Tax planning for ophthalmologists with practice + ASC equity

Ophthalmology K-1 income from practice + ASC + refractive cash-pay is a complex tax situation. Here’s the structure. The path from resident to partner is a financial marathon, but the finish line—equity in a practice and an Ambulatory Surgery Center (ASC)—presents a new set of challenges. Suddenly, your income isn’t just a W-2. It’s a mix of salary, partnership distributions, real estate income, and cash-pay revenue from refractive procedures. This complexity is a massive opportunity for tax savings, but only if you understand the architecture. Most of us learn this the hard way: by overpaying taxes for years before realizing the power of structuring these entities correctly. This guide is the blueprint I wish I had, breaking down the five core strategies every ophthalmology partner needs to master. For a broader look at financial tools and resources, you can explore the ophthalmology free tools hub.

Structuring Your ASC K-1 for Maximum Tax Efficiency

When you buy into an ASC, you stop being just an employee and become an owner. Your share of the center’s profit (or loss) flows to you via a Schedule K-1. This isn’t just another income form; it’s a lever for tax planning. The first critical distinction is whether your involvement is considered “active” or “passive” under IRS rules.

For most surgeon-owners, participation is active. You meet the material participation tests outlined in IRS §469 by virtue of your hours worked and management decisions. This is crucial because it means if the ASC generates a loss in a given year (perhaps due to large equipment purchases creating paper losses via depreciation), you can potentially use that loss to offset your other active income, like your W-2 salary from the practice. A passive loss, in contrast, can generally only offset passive income.

The next layer is your “basis” and “at-risk” amount. Your basis is essentially your financial stake in the ASC—the cash you put in plus your share of any ASC debt. You can only deduct losses up to your basis. This is a common trap for new partners.

Planning Trap to Avoid: A partner buys in with a small cash down payment, with the rest financed by the practice. Their initial cash basis is low. If the ASC takes a large paper loss in year one from accelerated depreciation on a new femtosecond laser, the new partner may not have enough basis to deduct their full share of that loss. Understanding how your buy-in is structured is critical to maximizing these early-year deductions. You need to ensure your at-risk amount is sufficient to absorb any expected losses.

The goal is to create a balanced structure. You take a “reasonable compensation” as a W-2 salary from your surgical practice, which is subject to payroll taxes. The remaining profit from both the practice and the ASC flows through as K-1 distributions, which are not subject to self-employment taxes. This layered approach gives you control over tax characterization and retirement plan contributions.

The Medical Real Estate Play: Owning Your Own Walls

One of the most powerful wealth-building and tax-reduction strategies for physician partners is to own the real estate where the practice and ASC operate. The structure is straightforward but profoundly effective.

Here’s the how-to sequence:

1. You and your partners form a separate entity, typically a multi-member LLC, to purchase the medical office building.
2. This real estate LLC then executes a formal lease agreement with your medical practice (the S-Corp or partnership).
3. The medical practice pays fair market rent to the real estate LLC.

This creates two distinct tax benefits. For the medical practice, the rent it pays is a fully deductible business expense, directly reducing the practice’s taxable income. For the real estate LLC, it now has rental income, but this is where the strategy deepens. The LLC can claim massive depreciation deductions on the building, which often creates a large “paper loss” for tax purposes, even if the property is cash-flow positive.

This is where the strategy becomes transformative, especially if you’re married. If your spouse can qualify for Real Estate Professional Status (REPS) under IRS §469(c)(7), those paper losses from the real estate LLC are no longer considered “passive.” They become active losses that can be used to directly offset your high W-2 and K-1 income from practicing medicine.

To qualify for REPS, your spouse must:

• Spend more than 750 hours during the year on real estate activities (as an owner, developer, agent, etc.).
• Spend more time on real estate than any other trade or business (the “>50% test”).
• Maintain a contemporaneous log of their hours to prove it in an audit.

When combined with a cost segregation study (more on that below), this strategy can generate hundreds of thousands of dollars in non-passive losses, potentially zeroing out a significant portion of your clinical income tax liability. You can model out potential returns using a real estate investing calculator to see how depreciation impacts your net income.

The Ultimate Shelter: Stacking a Cash Balance Plan

For high-earning ophthalmologists, a standard 401(k) is necessary but insufficient. Once you’re a partner, the most potent pre-tax savings vehicle available is a cash balance plan, which is a type of defined benefit pension plan. You can “stack” this on top of your practice’s 401(k) and profit-sharing plan.

While a 401(k) has defined *contributions* (e.g., $23,000 for employee deferral + profit sharing in 2024), a cash balance plan has a defined *benefit* at retirement. An actuary calculates the annual contribution needed to fund that future benefit. For physicians in their peak earning years (40s and 50s), this calculation allows for massive tax-deductible contributions—often between $100,000 and $300,000 per year, per partner, depending on age and income.

