Stop Tax Penalties on American Hostages Act of 2024

This bill provides tax relief for U.S. citizens wrongfully detained abroad or held hostage. It postpones tax deadlines and disregards the detention period when calculating penalties, interest, or tax liabilities for affected individuals. The law requires the State Department and Attorney General to provide Treasury with lists of eligible individuals by January 2025, enabling refunds for penalties paid during detention (from January 2021 through the bill's enactment). Individuals must apply for refunds through a new program established by Treasury, with extended deadlines for claims after notification.