IRIS Is Replacing FIRE: Why Your Vendor W-9 Data Needs to Be Clean Before 2027

IRIS replacing FIRE: what businesses need to know

IRIS replacing FIRE is not just an IRS filing system update. It is a warning sign for businesses, CPA firms, bookkeepers, and accounts payable teams to clean up vendor W-9 data before filing season 2027. If your legal names, TINs, tax classifications, addresses, or completed W-9 records are messy now, the move from FIRE to IRIS will not fix that problem.

The IRS has stated that the FIRE system is targeted for retirement in Tax Year 2026 / Filing Season 2027, and that the Information Returns Intake System, known as IRIS, will become the only intake system for information returns currently received through FIRE. You can review the IRS update here: IRS FIRE system retirement update.

That may sound like a filing software issue.

It is not.

The bigger issue is whether your vendor records are clean before you file. IRIS can help with electronic filing, but it cannot repair missing W-9s, incorrect legal names, bad TINs, outdated addresses, duplicate vendor records, or files buried in email inboxes.

For accounts payable teams, IRIS replacing FIRE should trigger one practical question: are our vendor W-9 records ready before filing season?

Why IRIS replacing FIRE matters for 1099 filing

For years, many businesses and tax professionals used FIRE, short for Filing Information Returns Electronically, to submit certain information returns to the IRS. These include forms in the 1099 series and other information returns.

IRIS, or Information Returns Intake System, is the IRS system that allows businesses to electronically file certain information returns. The IRS describes IRIS as a free online portal that can be used by businesses of any size. You can read more here: IRS Topic 801: Who must file information returns electronically.

This matters because electronic filing is no longer only a large-company issue. Starting with Tax Year 2023, businesses filing a combined total of 10 or more information returns generally must file electronically.

That threshold is low.

A business with several contractors, vendors, professional service providers, landlords, attorneys, or freelancers can quickly reach 10 information returns. This means many growing businesses need to think seriously about electronic filing and vendor data quality.

IRIS replacing FIRE does not only affect tax teams in January. It affects how businesses collect and manage vendor information throughout the year.

IRIS replacing FIRE does not fix bad W-9 data

This is the part many teams will miss.

IRIS replacing FIRE changes the filing path. It does not change the quality of the information you submit.

If a vendor record has the wrong legal name, IRIS will not know the story behind the error. If a TIN is missing, IRIS cannot magically recover it. If a completed W-9 is sitting in someone’s inbox, your filing process still depends on manual searching. If your accounting system has one vendor name and the W-9 has another, you still have a cleanup problem.

The filing system receives the data. Your team is responsible for making sure the data is accurate.

That is why the real work starts before filing season.

A clean W-9 process helps your business collect the correct taxpayer information before payments, store the completed form securely, and keep vendor records easier to review when 1099 season arrives.

The real problem: 1099 issues start before January

Many businesses treat 1099 preparation as a January task. That is the mistake.

Most 1099 problems begin much earlier, usually when a vendor is onboarded without a completed W-9 or added to accounting software with incomplete details.

Common issues include:

• A vendor gets paid before submitting a W-9.
• The vendor record uses a nickname instead of the legal name.
• The invoice name does not match the W-9 name.
• The business name or DBA is confused with the legal taxpayer name.
• The TIN is missing or incomplete.
• The mailing address is outdated.
• The W-9 PDF is stored in an email thread instead of a central system.
• No one knows whether the vendor record has been reviewed.
• The AP team waits until January to chase missing forms.

By the time filing season arrives, the team is not preparing 1099s. They are repairing months of weak vendor intake.

IRIS replacing FIRE makes this weakness harder to ignore.

What W-9 data should be cleaned before IRIS replacing FIRE?

Before the IRS transition becomes a filing-season pressure point, businesses should review the vendor fields that matter most for 1099 preparation.

A W-9 is not just a form to collect and forget. It is the source document that helps a business gather taxpayer information from U.S. vendors, contractors, freelancers, and other payees.

