The IRS Form 1040 is the standard form for personal income tax returns. It has several schedules that provide additional information to support the income, deductions, and credits reported on the form. Here are some exclusive schedules:

Beyond the standard numbered schedules, the IRS uses alphabetical schedules for highly specific types of income, deductions, and credits. Schedule A: Itemized Deductions

This schedule is exclusive because it requires a complex three-part calculation based on adjusted gross income (AGI), nontaxable pensions (like Social Security), and an initial "base amount" that varies by filing status.