To apply for an ITIN, you must complete the form W-7 (available by clicking here) along with supplemental documents to prove your identity and foreign status. Attach a valid federal income tax return, ...

Apply for an ITIN in-person using the services of an IRS-authorized Certifying Acceptance Agent. The IRS indicates in their informational materials that if using this option you will not be required ...

Enter the ITIN, short for Individual Taxpayer Identification ... To apply by mail, mail your W-7, tax return, proof of identity and foreign status documents (originals or certified copies) to ...