Corporation Registered-Agent Change and Resignation Requirements in Iowa
At a glance
| Governing law, entity, agent, and scope | Iowa Business Corporation Act, Iowa Code chapter 490; ordinary domestic for-profit corporation, with office-and-agent rules in §§ 490.140 and 490.501-.504 and 2026 unauthorized-use amendments, not provider selection, foreign qualification, or service litigation |
|---|---|
| Continuous agent and office; eligibility | Continuously maintain Iowa registered office and agent; agent may be Iowa- resident individual or domestic/foreign corporation or eligible entity, with foreign entity registered to do business; agent's business office is identical to registered office (§§ 490.140(17), 490.501) |
| Corporation change authority and internal approval | Corporation delivers statement to change office, agent, or both; § 490.502 states no separate board/shareholder approval threshold; board chair, president, another officer, or applicable court fiduciary signs under the general filing rule (§§ 490.120(6)-(7), 490.502) |
| Statement contents, signer, consent, and filing | State corporation name, current street/mailing office addresses, new addresses if changed, current agent, new agent plus written consent if changed, and post-change address identity; current form adds agent email, consent/notice signatures, signer capacity/date/phone, and one-copy paper, fax, or Fast Track routes (§§ 490.120, 490.502; Form 635_0119) |
| Registered-office and agent-office address rules | Iowa office may be a place of business; filed record gives street and mailing addresses, and both must match the corresponding agent business- office addresses after a change; cited provisions state no separate normal- hours or categorical P.O.-box ban (§§ 490.501-.502) |
| Agent-initiated, bulk, and commercial-agent changes | Agent whose business address changes gives signed written entity notice and files signed statement; may file per corporation or one statement for all named corporations and mail each a copy; separate notarized affidavit can remove unauthorized agent/name/address/email information immediately; no separate commercial-agent listing appears (§ 490.502(2)-(3); 2026 Iowa Acts ch. 1145, § 23) |
| Agent resignation, notice, delay, and successor gap | Agent signs statement naming corporation, agent, resignation, and notice address, then promptly notifies corporation; effective earlier of 12:01 a.m. on day 31 after filing or successor designation; no fee, good standing not required, and contract rights survive (§§ 490.122(1)(i), 490.503; Form 635_0987) |
| Effective time, fee, report, and correction routes | Ordinary change defaults to filing time and may delay at most 90 days; corporation, agent-address, resignation, and unauthorized-removal filings are free; $15/$50/$125/$200 expedite tiers; $60 biennial report may carry a compliant change; $5 correction generally relates back subject to reliance (§§ 490.122-.124, 490.1621; 2026 SF 629) |
| Service, default, dissolution, foreign, and contract boundaries | If no agent or reasonable diligence fails, certified/registered mail goes to corporate secretary at principal office, then SOS service by duplicate copies and $5 if that route fails; ordinary 60-day agent/office or notice lapse plus 60-day post-notice cure can end in administrative dissolution; dissolution does not terminate agent authority (§§ 490.122(2), 490.504, 490.1420-.1421, as amended) |
Requirements one by one
Iowa keeps the registered office, agent, and ordinary corporation in one act
Iowa Code § 490.140(6) defines the ordinary domestic business corporation as a for-profit corporation incorporated under chapter 490. Iowa Code § 490.501 then requires every corporation covered by the office-and-agent subchapter to continuously maintain both an Iowa registered office and a registered agent.
The agent may be an Iowa-resident individual, a domestic or foreign corporation, or an "eligible entity." Section 490.140(17) defines that last class as a domestic or foreign unincorporated entity or nonprofit corporation. A foreign corporation or foreign eligible entity must be registered to do business in Iowa. In every case the agent's business office is identical with the registered office. The office may also be one of the corporation's places of business.
The corporation files a detailed no-fee statement and obtains agent consent
Under Iowa Code § 490.502(1), the statement supplies the corporation's name, the current registered office's street and mailing addresses, new addresses if the office changes, the current agent, and the replacement agent if the agent changes. The new agent's written consent appears on or is attached to the statement. The filing also states that, after the change, both the street and mailing addresses of the registered office and the agent's business office are identical.
