Social Security Number (USA)

A Social Security Number (SSN) is a unique nine-digit identifier issued by the U.S. government to individuals for tracking earnings and benefits within the social security system. It is used primarily for tax reporting, work eligibility verification, and access to social security benefits. While not a form of identification like a driver’s license, it is essential for employment, banking, and some government services. SSNs are confidential and should be protected to prevent identity theft. They do not carry any inherent meaning beyond serving as a lifelong reference number for social security and related administrative purposes.