How to Get an EIN for a California LLC: The Privacy-First Guide
This article provides general information for educational purposes only. It is not legal advice, does not create an attorney-client relationship, and should not be relied upon as a substitute for consultation with a qualified attorney. Laws vary by state, and individualized guidance is recommended.
Learn how to obtain an EIN for your California LLC while protecting your privacy and avoiding common application mistakes. This guide covers IRS requirements, BOI reporting, and special rules for non-U.S. applicants.
Disclaimer This article provides general information for educational purposes only. It is not legal advice, does not create an attorney-client relationship, and should not be relied upon as a substitute for consultation with a qualified attorney. Laws vary by state, and individualized guidance is recommended.
Getting your EIN is the final hurdle before your California LLC is officially open for business. But here’s the problem: if you rush the application, you might accidentally expose more personal information than necessary.
Obtaining an Employer Identification Number (EIN) is essential for opening a business bank account, hiring employees, and satisfying federal tax requirements. While the process is free and relatively quick, following the proper sequence helps avoid IRS errors and protects your personal information.


The “Pre-Flight” Checklist
Before opening the IRS application, gather everything you’ll need. The IRS online system automatically logs users out after periods of inactivity, so preparation saves time and frustration.
Documents to Have Ready
Document | Why You Need It |
|---|---|
Approved Articles of Organization | Confirms your LLC has been legally formed |
LLC legal name | Must exactly match state records |
Responsible Party information | Required by the IRS |
Social Security Number (SSN) or ITIN | Identifies the Responsible Party |
Business address | Required during the application |
Mailing address | Used for IRS correspondence |
Approved Articles of Organization
Confirms your LLC has been legally formed
LLC legal name
Must exactly match state records
Responsible Party information
Required by the IRS
Social Security Number (SSN) or ITIN
Identifies the Responsible Party
Business address
Required during the application
Mailing address
Used for IRS correspondence
The 35-Character Rule
If your business name or address is particularly long, use standard USPS abbreviations (such as Ave, Blvd, or Ste) to avoid unnecessary truncation in IRS records.
The Privacy Pivot: Protecting Your Address
One of the biggest mistakes new LLC owners make is using their personal home address for every filing.
A thoughtful address strategy can help reduce unnecessary exposure of personal information.
Mailing Address vs. Physical Address
The IRS distinguishes between two different addresses.
Address Type | Purpose |
|---|---|
Physical Address | Where the business actually operates or where the Responsible Party can be reached |
Mailing Address | Where IRS correspondence is sent |
Physical Address
Where the business actually operates or where the Responsible Party can be reached
Mailing Address
Where IRS correspondence is sent
A mailing address may often differ from the physical address, but the physical location generally cannot be a P.O. Box.
The Responsible Party Rule
The IRS requires the Responsible Party to be an actual individual—not another business entity.
This person must have ultimate control over the company and is generally responsible for managing or directing the business.
Applying Through the IRS Online Portal
Applying online is typically the fastest method, with the EIN issued immediately after a successful application.
Application Steps
- Select Limited Liability Company (LLC).
- Enter the number of members.
- Choose the reason for applying (typically “Started a new business”).
- Enter Responsible Party information.
- Complete the address section.
- Submit the application.
- Download and securely save your EIN confirmation immediately.
IRS Online Application Hours
Day | Operating Hours (Eastern Time) |
|---|---|
Monday–Friday | 6:00 a.m. – 1:00 a.m. |
Saturday | 6:00 a.m. – 9:00 p.m. |
Sunday | 6:00 p.m. – 12:00 a.m. |
Monday–Friday
6:00 a.m. – 1:00 a.m.
Saturday
6:00 a.m. – 9:00 p.m.
Sunday
6:00 p.m. – 12:00 a.m.
Save Your Confirmation
Once your application is complete, you’ll receive your EIN confirmation (Form CP-575).
Save multiple copies immediately.
If the confirmation is lost, you’ll typically need to request an IRS Letter 147C before many banks or financial institutions will accept your EIN.
Beneficial Ownership Information (BOI)
Receiving an EIN is not necessarily the final compliance step.
Businesses should determine whether they have any applicable federal Beneficial Ownership Information (BOI) reporting obligations.
The EIN identifies the business for tax purposes, while BOI reporting identifies the individuals who own or control the company.
Applying Without a Social Security Number
International entrepreneurs who do not have an SSN cannot generally use the IRS online application.
Alternative application methods include:
Method | Who Uses It | Typical Processing |
|---|---|---|
Online | Applicants with an SSN or ITIN | Immediate |
Fax (Form SS-4) | Domestic and international applicants | Approximately 4 business days |
Telephone | International applicants | Immediate during the call (where available) |
Any eligible applicant | Several weeks |
Online
Applicants with an SSN or ITIN
Immediate
Fax (Form SS-4)
Domestic and international applicants
Approximately 4 business days
Telephone
International applicants
Immediate during the call (where available)
Any eligible applicant
Several weeks
The California Catch-22: EIN vs. State Business Number
Many new business owners mistakenly assume their EIN and California entity number are the same.
They are not.
Identifier | Issued By | Purpose |
|---|---|---|
Employer Identification Number (EIN) | Internal Revenue Service (IRS) | Federal tax identification |
California Entity Number | California Secretary of State | Identifies the LLC in state records |
California Franchise Tax Account | Franchise Tax Board (FTB) | State tax administration |
Employer Identification Number (EIN)
Internal Revenue Service (IRS)
Federal tax identification
California Entity Number
California Secretary of State
Identifies the LLC in state records
California Franchise Tax Account
Franchise Tax Board (FTB)
State tax administration
Each serves a different purpose, and businesses often need all three throughout the life of the company.
Final Checklist
Before applying, confirm your LLC name matches California state records.
Before considering your EIN process complete, make sure you have:
- Formed your California LLC.
- Gathered all required documents.
- Verified your business name matches state records.
- Identified the Responsible Party.
- Submitted the EIN application.
- Downloaded and securely stored your EIN confirmation.
- Reviewed any applicable BOI reporting requirements.
Following this sequence helps reduce application delays, protects your personal information, and creates a stronger administrative foundation for your California LLC.
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