Retirement stacking for geriatricians

Lower compensation makes retirement vehicle stacking matter MORE. Here’s the playbook.

As geriatricians, we’re drawn to the intellectual complexity and deep human connection of our specialty. We manage intricate polypharmacy, navigate delicate family dynamics, and provide compassionate care to a vulnerable population. What we are not known for is topping the physician compensation charts. And that’s a critical reality to confront. When your peak earning years produce less raw income than, say, a procedural subspecialist, every single dollar of tax drag and every missed opportunity for tax-advantaged growth has an outsized impact on your retirement timeline. The margin for error is smaller.

This isn’t about feeling discouraged; it’s about being strategic. The good news is that the US tax code contains specific, powerful levers that are often *more* accessible to physicians with moderate incomes. While your colleagues in higher-paid specialties might phase out of certain deductions and credits, you are often perfectly positioned to take advantage of them. This is the core of retirement stacking: layering multiple tax-advantaged accounts and strategies on top of each other to build wealth with an efficiency that high-W-2 earners can’t always match. This guide is your playbook, full of actionable strategies we cover in depth on the geriatrics hub.

Preserving the 20% QBI Deduction: Your AGI Is the Key

Most physicians hear about the §199A Qualified Business Income (QBI) deduction and assume it’s only for practice owners. That’s a mistake. If you have any 1099 income—from telemedicine, consulting, a medical directorship, or even paid speaking—you have business income that could qualify for a 20% tax deduction. For a physician, this is one of the most powerful deductions available, but it comes with a major catch: the phase-out.

Medicine is classified as a “Specified Service Trade or Business” (SSTB). For SSTBs, the QBI deduction begins to phase out and then disappears entirely once your taxable income exceeds certain thresholds. For 2026, those thresholds are projected to be around $394,000 for single filers and $787,000 for those married filing jointly. Many geriatricians, especially those early or mid-career, fall comfortably under this limit. The trap is letting a modest increase in income, or a spouse’s income, push you over the line, causing the entire 20% deduction on your side-gig income to vanish.

The Playbook: Proactive AGI Management

The key is to manage your Adjusted Gross Income (AGI) to stay below the phase-out threshold. Your W-2 salary, your spouse’s income, and your 1099 income all combine to determine your eligibility. Here’s how to actively lower your AGI:

• Max Out Pre-Tax Retirement Accounts: This is non-negotiable. Your W-2 401(k) or 403(b) contribution ($24,500 for 2026, plus a catch-up if you’re over 50) directly reduces your taxable income. If you have a Solo 401(k) for your 1099 work, the employer portion of the contribution also lowers your AGI.
• Max Out Your Health Savings Account (HSA): The family contribution limit for 2026 is $8,750. This is an above-the-line deduction, meaning it lowers your AGI regardless of whether you itemize.
• Charitable Bunching: If you are charitably inclined, instead of donating a set amount each year, “bunch” several years’ worth of donations into a single year using a Donor-Advised Fund (DAF). A $30,000 contribution to a DAF in a single year can dramatically lower your AGI, potentially keeping you under the QBI threshold and allowing you to itemize that year.

By strategically combining these moves, you can often reduce your AGI by $50,000 or more, preserving a QBI deduction that could be worth thousands of dollars. It’s a clear case where careful planning directly translates to tax savings.

The 1099 Side Hustle: Resurrecting Lost Deductions and Unlocking a Supercharged 401(k)

Most of us felt the sting of the 2018 Tax Cuts and Jobs Act (TCJA). Overnight, W-2 employees lost the ability to deduct unreimbursed professional expenses. All those costs we bear to maintain our careers—CME courses, state license renewals, DEA fees, board exam fees, scrubs, stethoscopes, even a portion of our home office and cell phone bill—became non-deductible. For a geriatrician, these can easily add up to $5,000-$10,000 per year of after-tax spending.

The fix is surprisingly simple: generate even a small amount of 1099 income. The moment you have self-employment income, you can file a Schedule C (“Profit or Loss from Business”). This form re-opens the door to deducting all “ordinary and necessary” business expenses against that 1099 income.

The Playbook: The Deduction “Rescue”

Let’s say you earn $8,000 in 2026 from doing telehealth shifts on weekends. During that same year, you spend $4,000 on a geriatrics board review course, $500 on your state license, $888 on your DEA registration, and $300 on professional society dues. As a pure W-2 employee, you eat those costs. But with the Schedule C, you can deduct the full $5,688 of expenses against your $8,000 of income, meaning you only pay tax on $2,312 of your side-gig earnings. You’ve effectively “rescued” thousands of dollars in deductions that were otherwise lost.

But the real power move is what you do with that net income. Your Schedule C makes you eligible to open a Solo 401(k). This account allows you to contribute as both the “employee” and the “employer.”

• Employee Contribution: You can contribute up to 100% of your self-employment compensation, not to exceed the annual limit ($24,500 in 2026). This limit is shared with your W-2 401(k)/403(b), so if you max out your hospital plan, you can’t make an employee contribution here.
• Employer Contribution: This is the magic. You can *also* contribute up to 20% of your net self-employment income as the “employer.” This is separate from, and in addition to, your W-2 plan contributions.

