Discover, Visa |
| Notarization or prior certification | Apostille attaches to "a notarized original document or a certified copy of an original document." Marriage licenses, divorce decrees, and court-certified documents must be dated within one year of submission; otherwise obtain a current certified copy from the county Court Clerk. Personal checks are not accepted. |
| Common documents | notarized documents, birth certificates, marriage licenses, divorce decrees, court-certified documents, public documents issued by Oklahoma agencies (Court Clerks, State Registrar of the Oklahoma State Department of Health) |
| Fee details | Apostille: "$25.00 per notarial act or certified document". Apostille for a foreign adoption in a Hague Convention country: "$10.00 per notarial act or certified document". Certificate of Signature (non-Hague countries): "$20.00 per notarial act or certified document". Card payments add a statutory 4% surcharge. |
| Phone | (405) 521-4211 |
Source
https://www.sos.ok.gov/business/apostilles.aspx
Editor's note
No processing time stated; page advises arriving by 4:30 for timely same-day handling. Hours Mon-Fri 8:00-5:00. Mailed requests need a cover letter with destination country, return address, and phone. No online or expedited service mentioned.