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.
Notaries charge a modest fee for this service. Fees charged often depend on where you get a document notarized. Many states set maximum allowable charges, and notaries can charge any amount up to that maximum (and they can also charge nothing at all). In many cases, notarial charges are between $2 and $20 per signature.