Green Card Holders
Do You Still Need an ITIN After Getting a US Green Card? The Short Answer
In most cases, once you receive a Green Card you qualify for an SSN — and that changes everything about how you handle US taxes.
In most cases, once you receive a Green Card you qualify for an SSN — and that changes everything about how you handle US taxes.
Once you hold a Green Card, you are generally eligible to apply for a Social Security Number (SSN). If you already have an SSN, you should use it for all tax filings, financial accounts and other federal purposes — there is no need to apply for or continue using an ITIN (Individual Taxpayer Identification Number).
However, there is an important distinction that many people overlook.
These two situations are not the same thing:
Common mistake: Some people who are eligible for an SSN apply for an ITIN simply because they don’t have a number yet. This can create confusion with the IRS and delays in tax processing.
If you previously obtained an ITIN (for example, before your Green Card was approved) and later received your SSN, the transition is straightforward:
For all new tax returns, bank accounts and federal documents, use your SSN instead of your ITIN.
While not strictly required, it is good practice to inform the IRS that you now have an SSN. This helps consolidate your tax records.
If you don’t use your ITIN on a tax return for three consecutive years, it will expire automatically. You don’t need to take any action to cancel it.
In short: Once you have an SSN, switch to it for all tax purposes. Your old ITIN will eventually expire on its own.
| Feature | ITIN | SSN (with Green Card) |
|---|---|---|
| Who can get it | Anyone with a US tax filing obligation but ineligible for an SSN | Green Card holders and certain other eligible individuals |
| Used for | Federal tax returns only | Taxes, employment, banking, credit, Social Security benefits |
| Work authorization | Does not authorize employment | Required for legal employment in the US |
| Expires | Yes — if not used on a tax return for 3 consecutive years | No expiration |
| Green Card holders | Not needed once you have an SSN | Should be used for all purposes |
If you still have questions about whether you need an ITIN or an SSN, or if you need help with your ITIN application, feel free to reach out through our Certified Acceptance Agent service.
Whether you need an ITIN for the first time, a renewal, or guidance on switching from ITIN to SSN, our Certified Acceptance Agent can help.
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