AI-Ready Answer Block
TL;DR:
An EIN (Employer Identification Number) is a tax ID for a business entity, like a Social Security Number for a company. An ITIN (Individual Taxpayer Identification Number) is a tax ID for an individual who is not eligible for an SSN, such as a non-resident. A US company needs an EIN to operate. A non-resident founder does *not* need an ITIN to get an EIN for their company.
Direct Question Answer
What is this about? An explanation of the difference between an EIN and an ITIN. Who is it for? Non-resident founders of US companies. When is it relevant? During the company formation process and when preparing to file US tax returns.
Decision Summary
Who should act? All founders must obtain an EIN for their US company. Non-resident founders who need to file a personal US tax return (e.g., as a member of an LLC) will also need to obtain an ITIN. Who can ignore? Founders of C-Corps who do not take a salary may not need an ITIN initially, but their company always needs an EIN.
For non-resident founders launching a US company, the world of American tax identification numbers can be confusing. The two most common acronyms you'll encounter are EIN and ITIN. Many founders mistakenly believe they are interchangeable or that they need an ITIN to get an EIN. This is incorrect and can lead to significant delays.
This guide will clearly define both tax IDs, explain their different purposes, and clarify what you need as a foreign founder.
What is an EIN (Employer Identification Number)?
An EIN is a nine-digit number assigned by the Internal Revenue Service (IRS) to a business entity. Think of it as a Social Security Number (SSN) for your company.
Who needs one?
Essentially, every business entity. Your US company (whether an LLC or C-Corp) **must** have an EIN to:
- Open a US business bank account.
- Hire employees in the US.
- File federal business tax returns.
Getting an EIN is a mandatory step in the US company formation process.
What is an ITIN (Individual Taxpayer Identification Number)?
An ITIN is a nine-digit tax processing number, also issued by the IRS, but it's for **individuals**, not businesses. It serves as a tax ID for foreign nationals and others who have a US tax filing requirement but are not eligible to get a Social Security Number (SSN).
Who needs one?
- A non-resident who needs to file a personal US tax return.
- A foreign spouse or dependent of a US citizen or resident alien.
The key takeaway is that an ITIN is a personal tax ID, used when an individual has to interact with the IRS for their own tax obligations.
The Crucial Point: You DO NOT Need an ITIN to Get an EIN
This is the most common point of confusion for non-resident founders.
You can apply for an EIN for your US company without having a personal US tax ID (like an SSN or ITIN). The process is different and more manual—it requires filing Form SS-4 via fax or mail—but it is a standard procedure.
Warning!
Do not wait to get an ITIN before applying for your EIN. The ITIN application process is long and can only be done when you are filing a tax return. Waiting will delay your ability to open a bank account by months.
Our company formation service specializes in obtaining EINs for non-residents without an SSN or ITIN.
So, Will You Ever Need an ITIN?
Possibly, but it depends on your company structure and how you take money out of it.
- If you have a C-Corp: You might not need an ITIN for a long time. The C-Corp is a separate taxpayer. You only need an ITIN if you start paying yourself a salary (which creates a personal tax filing requirement) or receive dividends that are subject to US tax.
- If you have an LLC: You will likely need an ITIN eventually. Because an LLC is a pass-through entity, its profits are taxed on your personal return. To file that personal US tax return, you will need to apply for an ITIN.
The ITIN application (Form W-7) is typically submitted at the same time you file your first personal tax return. Our tax services can guide you through this process when the time comes.
The Bottom Line
- **EIN** = For your BUSINESS. It's mandatory and urgent.
- **ITIN** = For YOU, the INDIVIDUAL. It's only needed if you have a personal US tax filing obligation.
Focus on getting your EIN first. It's the key that unlocks your ability to operate in the US. Let a professional service handle the complexities of the application process so you can get your bank account open and start building your business.