What is the main purpose of the Domestic USD Transfer System (SPID)?

The main purpose of the Domestic USD Transfer System (SPID) centers around the handling of same-day US dollar denominated payments. This system is specifically designed to ensure that transactions can be completed efficiently and promptly within the same business day, thereby facilitating quick liquidity for businesses and individuals who rely on time-sensitive transactions in USD. This capability is essential for maintaining the flow of funds and meeting the demands of various stakeholders in the financial system, allowing for effective cash management and operational efficiency.

While other options may touch upon important aspects of payment systems, they do not align with the primary function of SPID. For instance, the system is not primarily focused on low-value payments, currency exchange, or real-time settlements, but rather ensuring that US dollar payments can be processed without delay on the same day they are initiated. This specificity in purpose highlights the critical role of SPID in supporting the overall payments infrastructure in the domestic market.