Reading a Social Security card the way an employer should

What a real Social Security card looks like, which restrictive legends block employment, and how employers verify a number without breaking the law.

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What the card proves, and what it does not

A Social Security card is issued by the Social Security Administration and does exactly one thing: it links a name to a nine-digit Social Security number. It carries no photograph, no date of birth, no address and no expiration date. It is therefore useless as proof of identity, and no employer should ever treat it as such.

On a Form I-9, an unrestricted Social Security card is a List C document. It establishes work authorization only, and it must be paired with a List B document, typically a state driver's license, that establishes identity. Anyone who tells you the card alone is enough has misread the form.

The distinction that matters most is invisible to people who have only ever seen one version of the card. The Social Security Administration issues three, and only one of them supports employment without further conditions. Two of them carry a restrictive legend printed directly on the face, and that legend changes everything about what you can do with the document.

What appears on a genuine card

The card is deliberately plain, which is why the few elements it does carry deserve attention.

  • The number, in three groups

    Nine digits printed as three digits, two digits, then four digits, separated by hyphens. The card shows no other number and no barcode.

  • The name, exactly as recorded by SSA

    The name on the card is the one SSA holds in its records. A recent marriage, a divorce or a legal name change frequently produces a card that no longer matches the driver's license, which is a paperwork problem rather than a fraud signal.

  • A signature line

    Present on cards issued to adults. Cards issued for young children are typically unsigned, which is normal.

  • One of three possible legends, or none

    A card with no restrictive wording is the unrestricted version. A card printed VALID FOR WORK ONLY WITH DHS AUTHORIZATION, or the older wording referring to INS authorization, indicates temporary work authorization tied to another document. A card printed NOT VALID FOR EMPLOYMENT was issued for a non-work purpose and never supports employment.

  • Banknote-style paper

    The card stock is not ordinary paper. It has a distinctive weight and texture, a pale blue tint and coloured fibres embedded in the sheet rather than printed on it. Held to the light, the fibres sit inside the material.

  • Raised printing

    Parts of the printing are produced by an intaglio process and can be felt with a fingernail. This is one of the few tactile checks available on the document, which is exactly why counterfeits are so often laminated.

  • No expiration date

    A Social Security card never expires. If you see an expiration date printed on one, you are not looking at a genuine card.

Examining a card that has just been handed to you

Under I-9 rules your obligation is to decide whether the document reasonably appears to be genuine and to relate to the person presenting it. That is a practical standard, and the following checks satisfy it.

  1. Read the legend before anything else

    Look for restrictive wording across the face of the card. A card marked NOT VALID FOR EMPLOYMENT is not an acceptable List C document, full stop. A card marked valid for work only with DHS authorization is acceptable only in combination with the DHS document that grants that authorization, and you must be able to see both.

  2. Feel the card

    Run a fingernail across the printed areas. Genuine card stock has texture and raised elements. A counterfeit produced on an inkjet printer feels uniformly flat and slick, and often reflects light evenly across the whole surface, which the real stock does not.

  3. Look at the fibres, not just the colours

    Tilt the card toward a light source. On a genuine card the coloured fibres are embedded in the paper and interrupt the surface. On a copy they are printed images of fibres, sitting flat and perfectly in the plane of the page.

  4. Sanity-check the number structure

    Certain number patterns have never been issued and never will be. The first three digits are never 000, never 666, and never fall in the 900 to 999 range. The middle two digits are never 00. The last four are never 0000. A number breaking any of these rules is invalid regardless of how convincing the card looks.

  5. Do not read geography into the number

    Before mid-2011, the first three digits corresponded to the state or region where the number was applied for. Since randomization was introduced, they carry no geographic meaning at all. Concluding that a number is suspicious because it does not match where the person says they grew up is a mistake, and increasingly a discriminatory one.

  6. Compare the name against the identity document

    The name on the card should match the List B identity document. Where it does not, ask, record the explanation and note the surrounding documents. A mismatch caused by a name change is common and does not disqualify anyone.

  7. Refuse a photocopy or a laminated card you cannot examine

    The I-9 requires examination of the original document. SSA itself advises against laminating the card, precisely because lamination conceals the texture and the raised printing. A laminated card is not automatically fake, but it removes the checks you would otherwise perform, and you should say so.

Genuine card and counterfeit, side by side

Most fakes in circulation are not sophisticated. They are produced to satisfy a quick glance, and they fail on the physical properties of the document rather than on its layout.

  • The stock

    Genuine: distinctive weight, pale blue tint, embedded fibres, texture under the fingertip. Counterfeit: standard cardstock or photo paper, uniform surface, fibres that are clearly printed.

  • The printing

    Genuine: crisp, with raised intaglio elements and consistent letterforms. Counterfeit: flat throughout, sometimes with dot patterns visible under magnification, and occasionally with a font that is close to the official one but not identical.

  • The finish

    Genuine cards are handed over unlaminated. A large share of counterfeits arrive laminated, which is the single most common cover for a poor forgery.

