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Quick answer · Texas

3 Best Foreign Registration Services in Texas (2026) and the Facts Behind Them

Best foreign registration services in Texas for 2026: Mainstay Filing ($199), Texas Registered Agent.ai ($199) and TX Registered Agent.org ($199), ranked in that order. Registering costs $750 at Texas, whoever files, plus $397 to $497 to a service over three years.

LLC Q and A editorial team ·

At a glance

State registration fee
$750
Home-state certificate?
No
After registering
None, Public Information Report
Pick
Mainstay Filing, Texas Registered Agent.ai then TX Registered Agent.org

Texas: ranked picks

Scoring is explained on the method page.
1Top pick

1. Mainstay Filing: best for registering in several states

Register for $199; agent renews at $149

#1 in Texas: Mainstay Filing, because $199 above the state fee registers you, the registered agent is free in year one and $149 a year after.

The $100 premium over Texas Registered Agent.ai across three years buys coverage outside Texas.

Registered agent: free in year one, $149 a year after, in any state.

Price covers

  • Registration filing
  • Registered agent, no charge in year one
  • One fee for all fifty states

For

  • No registered agent fee in year one
  • Ready for state number three
  • $199 plus Texas's fee

Against

  • Texas Registered Agent.ai renews its agent $50 lower
Mainstay Filing sitePartner link. We may earn money if you buy.
2Texas specialist

2. Texas Registered Agent.ai: best for one extra state

Register for $199; agent renews at $99

Why Texas Registered Agent.ai is second: $199 files the registration and the agent renews at $99.

Price covers

  • Texas registration filing
  • Agent for year one

For

  • Year-one agent included
  • Service fee $199
  • $99/yr from year two

Against

  • Two states, two providers
Texas Registered Agent.ai sitePartner link. We may earn money if you buy.
3Texas specialist

3. TX Registered Agent.org: best for one more state only

Register for $199; agent renews at $99

Why TX Registered Agent.org is third: $199 files the registration and the agent renews at $99.

Same published prices as Texas Registered Agent.ai, so the order between them is close.

Price covers

  • Texas registration filing
  • Agent for year one

For

  • Service fee $199
  • $99/yr from year two
  • Year-one agent included

Against

  • Two states, two providers
TX Registered Agent.org sitePartner link. We may earn money if you buy.

Comparison

#ServiceYear 1Renewal3-year costIncludes
1Mainstay Filing$199$149/yr$497registration filing; registered agent, no charge in year one; one fee for all fifty statesMainstay Filing sitePartner link. We may earn money if you buy.
2Texas Registered Agent.ai$199$99/yr$397texas registration filing; agent for year oneTexas Registered Agent.ai sitePartner link. We may earn money if you buy.
3TX Registered Agent.org$199$99/yr$397texas registration filing; agent for year oneTX Registered Agent.org sitePartner link. We may earn money if you buy.
Prices as of November 13, 2026. State fees are in the checklist below.

Questions and replies

Must my LLC register here?

Before it does business in Texas, with the Texas Secretary of State.

Unregistered, an LLC may face it cannot sue in Texas courts until registered (BOC 9.051(b)).

source of record: comptroller.texas.gov, confirmed October 2026

Cost to register?

$750 at the state. A service adds $199.

State fees reach $750 over three years, counting any recurring report. source of record: sos.state.tx.us, confirmed October 2026

Which form, filed where?

Lodge the Application for Registration of a Foreign Limited Liability Company (Form 304) at the Texas Secretary of State; one filing registers the LLC.

No home-state certificate is required.

What is due after registering?

Expect the Public Information Report (no fee).

Due: May 15.

Why this order?

Chores removed from your list (26%) goes to Mainstay Filing.

62% of the total is three-year price plus chores removed from your list.

An out-of-state LLC works in two states; the first pick serves both.

The five criteria

What Texas requires of a foreign LLC

ItemRule or amountSource
Fee to register$750source of record: sos.state.tx.us, confirmed October 2026
Good standing certificateNosource of record: comptroller.texas.gov, confirmed October 2026
Three-year state total$750Total of the rows above
Rows link to official sources; the final row is our own addition of filing, two reports and any minimum tax.

Also asked

Is an agent needed at home too?

Yes. Each state has its own rule. Mainstay Filing serves both from one account.

Three-year cost of each?

Mainstay Filing will run $497, Texas Registered Agent.ai will run $397, TX Registered Agent.org will run $397, with state fees on top.

Where do the numbers come from?

State fees come from Texas's official documents. Service prices come from each company's price page. Both are dated here.

Is a service required?

No. Owners can file directly. A service saves time and can act as agent.

Can someone register the LLC for me?

All of them do; only the service fee differs.

Which foreign registration service should I use in Texas?

Rank Mainstay Filing ahead of Texas Registered Agent.ai and TX Registered Agent.org.

Sources

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