EP lab and structural heart economics: where the equity actually flows

May 6, 2026 · Pouyan Golshani, MD, Interventional Radiologist

EP and structural heart procedures have unique reimbursement and ownership dynamics. Here’s how to evaluate a partnership offer.

But once you’ve navigated the complexities of a hospital joint venture, an ambulatory surgery center (ASC), or an office-based lab (OBL), the real work begins: keeping the income you generate. High-value procedures like TAVR, Watchman, and complex ablations can produce significant revenue, but that top-line number is easily eroded by taxes and inefficient financial structures. The equity flow doesn’t stop at the practice’s bank account; it has to successfully navigate your personal balance sheet. This is where most of us, trained in medicine rather than finance, make preventable mistakes. We focus on the clinical side of value creation and neglect the financial side of value preservation.

This article breaks down the key financial strategies high-earning cardiologists must master. We’ll move beyond the deal sheet and into the tax code, because that’s where wealth is truly built or lost. For a broader look at the clinical and operational aspects of our field, you can explore the full cardiology hub for more resources.

The 199A Deduction: Protecting Your Practice Partnership Income

For physicians with ownership in a practice, ASC, or OBL, the Section 199A Qualified Business Income (QBI) deduction is one of the most significant tax breaks available, yet it’s also one of the most misunderstood. Enacted as part of the Tax Cuts and Jobs Act (TCJA), it allows owners of pass-through entities (like S-corps and LLCs) to deduct up to 20% of their qualified business income.

Here’s the catch: Medicine is classified as a “Specified Service Trade or Business” (SSTB). This means the 20% deduction is subject to a strict income phase-out. For 2026, that phase-out range begins at a taxable income of approximately $394,000 for single filers and $787,000 for those married filing jointly. Once your income exceeds the top of that range, the deduction for your medical practice income disappears entirely.

Most successful EPs and structural heart specialists will easily surpass these thresholds. Does that mean the deduction is useless? Not at all. It means you must be strategic about managing your Adjusted Gross Income (AGI).

Here’s how it works: The phase-out is based on your taxable income, not your gross income. You can actively lower your taxable income to stay within the phase-out range and preserve this valuable deduction. The primary levers include:

Maximizing Pre-Tax Retirement Contributions: This is the first and most powerful step. Contribute the maximum to your employee 401(k) or 403(b). If your practice offers a cash balance plan, funding it can shield an additional six figures from taxation, often making the difference between qualifying for QBI and not.
Health Savings Accounts (HSA): A family contribution to an HSA reduces your AGI by $8,750 (2026 limit). It’s not a massive number, but every dollar counts.
Charitable Bunching: Instead of donating annually, “bunch” several years’ worth of charitable contributions into a single year using a Donor-Advised Fund (DAF). A $50,000 contribution to a DAF can significantly lower your AGI in the year you make it.

The Trap to Avoid: The most common mistake is assuming that because your gross earnings are high, you automatically don’t qualify. Many physicians leave tens of thousands of dollars on the table by failing to run the numbers. Before you sign a partnership agreement for a new lab, understanding the revenue model is critical. Modeling pro forma distributions and seeing how they impact your personal AGI is a key piece of diligence. Using tools with real-world CenterIQ rate data can help you build a more accurate picture of potential practice income, which in turn allows you and your CPA to forecast your AGI and strategize how to preserve the 199A deduction.

Unlocking Deductions with 1099 Side Income

One of the most frustrating changes from the TCJA for W-2 employee physicians was the elimination of the miscellaneous itemized deduction for unreimbursed employee expenses. Before 2018, you could deduct costs for CME, medical licenses, DEA registration, board exams, scrubs, and professional society dues. Now, as a W-2 employee, you can’t deduct a single dollar of it.

Most of us just accepted this as a new cost of doing business. But there’s a powerful workaround: generating a small amount of 1099 independent contractor income. This income creates a sole proprietorship (reported on a Schedule C of your tax return), which acts as a vehicle to deduct all your legitimate professional expenses.

Here’s the how-to sequence:

Establish a 1099 Income Stream: This can be anything from medical expert witness work, consulting for a device company, medical directorships, or even a few telemedicine shifts per month. The amount doesn’t have to be huge; even $5,000-$10,000 a year is enough to make this strategy work.
Open a Separate Business Bank Account: Keep all 1099 income and related expenses completely separate from your personal finances. This is non-negotiable for a clean audit trail.
Deduct Your Professional Expenses: On your Schedule C, you will report your 1099 income. You then deduct your “ordinary and necessary” business expenses against that income. This now includes all those costs you lost as a W-2 employee: CME travel and registration, license and DEA fees, journal subscriptions, home office expenses, a portion of your cell phone and internet, etc.

The magic is that your deductions don’t have to be less than your 1099 income. If you have $8,000 in 1099 income but $12,000 in legitimate professional expenses, you create a $4,000 business loss. This loss then flows through to your personal return and reduces your overall taxable income from your primary W-2 job.

The Trap to Avoid: Don’t treat this as a hobby. The IRS requires you to have a profit motive. While you can have a loss for a couple of years, you need to operate like a real business. Keep meticulous records, have a business plan (even a simple one), and actively seek to grow your side income. The goal isn’t just to create a tax shelter but to build a legitimate side business that also happens to be incredibly tax-efficient.

The Solo 401(k): Supercharging Your Retirement Savings

Once you have 1099 income, you unlock the most powerful retirement savings tool available to any professional: the Solo 401(k), also known as an Individual 401(k). This is a game-changer for physicians looking to accelerate their path to financial independence.

A Solo 401(k) allows you to contribute as both the “employee” and the “employer” from your 1099 net income. This lets you put away significantly more than you could in a SEP IRA, especially at lower levels of side income.

