Schedule 3 – Additional Credits and Payments Covers nonrefundable and refundable credits not on Form 1040, like education credits, residential energy credits, or excess Social Security tax withheld.

Enter here and on line 23 of Form 1040 or 1040-SR or line ... there's an update to the 2023 instructions for Schedule 3, which covers Additional Credits and Payments. On page 103, the instructions ...