How to Register for the IRS IRIS System

Start at the IRS: Open the IRIS Application for TCC page and choose its application access link. Use the steps below to prepare before you sign in. The application and IRIS access are free.

What Is IRS IRIS and Why Do You Need to Register?

IRIS — the Information Returns Intake System — is the IRS's modern platform for electronically filing 1099 information returns. It replaces the aging FIRE (Filing Information Returns Electronically) system, which has been in operation since 1996 and is scheduled to stop accepting submissions on November 19, 2026, at 3 p.m. ET.

If your organization currently files 1099 forms directly with the IRS through FIRE, you must transition to IRIS before the deadline. That process starts with registration.

Even if you've been filing through FIRE for years, your existing FIRE credentials and TCC will not work with IRIS. IRIS requires a separate registration and TCC. The Taxpayer Portal accepts manual entry or IRS CSV templates; A2A software submits XML instead of FIRE's fixed-width text. See our IRIS vs FIRE comparison for a complete breakdown of the differences.

Prerequisites: What You Need Before You Start

Before beginning the IRIS registration process, gather the following:

• Employer Identification Number (EIN): Your organization's EIN as assigned by the IRS. If you don't have one, you must apply for an EIN before registering for IRIS.
• Authorized users: Gather the identity and contact information for each Responsible Official and Contact, plus any Authorized Delegates. Responsible Officials must have responsibility for and authority over the business. Check the required number of users and any business-structure exceptions in Publication 5903; every Responsible Official must sign the initial application.
• Business information: Legal business name, DBA (if applicable), physical address, and phone number — all matching IRS records exactly.
• Government-issued photo ID: For the ID.me identity verification step. A valid driver's license, state ID, or passport is required.
• Email address: A working email address that the Responsible Official has access to. This will be used for account verification and IRS correspondence.

Step-by-Step: How to Register for IRS IRIS

The IRIS registration process involves five distinct steps, each with its own timeline and requirements.

Step 1: Create an IRS e-Services Account

Start from the official IRIS Application for TCC page. Select Access IRIS application for TCC, then sign in with your existing ID.me account or create one. Each authorized user uses their own individual sign-in; do not share credentials.

Each Responsible Official and Authorized Delegate needs access to the application. Contacts also need an account if they will access IRIS. An existing IRS e-Services user should follow the sign-in instructions shown by the IRS rather than create a second account.

Step 2: Verify Your Identity Through ID.me

Complete the identity verification requested by the IRS sign-in service. Follow the current ID.me prompts for the required documents and available verification methods. If you have already verified your identity for an IRS service, sign in with that account.

1. Return to the IRIS application after signing in.
2. On Select Your Organization, choose Individual to create a new application. Responsible Officials also use this option while the application is not yet completed.
3. On the External Services Authorization Management page, choose New Application, then IRIS Application for TCC.

The IRS provides screen-by-screen instructions in Publication 5903. If the organization is already approved, authorized users can select its completed application to review or maintain it.

Step 3: Apply for an IRIS Transmitter Control Code (TCC)

The TCC is your organization's authorization to transmit information returns through IRIS. Without it, you cannot submit filings.

1. Sign in through the IRS IRIS application access page with your verified account.
2. Navigate to the online IRIS Application for TCC.
3. Select the role or roles appropriate to your filing method:
   • Issuer: You're filing 1099 forms for your own organization.
   • Transmitter: You're filing for your own organization and/or other organizations.
   • Software Developer: For A2A applications, you develop software that generates IRIS submissions. This role is not used for Taxpayer Portal applications.
4. Enter your organization's EIN, legal name, address, and contact information.
5. Add all required Responsible Officials and Contacts, and any Authorized Delegates. Confirm that their information matches their own sign-in identity.
6. Select your desired transmission method:
   • IRIS Taxpayer Portal: Web-based interface for manual entry or CSV upload.
   • Application-to-Application (A2A): Direct API integration for automated, high-volume XML submissions.
   • Both: You can apply for both methods simultaneously.
7. Have every Responsible Official sign with their five-digit PIN, then submit the application and retain its tracking number.

Choose roles carefully: You cannot select both Issuer and Transmitter. The IRS assigns a separate TCC for each selected role and transmission method. A Software Developer role may be combined with an eligible filing role.

For detailed guidance on TCC applications, including the differences between Taxpayer Portal and A2A access, see our complete guide to getting an IRIS TCC.

Step 4: Allow Time for IRS Review

After submitting your TCC application, the IRS conducts a suitability review. This is not a rubber stamp — the IRS verifies your organization's identity, tax compliance history, and the Responsible Official's background.

• Typical processing time: Publication 5903 says a typical application is processed within 45 business days, although processing times vary.
• Status checks: You can check the status of your application through your e-Services account. Look for the TCC application status section.
• Possible outcomes:
  • Completed: Your assigned TCC is available through the application in e-Services; the IRS also sends a written acceptance letter.
  • Denied: The IRS will provide a reason. Common causes include tax compliance issues, incomplete applications, or mismatched information.
  • Additional information requested: The IRS may ask for supplemental documentation before making a decision.

Plan ahead: Allow at least the published 45-business-day review window before your filing deadline, plus extra time for account setup and any required A2A testing.

Step 5: Access the IRIS Taxpayer Portal and Begin Filing

Once your TCC is approved:

1. Log in to your e-Services account.
2. Navigate to the IRIS Taxpayer Portal.
3. Select the approved organization associated with your Portal TCC and follow the portal instructions.
4. You'll see options to:
   • Enter forms manually — key in 1099 data one form at a time
   • Upload a CSV file — use the IRS-provided template to submit multiple forms at once
   • Manage issuer information and filed returns through the portal
5. For A2A access, separately obtain an API Client ID and schema package, then complete the applicable ATS software or communication test before production transmission.

Two Types of IRIS Access: Taxpayer Portal vs A2A

When applying for your IRIS TCC, you'll choose between two access methods. Understanding the difference is critical for selecting the right option.

Feature	IRIS Taxpayer Portal	A2A (Application-to-Application)
Interface	Web-based, accessed through a browser	API-based, requires software integration
Data entry	Manual entry or CSV upload	Automated XML submission via API
Best for	Filers comfortable with manual entry or CSV batches of up to 100 returns	High-volume filers, software developers, service bureaus
Technical skill required	Low — browser-based forms and templates	High — requires XML generation and API integration
Automation	Limited — manual upload each filing cycle	Full — can be integrated into existing workflows
Approval timeline	TCC application typically processed within 45 business days	TCC review plus API Client ID, schema access, and ATS testing

Most small and mid-size businesses should apply for Taxpayer Portal access. Organizations with developer resources or high filing volumes should consider A2A — or, more practically, use a dedicated IRIS filing service that has already built and tested the A2A integration.

Preparing to file directly? Follow our IRIS CSV upload template guide for the Portal, or review the IRIS XML schema and validation guide for A2A.

Common Registration Issues and How to Resolve Them

IRIS registration isn't always smooth. Here are the most common problems filers encounter and how to fix them.

ID.me Verification Failures

The most frequent blocker. ID.me may reject your self-service verification if:

• Your photo ID is expired, damaged, or difficult to read
• Your selfie doesn't match your ID photo (lighting, glasses, or camera quality issues)
• The name or address on your ID doesn't match what you entered during registration

Resolution: Use the help and verification options offered by ID.me. Resolve personal identity verification with ID.me; a business address-change form does not replace that process.

EIN Mismatch or Not Found

The IRS may not be able to match your EIN with their records if:

• You're using a recently issued EIN that hasn't fully propagated in IRS systems
• Your legal business name doesn't exactly match IRS records (punctuation, abbreviations, or DBA differences)
• Your organization's address on file with the IRS is outdated

Resolution: Call the IRS Business & Specialty Tax Line (800-829-4933) to confirm exactly how your business name and EIN appear in their system. Use that exact formatting in your IRIS application.

Responsible Official SSN Issues

Each Responsible Official needs their own verified sign-in and must be added to the application with the correct identity and role. A Responsible Official on the IRIS application is not automatically the same person as the EIN responsible party.