Here’s a concrete example:
A 50-year-old ophthalmology partner earning $800,000 could potentially contribute:

• $23,000 to their 401(k) as an employee deferral.
• ~ $46,000 in profit sharing from the practice.
• ~ $200,000+ into a personal cash balance plan account.

That’s nearly $270,000 in a single year, all tax-deductible. At a 40% marginal federal and state tax rate, that contribution generates an immediate tax savings of over $100,000. It’s an unparalleled tool for accelerating retirement savings while drastically cutting your current tax bill. The funds grow tax-deferred until retirement, just like a 401(k).

Planning Trap to Avoid: These plans are complex to set up and administer. They require an actuary and a Third-Party Administrator (TPA). The trap is waiting too long to explore this. The older you are, the larger your potential contribution, but you lose years of compounding. The moment you make partner is the moment to have this conversation. It’s a key strategy that a physician-focused CPA will model out for your practice.

The 199A QBI Deduction: A Warning for Surgeons

When the Tax Cuts and Jobs Act of 2017 introduced the Section 199A Qualified Business Income (QBI) deduction, it was heralded as a major tax break for pass-through business owners. It allows for a deduction of up to 20% of qualified business income. However, for physicians, there’s a significant catch.

Medicine is classified as a “Specified Service Trade or Business” (SSTB). This means the QBI deduction is subject to a strict income phase-out. For 2026, those thresholds are projected to be around $394,000 for single filers and $787,000 for those married filing jointly. Most ophthalmology partners, with combined income from their practice and ASC, will sail past these limits.

The bottom line: You should not count on receiving the QBI deduction.

This isn’t a strategy to pursue but a reality to plan for. Many physicians get frustrated when they hear about the 20% pass-through deduction, only to find out from their accountant that they are completely phased out of the benefit. It feels like you’re being penalized for your high income.

The Strategic Pivot: Instead of trying to contort your finances to somehow qualify, accept that the QBI deduction is off the table and focus your energy on the more powerful strategies that are not income-limited:

• Maximizing retirement contributions via a cash balance plan.
• Generating non-passive losses through actively managed real estate (the REPS strategy).
• Using cost segregation to accelerate depreciation.
• Structuring equipment purchases through a separate leasing entity.

The 199A phase-out for SSTBs is a clear signal from the tax code: high-income service professionals need to look beyond simple deductions and engage in active structural planning.

Supercharging Depreciation with Cost Segregation Studies

This strategy ties directly into owning your medical real estate. When you buy a commercial building, the standard depreciation schedule is 39 years. This means you get to deduct 1/39th of the building’s value each year. A cost segregation study dramatically accelerates this process.

A “cost seg” study is a detailed engineering analysis that identifies and reclassifies components of your building from long-life real property (39-year) into short-life personal property (5, 7, or 15-year). Think of things like specialized electrical wiring for surgical equipment, custom cabinetry, carpeting, specific plumbing, and exterior site improvements like parking lots and landscaping.

Here’s how it works in practice:

1. Your real estate LLC purchases a medical office building for $4 million (excluding land value).
2. Without a study, your annual depreciation deduction is roughly $102,564 ($4M / 39 years).
3. You commission a cost segregation study. The engineers determine that 25% of the building’s cost ($1 million) can be reclassified into 5-year and 15-year property.

The impact is immediate and massive. That $1 million in reclassified assets can now be depreciated much faster. Furthermore, under current tax law (though subject to change), these shorter-lived assets may be eligible for “bonus depreciation,” allowing you to deduct a large percentage—sometimes up to 80% or 100% depending on the year’s rules—of their value in the very first year.

This can generate a paper loss of hundreds of thousands of dollars in Year 1. If your spouse has REPS, this loss flows directly to your personal tax return, offsetting your surgical income. It’s like getting a massive, interest-free loan from the government by deferring your tax liability far into the future.

Planning Trap to Avoid: Not doing it. Many physicians assume their regular accountant will handle this, but a true cost segregation study requires specialized engineering expertise. It’s a separate engagement that you must proactively seek out. The cost of the study (typically a few thousand dollars) is minuscule compared to the first-year tax savings it can unlock.

Navigating the financial life of an ophthalmology partner is about more than clinical excellence; it’s about building an intentional financial structure. By layering these strategies—optimizing K-1s, owning your real estate, maximizing retirement plans, and using tools like cost segregation—you can protect your income and build lasting wealth. These aren’t loopholes; they are the intended function of a complex tax code, available to those who take the time to learn the rules.

Reviewed by Pouyan Golshani, MD, Interventional Radiologist — May 21, 2026