 Income tax 2023-2024, alimony and IRA deduction. Get ready and some coffee so we can recognize the code cracks when doing income tax preparation 2023-2024. Most of this information can be found in the Instructions for Schedule 1 section of the Form 1040 Instructions tax year 2023, which you can find on the IRS website at irs.gov, irs.gov, looking at the income tax formula. We're focused on line 2 adjustments to income, which you might hear called above the line deductions or Schedule 1 deductions. Remember in the first half of the income tax formula is basically a funny income statement. Typically income statements having income minus expenses resulting in net income. Here having income minus various deductions resulting in tax.