Tax planning for hematologists with practice equity

If you’re a heme partner with K-1 income, the tax structure is different. Here’s the optimization for partnership-track hematologists. As a partner, you’ve traded the simplicity of a W-2 for the complexities—and opportunities—of pass-through income. This isn’t just about a bigger paycheck; it’s about a fundamentally different set of rules that govern how you keep what you earn. Most physicians in large health systems never see this side of the financial world. But for you, understanding concepts like the Qualified Business Income (QBI) deduction, Schedule C expenses, and accelerated depreciation isn’t optional—it’s the key to building significant wealth. These strategies aren’t loopholes; they are the intended use of the tax code for business owners, which you now are. We’ll break down the five most impactful strategies that apply directly to your situation. For a broader overview of resources, you can also explore the hematology free tools hub for other operational and financial guides.

The 199A QBI Deduction: Your Last, Best Chance as a Physician Partner

Most high-income physicians hear about the Section 199A Qualified Business Income (QBI) deduction and immediately dismiss it. They’re told, correctly, that medicine is a “Specified Service Trade or Business” (SSTB), and the 20% pass-through deduction is phased out for SSTBs at higher incomes. But here’s the critical detail for many hematology partners: you might actually qualify where others don’t.

For 2026, the income phase-out threshold is projected to be around $394,000 for single filers and $787,000 for those married filing jointly. While a neurosurgeon or orthopedic surgeon in private practice will almost certainly exceed this, a hematologist in a partnership model often lands right in this zone. Falling just over the threshold means you lose a deduction potentially worth tens of thousands of dollars. Getting just under it means you keep it.

Here’s the playbook for managing your Adjusted Gross Income (AGI) to stay under that cliff:

• Maximize Pre-Tax Retirement Contributions: This is your most powerful lever. If your practice offers a 401(k), you should be maxing out your employee deferrals. As a partner, you also benefit from the employer/profit-sharing component, which can significantly reduce your taxable K-1 distribution.
• Leverage the Health Savings Account (HSA): If you have a high-deductible health plan, the family HSA contribution limit for 2026 is $8,750. This is an above-the-line deduction, meaning it directly reduces your AGI.
• Charitable Bunching: If you make regular charitable donations, instead of donating annually, “bunch” several years’ worth of donations into a single year and contribute them to a Donor-Advised Fund (DAF). This can create a large itemized deduction in one year, helping to pull your AGI down when you’re near the QBI threshold.

Let’s run a quick example. Say your joint K-1 income is $810,000. You’re over the $787,000 threshold and the QBI deduction is zero. But wait. You and your spouse each max out your 401(k)s ($24,000 each for 2026, let’s say), and the practice adds a profit-sharing contribution. Let’s assume your total retirement contributions are $70,000. You also contribute $8,750 to your family HSA. Your AGI is now $810,000 – $70,000 – $8,750 = $731,250. You are now fully under the phase-out threshold. On, say, $700,000 of qualified business income, a 20% deduction is $140,000. At a 35% marginal tax rate, that’s $49,000 in direct tax savings. This isn’t a minor tweak; it’s a foundational planning strategy for any partner in this income range.

Unlocking Deductions with 1099 Side Income

The Tax Cuts and Jobs Act of 2018 (TCJA) was a blow to W-2 employee physicians. It eliminated the miscellaneous itemized deduction for unreimbursed employee expenses. That meant you could no longer deduct costs for your CME, medical licenses, DEA registration, board exams, journals, or home office. For a partner with K-1 income, many of these are legitimate practice expenses. But what about expenses that fall into a grey area or are purely personal professional development?

The solution is to generate even a small amount of 1099 income. This creates a sole proprietorship (filed on a Schedule C of your tax return) and transforms those non-deductible personal costs into legitimate business expenses. A side gig in telemedicine, medical consulting, expert witness work, or a medical directorship for a local facility can serve this purpose perfectly.

Here’s how it works:

1. Establish the Side Business: You perform consulting work and receive a 1099-NEC for $10,000.
2. Allocate Expenses: You can now deduct the “ordinary and necessary” expenses for that business. A portion of your cell phone and internet bill, your computer, your medical license and DEA fees (if required for the work), and your CME costs can all be allocated to this Schedule C business.
3. The Solo 401(k): This is the masterstroke. Having self-employment income, no matter how small, allows you to open a Solo 401(k). This is a supercharged retirement account. As the “employee” of your side gig, you can contribute up to 100% of your compensation (up to the annual limit, ~$24,000 in 2026). As the “employer,” you can also contribute up to 20% of your net self-employment income. The total combined contributions can reach over $69,000 (for 2026), all pre-tax.

The trap here is commingling funds and poor record-keeping. You must treat the side gig as a real business. Open a separate bank account for all 1099 income and expenses. Use accounting software to track everything meticulously. The goal isn’t just to generate deductions, but to build a defensible, audit-proof record that justifies them. The net income from your side gig, after expenses, can be funneled directly into your Solo 401(k), creating an incredibly efficient wealth-building engine outside of your main practice.

The HSA Triple-Stack: Your Best Retirement Shelter

The Health Savings Account (HSA) is the most misunderstood and underutilized account available to physicians. Most see it as a simple checking account for medical bills. This is a massive strategic error. An HSA is the only account with a triple tax advantage:

1. Contributions are tax-deductible (pre-tax).
2. The money grows tax-free inside the account.
3. Withdrawals are tax-free for qualified medical expenses.

