IRS sets November deadline for the switch to IRIS

The IRS has set a firm timetable for retiring the FIRE platform, turning information-return system migration into an immediate operational issue for filers that issue Forms 1099 and other third-party reporting documents. The agency’s August 24, 2026, announcement says FIRE will close after the November maintenance window, with IRIS becoming the required platform for tax year 2026 returns filed in the 2027 season.

The IRS said the last day to transmit information returns through FIRE will be **3 p.m. Eastern time on November 19, 2026**. Earlier checkpoints include **November 1, 2026**, when testing ends, and **November 9, 2026**, when changes to Information Returns Transmitter Control Code applications must be completed. Those dates come directly from the agency’s transition announcement.

The change is aimed at the 2027 filing season, when filers will report tax year 2026 information. The IRS says all forms previously supported by FIRE will be available through IRIS at that point. The agency describes the move as a modernization effort rather than a change in the substantive rules governing who must file, what must be reported or when recipients must receive statements.

The affected population is broader than large payroll processors. Businesses paying contractors, financial institutions, brokers, universities, nonprofits, government entities and tax professionals may all file information returns. The IRS’s current IRIS filing guidance lists Forms 1099-NEC, 1099-MISC, 1099-K, 1099-DA, 1099-INT, 1099-DIV, 1099-R, 1098 and 5498 among the forms available through the system.

The obligation is especially relevant because electronic filing generally applies when a filer has **10 or more information returns**, counting returns in the aggregate. That threshold, effective beginning with tax year 2023 under Treasury’s e-file regulations, means many organizations that once treated information reporting as an occasional administrative task already fall within the electronic-filing regime.

IRIS offers two filing channels. The free Taxpayer Portal allows manual entry or CSV upload, download of payee copies and record retention, but it is limited to **100 returns at a time**. The IRS says filers using third-party software or their own systems can instead use IRIS Application to Application, which is designed for larger volumes and requires technical setup, an application process and assurance testing.

That distinction makes the transition a technology project for high-volume filers, not simply a new website login. Organizations should identify which forms and corrections they file, confirm whether their vendor supports IRIS, obtain the appropriate five-digit Transmitter Control Code and test data flows before the FIRE deadline. The IRS is directing filers to IRIS QuickAlerts and monthly working-group meetings for further updates.

The platform change does not eliminate the need to collect accurate taxpayer identification numbers, reconcile payment data or furnish recipient statements on time. The 2026 General Instructions for Certain Information Returns continue to govern filing mechanics, backup-withholding reporting, corrections and payee statements.

For smaller filers, the practical question is whether the Portal is sufficient. For larger issuers, the risk is a failed integration during the compressed year-end reporting cycle. The IRS has not announced an extension of the November 19 FIRE cutoff, so filers should treat the date as a production deadline and preserve time for account approval, testing and error resolution.