It is a summary of all of the tax credits that you receive on your tax return.
A tax credit is a credit provided by the government that reduces the amount of taxes owed dollar per dollar. Some tax credits are refundable some are not. A refundable tax credit provides a refund of the amount of the credit that still exists after reducing taxes owed to zero. A nonrefundable credit can reduce your tax liability to 0 (zero); however, it cannot result in a refund.
For 2024, some of the tax credits you may have received may be: