IRIS
The Information Returns Intake System (IRIS) is mandatory for 2026
Mag-Filer Streamlines this for you.
With ZERO IRS Setup on your part!
And ZERO Transaction Fees!
IRS Transition from FIRE to IRIS Format
Overview
Starting with Tax Year 2026 / Filing Season 2027, the only E-Filing option is through the IRIS (Information Returns Intake System).
Mag-Filer is fully IRIS Compliant - and we have a Streamlined Transmitter Portal Option to eliminate all of the extra hassles!
IRIS Transmitter Process
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Apply for a new IRIS TCC through IRS e-Services (allow up to 45 days; a FIRE TCC cannot be converted)
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Complete Assurance Testing System (ATS) requirements if you transmit as a software/A2A transmitter
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Submit test files and pass IRS validation before Production filing
More Here: Step by Step Direct IRIS Connection Process
Mag-Filer Support
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Mag-Filer is fully compliant with IRIS formatting and validation requirements.
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Each transmitter must complete the IRS’s testing process independently.
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OR -
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Transmitter Portal Option: Mag-Filer offers a portal that eliminates the need for a separate TCC or validation process by using a pre-tested TCC - with ZERO Transaction Fees!
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So, each transmitter is welcome to tackle this with the IRS – but as a backup option, Mag-Filer offers our Transmitter Portal that eliminates you going through the validation process. It even eliminates your requirement to acquire your own TCC, since we submit under a previously tested TCC which is managed by the Portal.
Please see details regarding the Mag-Filer Transmitter Portal on the Mag-Filer website – or Email or Call us at Support@Mag-Filer.com or 800-565-6576.
FAQ
Do I need a new TCC for IRS IRIS in 2026?
Yes. IRIS requires a new Transmitter Control Code. IRS approval can take up to 45 days. Mag-Filer can transmit with your own IRIS TCC after you complete IRS Assurance Testing, or you can use Mag-Filer’s Secure Transmitter Portal and skip getting your own TCC.
What is the difference between FIRE and IRIS?
FIRE is the legacy IRS e-file system being sunset. IRIS (Information Returns Intake System) is required for 1099 electronic filing in 2026. Mag-Filer supports both. Unlike FIRE, IRIS can accept valid payee records even when other records in the same file fail.
Can I e-file 1099s with Mag-Filer if I don’t have a TCC?
Yes. Choose the Secure Transmitter Portal in Mag-Filer’s e-file window. Mag-Filer submits under its already-tested TCC, so you don’t need your own TCC or ATS validation.
What is IRIS Assurance Testing (ATS)?
ATS is the IRS test process before IRIS production filing. You submit fictional test data (for example TINs starting with 000), include a manifest, pass schema and business-rule checks, then complete a communication test. The Transmitter Portal option avoids doing ATS yourself.
What about uploading a CSV to the IRS Tax Payer Portal?
The Taxpayer Portal CSV Upload has a 250 Payee per upload limit - not a solution for businesses with a larger number of Payees