Reviewed & Updated September 2026
EIN for Costa Rican LLC Owners: Complete 2026 Application Guide
How Costa Rican founders get a US tax ID, and why the territorial system leaves your LLC's foreign income untouched
Quick Summary
- Country
- Costa Rica
Fax and mail as backups
Fax reaches 855-215-1627 (from the US) or 304-707-9471 (from outside); mail routes through the Cincinnati service center. Both now typically run 4-6 weeks. The phone route saves a month or more compared to either.
What to do once your EIN arrives
With the EIN confirmed, open a US business bank account, connect your payment processor, and calendar your Form 5472/1120 deadline right away. Since Costa Rica's own tax exposure on this income is minimal, most of your ongoing compliance attention will be on the US filing side rather than the Costa Rican side.
Applying by phone from Costa Rica
Call the IRS International EIN line at 267-941-1099, open 6am-11pm US Eastern Time. Calling from Costa Rica works without issue — this line exists specifically for foreign applicants without a US SSN or ITIN. Budget 45-60 minutes for the full call including hold time. You'll confirm your entity's legal name, formation state and date, a short business purpose, and your name and Costa Rican address as the responsible party, receiving your EIN verbally before hanging up.
The narrow exception worth knowing about
There's a limited carve-out that can bring foreign passive income into Costa Rica's tax net if it's routed through a structure lacking real economic substance as part of a multinational group arrangement — a rule introduced under international pressure to curb aggressive tax planning. For an individual founder personally holding a single-member US LLC that genuinely operates and generates real business income, this exception typically doesn't apply, but it's worth confirming with a Costa Rican tax advisor if your structure involves multiple entities.
Protecting your CP 575 confirmation letter
A CP 575 letter arrives by mail a few weeks after your call. If lost, the IRS won't reissue the original, but calling the same EIN line gets you a 147C verification letter, accepted everywhere a CP 575 would be.
Line 7b: what to write instead of a cédula
Form SS-4's Line 7b asks for the responsible party's SSN, ITIN, or EIN. As a Costa Rican applicant, you write "Foreign" or "N/A" — the standard, expected entry that won't delay your application.
Why your LLC needs an EIN before it can function
A US LLC's formation certificate proves it legally exists, but an EIN — the nine-digit federal tax ID the IRS assigns to the entity — is what actually lets it operate. Without one, no US bank will open an account, no payment processor will verify it, and no annual return can be filed. This has nothing to do with your Costa Rican cédula — the EIN identifies the business, not you.
How this compares to the Digital Nomad Visa route
If you're in Costa Rica under the Digital Nomad Visa (Law 10008), foreign-earned income is explicitly exempt from local tax even if you stay long enough to otherwise qualify as a tax resident — though this is somewhat redundant given Costa Rica's underlying territorial system already exempts foreign income for anyone, visa or not.
Costa Rica's territorial system: genuinely clean for most founders
Under Article 1 of Costa Rica's Income Tax Law No. 7092, only income generated within Costa Rican territory is considered Costa Rican-source income and subject to tax. Foreign-source income — including profits your US LLC earns from clients or customers outside Costa Rica — falls entirely outside this system, regardless of your residency status.
The $25,000 US filing requirement, independent of Costa Rica's tax treatment
Even though Costa Rica doesn't tax your LLC's foreign-source income, US rules still require an annual Form 5472 alongside a pro forma Form 1120 for any foreign-owned single-member LLC, generally due April 15 (or October 15 with an extension). Missing this filing triggers a minimum $25,000 penalty regardless of profitability — this is a US disclosure requirement entirely independent of Costa Rica's tax rules.
Requirements
| Requirement | Needed |
|---|---|
| US Social Security Number | |
| ITIN | |
| LLC formation documents | |
| Responsible party's Costa Rican address | |
| US registered agent address |
Costs
| Item | Cost |
|---|---|
| EIN Priority (bundled with Global Launch formation) | $99 |
| EIN Follow-up (LLC already formed) | $129 |
| DIY phone application | $0 (your time only) |
Who Should Choose
DIY phone application
Free, and manageable if you're comfortable with a 45-60 minute international call.
EasyBrise EIN Follow-up ($129)
For founders whose LLC is already formed and want the IRS call handled for them.
EasyBrise EIN Priority ($99, bundled)
For founders forming their LLC now who want the EIN done in the same workflow.
Comparison
| Method | Who Can Use It | Typical Time |
|---|---|---|
| Phone (267-941-1099) | Any foreign responsible party | 45-60 minutes |
| Fax | Foreign or US applicants | 4-6 weeks |
| Foreign or US applicants | 4-6 weeks | |
| Online IRS tool | US-based SSN/ITIN holders only | Not available to most Costa Rican founders |
Banking
Mercury
Popular with non-resident founders; requires US LLC + EIN; no US visit needed
Relay
Remote-friendly for non-residents; requires formed US entity
Frequently Asked Questions
More guides for founders in Costa Rica
Or browse all formation guides by country.
Reviewed by EasyBrise Research Team · Updated September 2026
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