Form 521 at a glance
What it is: Form 521 is used to update statutory agent information for a corporation, limited partnership, limited liability company, partnership or business trust.
Where and when to file: Regular Service: P.O. Box 788 Columbus, OH 43216 OR Expedite Service: P.O. Box 1390 Columbus, OH 43216. Regular Service: No Expedite Fee. Processing Time: 3-7 business days.
What to bring and attach to Form 521
Include the filing fee. Make the check or money order payable to Ohio Secretary of State.
Print on single-sided 8 ½ x 11 paper. Double sided paper will be rejected.
Information must be typed. Illegible forms will be rejected.
If the information you wish to provide for the record does not fit on the form, attach additional provisions on a single-sided, 8 1/2 x 11 sheet(s) of paper.
A filled-in Form 521 example: a company appoints a new statutory agent

How to fill out Form 521, box by box
Return documents and service type

Statutory Agent Update Filing Fee: $25 (checked November 11, 2026).
Under Return Documents To, enter the Name (Individual or Business Name), the Email Address (Required) and, if necessary, To the Attention of.
Then enter the Address, City, State, ZIP Code and Phone Number.
SERVICE TYPE - Check only ONE item. Expedited Fees are IN ADDITION to the filing fee on the form. Failure to include the expedite fee or indicate a selection will result in regular service.
Regular Service: No Expedite Fee. Processing Time: 3-7 business days.
Expedite Service 1: Fee: $100. Processing Time: 2 business days after receipt (checked November 11, 2026).
Expedite Service 2: Fee: $200. Processing Time: 1 business day after receipt (checked November 11, 2026).
Expedite Service 3 (in-person delivery is required): Fee: $300. Processing Time: 4 hours if received by 1:00 p.m. If received after 1:00 p.m., documents will be processed by noon the following business day (checked November 11, 2026).
Preclearance Filing: Fee: $50. Processing Time: 1-2 business days after receipt (checked November 11, 2026).
Check only one box, Name of Entity and Name of Current Agent

CHECK ONLY ONE(1) BOX: (1) Subsequent Appointment of Agent, (2) Change of Address of an Agent or (3) Resignation of Agent.
If a corporation, limited partnership, limited liability company or business trust would like to appoint a new statutory agent, select box 1.
If a corporation, limited partnership, limited liability company, or business trust would like to change the address of the current agent, select box 2.
If the agent of a corporation, limited partnership, limited liability company, partnership, or business trust would like to resign from their position, select box 3.
A partnership and limited liability partnership must complete a statement of amendment to appoint a new agent or change the address of the current agent.
Under Name of Entity, Charter, License or Registration No. and Name of Current Agent, the entity must provide its name, charter/license/registration number and the name of the current agent.
The current agent's name must be the same as the agent listed in the office's records.
Name and Address of New Agent

Under Name and Address of New Agent, complete the information in this section if box (1) is checked.
Appointment of Agent - O.R.C. 1701.07, 1702.06, 1703.041, 1782.04, 1706.09 and 1746.04: Ohio business entities and foreign business entities that are registered or licensed in Ohio must appoint and maintain a statutory agent to accept service of process.
The statutory agent must be one of the following: (1) A natural person residing in Ohio; or (2) a domestic or foreign business entity with an Ohio address.
If the agent is a business entity then the agent must meet the requirements of Title XVII of the Revised Code to transact business or exercise privileges in Ohio.
A statutory agent address may either be the primary residence address of the agent or the usual place of business address. The statutory agent address must be an Ohio address.
Statutory Agent Address Prohibitions: Post Office (P.O.) boxes are NOT allowed. Exception: If a Post Office Box and Rural Route Number are both provided, the address is allowed. Commercial Mail Receiving Agency (CMRA) addresses are NOT allowed.
A CMRA is a private business that rents private mailboxes to customers.
Acceptance of Appointment
New Address of Agent
Resignation of Agent

Complete the information in this section if box (3) is checked: the agent of record for the entity identified on page 1 resigns as statutory agent.
An agent may resign by filing this form, stating their intent to resign and providing the current or last known address of the entity's principal office.
Under Mailing Address, enter the current or last known address of the entity's principal office where a copy of this Resignation of Agent was sent as of the date of filing or prior to the date filed.
On the date of filing this form with the office or prior to that date, the agent must send a copy of the resignation form to the current or last known address of the entity's principal office.
For a domestic for-profit corporation, partnership, limited partnership, limited liability company and business trust, thirty days after the filing of this form, the authority of the agent will terminate.
For a domestic nonprofit corporation or a foreign corporation, sixty days after the filing of this form, the authority of the agent will terminate.
Signature

After completing all information on the filing form, please make sure to sign the form.
By signing and submitting this form to the Ohio Secretary of State, the undersigned certifies that he or she has the requisite authority to execute this document.
Required Agent update must be signed by an authorized representative.
If the authorized representative is an individual, then they must sign in the "signature" box and print their name in the "Print Name" box.
If the authorized representative is a business entity, not an individual, then print the business name in the "signature" box; an authorized representative of the business entity must sign in the "By" box and print their name in the "Print Name" box.
If the entity is a domestic corporation, the form must be signed by the incorporators or a corporate officer.
If the entity is a foreign corporation, the form must be signed by an authorized representative.
If the entity is a domestic or foreign limited partnership, the form must be signed by an officer, all of the general partners or a majority of the general partners.
If the entity is a domestic or foreign limited liability company, the form must be signed by a member, manager or an authorized representative.
If the entity is a business trust, an authorized representative must sign.
If the form is used for an agent's resignation, the resigning agent must sign the form. The Ohio Secretary of State cannot file or record a document that contains a social security number or tax identifications number.
Please do not enter a social security number or tax identification number, in any format, on this form.
Common questions about Form 521
Where do I file it?
File online or for more information: OhioBusinessCentral.gov
Sources
[1] Form 521 (Last Revised 10/2024), Ohio Secretary of State (the Official source link on this page).


