The QBI Deduction for Physicians (and Why the SSTB Limits Matter)
The qualified business income (QBI) deduction can be worth up to 20% of business income — a significant break for the self-employed. But for physicians, there's a catch built into the law: medicine is treated as a "specified service trade or business" (SSTB), which means the deduction phases out above certain income levels. Understanding exactly how that works is where the planning opportunity lives.
How the SSTB Limitation Works
For most business owners, the QBI deduction is straightforward. For SSTBs — which include health, law, accounting, and consulting — the deduction begins to phase out once taxable income passes an IRS threshold and disappears entirely above an upper limit. Many practicing physicians earn above those limits, which is why they're often told they "don't get" the QBI deduction.
Where Planning Can Help
"Above the threshold" isn't always the end of the story. Because the deduction hinges on taxable income, strategies that reduce it — maximizing retirement contributions (including cash balance plans), certain entity and income-timing approaches, and charitable planning — can sometimes pull income back within range and preserve part of the benefit. For physicians near the threshold, this is worth modeling carefully.
The Takeaway
The QBI deduction for physicians is a threshold game. Whether you can capture any of it depends on levers you control during the year — not on your specialty. It's a good example of why proactive planning beats reactive filing.
General educational information, not tax advice. QBI thresholds and SSTB rules are fact-specific and change annually — consult a qualified advisor.
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