An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the US Internal Revenue Service (IRS). The IRS issues ITINs to track individuals that are not eligible to obtain a Social Security Number (SSNs).
The Society for Worldwide Interbank Financial Telecommunications (SWIFT) is a cooperative organization under Belgian law and is owned by its member financial institutions. The SWIFT code (also known as a Bank identifier Code, or ISO 9362) has a standard format to identify a bank, location, and the branch involved. The codes are used when transferring money between banks, particularly across international borders.