The IRS is retiring its FIRE filing system on December 31, 2026 and replacing it with IRIS, a faster, more secure way to submit information returns. If you file through your payroll or accounting solution powered by Aatrix eFile, you're already covered. Aatrix has been IRIS-compliant since 2021, one of the first software providers to make the switch. Same process. Zero disruption. Read on to find out what's changing, what isn't, and why you don't need to lift a finger.