QuickAlerts - Information Returns Intake System (IRIS) A2A Schema and Business Rules are Available

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QuickAlerts for Tax Professionals

September 14, 2026

Subject: Information Returns Intake System (IRIS) A2A Schema and Business Rules are Available

Attention: Software Developers and Information Return Transmitters

Tax Year 2026 IRIS Schema Release Number v1.1 and Business Rules v1.1 are available through the SOR mailbox.

The SDK folder includes Java and .NET SDK packages.

Software Developers and State organizations may download IRIS Schemas and Business Rules from their e-Services mailbox. To access these files, you must have:

An active e-Services account
An IRIS TCC application with the status “Completed”
An IRIS TCC status of “Active”
An IRIS role of “Software Developer” or business structure of “State Government Agency”, “Local Government Agency”, or “Federal Government Agency”

Software Developers and State organizations will need to contact the Help Desk to obtain IRIS Schema and Business Rules for Tax Years 2017-2021.

Please visit the IRIS Schemas and Business Rules page on IRS.gov for more information about IRIS Schemas and Business Rules.

You may have several messages in your account. Please open all of them to find the set you would like to download. After 60 days the messages are purged.

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