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Find Your GIIN

How to Find Your GIIN Number

Where to find your Global Intermediary Identification Number — on the IRS portal, the FFI List, and your registration records.

If your institution has registered under FATCA, the IRS assigned you a GIIN. This guide shows you exactly where to find it — whether you're logging in for the first time or recovering a lost GIIN.

Quick answer: Log in to the IRS FATCA Registration System. Your GIIN appears in the Account Information section of your homepage. It also appears on the IRS FFI List, published on the first day of each month.

Finding your GIIN via the IRS portal

  1. Go to the IRS FATCA Registration System at https://www.irs.gov/fatca-registration.
  2. Log in with your FATCA account credentials.
  3. Navigate to the Account Information section of your homepage.
  4. Your GIIN is displayed at the top of the page, in the format XXXXXX.XXXXX.XX.XXX.
  5. Copy the GIIN carefully — verify the format against the rules in our GIIN Format guide.
Note on TCC GIIN: The TCC GIIN is displayed in the Account Information section of the Foreign Filer TCC Home Page once registration is approved. The TCC GIIN is a system-generated identification number used to support the process for requesting a TCC and is required for enrollment in IDES.

Finding your GIIN via the IRS FFI List

If you can't log in to the portal, you can still find your GIIN on the IRS FFI List:

  1. Go to the IRS FFI List Search and Download Tool.
  2. Search by financial institution name or country/jurisdiction.
  3. Locate your institution in the results.
  4. The GIIN appears in the first column of each result row.

The FFI List is updated on the first day of each month.

What if you can't find your GIIN?

ScenarioWhat to do
You registered but never received a GIINCheck the registration status in the portal. If "Approved," the GIIN appears on your homepage.
You lost your GIINSearch the FFI List by institution name. If found, the GIIN is in the results.
Your institution isn't on the FFI ListRegistration may still be pending. The FFI List updates monthly on the first.
You're a sponsored entityYour GIIN uses the sponsoring entity's FATCA ID. Contact your sponsor directly.
You're unsure if you need a GIINIf you're an FFI, FI branch, direct reporting NFFE, sponsoring entity, or sponsored entity, you need one.

How to register for a GIIN (if you don't have one)

  1. Complete Form 8957 (FATCA Registration) — the paper form or online equivalent.
  2. Access the IRS FATCA Registration System online.
  3. Create an account and submit your registration.
  4. Once approved, your GIIN appears on the FFI List in the next monthly publication cycle.

How long does it take?

  • Registration approval: typically 2–4 weeks.
  • FFI List publication: first day of the following month after approval.

Verify your GIIN is valid

Once you have your GIIN, confirm it appears on the current IRS FFI List using our GIIN Lookup tool.

Related resources

Frequently asked questions

Where do I find my GIIN?

Log in to the IRS FATCA Registration System. Your GIIN appears on your homepage under Account Information. You can also search for your institution on the IRS FFI List.

Is my GIIN the same as my FATCA ID?

No. The FATCA ID is the 6-character prefix you choose during registration. The GIIN is a longer 19-character identifier the IRS issues after approval — it includes your FATCA ID as its first segment.

How do I get a GIIN if I haven't registered?

You must register under FATCA via the IRS FATCA Registration System. Once approved, the IRS assigns your GIIN and publishes it on the FFI List.

Why isn't my GIIN showing on the FFI List?

The FFI List is republished on the first of each month. If your registration was approved recently, your GIIN appears in the next publication. If it's been more than 60 days, contact the IRS.

Can I have more than one GIIN?

Yes. A single institution can have multiple GIINs — for example, one for the parent FI and separate GIINs for branches, member FIs, or sponsored entities.