Filing Information Returns Electronically (FIRE)

The Internal Revenue Service (IRS) accepts submissions of tax document data in 2 electronic formats, FIRE and IRIS.

The FIRE data format is being retired. Tax year 2025 is the last year in which it will be supported. As such, we are discontinuing any content about FIRE on this site.

The FIRE system is described at https://www.irs.gov/e-file-providers/filing-information-returns-electronically-fire.

The FIRE data standards are documented in IRS Publication 1220.