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The simple route · Texas

3 Best Foreign Registration Services in Texas (2026), Step by Step

Start with this 2026 ranking of foreign registration services in Texas: Texas Registered Agent.ai ($199), TX Registered Agent.org ($199) and Mainstay Filing ($199), in that order. Plan on $750 for the state and $397 to $497 in service fees across three years.
Written by the Simple Filing Guide editorial team

Four facts to know

Cost to register
$750
Certificate of good standing?
Not requested
Afterward
No fee, Public Information Report
First choices
Texas Registered Agent.ai, TX Registered Agent.org then Mainstay Filing

Texas: the ranking

The scoring is laid out on this page.

#1 Number 1

1. Texas Registered Agent.ai: best for registering in this state only

Year one $199; later years $99

Why Texas Registered Agent.ai first? Because $199 over the state fee at the start, then $99 yearly.

Compare the three-year totals: it lands under Mainstay Filing, and cost is the check we weigh most.

Checklist: what is included
  • Foreign filing submitted
  • Year-one agent service
What works
  • Only $199 to register
  • Year one of the agent comes with it
  • $99 a year from year two
Gaps
  • You need another company for your home state
Go to Texas Registered Agent.ai Partner link. We may earn money if you buy.
#2 In-state option

2. TX Registered Agent.org: best for a one-state add-on

Year one $199; later years $99

TX Registered Agent.org follows since $199 over the state fee at the start, then $99 yearly.

It charges the same as Texas Registered Agent.ai, so the order between them is a close call.

Checklist: what is included
  • Foreign filing submitted
  • Year-one agent service
What works
  • Only $199 to register
  • Year one of the agent comes with it
  • $99 a year from year two
Gaps
  • You need another company for your home state
Go to TX Registered Agent.org Partner link. We may earn money if you buy.
#3 Goes where you go

3. Mainstay Filing: best for LLCs adding more states

Year one $199; later years $149

In third place, Mainstay Filing, where $199 over the state fee registers you, with the registered agent free in year one and $149 a year after.

Texas Registered Agent.ai is $100 lower across three years, which is enough to rank above it.

Plan on a free registered agent in year one and $149 a year after, in any state.

Checklist: what is included
  • State registration done for you
  • Registered agent, covered in year one
  • No change in price by state
What works
  • Agent costs nothing the first year
  • The price does not change by state
  • $199 on top of Texas's fee
Gaps
  • Pay $50 more a year for the agent
Go to Mainstay Filing Partner link. We may earn money if you buy.

Compare the picks

#CompanyFirst-year priceYearly afterTotal for 3 yearsThe price covers
1 Texas Registered Agent.ai $199$99/yr$397foreign filing submitted; Year-one agent service Go to Texas Registered Agent.ai Partner link. We may earn money if you buy.
2 TX Registered Agent.org $199$99/yr$397foreign filing submitted; Year-one agent service Go to TX Registered Agent.org Partner link. We may earn money if you buy.
3 Mainstay Filing $199$149/yr$497state registration done for you; registered agent, covered in year one; no change in price by state Go to Mainstay Filing Partner link. We may earn money if you buy.

Company prices from November 13, 2026, before state fees.

Work through these

At what point is registration required?

If your LLC was formed in another state and will operate in Texas, register first.

Doing business unregistered risks it has no standing to bring its own lawsuits (BOC 9.051(b)).

comptroller.texas.gov / October 2026 / confirmed

What does a foreign registration cost?

Doing it yourself costs $750. With a service, add $199.

Across three years the state's total comes to $750. sos.state.tx.us / October 2026 / confirmed

What do I submit?

File the Application for Registration of a Foreign Limited Liability Company (Form 304) with the Texas Secretary of State. That single filing registers the LLC.

The state does not request a certificate from home.

What does staying registered cost?

Add the Public Information Report to your calendar (no fee).

Filings come due May 15.

What decided the ranking?

Texas Registered Agent.ai leads on total for three years, which carries 37% of our score.

Start with total for three years, then filing jobs included, then three smaller checks.

Compare the totals: Texas Registered Agent.ai runs $397 for three years, $100 below Mainstay Filing.

How we rank

Texas checklist, with sources

StepAmount or ruleOfficial source
Fee charged by the state $750sos.state.tx.us / October 2026 / confirmed
Home-state certificate Not requestedcomptroller.texas.gov / October 2026 / confirmed
State fees across three years $750Our sum of the rows above

Every amount above links to its official source. The last row is our own total of the filing, two reports and any minimum tax, without variable costs like publication.

Related questions

What about the state where I formed the LLC?

Keep one at home. Mainstay Filing serves both states, and a local company serves only one.

Over three years, what does each charge?

Texas Registered Agent.ai adds up to $397, TX Registered Agent.org adds up to $397, Mainstay Filing adds up to $497, with state fees on top.

Where do these figures come from?

Every state fee links to its official page, and every service price is read from the company's own site.

Is a service required by law?

No. A service charges for labor and the agent role, not for anything the state demands.

Will a service file the registration for me?

All of them do, and the state fee stays identical.

Who is your first choice in Texas?

Texas Registered Agent.ai comes first: registering costs $199 over the state fee, agent covered in year one, then $99 a year. Next, TX Registered Agent.org and Mainstay Filing.

Verify these facts

  1. Source for Texas yearly filing: Annual report: comptroller.texas.gov, October 2026
  2. Source for Texas report due date: statutes.capitol.texas.gov, August 2026
  3. Source for Tex: sos.texas.gov, August 2026
  4. Source for Texas registered agent statute: sos.texas.gov, October 2026
  5. Source for Texas Secretary of State, foreign: sos.state.tx.us, October 2026
  6. Source for Form 304 instructions: sos.state.tx.us, October 2026
  7. Source for Business Organizations Code, Chapter 9: statutes.capitol.texas.gov, October 2026
  8. Source for Texas Comptroller, franchise tax: comptroller.texas.gov, October 2026
  9. Source for Texas Business Organizations Code, Chapter: tcss.legis.texas.gov, November 2026
  10. pricing page from Texas Registered Agent.ai, checked November 13, 2026
  11. pricing page from TX Registered Agent.org, checked November 13, 2026
  12. Texas service page from Mainstay Filing, checked November 13, 2026