If you're launching a US business as a foreign entrepreneur, you've likely come across two important tax identification numbers: the Employer Identification Number (EIN) and the Individual Taxpayer Identification Number (ITIN).

Because both are issued by the US government and often appear in tax and banking discussions, many founders assume they're interchangeable. They aren't. Understanding the difference between an EIN and an ITIN can save you time, prevent unnecessary applications, and help you build your business correctly from the start.

The good news is that most international entrepreneurs don't need to choose one over the other. In many cases, you'll need only an EIN. In others, you may need both—or neither, depending on your circumstances. This guide explains exactly what an EIN and an ITIN are, how they differ, when each is required, and what global founders should know before applying.

EIN vs ITIN: The Short Answer

Here's the simplest way to understand the difference:

• An EIN identifies a business.
• An ITIN identifies an individual for tax purposes.

Although both are issued by the Internal Revenue Service (IRS), they serve entirely different functions. If you're forming a US LLC, corporation, or partnership, you'll likely need an EIN. If you're an individual who has US tax reporting obligations but is not eligible for a Social Security Number (SSN), you may need an ITIN.

What Is an EIN?

An Employer Identification Number (EIN) is a unique nine-digit federal tax identification number assigned to businesses. Think of it as the business equivalent of a personal tax identification number.

Businesses use an EIN for numerous administrative and financial purposes, including:

• Opening business bank accounts
• Filing federal business tax forms
• Applying for payment processors
• Hiring employees
• Working with vendors
• Registering with financial institutions
• Establishing business credit

Even businesses without employees frequently obtain an EIN because banks and payment providers often require one.

What Is an ITIN?

An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued to individuals who must interact with the US tax system but are not eligible for a Social Security Number.

Unlike an EIN, an ITIN belongs to a person—not a business. The IRS issues ITINs primarily to facilitate tax reporting and compliance.

An ITIN does not:

• Authorize employment in the United States
• Grant immigration status
• Provide Social Security benefits
• Replace an EIN for business identification

Its primary function is personal tax administration.

Key Differences Between an EIN and an ITIN

Although both numbers come from the IRS, their purposes are quite different.

The distinction is simple:

An EIN belongs to your company. An ITIN belongs to you.

Do Foreign Entrepreneurs Need an EIN?

In many cases, yes. International founders commonly obtain an EIN after forming:

• Single-member LLCs
• Multi-member LLCs
• Corporations
• Partnerships

Businesses often need an EIN before they can:

• Open a US business bank account
• Apply for payment processors
• Register with certain financial institutions
• Complete federal tax filings where applicable

For many global founders, obtaining an EIN is one of the first major administrative steps after company formation.

Do Foreign Entrepreneurs Need an ITIN?

Not necessarily. This is one of the most misunderstood aspects of US business formation. Many non-US founders successfully operate US companies without ever obtaining an ITIN.

Whether an ITIN is necessary depends on your individual tax situation—not simply because you own a US company. In other words: Owning a US LLC does not automatically mean you need an ITIN.

Can You Get an EIN Without an ITIN?

Yes. Many foreign entrepreneurs receive an EIN without first obtaining an ITIN. Likewise, many founders obtain an EIN without having:

• A Social Security Number
• A Green Card
• US residency
• US citizenship

The EIN application process focuses on the business rather than requiring every owner to possess a personal US tax identification number.

Can You Get an ITIN Without an EIN?

Yes. Because they serve different purposes, obtaining one does not automatically require the other. Some individuals need an ITIN for personal tax reporting even if they do not own a business. Similarly, businesses often obtain EINs without their owners ever applying for ITINs.

When You Might Need Both

There are situations where both numbers become relevant. For example, an international entrepreneur might:

• Form a US LLC
• Obtain an EIN for the business
• Later develop personal US tax reporting obligations

In that scenario:

• The business uses the EIN.
• The individual uses the ITIN.

Each serves its own purpose.

Common Misconceptions

"The EIN Replaces My ITIN"

False. One identifies a business. The other identifies an individual.

"I Must Get an ITIN Before Applying for an EIN"

Not true. Many international founders obtain an EIN first.

