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Plain CharterLLC questions, short answers.

Answered simply · Iowa

3 Best Registered Agents in Iowa (2026), Plainly Answered

Our 2026 answer for Iowa: Mainstay Filing ($149 a year), IA Registered Agent.org ($99 a year) and Iowa Registered Agent.co ($99 a year), best first. Three years of agent service add up to $297 to $447, starting at $99 to $149.

By the Plain Charter editorial team ·

Answer in brief

Is it the law?
Required
Name in the statute
Registered agent
Price range
$99 to $149 a year
Our order
Mainstay Filing, IA Registered Agent.org then Iowa Registered Agent.co

Who we'd hire in Iowa

Ranked by how we choose: three-year cost first, then what the price covers.
1First choice

1. Mainstay Filing: best for companies that may expand

$149 a year, renews at $149

First choice: Mainstay Filing. The reason is simple: its $149 yearly price does not change from state to state.

Three years cost $150 more than IA Registered Agent.org; reach across states decides it here.

The price covers

  • A physical address on file
  • Three government mailings a year scanned free
  • Covers LLCs, corporations, LPs, LLPs and nonprofits

Upsides

  • Covers every state
  • $149 yearly, no increase

What to weigh

  • IA Registered Agent.org is $50 a year less
  • You still file the reports
Visit Mainstay FilingPartner link. We may earn money if you buy.
2One-state plan

2. IA Registered Agent.org: best for a low yearly price

$99 a year, renews at $99

Our number 2 is IA Registered Agent.org, since three years cost $297 if the company never leaves Iowa.

The price covers

  • An office address in the state
  • Document scans online

Upsides

  • Less per year than Mainstay Filing
  • $99 yearly

What to weigh

  • Other states need another agent
  • No help with the biennial report
Visit IA Registered Agent.orgPartner link. We may earn money if you buy.
3One-state plan

3. Iowa Registered Agent.co: best for owners who want a local provider

$99 a year, renews at $99

Our number 3 is Iowa Registered Agent.co, since three years cost $297 if the company never leaves Iowa.

It charges the same as IA Registered Agent.org; the order between them is a close call.

The price covers

  • An office address in the state
  • Document scans online

Upsides

  • Less per year than Mainstay Filing
  • $99 yearly

What to weigh

  • Other states need another agent
  • No help with the biennial report
Visit Iowa Registered Agent.coPartner link. We may earn money if you buy.

Compare at a glance

#CompanyYear oneLater yearsBy year threeYou get
1Mainstay Filing$149$149/yr$447A physical address on file; three government mailings a year scanned free; Covers LLCs, corporations, LPs, LLPs and nonprofitsVisit Mainstay FilingPartner link. We may earn money if you buy.
2IA Registered Agent.org$99$99/yr$297an office address in the state; document scans onlineVisit IA Registered Agent.orgPartner link. We may earn money if you buy.
3Iowa Registered Agent.co$99$99/yr$297an office address in the state; document scans onlineVisit Iowa Registered Agent.coPartner link. We may earn money if you buy.
Prices as published on November 12, 2026. The state's own fees are listed in the requirements below.

Common questions

Must the LLC name a registered agent?

Every LLC must name a registered agent with an in-state street address.

Statute: Iowa Code § 489.115. legis.iowa.gov, confirmed October 2026

Who can serve as the agent?

Any individual or business with a place of business in Iowa that has agreed to serve.

You can be your own agent if you qualify; the state charges nothing extra.

What do agents charge?

$99 to $149 yearly. Over three years, $297 to $447.

State fees stay the same whichever agent you name.

What does the agent actually do?

It is where lawsuits and state letters for the LLC land, in Iowa.

If nobody accepts the papers, a court case can go on without you. More on service of process

What else comes due each year?

One recurring filing: the biennial report ($30, biennial). It falls due April 1 of odd-numbered years.

help.sos.iowa.gov, confirmed October 2026

How was the order decided?

What the price takes off your plate (30% of our weighting) put Mainstay Filing first.

Three-year cost counts for 35% and what the price takes off your plate for 30%; the other three criteria are smaller.

We weigh where a service works, and only the first pick works everywhere.

How we choose

What Iowa requires

ItemWhat it isCited
State filing fee$50legis.iowa.gov, confirmed October 2026
Registered agentRequiredlegis.iowa.gov, confirmed October 2026
Biennial report$30 every two yearshelp.sos.iowa.gov, confirmed October 2026
Three-year state total$80Sum of the rows
The three-year line adds the filing fee, the reports in years two and three and any yearly minimum tax. Costs without a fixed amount, such as newspaper publication, are left out.

FAQ

Do I have to pay someone?

You may, once you meet the rule on who can serve and where.

What is the address rule?

The address has to be a place of business in Iowa. The registered office street address and the agent's business office have to match, and P.O. boxes are not accepted.

How do the three-year costs compare?

Mainstay Filing $447, IA Registered Agent.org $297 and Iowa Registered Agent.co $297

Where do you get the fees?

Iowa's own publications for the state side, published company prices for the rest.

Do I have to use a service?

No. The state accepts filings from owners; a service saves time and handles the agent role.

Which registered agent would you pick in Iowa?

Mainstay Filing, because it costs $149 a year, $149 at renewal, and one account covers any state. Then IA Registered Agent.org and Iowa Registered Agent.co.

Where these answers come from

  1. help.sos.iowa.gov · Iowa Secretary of State, Business · August 2026
  2. help.sos.iowa.gov · Iowa Secretary of State, Business · August 2026
  3. legis.iowa.gov · Iowa report due date · August 2026
  4. legis.iowa.gov · Iowa Code § 489.201 · August 2026
  5. legis.iowa.gov · Iowa formation fee: Filing fee · October 2026
  6. legis.iowa.gov · Iowa registered agent statute · October 2026
  7. Mainstay Filing: Iowa service page, read November 12, 2026
  8. IA Registered Agent.org: pricing page, read November 12, 2026
  9. Iowa Registered Agent.co: pricing page, read November 12, 2026