Foreign Filer TCC 2026: IRS Path as FIRE Retires
The way U.S. information returns get filed electronically is changing. The long-standing FIRE system is being retired this calendar year, and the Information Returns Intake System (IRIS) becomes the platform for electronically filed returns beginning in 2027. That transition is straightforward for a U.S. filer — you apply for a TCC through IRIS and move on. It is not straightforward for a foreign filer whose authorized users have no U.S. taxpayer identification number. That gap is what the new Foreign Filer TCC Registration System exists to close.
At SW Accounting & Consulting Corp, we work with U.S. subsidiaries of overseas parents, Korean-American families with cross-border trusts, and foreign banks transmitting Form 1042-S. IRIS’s identity-verification rules would lock several of those filers out entirely. The Foreign Filer TCC path is the way through. Here is what the new system does, who has to use it, and how it differs from the standard IRIS Application for TCC.
Why did the IRS build a separate Foreign Filer TCC path? 🌐
Because IRIS’s identity-verification rules require every authorized user to have a U.S. SSN or ITIN — and many foreign filers simply do not.
The IRS announced in Bulletin 2026-08 that the Foreign Filer Transmitter Control Code (TCC) Registration System is now available. The purpose is narrow and specific: allow certain foreign filers to obtain a TCC and submit information returns electronically through the International Data Exchange System (IDES). Foreign filers whose authorized users lack a U.S. taxpayer identification number — no SSN, no ITIN — could not complete the standard IRIS Application for TCC. Without a TCC, they could not e-file. Without e-filing, they could not meet the information-return obligations that follow non-U.S. institutions and entities into the U.S. tax system.
The new registration system solves that access problem. Under this pathway, a foreign filer obtains a TCC Global Intermediary Identification Number (GIIN) and a TCC for IDES enrollment, then transmits Forms 1042-S, applicable Forms 1099, and other information returns electronically through IDES. The identity model shifts from SSN/ITIN to Login.gov or ID.me credentials tied to the responsible officer or point of contact.
Who has to use the Foreign Filer TCC — and who must not? 🧭
Only foreign filers whose authorized users have no U.S. SSN or ITIN. Everyone with a U.S. TIN must still use the standard IRIS Application for TCC.
The IRS makes the boundary explicit. Filers of information returns whose authorized users hold a U.S. taxpayer identification number — an SSN or an ITIN — must not use the new Foreign Filer TCC Registration System. They are required to apply for a TCC through the IRIS Application for TCC and transmit their information returns through IRIS. That is not a suggestion; it is the correct routing.
Practically, this creates two tracks:
- Standard IRIS track (with U.S. TIN): Apply through the IRIS Application for TCC, then file information returns directly through IRIS.
- Foreign Filer TCC track (no U.S. TIN): Register through the Foreign Filer TCC Registration System, obtain a TCC GIIN and TCC, enroll in IDES, and transmit through IDES.
Picking the wrong track wastes weeks and leaves you unable to file. Confirm each authorized user’s taxpayer-identification status before you start.
What is the Foreign Filer TCC registration process, step by step? 📝
Four steps: create the Foreign Filer TCC account, complete registration to obtain a TCC GIIN, request a TCC, and enroll in IDES.
The IRS’s Quick Steps reference — Publication 6167, Foreign Filer Transmitter Control Code (TCC) Registration – Quick Steps — lays out the flow. In sequence:
- Create a new Foreign Filer TCC account to receive a Foreign Filer ID.
- Complete registration to obtain a TCC GIIN (Global Intermediary Identification Number tied to the TCC track).
- Request a TCC once the TCC GIIN is issued.
- Enroll in IDES to actually transmit information returns electronically.
Access to the registration system itself requires signing in via Login.gov or ID.me. If the responsible officer or point of contact does not already have one, they can create the account directly from the Foreign Filer TCC Registration System homepage. One detail matters: the email address used on Login.gov or ID.me must match the account email on file for the responsible officer or point of contact. A mismatch stops the flow at sign-in.
