An Individual Taxpayer Identification Number (ITIN) is a United States tax processing number issued by the Internal Revenue Service (IRS). It is a nine-digit number beginning with the number “9”, has a range of numbers from "50" to "65", "70" to "88", “90” to “92” and “94” to “99” for the fourth and fifth digits and is formatted like a SSN (i.e. 9XX-7X-XXXX). Temporary identification numbers are issued to the main taxpayer only and these numbers are usually triggered after a 45-day suspension period. Filing the W-7 application incorrectly, checking the wrong box for the reason the individual is submitting a W-7 form or if the taxpayer's identifying documents are not accepted by the IRS, can be a reason for which the taxpayer may receive a temporary taxpayer identification number. ITIN numb