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Review · All states

Mainstay Filing Review (2026)

Mainstay Filing's formation package is $199 a year, and it renews at $199. That one price covers forming your LLC, acting as your registered agent and filing your annual report, and it includes the EIN application. If you only need the agent, that plan is $149 a year and renews at $149.

By the LLC Review Desk editorial team

Our pick

Mainstay Filing: a good fit for companies in any state

$199 a year, $199 when you renew

The most complete package we looked at: formation, agent and yearly report, all for one flat price.

In the price

  • Your formation, filed for you
  • A registered agent for the full year
  • Your annual report, prepared and filed
  • Your EIN application

What we like

  • Formation, agent and annual report for $199 a year
  • Renews at $199
  • The formation package includes the EIN application
  • Same-business-day scans of papers served on the company, no charge
  • Works in all fifty states

Trade-offs

  • The agent-only plan costs $149 a year, more than single-state agents
  • You only get annual report filing with the formation package
Visit Mainstay FilingPartner link. We may earn money if you buy.

What the $199 package gets you

The package files your formation paperwork, serves as your registered agent for the year and files your yearly state report in every state that has one. That's 44 states. You see state fees at cost before you pay. The service itself costs the same whatever the state or the type of company. Alabama, Arizona, Missouri, New Mexico, Ohio and South Carolina don't have a yearly LLC report, so there the package covers the formation and the agent.

The agent-only plan for $149 a year

Already have a company? You can buy just the agent for $149 a year, and it renews at $149. A few extras: scans of papers served on the company, same business day, no charge, free scans of your first three government letters each year and compliance reminders. Annual report filing comes with the formation package; this plan leaves it to you.

Adding another state: $199 plus the state's fee

Registering an existing company in a new state is $199 plus that state's fee, and the agent is free in year one, then $149 a year.

Where Mainstay Filing lands on LLC Review Desk

Mainstay Filing is our favorite in 28 of 50 registered agent states, 27 of 50 LLC service states and 28 of 50 foreign registration states, and it's first on all three national lists. When a state agent beats it, that agent wins on yearly price alone. Mainstay answers with more included in the price.

Your questions about Mainstay Filing

How much is Mainstay Filing?

$199 a year covers formation, your registered agent and annual report filing, with state fees at cost. Just the agent is $149 a year.

Does Mainstay Filing cost more when I renew?

The formation package renews at $199 and the agent plan renews at $149, so nothing changes from year one.

Will Mainstay Filing file my annual report?

Yes, with the formation package, in any state that requires one. The agent-only plan doesn't.

What states does Mainstay Filing cover?

All fifty, at one price.

Do I get an EIN too?

Yes, the formation package includes the EIN application.

Related pages

Where we got the numbers

  1. Source: Mainstay Filing, pricing, registered agent and state service pages, as of November 12, 2026