How does this fit into the FIRE-to-IRIS transition? 🔄
FIRE retires in 2026 and IRIS becomes the platform for information returns required to be filed electronically in 2027 — the Foreign Filer TCC handles filers IRIS’s identity requirements would otherwise exclude.
The IRS has been signaling the retirement of the Filing Information Returns Electronically (FIRE) system for months. The successor is IRIS — the Information Returns Intake System. IRIS modernizes the intake process, but its enhanced authentication requirements assume a U.S. taxpayer identification number for every authorized user. That works fine domestically and breaks internationally, and the Foreign Filer TCC Registration System was built to bridge the gap without weakening IRIS’s identity model.
If you are a U.S. filer, your action item is simple: if you have not yet applied for a TCC through IRIS, do so before FIRE goes dark. If you are a foreign filer, decide which of the two tracks you belong on and start the registration well ahead of your 2027 filing deadlines — Login.gov and ID.me identity verification for non-U.S. individuals is not a same-day process.
Foreign Filer TCC vs. IRIS Application for TCC 📊
| Attribute | Foreign Filer TCC | IRIS Application for TCC |
|---|---|---|
| Who uses it | Foreign filers whose authorized users have no U.S. SSN or ITIN | Filers whose authorized users hold a U.S. SSN or ITIN |
| Identity model | Login.gov or ID.me tied to responsible officer / point of contact | Standard IRS identity verification via SSN/ITIN |
| Identifiers issued | Foreign Filer ID, TCC GIIN, and TCC | TCC for direct IRIS transmission |
| Transmission pipeline | International Data Exchange System (IDES) | IRIS (Information Returns Intake System) |
| Return types | Forms 1042-S, applicable Forms 1099, and other information returns | Information returns required to be filed electronically |
📌 Key Takeaways
- The IRS has launched a Foreign Filer TCC Registration System so foreign filers without a U.S. TIN can still e-file.
- FIRE is being retired this calendar year; IRIS takes over for information returns required to be filed electronically in 2027.
- If your authorized users have an SSN or ITIN, use the standard IRIS Application for TCC — not the new Foreign Filer path.
- Access requires Login.gov or ID.me credentials tied to the responsible officer, and the email must match your account email exactly.
Frequently Asked Questions ❓
Q. What is the Foreign Filer TCC Registration System?
It is a new IRS registration pathway that lets certain foreign filers obtain a Transmitter Control Code (TCC) and submit information returns electronically through the International Data Exchange System (IDES). It exists because IRIS’s identity requirements assume a U.S. SSN or ITIN for every authorized user, which many foreign filers do not have.
Q. Who is eligible to use the Foreign Filer TCC path?
Foreign filers whose authorized users do not have a U.S. taxpayer identification number — no SSN and no ITIN. Filers with authorized users who hold a U.S. TIN must apply through the standard IRIS Application for TCC instead.
Q. Which forms can be transmitted through this system?
Forms 1042-S, applicable Forms 1099, and other information returns, transmitted through IDES.
Q. What are the steps to register?
Create a Foreign Filer TCC account to receive a Foreign Filer ID, complete registration to obtain a TCC GIIN, request a TCC once the GIIN is issued, and enroll in IDES for electronic transmission.
Q. What identity verification does the system require?
Sign-in via Login.gov or ID.me. The email address on your Login.gov or ID.me account must match the account email for the responsible officer or point of contact on the Foreign Filer TCC account.
Q. Is FIRE really going away?
Yes. The IRS has announced that the Filing Information Returns Electronically (FIRE) system will be retired this calendar year, and IRIS becomes the platform for returns required to be filed electronically in 2027. Plan your TCC application well before your 2027 filing deadlines.
Cross-border information reporting has never been simple, and the FIRE-to-IRIS transition has raised the stakes for foreign filers. If you would like help mapping your entity to the correct TCC track and preparing your IDES enrollment ahead of the 2027 season, contact SW Accounting & Consulting Corp. Primary sources: IRS Foreign Filer Transmitter Control Code (TCC) Registration, IRS IRIS Application for TCC, IRS E-file Information Returns with IRIS, and Publication 6167.
