The qualified business income (QBI) deduction is not a business deduction; it does not appear on Schedule C or any other business tax return. Instead, it is a personal deduction on Form 1040 that is subtracted after reducing adjusted gross income by the standard deduction or itemized deductions.
Test for determining deductibility of IRA deductions. Active participants in employer retirement plans are subject to IRA deduction phase-out rules if adjusted gross income exceeds certain threshold.