How to get a US ITIN as a non-resident — without mailing your passport
The short version
- An ITIN is a US tax ID for people who owe US tax but can't get a Social Security Number.
- You apply on Form W-7, almost always attached to a US tax return.
- With a Certified Acceptance Agent, your original passport never leaves your hands.
- Most delays come from avoidable mistakes — not the IRS being slow.
Here's a situation we see almost every week. A founder in Lahore, or Lagos, or Lisbon sets up a US LLC, lands their first American client, goes to file — and hits a wall. To file the return they need a tax ID. To get the tax ID they're told to mail their actual passport to an IRS office on another continent and wait. For most people, that's a non-starter.
The good news: there's a cleaner path. This guide walks through exactly what an ITIN is, whether you need one, and how to get it without surrendering the one document you can't travel without.
What an ITIN actually is
An ITIN — Individual Taxpayer Identification Number — is a nine-digit number the IRS issues so that people who have a US tax obligation but aren't eligible for a Social Security Number can still file and pay. It always starts with a 9, and it does one job: it lets the US tax system identify you.
It's worth being clear about what an ITIN is not. It doesn't give you the right to work in the US, it doesn't change your immigration status, and it isn't proof of residency. It's a tax number — nothing more, nothing less.
Do you actually need one?
You probably need an ITIN if any of these sound like you:
- You're a non-resident owner of a US LLC or C-Corp and have a filing obligation.
- You earn US-sourced income — royalties, software sales, rental property, investments.
- You want to claim a benefit under your country's tax treaty with the US.
- You're a spouse or dependent being claimed on someone's US return.
The passport problem — and the better way
The default route the IRS describes has you mail your original passport (or certified copies from the issuing agency) along with your W-7. In practice that means weeks without your passport, plus the very real risk of it getting lost in international post. Understandably, most founders won't do it.
This is exactly what a Certified Acceptance Agent (CAA) exists to solve. A CAA is authorised by the IRS to verify your identity documents directly and certify them on your behalf. Your passport stays with you; we send the certification, not the document. As CAAs, that's how we handle every application — for clients anywhere in the world.
How the process works, step by step
- 1. We confirm you need one. We check your situation and the right trigger (usually a return or a treaty claim) so the application has a valid reason attached.
- 2. We verify your documents. As a CAA we authenticate your passport and ID over a secure review — no mailing originals.
- 3. We prepare and submit Form W-7. Filed with the supporting return or exception, completed correctly the first time.
- 4. We track it to issuance. If the IRS asks anything, we handle the follow-up and watch it through to your number landing.
Why applications get rejected (and how we prevent it)
When people say "the ITIN process is slow," what they usually mean is that their application got bounced and they had to start over. The common reasons are boringly preventable: the wrong reason code, a mismatch between the name on the W-7 and the supporting documents, an expired or unsupported ID, or a return that wasn't actually required. We screen for every one of these before anything is submitted, which is why a well-prepared application is the real shortcut.
How long it takes
Once filed correctly, issuance timelines move with IRS workload and are typically longer around peak filing season. We can't control the IRS's queue — but we can control whether your application sits in the "approve" pile or the "reject and return" pile. A clean first submission is, by a wide margin, the fastest route to your number.
Common questions
Can I get an ITIN without a US tax return?
Only in specific exception cases (for example, certain treaty claims or third-party reporting). For most people, the ITIN rides along with a return. We'll tell you honestly which bucket you're in.
Does an ITIN expire?
Yes — ITINs can expire if they go unused for several consecutive years, and some older ones were retired in batches. If yours has lapsed, it can be renewed; we handle renewals the same way.
I don't have a US company yet. Should I get an ITIN first?
Usually it's the other way around — the company, the activity and the filing obligation come first, and the ITIN follows. If you're starting from scratch, we'll sequence it for you.
Need an ITIN? We handle the whole thing as Certified Acceptance Agents, from anywhere in the world — passport never mailed, application screened before it's filed.