Resolution: Review the Authorized Users section and the user's sign-in details against Publication 5903. Contact IRS IRIS support if the application cannot associate an authorized user. Use Form 8822-B only when the business actually needs to report an address or responsible-party change.

TCC Application Denied

Common reasons for denial include:

• Outstanding tax liabilities or unfiled returns
• Incomplete application information
• Prior TCC revocations or compliance issues

Resolution: Resolve any tax compliance issues first. The denial notice will specify the reason — address it directly and reapply. For compliance issues, consider working with a tax professional to clear them before resubmitting.

Long Processing Delays

If it's been more than 45 business days with no response:

• Check your e-Services account for status updates or requests for additional information
• Call the IRS e-Help Desk at 866-255-0654 with your confirmation number
• If filing deadlines are approaching, consider using an authorized e-file provider like BoomTax while you wait for approval

The Easier Alternative: Skip Registration and Use BoomTax

The IRIS registration process — creating an e-Services account, verifying through ID.me, applying for a TCC, waiting for IRS review, and learning the selected channel — exists because the IRS requires it for direct filers. But you don't have to file directly.

BoomTax is an IRS-authorized e-file provider that handles IRIS submission on your behalf. When you file through BoomTax:

• No IRIS registration required — BoomTax maintains its own IRIS TCC and A2A integration
• No ID.me verification — create a BoomTax account in minutes, not weeks
• No direct-filer application wait — start filing through BoomTax immediately
• No XML formatting — enter data manually, upload CSV/Excel, use the bulk upload feature, or connect via API
• No FIRE-format rewriting — if you have existing FIRE-format files, BoomTax accepts them and converts to IRIS XML automatically
• Built-in validation — BoomTax checks every record against IRS business rules before submission, catching errors before they reach the IRS

For most businesses, using BoomTax is faster, simpler, and more reliable than navigating IRIS registration and the Taxpayer Portal directly. You focus on your business; BoomTax handles the IRS plumbing.

Timeline: When to Start the Registration Process

If you've decided to register for IRIS directly (rather than using a provider like BoomTax), timing matters. Here's a realistic timeline:

Milestone	Recommended Date	Why
Create e-Services account + ID.me	September 2026 or earlier	ID.me verification can take days if video call is needed
Submit TCC application	October 2026 at the latest	Typical IRS processing is within 45 business days; times vary
Receive TCC approval	November-December 2026	Cutting it close — any delay could mean missing the deadline
FIRE system shuts down	November 19, 2026, at 3 p.m. ET	After this date, FIRE is no longer available for 1099 submissions
Tax Year 2026 filing deadline	February 1, 2027 (1099-NEC, after the weekend adjustment) / March 31, 2027 (most other electronic 1099 filings)	These filings must go through IRIS — FIRE won't exist

The risk: If your TCC application is delayed, denied, or requires additional documentation, you may not have IRIS access in time for the February 1, 2027 Form 1099-NEC deadline. That's why starting early — or using a provider like BoomTax — is critical.

IRIS Registration for Existing FIRE Users

If you currently file through FIRE, there are specific considerations for your IRIS registration:

• Your FIRE TCC does not transfer to IRIS. You must apply for a new, IRIS-specific TCC through the process described above.
• Your e-Services account may already exist if you registered for FIRE through e-Services. In that case, skip Step 1 and log in with your existing credentials. However, you may still need to complete ID.me verification if your account predates the ID.me requirement.
• Your FIRE-format files won't work in IRIS directly. The Portal uses manual entry or IRS CSV templates, while A2A uses XML. See our guide on migrating from FIRE to IRIS and uploading FIRE-format files through BoomTax for alternatives.
• Prepare IRIS while FIRE remains available, but do not submit the same return twice. Use the designated testing process for trial submissions. Choose one production filing channel for each original return and retain its acknowledgment.

For official step-by-step TCC application instructions, see IRS Publication 5903. For the broader transition, use our step-by-step FIRE-to-IRIS migration guide.

Frequently Asked Questions