Chiropractic Practice Owners: Is Your S-Corp Salary Still Reasonable for 2026? A Q4 Payroll Check

Start with one number you can find in five minutes

Pull up your year-to-date payroll report and find the W-2 salary you have paid yourself so far in 2026. Then count how many payroll runs are left before December 31. For chiropractic practice owners who run their practice as an S-corp, those two numbers shape more of the tax bill than most people expect.

Here is the bottom line. Your S-corp salary drives three things at once: how much payroll tax you pay, how much you can put away for retirement, and how well your return holds up if the IRS asks questions. Many owners pick a salary the year they form the S-corp and never look at it again. That is a set-and-forget salary. What you want is a reviewed salary, checked every fall while there are still payroll runs left to fix it.

What "reasonable" means to the IRS, in plain English

An S-corp lets you take money out two ways. W-2 salary carries payroll tax. Distributions of profit do not. That difference is why an S-corp can be valuable, and it is also why the IRS pays attention. IRS rules say an owner who works in the business must be paid reasonable compensation. That means roughly what the practice would have to pay someone else to do the same work.

For a chiropractor who owns the practice, that work usually has two halves. One is clinical: exams, adjustments, treatment plans and patient hours. The other is management: hiring, supervising staff, overseeing billing, signing the lease and keeping the books. A fair test asks what you would pay an associate chiropractor for the clinical hours and what you would pay a clinic manager for the rest. If the IRS decides your salary is too low, it can treat part of your distributions as wages and charge the back payroll tax, plus penalties and interest.

Then ask whether your job changed this year. Did you add patient hours? Hire an associate you now supervise? Open a second location? A salary that made sense in 2024 may not fit the role you are doing in 2026. Whatever comparison you use, such as salary surveys, local job postings for associate chiropractors, or a log of your weekly hours, save it in your year-end file. That documentation is what makes the number defensible, and it is something we help you put together.

What your salary sets in motion

Payroll tax comes first. Salary carries a combined 15.3% across the employer and employee halves. The Social Security part stops once wages pass the Social Security wage base, and the Medicare part continues on all wages. If you are under the wage base, an extra $10,000 of salary adds about $1,530 in combined payroll tax ($10,000 × 15.3%). Above the wage base, only the much smaller Medicare part applies. That is the cost side of raising your salary.

Retirement is the benefit side. Your employee deferral into the practice 401(k) comes out of your salary. For 2026 the employee deferral limit is $24,500. If you are 50 to 59, or 64 and older, you can add an $8,000 catch-up. If you are 60 to 63, the enhanced catch-up is $11,250. The practice's profit-sharing contribution is figured as a percentage of your W-2 salary, so cutting salary too far can shrink what the practice is allowed to put away for you. Employee and employer money together is capped at $72,000, or $80,000 with the age-50 catch-up and $83,250 with the ages 60 to 63 catch-up. Only the first $360,000 of compensation counts toward the calculation.

Pacing matters too. Say you have deferred $16,000 through September and have six semi-monthly payroll runs left. To reach $24,500 you would need about $1,417 per run ($8,500 ÷ 6). If your remaining paychecks are too small to cover that, the salary itself may be what is holding your retirement savings back.

The deduction that pulls the other way

There is one more piece. The qualified business income deduction is a deduction for owners of pass-through businesses like S-corps, based on the business's profit. The salary you pay yourself does not count as qualified business income. So a higher salary can mean a smaller deduction, which pulls in the opposite direction from your retirement contributions.

IRS rules treat chiropractic as a health practice, and that puts it in a category where this deduction phases out for higher earners. For 2026 the phase-out starts at taxable income of $201,750 for single filers and $403,500 for married couples filing jointly. It disappears completely at $276,750 and $553,500. Within that range, the wages the practice pays also affect how much of the deduction you keep. This is why we look at payroll tax, retirement and this deduction together rather than tuning one and ignoring the others.

Your fourth-quarter checklist, and who handles each step

Before the last payroll runs, work through five items. Write down your year-to-date salary and what the remaining runs will add. Compare that total to what you would pay another doctor and a manager to cover your clinical and management work. Note any change in your role this year. Check whether you are on pace for your 401(k) deferral limit. And confirm that your payroll provider can process a December adjustment, and by what date.

Here is how the work splits. You provide the payroll report, your hours and any changes in your role. Our team runs the numbers across all three moving parts, documents the comparison for your file and coordinates any adjustment with your payroll provider. Your payroll provider processes the final run. Write down who owns each change and which payroll date it needs to hit, so nothing slips into January.

Your salary is a decision with three moving parts: payroll tax, retirement contributions and audit risk. It is worth checking while there are still payroll runs left to adjust. This article is general education, not individual tax advice. The right number for your practice depends on your own facts, and it is worth working through with a professional.

Key takeaways

• Reasonable compensation means roughly what the practice would pay someone else to do your clinical and management work.
• An extra $10,000 of salary adds about $1,530 in combined payroll tax when you are under the Social Security wage base.
• Your 401(k) deferral and the practice's profit-sharing contribution both depend on W-2 salary, so cutting it too far can limit retirement savings.
• Salary also reduces the qualified business income deduction, which phases out for health practices between $201,750 and $276,750 (single) or $403,500 and $553,500 (married filing jointly).
• Save the comparison you used and confirm your payroll provider's December cutoff while there is still time to adjust.

If you want a second set of eyes on your 2026 salary before the last payroll runs, our team can review the numbers, document your comparison and coordinate any December adjustment with your payroll provider. Book a planning conversation with Eiduk Tax & Wealth. Pay Less. Keep More. Build Wealth.