Final answer:
The QBI deduction is a deduction for AGI that reduces the taxable income of individuals who report business income.
Step-by-step explanation:
The QBI (Qualified Business Income) deduction is a deduction for AGI. It reduces the taxable income of individuals who report business income from a sole proprietorship, partnership, S corporation, or certain trusts or estates. This deduction allows eligible taxpayers to deduct up to 20% of their qualified business income from their taxable income.