Iran Sanctions Accountability Act of 2023

This bill requires the President to issue regulations within 180 days to block U.S. financial transactions that support Iran's sanctioned entities, terrorism, or weapons of mass destruction proliferation. It mandates annual reports to Congress evaluating these regulations' effectiveness. The bill also directs the U.S. to oppose World Bank financial aid to Iran's government, though this provision expires after 7 years or if Iran stops supporting terrorism. It directly affects U.S. financial institutions, businesses, and entities engaging in transactions with Iran, ensuring compliance with existing sanctions.