The change section states no separate board resolution, board vote, or shareholder approval threshold. Iowa Code § 490.120(4)-(10) instead governs execution: the board chair, president, or another officer signs, with a receiver, trustee, or other court-appointed fiduciary signing when applicable. The signer states name and capacity; a seal, attestation, acknowledgment, or verification is not generally required. Electronic delivery is available to the extent the Secretary permits.
Current Form 635_0119 adds the new agent's email address, a consent signature or separate consent, an agent notice signature when the agent is moving its own office, and the authorized representative's date, printed name, capacity, and telephone number. Its instructions call for one paper copy by delivery or fax; the forms page and Fast Track guidance also provide an online route. Iowa Code Iowa Code § 490.122(1)-(2) and the current forms page make the corporation's standalone statement free.
An agent may move one Iowa record or many through one statement
Iowa Code § 490.502(2) requires an agent whose business-office street or mailing address changes to send signed written notice to the corporation and file a signed statement that supplies the ordinary change information and states that the corporation was notified. Under § 490.502(3), the agent may file separately for each corporation or use one statement for every named corporation. The single statement is agent-signed, does not require replacement-agent consent, and recites that a copy was mailed to each corporation.
This is a bulk address-change route, not a commercial-agent listing system. Chapter 490's complete office-and-agent subchapter contains no separate commercial-agent classification or commercial-listing election.
Resignation ends on day 31 unless a successor arrives first
Under Iowa Code § 490.503, the agent signs and files a statement naming the corporation and agent, stating the resignation, and giving the address where the agent will deliver notice. The agent must promptly tell the corporation the date the resignation statement was delivered for filing.
The appointment ends at the earlier of 12:01 a.m. on the 31st day after the filing day or the corporation's designation of a new agent. The agent may resign even if the corporation is not in good standing. Once effective, the agent has no chapter 490 responsibility for later-tendered matters, but the resignation does not erase either side's contractual rights.
Current Form 635_0987 also asks whether the registered office is discontinued and requires a certificate that the statement was sent by certified mail to the corporation at its principal place of business and, if the office continues, to the registered office. The filing is free under Iowa Code § 490.122(1)(i).
A July 2026 affidavit is different from resignation or a corporation change
Sections 20 through 24 of 2026 Iowa Acts chapter 1145 took effect July 1, 2026. In particular, 2026 Iowa Acts ch. 1145, § 23 (Iowa Code § 490.1621A) created the route that lets a person file a notarized, sworn affidavit when the person's name, street address, mailing address, or email address was used without authorization as registered-agent or principal-office information. The affidavit identifies the corporation and business number, gives the affiant's mailing address, specifies the unauthorized information, and states the lack of authorization.
The Secretary conducts an administrative review. If the filing was unauthorized, the Secretary promptly files a no-fee removal statement and stops listing the information. The removal is immediate; when it concerns the agent or agent address, the statutory notice says the corporation is without that agent or address. The current Affidavit of Unauthorized Use requires a notary and warns that an incomplete form will be returned without action. This route corrects unauthorized public-record use; it is not the corporation's voluntary change statement and does not use the resignation delay.
Filing time, reports, corrections, and expedited service use separate rules
Except where the office-and-agent provisions supply a different event, Iowa Code § 490.123 makes an accepted document effective when filed, at a later time on the filing date, or on a specified delayed date no more than 90 days later. That general rule governs an ordinary § 490.502 change; § 490.503 supplies the different resignation clock.
Iowa Code § 490.1621 allows a compliant agent or office change in the biennial report. A domestic corporation reports between January 1 and April 1 of the applicable even-numbered year, and the report costs $60 under § 490.122(1)(ad). The standalone corporation change, agent-address change, resignation, and unauthorized-use affidavit are all free.
Iowa Code § 490.123 and § 490.124 govern timing and correction. Section 490.124 uses $5 articles of correction for an inaccuracy, defective execution, or defective electronic transmission in an already filed document. The correction generally relates back, except against a person who relied on the uncorrected document and would be adversely affected. It is not a substitute for reporting a later real-world agent or office change.
