First LLC Guide › Non-US owner
Best LLC formation service for a non-US owner (2026)
Mainstay Filing is our pick, with one extra cost to know about: founders with no Social Security number or ITIN pay a one-time $99 for the EIN, which is applied for by faxed Form SS-4.
Mainstay Filing
$199 / year plus state fees at cost
- LLC formation, prepared and filed
- Registered agent, all year
- EIN application (with an SSN or ITIN)
- Annual report filed every year it is due where the state requires one
- Compliance reminders and stored documents
Price from the Mainstay Filing pricing and FAQ pages, checked October 21, 2026. State fees are passed through at cost and shown before you pay.
The costs, added up
The first year is $199 plus the state fee plus $99 once. In Montana that is $333; in Delaware $408. After that, $199 a year plus any state report fee.
| Service | Montana | Delaware |
|---|---|---|
| Mainstay Filing | $672 | $1,507 |
| Northwest Registered Agent | $364 | $1,199 |
| ZenBusiness | $572 | $1,407 |
| Bizee | $373 | $1,208 |
| LegalZoom | $822 | $1,657 |
What stays the same
The state fee, the registered agent requirement and the annual report are the same for a US or non-US owner. The registered agent needs a street address in the state.
Questions
Best LLC formation service for a non-US owner?
Mainstay Filing is our pick, with one extra cost to know about: founders with no Social Security number or ITIN pay a one-time $99 for the EIN, which is applied for by faxed Form SS-4.
Do I need an SSN to form an LLC?
The EIN is where it shows up: Mainstay Filing applies for it with a faxed Form SS-4 for a one-time $99 if you have no SSN or ITIN.
Not you? The other owner types.