Here’s how the contributions work for 2026:

Employee Contribution: You can contribute up to 100% of your 1099 compensation, up to a maximum of $24,000.
Employer Contribution: You can also contribute up to 20% of your net self-employment income (your 1099 income minus one-half of your self-employment taxes).

The total combined contributions cannot exceed $73,000 for 2026. For a physician with, say, $50,000 in medical directorship income, this provides a massive new bucket for pre-tax savings, far beyond what a W-2 job alone offers.

Furthermore, most Solo 401(k) plan documents can be written to allow for Roth contributions (on the employee side) and even after-tax contributions, which can be immediately converted to a Roth account (the “Mega Backdoor Roth IRA”). This gives you unparalleled flexibility to build tax-free investment buckets for retirement.

The Trap to Avoid: The “pro-rata rule” for backdoor Roth IRAs. Many physicians have existing pre-tax money in traditional or SEP IRAs from old, rolled-over 401(k)s. If you try to do a backdoor Roth IRA conversion while holding these pre-tax IRA assets, a portion of the conversion becomes taxable. The Solo 401(k) is the solution. Most Solo 401(k) plans allow you to roll existing IRA assets *into* the Solo 401(k). This “cleans out” your IRAs, leaving you with a zero balance and allowing you to perform clean, tax-free backdoor Roth IRA conversions every year.

The HSA Triple-Stack: Your Ultimate Stealth Retirement Account

The Health Savings Account (HSA) is the most tax-advantaged investment account in the entire US tax code, yet most physicians treat it like a simple checking account for medical bills. This is a massive missed opportunity. When used correctly, an HSA is a “triple-tax-advantaged” stealth retirement account.

Here’s what that means:

Tax-Deductible Contributions: The money you put in is tax-deductible, lowering your current-year AGI. For 2026, a family can contribute up to $8,750.
Tax-Free Growth: Unlike a 401(k) or IRA, the money inside the HSA grows completely tax-free when invested.
Tax-Free Withdrawals: You can withdraw the money tax-free at any time to pay for qualified medical expenses.

The key to unlocking its power is to never use it for current medical expenses. Pay for your family’s co-pays, prescriptions, and dental bills out-of-pocket with after-tax dollars.

Here’s the triple-stacking strategy:

Step 1: Max It Out. Contribute the maximum family amount ($8,750 for 2026) every single year without fail.
Step 2: Invest It. Immediately invest the entire balance in low-cost, broad-market index funds. Do not let it sit in cash. Over 20-30 years, this account can grow to hundreds of thousands of dollars.
Step 3: Save Receipts. Keep a digital folder (e.g., in Dropbox or Google Drive) of every single qualified medical expense you pay out-of-pocket. Every co-pay, every pair of glasses, every dental cleaning. Save them for decades.

In retirement, you have a massive, tax-free pool of money. You can then “reimburse” yourself from the HSA for all those saved receipts from the past 30 years, effectively turning the HSA into a tax-free checking account. After age 65, you can also withdraw money for non-medical reasons, and it will be taxed as ordinary income, just like a traditional 401(k). It offers ultimate flexibility.

The Trap to Avoid: Using the wrong HSA provider. Many employer-sponsored HSAs have terrible investment options and high fees. You are not stuck with your employer’s provider. You can (and should) perform a trustee-to-trustee transfer once a year to a top-tier HSA provider like Fidelity or Lively, which offer a full range of low-cost investment options.

Cost Segregation Studies: Supercharging Real Estate Depreciation

For physicians who invest in real estate—whether it’s the building your practice is in or residential rental properties—a cost segregation study is an advanced but incredibly powerful tax strategy. In simple terms, it’s an engineering-based study that accelerates depreciation deductions, creating large “paper losses” that can shelter other income.

Normally, a commercial property is depreciated over 39 years and a residential property over 27.5 years. This is a slow, straight-line process. A cost segregation study dissects the property into its components and reclassifies them into shorter depreciation schedules. For example:

Land Improvements (15-year property): Fencing, paving, landscaping.
Personal Property (5- or 7-year property): Carpeting, specialty electrical wiring, cabinetry, certain fixtures.

By reclassifying, say, 25% of a $1 million building’s cost basis from 39-year property to 5-year property, you can pull decades’ worth of deductions into the first few years of ownership. When combined with bonus depreciation (which currently allows for a large percentage of the cost of short-lived property to be deducted in year one), this can generate a massive paper loss in the first year you own the property.

Here’s a concrete example: You buy a $1.5 million medical office building. A cost segregation study identifies $450,000 (30%) of the assets as 5- and 15-year property. Using bonus depreciation, you might be able to deduct a huge portion of that $450,000 in the first year, in addition to the standard depreciation on the rest of the building. This can create a six-figure loss that can offset your other income.

The Trap to Avoid: The Passive Activity Loss (PAL) rules. For most physicians, real estate is considered a “passive” activity, and losses from it can only offset other passive income (like from another rental property). The losses cannot offset your active W-2 or 1099 physician income. The key to unlocking this is for your spouse (if they have a flexible career) to qualify for Real Estate Professional Status (REPS). This requires them to spend more than 750 hours per year and more than 50% of their total working time on real estate activities. If they qualify and you file jointly, your rental losses become non-passive and can directly offset your high physician income, creating enormous tax savings.

Understanding the flow of equity in an EP lab or structural heart program is only half the battle. The other half is building a robust personal financial structure to protect and grow that equity. These strategies—from managing your AGI for QBI to leveraging real estate and side businesses—are the tools that transform high income into lasting wealth. Evaluating new technologies or devices for your practice requires a similar level of diligence. If you’re assessing a new piece of medtech and need an unbiased, deep-dive analysis, you can request a diligence memo from independent physician experts.