U.S. Individual Tax Identification Number Explained – ITIN vs SSN vs EIN In case you have to file taxes in the USA, the presence of the proper tax identification number is imperative. Quite a few people and business proprietors, particularly non-residents and foreigners, are not sure which number they require. By knowing the differences between the U. S. individual tax identification number, Social Security Number (SSN), and EIN tax identification number, one can guarantee accurate tax filing and prevent delays and penalties from the IRS. Read more: https://optimizetax.io/itin-vs-ssn-vs-ein/