Your ITIN is a 9-digit tax ID number issued by the IRS, formatted as 9XX-XX-XXXX. It’s what you enter instead of a Social Security Number when applying for a credit card, and it never appears on the physical card itself. Understanding what it looks like, where to enter it, and how issuers read it takes about five minutes and can be the difference between a clean application and an unnecessary rejection.
What exactly does an ITIN look like?
The ITIN starts with 9 and follows the same format as an SSN: 9XX-XX-XXXX. Nine digits, written with hyphens in three groups (three digits, two digits, four digits), and the first digit is always 9.
The fourth and fifth digits fall within IRS-designated ranges (70-88, 90-92, 94-99), and the last four digits make each number unique. That middle-digit system is how the IRS organizes ITINs internally, and it also determines when a given ITIN is scheduled to expire (more on that below).
One thing many people get wrong: an ITIN is a number, not a physical card like a work permit or immigration document. The IRS sends you an ITIN assignment letter (CP565), but there is no plastic card. Your number lives on that letter and in your tax records.
| Feature | ITIN | SSN |
|---|---|---|
| Issued by | IRS | Social Security Administration |
| Format | 9XX-XX-XXXX | XXX-XX-XXXX |
| First digit | Always 9 | Never 9 |
| Purpose | Tax filing and credit applications | Work, benefits, tax filing |
| Expires? | Yes, under non-use or digit schedule | No |
| Appears on credit card? | No | No |
Where do I enter my ITIN on a credit card application?
A question we hear often: the application form says “Social Security Number” and there is no separate ITIN box. What do you actually type?
Most issuers’ forms are built to accept any nine-digit tax ID in the SSN field, so typing your ITIN there works. The system identifies it as an ITIN automatically because of the leading 9. Capital One, Chase, and American Express go a step further, offering online applications where you can either enter your ITIN in the SSN field or select a dedicated ITIN option.
If you’re applying in a branch, bring your IRS CP565 assignment letter (or a tax return showing the number), a valid government-issued photo ID such as a passport, and proof of your U.S. address. The representative enters your ITIN on your behalf. Some Bank of America and Citi locations route ITIN applicants through an in-branch process specifically because their online systems flag the leading-9 format for additional review. For a full breakdown of online versus branch options, see our guide on applying for a credit card with an ITIN online vs. in branch.
Is my ITIN printed on my credit card?
This one comes up a lot: people sometimes confuse the long number embossed on the front of a credit card with their tax ID.
It isn’t. The 15-to-16-digit number on the front is your card account number, assigned by the issuer. The three-digit code on the back (CVV) is a security feature tied to that account number. Neither has any connection to your ITIN.
Your ITIN is used only during the application process, specifically for identity verification under the bank’s Know Your Customer rules and to locate or establish your credit file at the three major bureaus. Once the card is issued, the issuer stores your ITIN in their secure system, but it doesn’t appear on any card surface, statement, or receipt. If someone ever asks you to read out the “ITIN on the front of your card,” that’s a fraud attempt.
Can the issuer tell the difference between an ITIN and an SSN?
Yes, and it matters for your approval. The SSA has never assigned SSNs starting with 9 and has confirmed it never will. That single digit separates every ITIN from every SSN across IRS systems, bank databases, and tax software.
Issuers that accept ITINs configure their systems to process a leading-9 number without flagging it as an error. Issuers that haven’t made that choice, such as Discover and Synchrony, will typically return an error or denial when a leading-9 number is submitted. That’s not a mistake on your part; it’s a policy decision by the issuer. Check our verified issuer list before you apply so you know which issuers accept an ITIN in 2026. Banks and credit card issuers can legally accept an ITIN under the Patriot Act’s Know Your Customer rules, which is the legal basis for the whole arrangement.
What if my ITIN format looks wrong or I’m not sure it’s still valid?
Readers frequently ask: “I have a number but I don’t know if it’s still active.”
Two separate triggers can expire your ITIN: not using it on a federal tax return for three straight years, or your middle digits being retired under the IRS rolling schedule. For 2026, ITINs with middle digits 85, 86, and 87 expire on December 31, while digits 70 through 84 have already lapsed.
If your ITIN has expired, submitting it on a credit card application can cause a delay or denial because the issuer’s identity-verification step will fail. Renewal is done via IRS Form W-7 and is free if you mail it or visit a Taxpayer Assistance Center. IRS processing times average 6-8 weeks, so plan ahead before applying for a card. Once renewed, your number doesn’t change; the same 9XX-XX-XXXX you had before remains your permanent identifier as long as you keep it active. For more detail on how expiration affects your existing cards (not just new applications), read our article on what happens to your credit card if your ITIN expires.
Does entering my ITIN instead of an SSN hurt my approval odds?
The number format itself doesn’t lower your approval odds. What matters is whether the issuer accepts ITINs at all and whether you meet their other criteria: income, credit history, and a deposit if it’s a secured card.
An ITIN is issued primarily to immigrants not eligible for an SSN, whether documented or not. The IRS states that an ITIN is issued “regardless of immigration status.” Because the ITIN identifies you as a specific individual in IRS and credit-bureau systems, the bureaus track activity by ITIN the same way they would with an SSN. Every on-time payment you make with your ITIN credit card counts toward your credit history just as it would for an SSN holder.
If you want to improve your chances before applying, our guide on how to improve credit card approval odds with an ITIN covers the practical steps: checking your credit file, choosing the right card tier, and timing your application after any ITIN renewal.
Frequently asked questions
What does an ITIN number look like? An ITIN is a 9-digit number formatted 9XX-XX-XXXX, identical in structure to a Social Security Number but always beginning with the digit 9. The IRS issues it and it is never found on a physical card.
Where do I put my ITIN on a credit card application? Most issuers ask you to enter your ITIN in the Social Security Number field. Capital One, Chase, and American Express also offer a separate ITIN option or checkbox on their online forms. If applying in branch, hand your ITIN assignment letter to the representative.
Is my ITIN printed on my credit card? No. Your ITIN never appears on the physical credit card. The 16-digit number on the front of your card is your card account number, not your ITIN. Your ITIN is only used during the application to verify your identity.
Can an issuer tell the difference between an ITIN and an SSN on my application? Yes. Any number starting with 9 is recognized as an ITIN rather than an SSN, since the Social Security Administration has never issued SSNs beginning with 9. Issuers that accept ITINs are set up to process this correctly.
What happens if my ITIN is expired when I apply for a credit card? An expired ITIN can cause your credit card application to be delayed or denied because the issuer cannot verify your identity through their Know Your Customer process. Renew your ITIN via Form W-7 before applying. For more detail, see our guide on what happens to your credit card if your ITIN expires.