Requirements are to complete the IRS Forms 1040 Lines 1-15, 16-37, and the following forms: Schedule A, B, C, D, E, SE, 1, Form 8949, Form 8582, and Form 4562. There is a Check Figures page to make sure all the math is adding up while you're completing the Tax Forms. All line numbers and check figures are related to 2021 IRS Forms.