The IRS Instructions for the Requester of Form W-9 explain that Form W-9 is used to request a U.S. person’s taxpayer identification number and certain certifications. You can read the IRS guidance here: IRS Instructions for the Requester of Form W-9.

Here are the vendor record fields to review.

1. Legal name

The legal name should come from the W-9, not from an email signature, invoice header, or internal nickname.

For individuals, this may be the person’s legal name. For businesses, it may be the registered legal entity name. If your accounting system only has a casual vendor label, your 1099 preparation can become messy later.

2. Business name or DBA

A vendor may operate under a business name, trade name, or DBA that is different from the legal taxpayer name.

That is not automatically a problem, but it needs to be recorded correctly. The legal name and business name should not be treated as the same field without review.

When IRIS replacing FIRE becomes part of your filing workflow, clean name fields will matter even more because electronic filing depends on structured, accurate information.

3. Taxpayer Identification Number

The TIN is one of the most important fields for information return preparation. Depending on the vendor, this may be an EIN, SSN, or another taxpayer identification number.

The IRS offers TIN Matching as a pre-filing service for eligible payers and authorized agents to validate name and TIN combinations before submitting information returns. You can review it here: IRS TIN Matching service.

If your vendor’s TIN is missing, incomplete, or stored insecurely, your process needs attention before filing season.

4. Federal tax classification

The W-9 asks the vendor to select a federal tax classification. This can include individual/sole proprietor, C corporation, S corporation, partnership, trust/estate, limited liability company, or other classifications depending on the form.

This field helps your accounting team review the vendor’s tax status and reporting treatment.

If your team ignores this field during onboarding, you may create confusion later when deciding how the vendor should be handled for reporting purposes.

5. Mailing address

Do not treat the address as a minor detail.

Addresses matter for recipient records, mailing, and internal vendor accuracy. If the vendor’s W-9 shows a new address, your records should be updated.

The IRS requester instructions also note that the full name and address provided on Form W-9 should be shown on the information return filed with the IRS and on the copy furnished to the payee.

6. W-9 completion status

Every vendor record should clearly show whether the W-9 is missing, requested, received, reviewed, or needs correction.

A folder full of PDFs is not enough.

Your team should be able to answer these questions quickly:

• Which vendors are missing W-9s?
• Which vendors submitted W-9s recently?
• Which records need review?
• Which vendors need follow-up before payment?
• Which vendors have complete records for 1099 preparation?

IRIS replacing FIRE should push teams to review vendor data earlier, not wait until January.

7. Submission history

Submission history gives your team accountability.

If a vendor says they already submitted a W-9, your team should not have to search old emails, Slack messages, spreadsheets, or shared drives to confirm it.

A cleaner process keeps the completed W-9 and the submission record together.

Why name and TIN mismatches create real work

A name/TIN mismatch is one of the most common vendor record problems.

The IRS states that TIN Matching is a pre-filing service used to validate TIN and name combinations before submitting information returns. That matters because incorrect combinations can lead to IRS notices and correction work.

The IRS W-9 requester instructions also explain that the IRS may send a notice if the payee’s name and TIN on an information return do not match IRS records. In some cases, a payer may need to send a “B” notice to the payee to request another TIN.

This is where weak vendor intake becomes expensive.

If your business paid a contractor without collecting a completed W-9, your team may not have the correct legal name or TIN when it is time to prepare 1099s. If the vendor record was created quickly just to process payment, cleanup gets pushed to year-end.

That is not a process. That is delayed risk.

For AP teams, IRIS replacing FIRE is less about software and more about data readiness.

Do not wait until after payment to collect W-9s

The worst time to request a W-9 is after the vendor has already been paid.

At that point, the vendor has less urgency. Your AP team is under pressure. The accounting team is closing books. The CPA or tax preparer is asking for clean data. Everyone is working backward.

A better workflow is simple:

• Request the W-9 before the first payment.
• Explain why the form is needed.
• Send automatic reminders.
• Keep completed W-9s in a secure central location.
• Review exceptions monthly.
• Avoid relying on January cleanup.

Some businesses use a “No W-9, no pay” workflow. That does not mean being aggressive with vendors. It means setting a clear payment policy so tax information is collected before it becomes a filing-season problem.

