A lockbox is a secure container used to store valuable items, documents, or cash. It typically features a locking mechanism to prevent unauthorized access, making it a popular choice for individuals and businesses to safeguard important assets. Lockboxes come in various sizes and materials, catering to different security needs. In finance, a lockbox system is a service offered by banks to streamline the collection of payments. Businesses use this system to have customer payments sent directly to a designated post office box. The bank then processes these payments, reducing the time it takes for companies to receive funds and improving cash flow management.