Tax Strategy for Optometrists (2026 Guide)

An optometry practice is two businesses sharing a floor plate. One provides professional eye care services. The other sells frames, lenses, and contact lenses at retail.

For income tax purposes those two businesses can be treated very differently, and the difference is worth up to 20% of the retail income to an owner above the qualified business income phase-out.

The Specified Service Question

Health services are a specified service trade or business under IRC Sec. 199A, so above the income phase-out the qualified business income deduction is unavailable on the professional side.

Retail sale of goods is not a specified service trade or business. An optical dispensary selling frames, lenses, and contacts is selling products.

Treasury Regulation Sec. 1.199A-5(c) governs when activities can be treated separately and when one taints the other. Where a trade or business provides property or services to an SSTB and there is 50% or more common ownership, the portion providing those services is treated as an SSTB. An optical dispensary selling to patients, not to the practice, is not providing services to the SSTB.

There are de minimis rules cutting both ways. A business with gross receipts of $25,000,000 or less is not an SSTB if less than 10% of gross receipts are attributable to the performance of services in an excluded field. Above $25,000,000 the threshold is 5%.

For a practice where professional fees are 55% and optical is 45%, neither de minimis rule applies, and the question becomes whether the optical operation is a separate trade or business.

Separating the Optical Business

Where the optical operation is genuinely separate, with its own books, its own inventory, its own employees, its own economics, and ideally its own entity, the position that it is a non-SSTB trade or business is considerably stronger.

Practices that run optical as an undifferentiated department of the professional practice, with combined books and shared staff, have a weaker position.

This is not a paper exercise. Building the separation requires real operational changes: separate general ledger, separate payroll for optical staff, arm's length arrangements for shared space and services, and separate financial reporting.

For a practice with $600,000 of optical income, the deduction at stake is $120,000 annually. That justifies meaningful operational effort.

The arrangement should be documented and implemented prospectively. Reclassifying retroactively at filing is not a position that holds up.

Inventory and Accounting Method

Optical dispensaries carry substantial frame and lens inventory. Practices with average annual gross receipts under the IRC Sec. 448(c) threshold may use the cash method, are exempt from Sec. 263A, and may treat inventory as non-incidental materials and supplies.

For a practice on the accrual method with $180,000 of frame inventory and $140,000 of insurance receivables, a change to the cash method produces a meaningful Sec. 481(a) deduction in the year of change, filed on Form 3115.

This is a smaller opportunity than in a pharmacy, but it is real and it is usually available.

Equipment Is Substantial and Recurring

Optical coherence tomography, visual field analyzers, fundus cameras, autorefractors, phoropters, slit lamps, lensometers, edgers and finishing equipment, and practice management hardware are five-year property, fully deductible in the placed-in-service year under IRC Sec. 168(k) or IRC Sec. 179.

Diagnostic equipment cycles every five to eight years, which makes this a recurring rather than one-time planning item. A practice adding $150,000 of diagnostic capacity every few years has a deduction stream that should be timed against income.

Financing does not reduce the deduction. Equipment placed in service with 10% down is fully deductible that year, which decouples the purchase decision from cash availability.

Build-Out and Real Estate

Optometry build-outs reclassify at 32% to 45% of construction cost. Exam lane casework and instrument stands, dedicated power and data serving each lane, dispensary display fixtures and lighting, finishing lab equipment and its dedicated plumbing and dust collection, decorative lighting, and specialty finishes are five-year property.

Retail display lighting deserves attention. Optical dispensaries invest heavily in display lighting because frame presentation drives sales, and decorative and accent lighting is five-year property rather than building.

The structural remainder of a leasehold build-out generally qualifies as QIP under IRC Sec. 168(e)(6) with a 15-year life and full bonus eligibility.

Owners who purchase their building have a second study available, typically reclassifying 20% to 30%, subject to the self-rental rules under Treasury Regulation Sec. 1.469-2(f)(6).

Worked Example: Two-Doctor Practice

A 49-year-old owner runs a practice with $2,100,000 of revenue, of which $1,150,000 is professional fees and $950,000 is optical, producing $520,000 of profit before owner compensation. The structure is an S corporation with a $215,000 salary and 11 employees.

The optical operation is separated into its own entity with its own books, staff, inventory, and a documented arm's length arrangement for shared space. Optical profit of approximately $210,000 is analyzed as a non-SSTB, preserving a qualified business income deduction of roughly $42,000 that was previously unavailable.

A $190,000 diagnostic equipment purchase is placed in service and fully deducted.

A safe harbor 401(k) with new comparability profit sharing directs $69,000 to the owner at approximately $23,000 of staff cost.

A look-back cost segregation study on the $620,000 build-out completed five years ago, filed with Form 3115, produces a $228,000 catch-up deduction.

Combined first-year tax reduction is approximately $200,000, with the QBI position recurring annually.

Frequently Asked Questions

Can an optometry practice claim the QBI deduction?

The professional side is health services and therefore a specified service trade or business under IRC Sec. 199A, phasing out above the income threshold. The optical retail operation sells goods and is not an SSTB, so that portion may retain the deduction if genuinely separate.

What does separating the optical business require?

Real operational separation: its own general ledger, its own inventory, its own payroll for optical staff, arm's length arrangements for shared space and services, and ideally its own entity. Reclassifying retroactively at filing is not a defensible position.

Does the de minimis rule help me?

Only at the extremes. A business under $25,000,000 of gross receipts is not an SSTB if less than 10% of receipts come from excluded field services. For a practice where professional fees are half the revenue, the de minimis rule does not apply and separation is the path.

Can I use the cash method with frame inventory?

Generally yes if average annual gross receipts are under the threshold, $31 million for 2025. The small business exception exempts you from Sec. 263A and permits treating inventory as non-incidental materials and supplies. The change is made on Form 3115.

Is diagnostic equipment fully deductible in year one?

Yes, as five-year property under IRC Sec. 168(k) or Sec. 179. Financing does not reduce the deduction, since it follows the placed-in-service date rather than cash paid, so a purchase with 10% down produces the full write-off.

Tax Strategy for Optometrists: The Optical Retail Split and QBI