
Social Security Numbers (SSNs) are used as a form of identification across the financial services industry, including banks. While it is not illegal for companies to request your SSN, it is recommended to be cautious about sharing it due to the risk of identity theft. Banks often require customers to provide their SSN when opening an account or applying for a loan, and they use it to verify identity and check credit history. However, there is criticism that banks and other institutions should reduce their reliance on SSNs and adopt more secure methods for identity verification.
| Characteristics | Values |
|---|---|
| Is it common for banks to ask for SSN? | Yes, banks often require SSN as a form of identification for opening a new account or applying for a loan. |
| Are there alternatives to SSN for identification? | Yes, some banks may accept other forms of photo identification, such as a passport, military ID, or employee ID card. |
| Are there risks associated with sharing SSN? | Yes, sharing SSN increases the risk of identity theft and leaves consumers vulnerable to data breaches. |
| Can banks share SSN with each other? | There is no explicit mention of banks sharing SSN with each other, but once a company has an individual's SSN, there are few restrictions on what they can do with it. |
| How can individuals protect their SSN? | Individuals should be cautious about sharing their SSN and only provide it when absolutely necessary or required by law. Freezing credit can also reduce worries about SSN being shared. |
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What You'll Learn

Banks require SSNs for opening accounts
However, due to the frequency of data breaches, SSNs are no longer private, and individuals are vulnerable to identity theft if their number falls into the wrong hands. As such, some organizations are moving away from using SSNs as identifiers and are instead requesting other forms of ID. For example, some banks will accept a passport number and country of issuance, an alien identification card number, or other government-issued ID number.
If you are a non-resident in the US, you can open a bank account without an SSN. Many financial institutions offer accounts for non-residents without an SSN, although you will need to provide other documentation. For instance, PNC Bank provides non-residents with an IRS Form W-8 BEN to complete.
There are also alternatives to traditional banks, such as Money Service Businesses, which offer accounts in USD without requiring an SSN. International bank accounts are another option, as these specialized accounts for foreigners do not always require an SSN.
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SSNs are used for identity verification
Social Security Numbers (SSNs) are used for identity verification in a variety of contexts, from government services to private businesses. Federal law mandates that state Departments of Motor Vehicles, tax authorities, welfare offices, and other government agencies request SSNs as proof of identity.
SSNs are also commonly used by private companies for identity verification. This is especially prevalent in the financial services industry, where SSNs have been the "gold standard" for identifying and verifying the credit history of customers. Banks often require SSNs when opening an account, applying for a loan, or conducting financial transactions over a certain amount. Additionally, credit card companies and lenders typically require SSNs for credit applications.
The use of SSNs for identity verification is not without risks. The widespread distribution of SSNs has made them vulnerable to data breaches and identity theft. Criminals can exploit SSNs for illicit transactions, creating synthetic identities using real and forged data, making them challenging to trace. As such, it is recommended to be cautious when sharing one's SSN.
While SSNs are useful for identity verification, they were not designed as universal identifiers. Therefore, it is crucial to use SSN verification as only one part of a more comprehensive identity verification process. This involves combining SSN verification with other identity verification methods, such as biometric verification or electronic identity verification (eIDV).
To enhance security and protect individuals' privacy, there have been calls for banks and other institutions to reduce their reliance on SSNs and develop more secure methods for identity verification. This includes implementing new technologies and policies that encourage the use of alternative identification methods.
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SSNs are shared between government agencies
Social Security Numbers (SSNs) are widely used by government agencies and shared between them. The SSN was initially intended to be used only to record Social Security earnings, but its use has expanded over time. The Social Security Act of 1935 created the SSN and authorised the Social Security Administration (SSA) to establish a record-keeping system for the Social Security program.
The simplicity and efficiency of using a unique number that most people already possessed encouraged widespread use of the SSN as an identifier by government agencies and private enterprises. In 1943, Executive Order 9397 required Federal agencies to use the SSN in any new system of records to identify persons. However, during the 1940s and 1950s, there was little use of SSNs within the Federal Government because other agencies had no real incentive to change their record-keeping systems.
The real explosion in SSN usage came about during the computer revolution of the 1960s. In 1961, the Civil Service Commission adopted the SSN as the identifier for Federal employees, and in 1962, the IRS began using it as its official taxpayer identification number. Today, SSNs are used by government agencies for various purposes, including tax reporting, Medicare reimbursement, and internal systems to sort and track information about individuals. They are also displayed on some identification cards, such as Medicare and Department of Defense insurance cards.
While the widespread use of SSNs has made it convenient for government agencies to identify and track individuals, it has also raised concerns about privacy and identity theft. Congress has expressed concern over how certain private sector entities obtain, use, and safeguard SSN data, and there have been calls for new policies to encourage banks and other institutions to develop alternative methods for identity verification. Additionally, some states have enacted laws restricting the private sector's use or display of SSNs.
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SSNs are often required for credit applications
Social Security Numbers (SSNs) are often required for credit applications, as they are used to verify an individual's identity. Credit card companies and lenders are businesses that require an SSN for legitimate purposes. While it is not illegal for companies to request an SSN, they cannot deny service if you refuse to provide it, unless it is required by federal law.
Financial institutions must verify the identity of new applicants, and SSNs provide a secure and verifiable way to track an individual's financial information. This is particularly important when deciding whether to approve new credit, and if so, what credit limit or loan amount and interest rates to offer.
However, the widespread use and distribution of SSNs have made them vulnerable to data breaches and identity theft. This has led to calls for banks and financial institutions to reduce their reliance on SSNs and develop alternative methods for identity verification. Some organisations, such as the Aetna healthcare platform, have already committed to stopping the use of SSNs altogether.
While it is possible to apply for a credit card without an SSN, it may be more challenging. Some credit card issuers accept alternative forms of identification, such as ITINs (Individual Taxpayer Identification Numbers), for individuals without an SSN, including international students, new residents, and non-citizens. However, applicants must still meet the minimum card application requirements, and those who are "credit invisible" may struggle to get approved.
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SSNs are susceptible to data breaches
Social Security Numbers (SSNs) are a common form of identification in the US. They are often required for activities such as renting an apartment, applying for a job, or opening a bank account. As such, many different parties hold personal information on individuals, increasing their susceptibility to identity theft.
The widespread distribution of SSNs means they are no longer private. This, coupled with frequent data breaches, puts SSNs at risk of being exposed. For example, in early 2024, the background checking service National Public Data experienced a significant data breach that allegedly exposed the sensitive personal data of millions, or possibly billions, of people worldwide, including US residents.
SSNs are also used to verify identity across the financial services industry, including banks. This has been the case for years, and most banks store them on old technology at the core of their platforms. This makes a potential move away from using SSNs exceptionally difficult. Additionally, there are few restrictions on what companies can do with an individual's SSN once they have it, further increasing the risk of data breaches and misuse.
To protect against data breaches, individuals should be cautious about sharing their SSN and other personal information. Freezing one's credit is the most secure option to prevent fraud, although only a small percentage of Americans use this service. Other recommendations include regularly reviewing credit reports and monitoring financial accounts for suspicious activity.
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Frequently asked questions
There is no clear indication that banks share SSNs with each other. However, once a company has your SSN, there are few restrictions on what they can do with it.
Yes, banks require your SSN for several banking-related activities, such as opening an account or applying for a loan.
Banks use SSNs to verify your identity and check your credit history.
Banks may choose not to do business with you if you refuse to provide your SSN.
Sharing your SSN with banks increases your vulnerability to identity theft.














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