A Social Security Number (SSN) is a unique nine-digit identification number issued by the United States Social Security Administration (SSA) to US citizens, permanent residents, and certain temporary workers, used for tracking individuals' earnings history for Social Security benefit purposes and as a primary means of identification for tax filing, credit applications, employment verification, and financial account opening across the US financial system. The Indian equivalent for financial purposes is the Permanent Account Number (PAN) — issued by the Income Tax Department — which serves as a universal identifier for tax compliance, investment account opening, large financial transactions, and KYC verification across India's financial system. For Indian investors with NRI status, US residency, or cross-border financial interests who engage with Ventura Securities' international investment services, understanding the SSN's role in the US tax and financial system — including FATCA (Foreign Account Tax Compliance Act) reporting obligations — is an important aspect of managing cross-border financial and tax compliance effectively.