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Everything You Need to Know About the SSN: Meaning, Uses, and Alternatives

March 24, 2025

The Social Security Number (SSN) is a fundamental concept in the administrative and economic system of the United States.

This number impacts many aspects of life in the U.S., from getting a job to accessing government benefits. In this post, we’ll explore in detail what the SSN means, how it works, its main uses, and the alternatives available for foreigners who don’t have one.

Woman holding SSN card with Openbiz logo

What Does SSN Mean?

The SSN, or Social Security Number, is a unique identification number assigned to U.S. citizens and permanent residents. It was originally created in 1935 as part of the Social Security System to track workers’ earnings and determine their retirement benefits.

Over time, the SSN has evolved into a de facto national ID due to its widespread use across different sectors of American life.

Despite its importance, the SSN is not a secure personal ID in terms of privacy, which is why protecting it from misuse is essential.

What Is the SSN Used for in the U.S.?

In the United States, the SSN is much more than just a number—it’s the key to accessing a wide range of services and benefits. Originally created for Social Security purposes, today it serves multiple functions, such as:

  • Tax Identification: The SSN is used to report earnings and file federal taxes. The IRS (Internal Revenue Service) requires it to manage the tax system and ensure proper compliance.
  • Employment Eligibility: Employers typically require a valid SSN to verify a candidate’s work eligibility and tax status.
  • Access to Federal Benefits: U.S. citizens and residents use their SSN to access programs like Social Security, Medicare, and Medicaid.
  • Bank Accounts: Most banks require an SSN to open an account, due to identity verification and anti-money laundering regulations.
  • Credit History: An SSN is essential to build a credit history, apply for loans, or request credit cards and other financial products.
  • Healthcare Identification: Some healthcare providers use the SSN to manage patient records and insurance claims.

In short, the SSN plays a critical role in daily life in the U.S. But not everyone, especially foreigners, can access one—so it’s important to understand the available alternatives.

Social Security card with approved stamp in the United States

Specific Uses of the SSN

Beyond general purposes, the SSN is also required in more specific situations, such as:

  • Birth Registration: In some states, newborns are assigned an SSN at the time of registration, making it easier to access benefits and insurance early on.
  • Self-Employment: Freelancers and sole proprietors use their SSN to report income and pay taxes.
  • Investments: To invest in stocks, bonds, or mutual funds, you usually need an SSN to open an investment account.
  • Government Grants and Aid: Applying for federal aid or student loans typically requires an SSN.
  • Background Checks: Employers, landlords, and even lenders often run background checks using the SSN to verify identity and history.

Alternatives for Foreigners

While the SSN is essential, not all foreigners are eligible to get one. Fortunately, there are viable alternatives depending on your situation in the U.S.:

1. ITIN (Individual Taxpayer Identification Number)

The ITIN is issued by the IRS for individuals who need to meet tax obligations but are not eligible for an SSN. It can be used to file taxes, open accounts in some banks, and occasionally apply for credit.

2. EIN (Employer Identification Number)

If you plan to start a business in the U.S., the EIN is your best ally. This number allows you to register a company, open a business bank account, hire employees, and handle tax obligations—all without needing an SSN.

3. Work Visa and Authorization

Certain types of visas come with work authorization, which allows you to apply for an SSN. The first step is having a valid immigration status that includes employment rights.

Need Help with the SSN or Legal Alternatives as a Foreigner?

At Openbiz, we help entrepreneurs, freelancers, and international professionals establish themselves legally and efficiently in the United States. Whether you need guidance on obtaining an ITIN, registering your business with an EIN, or understanding how to access services without an SSN, we’re here to support you every step of the way.

Clear, fast, and reliable support from experts. Reach out today and get a free initial guide tailored to your case.

Frequently Asked Questions (FAQs)

Can I work in the U.S. without an SSN?
It depends on your visa. If your visa allows employment, you can apply for an SSN. Otherwise, you may need an ITIN for tax purposes, but it does not authorize you to work.

Does the ITIN fully replace the SSN?
No. The ITIN is only for tax reporting. It does not grant access to Social Security benefits or serve as proof of work eligibility.

Can I get an EIN without being in the U.S.?
Yes. You can apply for an EIN from abroad, even without an SSN or ITIN. At Openbiz, we help you handle the process smoothly and efficiently.

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