Which agency is responsible for collecting delinquent debts across the government?

The U.S. Treasury is the agency responsible for collecting delinquent debts across the government because it manages federal finances and is tasked with ensuring that federal debts are collected in an efficient and effective manner. The Treasury's Debt Management Services engages in various activities related to debt collection, including issuing notifications of debt and employing various methods to recover outstanding payments. This function is crucial for maintaining the government's financial health and upholding the integrity of public funds.

This role is allocated to the U.S. Treasury over other agencies because of its central position in managing federal financial transactions and its expertise in handling monetary policies and debt recovery processes. Other agencies, like the Department of Justice, assist with legal aspects of debt collection, but the Treasury is ultimately responsible for the collection of delinquent debts on a broader scale.