The ITIN, explained
What an ITIN is, why the IRS issues one only for a US tax reason, and why it is often the slowest step in the whole setup.
Do you need an ITIN, and why does it take so long?
Only if the IRS needs a number for you: US income to report, a share in a US partnership, a place on a US return as a spouse, or a treaty benefit to claim. Your company’s EIN never needs one. When you do need it, it is usually the slowest step in the setup, because nobody can speed up the IRS, so it is filed first and everything else moves forward alongside it.
It is a tax number, not permission to work or to bank.
An ITIN, an Individual Taxpayer Identification Number, exists so the IRS can process tax for someone who can’t get a Social Security number, and that is all it does. It doesn’t give you the right to work in the US, it doesn’t change your immigration status and it doesn’t make you a US resident for tax.
Banks and card issuers accept it as an identifier, which is why it matters for credit, but it doesn’t open an account by itself. A bank still decides on its own review, as it would for anyone.
The IRS issues one only for a US tax reason.
The application has to show why you need the number. These are the most common reasons people who live abroad apply.
- You have US income and must file a return
- You own part of a US partnership that files
- You are named on a US return as a spouse
- A tax treaty benefit you claim needs a number
Your company’s EIN doesn’t need one.
The EIN is the company’s tax number, and a company owned from abroad can get one without its owner holding an ITIN or a Social Security number. So an ITIN is never the first step for the company itself. It matters when you need a number of your own.
A Certified Acceptance Agent checks your passport, so it stays with you.
The IRS normally wants original identity documents, which would mean posting your passport and waiting weeks for it to come back. The agent sees the passport, certifies a copy and hands it back the same day, so you are never without it.
How the application runs.
The application is one form and the papers that support it. It runs in this order, and most of the waiting happens after it is filed.
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Confirm the tax reason
Before anything is prepared, the reason is checked against the IRS rules. An application without a valid reason is sent back, and that costs months. It is the step most often skipped.
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Prepare the form and papers
Form W‑7 goes with the tax return that needs the number, or with the papers that show why an exception to filing a return applies. Each paper is checked against the form before anything is sent.
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The agent verifies and files
The Certified Acceptance Agent meets you, checks your passport, certifies the copy and sends the whole application to the IRS on your behalf.
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The IRS issues the number
The IRS reviews the application and posts a letter with your ITIN to the address on the form. Keep that letter safe, since banks and issuers can ask to see it.
It is often the slowest step, so it starts first.
Of every step in the setup, the ITIN is the one nobody can speed up. The IRS works through applications in order, it is slower in the months around the filing season, and an application with a missing paper goes back to the start.
That is why it is prepared first and filed as early as the tax reason allows, while the rest of a founder’s route to US banking and credit, or a private client’s, moves forward alongside it. Once it is filed, there is nothing to do but wait for the letter.
Once issued, it can start a credit file.
A US credit file needs a number to belong to. With an ITIN, a bank that accepts it can open an account in your name that reports to the credit bureaus, and that is where your US credit history begins. Not every bank or card accepts an ITIN, and the number alone builds nothing. What it does is make a file possible, and with it, in time, cards in your own name.
An ITIN can bring filings of its own.
The number is issued because of a US tax reason, and that reason usually means a return, this year and possibly in later years. An ITIN that goes unused on a federal return for a few years can also expire and need renewing before it is used again. None of this is complicated, but it belongs on your accountant’s calendar from the start, next to the company’s own yearly filings.
We can help you be more efficient.
It reads like a lot from the outside. We coordinate the ITIN with a Certified Acceptance Agent and time it with your other steps, so the slow part starts first and you always know what comes next.
