The FIRE-to-IRIS transition, documented plainly.
January 31 is a Sunday, so the 1099-NEC deadline is February 1. Three dates shift this season, with the arithmetic shown.
The FIRE file layout against the IRIS XML specification: how records map, and the amount-code trap that files dollars in the wrong place.
What the free route does, and why the 100-return cap is not the number that actually constrains you.
How to get a Transmitter Control Code, what holds applications up, how long the queue really is, and when you can skip it entirely.
IRIS does. The dates, what changes on the wire, who has to act, and the three ways through it.
Timeline, what changes, and what tax professionals need to do before the December 31, 2026 FIRE shutdown.
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