An ITIN, or Individual Taxpayer Identification Number, is a tax processing number only available for certain nonresident and resident aliens, their spouses, and dependents who cannot get a Social Security Number (SSN). It is a 9-digit number, beginning with the number 9, formatted like an SSN (NNN-NN-NNNN).
To have a document authenticated: 1  The document must be either notarized by a DC notary public or signed by an authorized head of a DC government agency. 2  The Office of Notary Commissions and Authentications does not notarize documents.3  The cost is $15 per document, payable by check, money order or Visa or Master Card. The document must be either notarized by a DC notary public or signed by an authorized head of a DC government agency. 2  The Office of Notary Commissions and Authentications does not notarize documents.
How much is it? On average, a notary is going to anywhere from $0 to as much as $10. Public companies, such as FEDEx Kinkos and the UPS Store, usually charge around $5 to $10 to have a single-page document notarized. For example, SFBayNotary.com charges $5 per every notarized signature.