  • The number

    Genuine: a structurally valid number. Counterfeit: often a plausible-looking number that violates one of the structural rules, or a number reused across several applicants presented by the same intermediary.

Traps that catch careful employers

The mistakes below are made by people who are trying to do the right thing, which is precisely why they are worth naming.

  • Asking for the card by name

    Telling a new hire to bring their Social Security card is document abuse. The employee chooses which documents to present from the lists. You may explain the structure of the lists; you may not name the document you want to see.

  • Using the number verification service as a hiring filter

    The Social Security Number Verification Service exists so employers can match names and numbers for wage reporting. It is not built for pre-employment screening, and SSA is explicit that it must not be used that way. A mismatch it returns tells you nothing about work authorization.

  • Treating a no-match notice as evidence of anything

    A notice telling you that a name and number combination does not match SSA records can arise from a typographical error, an unreported name change or a data entry problem at any point in the chain. Acting on one as though it proved unauthorized status is a well-established route to a discrimination claim.

  • Accepting a restricted card on its own

    A card marked valid for work only with DHS authorization is not sufficient by itself. It points to another document that you also need to see. Recording it in Section 2 as though it were an unrestricted card is a substantive error.

  • Requiring the card in addition to a List A document

    If the employee has presented a passport, a permanent resident card or an employment authorization document, you already have everything the form asks for. Asking for a Social Security card on top is over-documentation.

  • Storing the number carelessly

    A Social Security number is among the most valuable pieces of data a fraudster can obtain. Keep I-9 records separate from general personnel files, restrict access, and do not circulate the number by email because it was convenient at the time.

Where the legal lines run

Three separate systems are frequently confused with one another. They do different jobs and they are not interchangeable.

  • Form I-9

    The paper or electronic record every employer must complete for every hire. It is where the document examination happens and where the record lives. It is not submitted anywhere; it is retained and produced on request.

  • E-Verify

    An electronic system operated by the Department of Homeland Security with the Social Security Administration, which compares the information on a completed I-9 against government records. It is run after hire, and it is mandatory for some employers and voluntary for others. Enrolling changes one document rule: List B documents you accept must carry a photograph.

  • The Social Security Number Verification Service

    A wage-reporting tool available to registered employers. Its purpose is to ensure that reported earnings are credited to the right record. It is not an immigration or eligibility check, and using it before hiring is a misuse.

  • The anti-discrimination rule that sits over all three

    The Immigration and Nationality Act prohibits treating people differently in the verification process because of citizenship status or national origin. The Immigrant and Employee Rights Section of the Department of Justice enforces it. In practice: identical process, identical requests, identical scrutiny, for every hire, with no adjustments based on how someone looks or sounds.

What to do when something does not add up

Suppose the card feels wrong, or the name does not match, or the number fails a structural check. The instinct to confront is the wrong one, and so is the instinct to quietly move on.

Start by asking. Name mismatches after a marriage, a card issued decades ago in a different spelling, a card that a parent laminated in the 1990s: these are ordinary. Give the person a chance to explain and note what they say. If the explanation is plausible, and the document otherwise reasonably appears genuine, you accept it. The standard is reasonable appearance, not certainty.

If the document does not reasonably appear genuine, you may decline to accept it and ask the employee to present a different document from the lists. That is the correct move and it is lawful, provided you leave the choice of replacement to them. What you may not do is single out one employee for a level of scrutiny you do not apply to everyone else, refuse a document because it is unfamiliar, or treat a no-match notice as a finding of fact. If you reach the point of declining a document, write down what you observed and why, at the time. That note is the record that will make sense of your decision a year later.

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Frequently asked questions

No. An unrestricted card is a List C document, which establishes work authorization only. It must be paired with a List B document that establishes identity, such as a state driver's license. On its own it satisfies half of the requirement.

It means the number was issued to someone whose permission to work is temporary and comes from a separate Department of Homeland Security document. The card points at that authorization rather than granting it. You need to see the underlying DHS document as well, and older cards carrying the earlier INS wording work the same way.

Not as part of hiring. The Social Security Number Verification Service is limited to wage reporting for registered employers, and SSA states it must not be used for pre-employment screening. Commercial lookup sites that claim to validate a number are checking structural plausibility, not SSA records, and they cannot confirm that a number belongs to the person in front of you.

It did until June 2011, when the first three digits reflected the state or region of application. Numbers have been randomized since then and carry no geographic meaning. Treating a number as suspicious because of where it appears to originate is unreliable and, applied selectively, discriminatory.

Not automatically. Lamination is not itself evidence of forgery, and many people laminated their card years ago in good faith. It does prevent you from feeling the raised printing and the paper texture, which are the strongest physical checks available. Judge the card on what you can still see, and record the limitation.

Then it is not a genuine Social Security card. SSA does not print expiration dates on the card, because the number itself does not expire. This is one of the few checks that gives a definitive answer.

Ask. A marriage, a divorce or a legal name change explains most of these mismatches, and the person will usually say so immediately. Record the explanation. What matters on the form is whether the documents reasonably appear to relate to the person presenting them, not whether every field is a perfect string match.

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