Qualified Business Income Deduction: Limitation. CPA/EA Exam

How does the Qualified Business Income (QBI) deduction limitation work for high-income taxpayers? This lesson explains the Section 199A limitations, the phase-out ranges, and the W-2 wage and capital investment tests that cap the 20% deduction — built for REG CPA Exam candidates, EA students, and accounting students studying corporate and individual taxation. Try it free at farhatlectures.com — interactive exercises, lectures, simulations, cases, multiple choice, and AI tools for CPA, CMA, EA and students. Video Timeline & Key Concepts: 0:00 — Introduction 0:17 — The general rule: up to 20% of QBI subject to limitations 2:01 — Phase-out range for single filers 3:40 — Phase-out range for married filing jointly 4:34 — Specified service businesses and full elimination above the range 6:46 — Engineers and architects excluded from SSB 7:04 — The W-2 wage and capital investment limitation 11:51 — Example: income above the upper threshold 15:06 — Example: income within the phase-out range (four-step process) Frequently Asked Questions: Why does income level change the QBI deduction rules? Below the phase-out threshold, taxpayers get the full 20% deduction. Once taxable income exceeds the threshold, additional limitations based on business type, W-2 wages, and qualified property begin to reduce or eliminate the deduction. What is the W-2 wage and capital investment limitation? For high-income taxpayers with a non-service business, the QBI deduction is limited to the greater of 50% of W-2 wages, or 25% of W-2 wages plus 2.5% of the unadjusted basis of qualified property. What happens to a specified service business above the range? Once taxable income exceeds the upper end of the phase-out range, a specified service business receives no QBI deduction at all, because the deduction is completely phased out for those fields. Are engineers and architects treated as service businesses? No. Even though they provide professional services, engineers and architects are specifically excluded from the specified service business classification, so they are not subject to the stricter SSB phase-out rules. How is the deduction figured within the phase-out range? A four-step process is used to compute a reduction ratio based on where income falls in the range, then apply that ratio to phase in the wage and property limitation and arrive at the final allowable deduction. #CPAexam #CMAexam #enrolledagentexam #accountingcourses #collegecourses #courses #REG #Section199A #QBIdeduction #W2wagelimit #ProfessorFarhat #accountingstudents