IRIS replacing FIRE makes it more important to collect W-9 forms before payment, not after.

W-9 cleanup checklist before IRIS replacing FIRE

Use this checklist before filing season pressure begins.

This cleanup does not need to wait until year-end. A mid-year vendor audit is one of the simplest ways to reduce 1099 season stress.

If IRIS replacing FIRE is already on your compliance radar, your W-9 process should be reviewed now.

Why spreadsheets are risky for W-9 and vendor records

Spreadsheets can work for a very small vendor list. But they break down quickly as the business grows.

The most common spreadsheet problems include:

• Sensitive TIN data stored insecurely
• Multiple versions of the same file
• No clear record owner
• No automatic reminders
• No submission history
• No easy way to identify stale records
• No connection between the completed W-9 and the vendor profile
• Manual sorting and filtering errors
• No audit trail

Spreadsheets feel flexible, but flexibility is not the same as control.

The move to IRIS replacing FIRE gives businesses a clear reason to stop relying on spreadsheets for vendor tax records.

How to prepare vendor records before IRIS replacing FIRE

Here is a practical action plan for AP teams, accounting teams, and CPA firms.

Step 1: Export your active vendor list

Start with vendors paid during the current year. Include contractors, freelancers, professional service providers, rent-related vendors, legal service providers, and other payees that may require review.

Step 2: Identify missing W-9s

Mark each vendor as complete, missing, requested, or needs review.

Do not rely on memory. Use a clear status field.

Step 3: Review legal names and business names

Compare vendor names in your accounting system against the W-9. Separate legal names from DBA or business names where needed.

Step 4: Check TIN status

Confirm whether the TIN has been provided and whether it needs further review. Eligible payers or authorized agents may use IRS TIN Matching before filing information returns.

Step 5: Review addresses

Check whether vendor addresses are complete and current. If a W-9 shows updated address information, update your records.

Step 6: Build an exception list

Create a list of vendors who need follow-up. This should include missing W-9s, incomplete forms, questionable names, missing TINs, or outdated addresses.

Step 7: Set a monthly review rhythm

Do not wait until January. Review W-9 status and vendor data monthly.

IRIS replacing FIRE is a filing-system change, but vendor readiness is an ongoing operations habit.

Where GetW9 fits into the process

GetW9 helps businesses collect, store, and track W-9 forms without relying on spreadsheets or manual follow-up.

Instead of chasing vendors one by one, teams can send W-9 requests, track completion status, and keep completed W-9 PDFs organized with submission history. That gives AP and accounting teams a cleaner process before 1099 season begins.

For businesses preparing for IRIS replacing FIRE, GetW9 supports the part that matters before filing: collecting accurate W-9 information from vendors and keeping those records easier to review.

That means fewer inbox searches, fewer missing forms, and less January cleanup.

Final takeaway on IRIS replacing FIRE

IRIS replacing FIRE is a filing system change. But for most businesses, the bigger risk is not the IRS system itself.

The bigger risk is entering a more digital filing environment with messy vendor data.

If your W-9 process depends on spreadsheets, inbox searches, manual reminders, and last-minute cleanup, the IRS transition should be your signal to fix the process now.

Clean W-9 records before filing season. Review vendor data before year-end. Build a process that makes 1099 preparation easier before the pressure starts.

GetW9 helps growing teams collect, store, and track completed W-9s so vendor records are cleaner, easier to manage, and ready before filing season arrives.

Prepare your vendor records before IRIS replacing FIRE becomes a filing-season problem. Use GetW9 to collect, store, and track W-9s without spreadsheets or last-minute chasing.

FAQ

Reference links used in this article

• IRS FIRE system retirement update
• IRS Topic 801: Who must file information returns electronically
• IRS E-file information returns
• IRS Topic 802: Applying to file information returns electronically
• IRS TIN Matching service
• IRS Instructions for the Requester of Form W-9

Disclaimer: This article is for general informational purposes only and should not be treated as tax, legal, or accounting advice. Businesses should consult a qualified tax professional for guidance specific to their situation.