It’s a 401(k) and a Roth IRA combined, but better. The key is to treat it as a retirement account, not a spending account. The strategy is simple but requires discipline:

• Max It Out Every Year: For 2026, the family contribution limit is $8,750. Make sure you contribute the absolute maximum allowed. Do not leave this money on the table.
• Invest, Don’t Spend: Once the money is in the HSA, do not use it to pay for current medical expenses. Pay for those out-of-pocket. Instead, invest the HSA funds in low-cost, broad-market index funds, just like you would in your 401(k) or IRA. Let it grow and compound tax-free for decades.
• Save All Medical Receipts: This is the crucial step. Every time you pay for a qualified medical expense out-of-pocket (copays, prescriptions, dental, vision, etc.), save the receipt. Scan it and save it to a cloud folder labeled “HSA Receipts.” There is no time limit on when you can reimburse yourself.

Imagine you do this for 25 years. You’ve contributed roughly $220,000, but with market growth, the account is now worth $750,000. You’ve also accumulated $150,000 in medical receipts over those 25 years. In retirement, you can withdraw that $150,000 from your HSA completely tax-free, whenever you want, by “reimbursing” yourself for those old expenses. The remaining $600,000 can be used for future medical costs in retirement (like long-term care premiums) tax-free. After age 65, you can also withdraw funds for non-medical reasons, and they are simply taxed as ordinary income, just like a traditional 401(k). There is no downside.

Rescuing W-2 Deductions with a Schedule C

This strategy is a specific application of the 1099 side income concept, but it’s so important it deserves its own section. Many physician partners still have some W-2 income, either from the partnership structure itself (reasonable compensation) or from administrative roles at a hospital. As we covered, TCJA eliminated your ability to deduct unreimbursed professional expenses against that W-2 income.

Let’s get concrete. Suppose in a year you spend:

• $3,000 on a subspecialty conference (CME)
• $550 on your state medical license
• $885 on your DEA license
• $1,200 on professional society dues and journal subscriptions
• $2,000 on a new laptop and monitor for your home office

Total: $7,635. On a pure W-2 salary, that’s $7,635 you paid with post-tax dollars. At a 35% marginal rate, you had to earn nearly $11,750 to have that $7,635 left over to spend.

Now, let’s say you do a few telemedicine shifts and earn $5,000 in 1099 income. You now have a Schedule C. You can argue that all those expenses are ordinary and necessary to maintain your professional standing, which is required for your telemedicine work. You can now deduct the full $7,635 against your business income. Your Schedule C would show a net loss: $5,000 (income) – $7,635 (expenses) = -$2,635. This loss can then be used to offset other ordinary income, like your K-1 distributions or W-2 salary. You just turned $7,635 in non-deductible expenses into a tax deduction, saving yourself $2,672 in taxes (35% of $7,635). You effectively got a 35% discount on all your professional expenses, paid for by the IRS.

The trap to avoid is being too aggressive. The expenses must be plausibly related to the 1099 work. Deducting scrubs for your telemedicine gig is a stretch. Deducting CME on hematologic malignancies is perfectly reasonable. The key is a clear, logical connection between the expense and the business activity. When done correctly, this is one of the most effective ways for a physician to reclaim thousands in lost deductions each year.

Supercharging Depreciation with Cost Segregation Studies

If your partnership owns its own clinic or building, or if you personally invest in rental real estate, this is one of the most powerful tax deferral strategies available. Normally, a commercial property is depreciated over 39 years and a residential property over 27.5 years. This results in a slow, steady, and relatively small annual depreciation deduction.

A cost segregation study is an engineering-based analysis that dissects a property’s components and reclassifies them into shorter depreciation schedules. Instead of treating the entire building as one 39-year asset, the study identifies components that can be depreciated over 5, 7, or 15 years. This includes things like carpeting, specialty electrical wiring, cabinetry, landscaping, and parking lot paving.

The result is a massive acceleration of depreciation deductions into the early years of owning the property. It’s common for a cost segregation study to shift 20-30% of a building’s cost basis into these shorter-lived categories. When combined with “bonus depreciation” (which currently allows for a large percentage of the cost of these shorter-lived assets to be deducted in Year 1), the result can be a huge paper loss that can offset your active K-1 income.

Let’s say your partnership buys a $3 million clinic. A cost segregation study might identify $750,000 (25%) of the property as 5- and 15-year property. With 80% bonus depreciation (the 2024 rate), you could potentially take a first-year depreciation deduction of $600,000 on that portion alone, plus the regular depreciation on the rest of the building. This creates a significant paper loss that flows through to the partners’ K-1s, directly reducing their taxable income.

For personal real estate investments, this can be combined with Real Estate Professional Status (REPS) for a non-physician spouse. If your spouse spends more than 750 hours a year and more than 50% of their working time on real estate activities, your rental losses are no longer “passive.” This means they can be used to offset your active physician income. A cost segregation study on a rental portfolio can generate six-figure paper losses that, with REPS, can wipe out a huge chunk of your tax liability. You can model out different scenarios using a real estate investing calculator to see the potential impact. This level of planning requires sophisticated advice, making it a key area to work with a physician-focused CPA who understands these specific strategies.

Transitioning to a partner role fundamentally changes your financial landscape. The strategies that served you as a W-2 employee are no longer sufficient. By embracing your role as a business owner and proactively using tools like the 199A deduction, Schedule C planning, and advanced real estate strategies, you can significantly reduce your tax burden and accelerate your path to financial independence. These concepts can seem complex, which is why tools like the GigHz Physician Finance Hub are designed to help you identify which strategies apply to your specific income, state, and practice structure. Paired with the guidance of a CPA who specializes in physician partnerships, you can build a tax plan that works as hard as you do.

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