# Certifying acceptance agent or acceptance agent

Lesson 2 of [Choose and work with an ITIN acceptance agent](https://itinagents.fyi/academy/choose-an-itin-acceptance-agent.md), 14 minutes.

Both kinds of agent are in the IRS Acceptance Agent Program. The main difference is what happens to your original documents. What both kinds do - Help you complete Form W-7. - Mail the ITIN application package to the IRS. - Work with the IRS to resolve issues with your application. - Prepare your ta…

The rest of this lesson is for learners enrolled in the course. [See how Choose and work with an ITIN acceptance agent works](https://itinagents.fyi/academy/choose-an-itin-acceptance-agent.md).

Also on the [web page](https://itinagents.fyi/academy/choose-an-itin-acceptance-agent/caa-or-aa).