"Every Foreign LLC Owner Needs an ITIN"

Incorrect. Some do. Many don't. The answer depends on tax circumstances rather than ownership alone.

"An ITIN Lets Me Work in the United States"

No. An ITIN is a tax identification number. It is not employment authorization.

"An EIN Is Only for Businesses With Employees"

Not anymore. Even businesses with no employees frequently obtain EINs because banks and financial service providers require them.

Which One Do Most Global Founders Need?

For many international entrepreneurs forming a US company, the EIN is typically the more immediately important identification number.

You'll likely encounter it when:

• Opening a business bank account
• Applying for Stripe or other payment processors
• Working with accountants
• Filing certain business tax forms
• Registering financial services

An ITIN becomes relevant only if your personal tax circumstances require it.

How to Decide Which One You Need

Ask yourself two questions.

Am I Identifying a Business?

If yes, you're likely dealing with an EIN.

Am I Identifying Myself for Personal US Tax Reporting?

If yes, an ITIN may be relevant. Separating business obligations from personal tax obligations makes the distinction much easier to understand.

Common Mistakes to Avoid

Applying for Both Without Understanding Why

Some founders assume they need every available identification number. Often, they don't. Understand your actual requirements before applying.

Confusing Business and Personal Taxes

Your business and your personal tax obligations are not always the same. Keep documentation organized accordingly.

Assuming Every Bank Requires an ITIN

Many financial institutions focus primarily on your company's EIN and business documentation. Requirements vary by provider.

Delaying Your EIN Application

Waiting unnecessarily for an ITIN can slow your business launch when an EIN could often be obtained independently.

Ignoring Professional Tax Advice

International taxation can become complex. When your business activities involve multiple countries, consulting a qualified tax professional can help you understand your obligations more accurately.

Simplifying Business Formation as a Global Founder

Launching a US company involves more than obtaining identification numbers. Entrepreneurs also need to manage company formation, compliance, banking, official correspondence, and ongoing administrative responsibilities.

Many founders simplify these processes by using integrated business platforms. Foundeck, for example, is an AI-powered US company formation and management platform designed specifically for global entrepreneurs. In addition to supporting company formation, it provides guidance on EIN applications, compliance management, registered agent coordination, official mail handling, educational resources, and AI-powered business tools that help founders operate US companies from anywhere in the world.

Frequently Asked Questions

What is the main difference between an EIN and an ITIN?

An EIN identifies a business, while an ITIN identifies an individual for certain US tax purposes.

Can I get an EIN without an ITIN?

Yes. Many international entrepreneurs obtain an EIN without first receiving an ITIN.

Can I get an EIN without a Social Security Number?

Yes. Eligible foreign business owners can obtain an EIN without having an SSN.

Do all foreign LLC owners need an ITIN?

No. Whether an ITIN is necessary depends on the individual's tax situation rather than simply owning an LLC.

Can an ITIN replace an EIN?

No. They serve completely different purposes.

Is an EIN required for business banking?

Many US business banking providers require an EIN during the account opening process.

Can I own a US LLC with only an EIN?

Many foreign founders successfully operate US companies using an EIN without ever obtaining an ITIN, although individual tax circumstances may differ.

Does an ITIN authorize me to work in the United States?

No. An ITIN is solely a tax identification number and does not provide employment authorization or immigration benefits.

Should I apply for both at the same time?

Not necessarily. Many founders only need an EIN initially. Whether you also need an ITIN depends on your personal tax obligations.

Conclusion

Understanding the difference between an EIN and an ITIN is essential for any entrepreneur entering the US business ecosystem. Although both are issued by the IRS, they serve very different purposes.

An EIN identifies your business and is commonly required for banking, payment processing, tax administration, and day-to-day operations. An ITIN identifies an individual for certain US tax reporting purposes and does not replace either an EIN or a Social Security Number.

For many international founders, obtaining an EIN is the first and most important step after forming a US company. An ITIN may become relevant later if personal tax obligations require it, but many non-US entrepreneurs successfully operate US businesses without ever applying for one.

By understanding which identification number fits your situation—and avoiding the common misconception that every foreign founder needs both—you can streamline your business setup, reduce unnecessary paperwork, and build your company with greater confidence from day one.