3 Best Foreign Registration Services in California (2026): The Straight Story
If you need foreign registration services in California in 2026, here's the order we'd go in: California Registered Agent.ai ($199), Mainstay Filing ($199) and CA Registered Agent.org ($199). Every option pays California $70, then services run $397 to $497 over three years.
Straight from the LLC Straight Talk editorial team
Quick facts
The short of it
State fee to register
$70
Bring a home-state certificate?
Yes, attach it (180 day age cap)
Afterward
$20, Statement of Information, Form LLC-12
Who we'd use
California Registered Agent.ai, Mainstay Filing then CA Registered Agent.org
Read November 13, 2026. Three years is year one plus two renewals.
What you need to know
When does an out-of-state LLC have to register?
Before your LLC does business in California. You register with the California Secretary of State, Business Entities, then you start working.
An unregistered LLC risks it can't act as a plaintiff (Corp. Code 17708.07(a)).
ftb.ca.gov, confirmed October 2026, if you don't believe us
What's it cost to register?
$70 goes to the state. A service is $199 more.
Add three years of state fees, registration included, and you're at $2,490. bpd.cdn.sos.ca.gov, confirmed October 2026, if you don't believe us
What registers the LLC?
The form's the Application to Register a Foreign Limited Liability Company (LLC) (Form LLC-5), and the California Secretary of State, Business Entities gets it.
Attach certificate of good standing (existence or status) from the home state issued within the last 180 days.
What do I owe once I'm registered?
The state wants a Statement of Information, Form LLC-12 later, and it's $20.
Straight from the state, the deadline is Within 90 days of registering, then every 2 years.
Why this order?
California Registered Agent.ai scores best on money out the door in three years, and that test is worth 35%.
We run five tests: money out the door in three years (35%), jobs the price actually covers (30%), no hunting for the price (14%), no surprise at renewal (11%) and where it works (10%).
Do the math: California Registered Agent.ai is $397 for three years, and that's $100 less than Mainstay Filing.
ftb.ca.gov, confirmed October 2026, if you don't believe us
Statement of Information, Form LLC-12
$20
ftb.ca.gov, confirmed October 2026, if you don't believe us
Yearly minimum tax
$800 a year
ftb.ca.gov, confirmed October 2026, if you don't believe us
What the state collects in three years
$2,490
The rows above, added up
Every line above links to the state's own page. The total's ours: the filing, two reports and any minimum tax.
More questions
Do I still need an agent at home?
Each state sets its own rule, so keep an agent at home too. A provider that works in every state, like Mainstay Filing, can handle both.
What do the picks cost over three years?
California Registered Agent.ai will set you back $397, and Mainstay Filing will set you back $497, and CA Registered Agent.org will set you back $397, before state fees.
Where do these numbers come from?
State fees come from California's official documents, and service fees come from each company's own price page. Both are dated here.
Do I have to use a service?
No. You can file with the state yourself. A service saves you time and can be your agent, but nothing makes you hire one.
Can I pay somebody to register the LLC?
All of them do, so the service fee's the only difference.
Who's first in California?
California Registered Agent.ai is first: the service fee's $199, with the first year of agent service included, and renewal is $99. Then comes Mainstay Filing and CA Registered Agent.org.