2025 Form 1040 Schedule 3 Instructions. See the links below for more detailed tutorials on each line item. See the forms, schedules, instructions, and publications for the year of the tax return you are amending for guidance on specific topics.

It’s specifically designed for taxpayers to claim various tax credits that are not. Schedule 3 (form 1040) is an additional form that you may need to complete and attach to your form 1040, depending on your individual tax situation.