Enrolled 2026 SF 629, § 1 amended Iowa Code § 9.15 effective July 1. The optional expedite surcharges are $15 for five-day, $50 for two-day, $125 for same-day, and $200 for one-hour service, each added per document to any filing fee.
Iowa tries corporate mail before substitute service on the Secretary
Iowa Code § 490.504 first makes the registered agent the service agent. If the corporation has no agent or reasonable diligence cannot serve the agent, registered or certified mail, return receipt requested, goes to the corporate secretary at the principal office. Service is perfected at the earliest of actual receipt, the signed return-receipt date, or five days after a correctly addressed, postpaid mailing.
If neither the agent nor that corporate-mail route works, the Secretary of State becomes the service agent. The serving party delivers duplicate copies; the Secretary forwards one by registered or certified mail to the last recorded address. Iowa Code § 490.122(2) sets a $5 SOS service fee. Section 490.504 preserves other legally available service methods.
An ordinary agent lapse uses a 60-day ground and a second 60-day cure
Iowa Code § 490.1420 and § 490.1421 create the ordinary administrative-dissolution path. Section 490.1420(3)-(4) supplies the ground after the corporation has lacked an agent or office for at least 60 days, or the Secretary has not been notified within 60 days of an agent or office change, resignation, or office discontinuance. Under current § 490.1421(1)-(2), as amended by chapter 1145, the Secretary serves written notice and the corporation has another 60 days after service to correct or disprove the ordinary ground. Only then does the Secretary administratively dissolve it.
2026 Iowa Acts ch. 1145, §§ 20-22 (Iowa Code §§ 490.1420-.1421) also added a separate immediate-dissolution route for a corporation that concedes a chapter violation through fraud-related interrogatories. That is not the ordinary consequence of a registered-agent vacancy. Administrative dissolution does not itself terminate the authority of an agent who remains. Reinstatement, foreign-corporation termination, provider contracts, and disputes over earlier service stay outside this filing survey.
What trips people up
- The resignation is not automatically effective when filed. It waits until 12:01 a.m. on day 31 unless a successor is designated earlier.
- The July 2026 unauthorized-use route is not another resignation form. It can remove the challenged information immediately after agency review, and a resulting vacancy then faces the separate default clocks.
- The agent's bulk move changes addresses for named corporations; it is not a commercial-agent registration system and does not appoint a different agent.
- A $5 correction addresses a defect in what was filed. A later office move or agent replacement uses the statement of change or a compliant biennial report.
Common questions
Does SOS acceptance prove the agent information is legally correct?
No. Iowa Code § 490.125 and § 490.126 govern filing and refusal. Section 490.125(4) says the filing duty is ministerial and acceptance or refusal creates no presumption that the document complies or that its information is correct. 2026 Iowa Acts ch. 1145, §§ 18-19 also permit the Secretary to require mail or in-person delivery when credible information suggests a fraudulent filing.
What if the Secretary refuses to file the statement?
Iowa Code § 490.126 permits the person who delivered it to petition the district court in the county of the corporation's Iowa principal office, or its registered office if it has no Iowa principal office. The refused document and the Secretary's written explanation accompany the petition, and the court may order filing or other appropriate action.
Statutes and sources
- Iowa Code 2026, Chapter 490
- 2026 Iowa Acts chapter 1145
- Enrolled 2026 SF 629
- Iowa Secretary of State, Form 635_0119 Statement of Change
- Iowa Secretary of State, Form 635_0987 Statement of Resignation
- Iowa Secretary of State, Affidavit of Unauthorized Use
- Iowa Secretary of State, Business Entity Forms and Fees
- Iowa Secretary of State, Preclearance and Expedited Services
Source links
Every statute quoted above, linked, with the date we checked it.
What does Iowa law mean for your facts?
You just read the general rule. Ask your own question and see which parts of current Iowa law apply to your situation, with citations you can check.
Opens in Ezel Pro.
- Starts from the statutes this survey is built on
- Cites every source it relies on, so you can verify it
- Chat, drafting and research in one workspace