QBI Deduction for Doctors: Why Most Physicians Don’t Qualify | SDO CPA

QBI Deduction for Doctors: Why Most Physicians Don’t Qualify (and What to Do About It)

The QBI deduction is one of the most valuable tax breaks in the current tax code. And for most physicians, it’s completely out of reach.

That’s not a planning failure — it’s the law. Healthcare is classified as a Specified Service Trade or Business (SSTB) under Section 199A. That classification means the QBI deduction for doctors phases out entirely once taxable income crosses $544,600 for married couples filing jointly in 2026. For most attending physicians, that threshold isn’t a stretch goal — it’s a number they crossed years ago.

But the story doesn’t end there. Some physicians do qualify, and nearly all physicians have planning decisions that interact with QBI in meaningful ways. Understanding the rules helps you make better choices — whether that’s around retirement contributions, entity structure, or income timing.

Can doctors take the QBI deduction?

Most physicians can’t claim the full QBI deduction because healthcare is a Specified Service Trade or Business (SSTB). For 2026, the deduction phases out completely for physicians with taxable income above $544,600 (married filing jointly) or $272,300 (single). Below $203,000 (single) or $406,000 (MFJ), even physicians may claim the full 20% QBI deduction. Most practicing physicians with S-Corp income are well above the cutoff — but there are planning strategies worth knowing. The One Big Beautiful Bill Act (OBBBA), signed July 2025, made the QBI deduction permanent — no more sunset risk.

Key Takeaways

• Healthcare is classified as an SSTB — the QBI deduction phases out above income thresholds for physicians and most licensed healthcare providers
• For 2026, the deduction is eliminated above $544,600 (MFJ) or $272,300 (single) — most full-time attending physicians don’t qualify
• Physicians below $406,000 (MFJ) may still claim a full or partial deduction — early-career and part-time physicians should check their numbers
• Retirement contributions reduce taxable income — large solo 401(k) or cash balance plan contributions may bring income below the threshold and make a partial deduction available
• The OBBBA made QBI permanent — the One Big Beautiful Bill Act (signed July 2025) eliminated the prior sunset; the QBI deduction is now permanent law
• Non-medical income streams may qualify independently — rental property income and non-SSTB business income aren’t subject to SSTB phase-out rules

What Is the QBI Deduction?

Section 199A, created by the Tax Cuts and Jobs Act of 2017, allows self-employed individuals and pass-through business owners to deduct up to 20% of their qualified business income. Pass-through income includes S-Corp distributions, partnership income, and sole proprietor net earnings.

For a non-SSTB business owner — say, a plumber with $200,000 in net business income — the math is straightforward. A 20% deduction equals $40,000. At a 37% federal rate, that’s roughly $14,800 in tax savings. High-income non-SSTB owners face different limitations (W-2 wage limits and capital investment tests), but the deduction doesn’t disappear just because their income is high.

For SSTB owners, the rules are different. The deduction phases out as income rises and disappears completely above the upper threshold.

The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, made Section 199A permanent. There’s no longer a sunset risk. The QBI deduction is now a permanent part of the tax code — subject to future legislation, but no longer expiring automatically.

Why Physicians Are Classified as SSTB — and What That Means

The IRS defines health as one of the SSTB categories. That covers physicians, surgeons, dentists, nurses, physical therapists, psychologists, and other licensed healthcare providers. If your income comes from providing health services, you’re in SSTB territory.

This matters because SSTB status triggers phase-out rules that non-SSTB businesses don’t face. A software engineer with $1 million in S-Corp income can still claim a QBI deduction (subject to W-2 wage limits). A cardiologist with the same income gets zero.

Here are the 2026 income thresholds (inflation-adjusted by IRS):

2026 figures, indexed for inflation. Verify current thresholds at irs.gov before planning.

Between the lower and upper thresholds, a partial deduction is available through a complex calculation. Above the upper threshold, the deduction is zero — period.

When Physicians CAN Claim the QBI Deduction

The SSTB rules don’t automatically disqualify every physician. There are real situations where the deduction applies:

Early-career physicians. A first- or second-year attending who hasn’t ramped to full production may still have taxable income below the phase-out range. If your taxable income as a single filer sits below $203,000, you may claim the full 20% deduction even as an SSTB.

Part-time or semi-retired physicians. A physician scaling back to two or three days per week may find their taxable income drops into deductible territory.

Physicians with large retirement contributions. This is the most actionable strategy for full-time attendings. Large pre-tax contributions reduce taxable income directly — and QBI eligibility is based on taxable income, not gross.

Consider a married physician with $550,000 in practice income. With a $72,000 solo 401(k) contribution, a $100,000 cash balance plan contribution, and other deductions, taxable income might land in the $350,000–$380,000 range. That’s in the partial phase-out zone — some QBI deduction may become available.

Retirement Planning as a QBI Strategy

The QBI deduction phases out based on taxable income. That creates a direct connection between retirement contributions and QBI eligibility.

