Tax & Compliance

Are healthcare practices specified service trades or businesses (SSTB)?

Yes. Under IRC Section 199A, the field of health is explicitly listed as an SSTB, including services performed by physicians, dentists, nurses, physical therapists, and similar healthcare professionals. SSTB status restricts the QBI deduction above income thresholds.

Reviewed by Stanislav Sukhinin, CFALast reviewed September 30, 2026

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Definition

A specified service trade or business (SSTB) is a business in certain professional fields (health, law, accounting, consulting, financial services, athletics, performing arts) where the QBI deduction phases out above income thresholds.

The detail

Section 199A(d)(2) defines SSTBs as trades or businesses involving the performance of services in fields including health, law, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage services, and any business where the principal asset is the reputation or skill of one or more employees or owners. Treasury Regulations under Section 1.199A-5 clarify that the field of health includes physicians, pharmacists, nurses, dentists, veterinarians, physical therapists, psychologists, and other similar healthcare professionals. Health does not include services not directly related to a medical services field, such as operating health clubs or health spas that provide physical exercise or conditioning, payment processing, or the research, testing, manufacture and sale of pharmaceuticals or medical devices. Splitting a practice into SSTB and non-SSTB pieces mostly fails when the owners are the same. If a business provides property or services to an SSTB and there is 50 percent or more common ownership, the portion provided to the SSTB is treated as a separate SSTB; the Treasury's own example is a dentist whose building entity leases to the dental practice, and that rent is SSTB income. What can still qualify is business with unrelated parties, such as space leased to outside tenants. A de minimis rule also applies: a business with $25 million or less of gross receipts is not an SSTB if less than 10 percent of those receipts come from the specified service.

What this means for clinic owners

From Sorso

Holding your building or equipment in a separate entity is still worth doing for liability and exit flexibility, but do not count on it for the QBI deduction. When you own 50 percent or more of both the practice and the property entity, the rent the practice pays you is treated as SSTB income. The QBI lever that does work is keeping taxable income below the threshold, usually through retirement plan contributions.

Stanislav Sukhinin, CFA

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Related questions

What tax deductions are available to medical practices?

Medical practices can deduct ordinary business expenses including staff wages, rent, equipment depreciation, supplies, malpractice insurance, CME, retirement plan contributions, and qualified business income (QBI) where eligible.

What retirement plans work best for clinic owners?

The best retirement plans for clinic owners are a Solo 401(k) or SEP-IRA for solo practices (up to $72,000 for 2026, or $80,000 in a Solo 401(k) with the age-50 catch-up) and a 401(k) paired with a cash balance plan for high-earning partners, which Fidus Actuarial's 2026 illustrations put at about $252,000 a year at age 50 and $382,000 at age 60 for an owner at the $360,000 compensation cap.

What is the QBI deduction for healthcare?

The Section 199A Qualified Business Income (QBI) deduction allows a 20 percent deduction on qualified business income from pass-through entities, but it phases out for healthcare specified service trades or businesses (SSTB) above income thresholds ($403,500 MFJ for 2026 per IRS Rev. Proc. 2025-32).

How do I structure a practice for tax efficiency?

A tax-efficient practice structure usually starts with an S corporation election for the clinical practice (held in a PC or PLLC where state law requires one) and a retirement plan sized to the owners' income, with a separate real estate LLC or MSO added for liability, financing or exit reasons. Those extra entities do not preserve the QBI deduction when the same owners hold 50 percent or more of both sides.

Stanislav Sukhinin, CFA — Founder of Sorso
Stanislav Sukhinin, CFA

Founder of Sorso and a CFA charterholder. Before Sorso, Stan spent 19 years in corporate finance at institutions including UniCredit and Société Générale — managing a $450M loan portfolio and making senior partner at a major mezzanine lender by 29 — then built a fractional CFO firm exclusively for outpatient healthcare clinics.

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