# Form W-7 and the tax return

Lesson 2 of [ITIN basics: what it is and how to apply](https://itinagents.fyi/academy/itin-basics-for-applicants.md), 12 minutes.

You apply for an ITIN on Form W-7, Application for IRS Individual Taxpayer Identification Number. You also use Form W-7 to renew an ITIN. Attach a federal tax return In most cases you attach a US federal tax return to Form W-7. The return and the form go in the same package. If you mail the package,…

The rest of this lesson is for learners enrolled in the course. [See how ITIN basics: what it is and how to apply works](https://itinagents.fyi/academy/itin-basics-for-applicants.md).

Also on the [web page](https://itinagents.fyi/academy/itin-basics-for-applicants/form-w-7-and-the-tax-return).