Maximizing contributions to a solo 401(k), cash balance plan, or defined benefit plan reduces your taxable income dollar-for-dollar. For physicians near the phase-out range, this can shift you from zero deduction to a partial one. For those deeper into the phase-out, it won’t close the gap — but the retirement contributions still have independent value.

One important caution: don’t engineer your income solely to chase the QBI deduction. The contributions need to make sense as retirement savings on their own merits. At full production, retirement contributions plus the QBI benefit can be significant. But the deduction shouldn’t be the primary driver of your contribution strategy.

If you’re interested in how retirement planning intersects with your overall tax picture, see our physician retirement planning overview.

QBI on Non-SSTB Income

Here’s a planning point many physicians miss: the SSTB phase-out applies to SSTB income. It doesn’t contaminate every income source you have.

If you own rental property that rises to the level of a trade or business — generally requiring active management, not just passive ownership — that rental income may qualify for the QBI deduction independently of your physician income. The thresholds still apply, but the SSTB classification doesn’t.

The same logic applies to non-medical S-Corps. A physician who owns a medical device company, a management company, or a real estate business that’s structured separately from the medical practice may have QBI on those income streams. That income isn’t healthcare income, so it’s not subject to SSTB rules.

If you have multiple income streams, proper segregation between SSTB and non-SSTB income is critical. Commingling these in a single entity can muddy the analysis and cost you deductions you’d otherwise qualify for. See our QBI deduction guide and QBI calculator for more detail on how the deduction is computed across multiple income sources.

For physicians with an S-Corp election, the analysis gets more complex — reasonable compensation requirements interact with the QBI calculation in ways that require careful modeling. Our maximizing QBI for S-Corps breakdown covers those mechanics.

The OBBBA Made QBI Permanent

The QBI deduction was created by the Tax Cuts and Jobs Act of 2017 with a built-in expiration after December 31, 2025. That sunset is gone. The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, made Section 199A permanent.

No more legislative cliff. No more “will Congress extend it?” planning conversations. The 20% QBI deduction is now part of the permanent tax code.

The OBBBA also made a notable tweak: taxpayers with at least $1,000 in qualified business income now receive a minimum $400 QBI deduction regardless of income level or SSTB status. It’s a small dollar amount for most physicians, but the principle matters — even high-income SSTB owners get a floor.

For physicians, this changes the planning calculus slightly. The SSTB phase-out rules are unchanged — you still lose the deduction above $544,600 MFJ. But the permanence matters for long-term planning, particularly if you have non-SSTB income streams where the full deduction applies indefinitely.

Frequently Asked Questions

Is a physician assistant (PA) or nurse practitioner subject to SSTB rules?

Yes. The SSTB health category covers licensed healthcare providers broadly — not just physicians. PAs, nurse practitioners, dentists, physical therapists, and other licensed providers whose income comes from health services fall under the same SSTB rules and face the same phase-out thresholds.

Can I restructure my practice to avoid SSTB classification?

Not easily. The SSTB classification follows the nature of the income — if you’re generating revenue by providing health services, that income is SSTB income. Some strategies involve segregating non-health functions into separate entities, but those arrangements require substance and carry audit risk. This is an area where the facts and structure matter enormously; get specific advice before attempting it.

Does the QBI deduction apply to my S-Corp income?

It can, but SSTB rules still apply. An S-Corp structure doesn’t change your SSTB classification. If your taxable income is above the phase-out threshold, your S-Corp income won’t generate a QBI deduction. The S-Corp election for physicians may still benefit you through payroll tax savings — those are separate from QBI.

What if my spouse is not a physician — do we still get hit by SSTB limits?

The SSTB rules apply to the business income, not the individual. If your spouse has non-SSTB business income, that income may qualify for QBI separately. But your combined taxable income on a joint return determines where you fall relative to the thresholds. A high-earning physician spouse may push joint income above the limit even if the other spouse’s income alone wouldn’t.

Did the QBI deduction expire after 2025?

No. The One Big Beautiful Bill Act (OBBBA), signed July 4, 2025, made Section 199A permanent. There’s no longer a sunset. The deduction continues indefinitely under current law — though future Congresses could always modify it, just as they can with any tax provision.

Understand What You Can and Can’t Claim

Most physicians won’t qualify for the QBI deduction on their practice income. That’s the honest answer. But the interaction between retirement contributions, SSTB thresholds, and non-medical income creates real planning decisions that affect your tax bill — and with QBI now permanent under OBBBA, those planning decisions are worth making for the long term.

SDO analyzes your QBI eligibility as part of physician tax planning that covers your full picture — not just one deduction in isolation. We model the relationship between retirement contributions, QBI phase-out, and your effective tax rate across multiple scenarios.

If you want to know whether any QBI deduction is available to you — and what it would take to access it — let’s talk.

Income thresholds shown are 2026 figures, indexed for inflation annually. The QBI deduction (Section 199A) was made permanent by the One Big Beautiful Bill Act (OBBBA), signed July 4, 2025. Verify current thresholds at IRS.gov or with a qualified tax professional before making planning decisions.