This structure allows you to shelter a significant amount of extra income, far beyond what your W-2 plan allows. It turns a simple side hustle into a powerful retirement acceleration vehicle.

The HSA Triple-Stack: Your Ultimate Retirement Shelter

If you are on a high-deductible health plan (HDHP), the Health Savings Account (HSA) is the single most powerful retirement account available to you—even better than a Roth IRA or 401(k). It boasts a unique triple tax advantage:

1. Tax-Deductible Contributions: The money you put in is tax-deductible in the year of contribution, lowering your current AGI. For 2026, the family limit is $8,750.
2. Tax-Free Growth: The money can be invested in mutual funds and ETFs, and it grows completely tax-free.
3. Tax-Free Withdrawals: You can withdraw the money tax-free at any time, for any qualified medical expense.

Most people use their HSA like a checking account, paying for current medical bills. This is a massive missed opportunity. The savviest physicians use it as a stealth retirement account.

The Playbook: Max, Invest, and Defer

The strategy is simple but requires discipline. First, use a dedicated budgeting calculator to ensure you can cash-flow your current medical expenses out-of-pocket, leaving your HSA untouched.

• Step 1: Max It Out. Contribute the maximum family amount ($8,750 for 2026) every single year without fail.
• Step 2: Invest It Aggressively. As soon as the funds are in the account, invest them in a low-cost, broad-market index fund (like a total stock market fund). Do not let the money sit in cash.
• Step 3: Pay Medical Bills Out-of-Pocket. When you or your family incur medical, dental, or vision expenses, pay for them with a credit card or from your checking account.
• Step 4: Save Every Receipt. Create a digital folder (e.g., in Google Drive or Dropbox) and scan every single receipt for a qualified medical expense. Prescriptions, co-pays, dental fillings, new glasses—everything. Save them indefinitely.

Decades from now, in retirement, you will have a massive, tax-free investment account. You can then “reimburse” yourself for all those saved receipts from years or even decades prior. If you’ve accumulated $100,000 in receipts over 20 years, you can pull $100,000 out of your HSA completely tax-free to spend on anything you want—travel, a new car, whatever. It becomes a tax-free emergency fund or a source of supplemental income. After age 65, any withdrawals not matched to a receipt are simply taxed as ordinary income, just like a traditional 401(k), so there’s no penalty or downside.

The New Math of Itemizing: How the $40,400 SALT Cap Changes the Game

Another major change from the TCJA was the $10,000 cap on State and Local Tax (SALT) deductions. For physicians in high-tax states like California, New York, New Jersey, or Illinois, this was brutal. Your property taxes and state income taxes could easily exceed $30,000, but you could only deduct $10,000. This, combined with a higher standard deduction, pushed millions of physicians into taking the standard deduction for the first time, losing out on deductions for mortgage interest and charitable giving.

However, recent legislation (the OBBBA of 2025) has temporarily quadrupled the SALT cap to $40,400 for 2026. This is a game-changer for many employed geriatricians and makes itemizing your deductions a viable strategy once again.

The Playbook: Re-Run the Numbers

The standard deduction for 2026 is projected to be around $31,000 for married couples. Your goal is to see if your itemized deductions can exceed this number. Let’s run a plausible scenario for a geriatrician in a high-tax state:

• State and Local Taxes (SALT): You pay $18,000 in state income tax and $12,000 in property taxes. Total = $30,000. Under the old cap, you could only deduct $10,000. Now, you can deduct the full $30,000.
• Mortgage Interest: You pay $12,000 in mortgage interest on your primary residence.
• Charitable Contributions: You donate $4,000 to charity during the year.

Total Itemized Deductions: $30,000 (SALT) + $12,000 (Mortgage) + $4,000 (Charity) = $46,000.

In this scenario, your $46,000 in itemized deductions is significantly higher than the ~$31,000 standard deduction. By itemizing, you reduce your taxable income by an additional $15,000, saving you thousands in federal income tax. Before this change, your total would have been capped at $10k (SALT) + $12k (Mortgage) + $4k (Charity) = $26,000, forcing you to take the higher standard deduction and leaving money on the table. It’s critical to re-evaluate this calculation with your CPA for 2026.

Putting It All Together with a Personalized System

We’ve covered several distinct strategies: managing AGI for QBI, using a 1099 to rescue deductions and fund a Solo 401(k), triple-stacking an HSA, and leveraging the new SALT cap. Each one is powerful, but their real value comes from stacking them together. The challenge is that the ideal combination depends entirely on your specific numbers: your income, your spouse’s income, your state of residence, your side-hustle earnings, and your savings goals.

This is where most physicians get stuck. The complexity feels overwhelming, and it’s hard to know which levers to pull and in what order. Most of us figured this out the hard way—by losing a year to a planning mistake or overpaying in taxes before realizing a deduction was available. A systematic approach is necessary to model how these strategies interact.

This is precisely why tools that can map these complex rules to your personal financial situation are so valuable. The physician finance hub is designed for this purpose. It helps you input your financial data and surfaces these kinds of personalized, high-impact strategies—from QBI optimization to account stacking—that are often missed by generic financial advice. It helps you identify the questions to ask and the strategies to bring to your CPA, ensuring you’re not just earning a living, but building a secure and efficient financial future.

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