Tax
Qualified Business Income (QBI) Deduction
A 20% deduction on qualified business income from passthrough entities, available to most small business owners.
Section 199A allows owners of partnerships, S-corps, and sole proprietorships to deduct up to 20% of their qualified business income from their taxable income.
The deduction phases out for high-income owners in 'specified service trades or businesses' (SSTBs) — health, law, accounting, consulting, and others. Below the phase-out thresholds (~$383K married / $191K single in 2024), QBI generally applies.
Common pitfalls
- Owners over the SSTB threshold lose QBI entirely — common for high-income professionals
- S-corp owners must coordinate W-2 wages and reasonable comp with QBI computation
- Real estate rental income may or may not qualify based on safe-harbor rules
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