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S-Corp vs. LLC for Dental Practices: A Practical Guide

You trained to fix smiles, not to decode tax forms.

Running a practice brings patient charts, staffing headaches, and a steady parade of regulatory forms. One choice that quietly affects what you keep each year is your entity structure. Pick wrong—or wait too long—and you can pay more in taxes than necessary. This guide walks through the practical differences between an LLC and electing S-Corp status, in plain language, with a short real-world scenario that dentists will recognize.

LLC vs. S-Corp: the quick comparison

Both structures can protect personal assets and provide flexibility. The main differences for dentists are how income is taxed, how payroll works, and the level of administrative work required.

  • LLC (default tax treatment): Net earnings flow to owners and are typically subject to self-employment tax (Social Security and Medicare) on essentially all earned income.
  • S-Corp (tax election for eligible entities): Net profit can be split into a reasonable salary (subject to payroll taxes) and distributions (not subject to self-employment tax), which can lower overall payroll tax liability.
  • Payroll and compliance: S-Corps require consistent payroll, payroll tax filings, and careful documentation of “reasonable compensation.” LLCs (taxed as sole proprietor/partnership) are simpler but can cost more in taxes at higher income levels.
Payroll

Money matters: tax implications made simple

Consider self-employment tax (roughly 15.3% for Social Security and Medicare on qualifying earnings). With an LLC taxed as a sole proprietor or partnership, that tax typically applies to most practice income. An S-Corp lets owners pay themselves a reasonable salary (payroll taxes apply) and take remaining profit as distributions that avoid self-employment tax. The net effect: for practices with steady profits, that split can produce meaningful savings. The tradeoff is increased bookkeeping, payroll costs, and the need to document compensation choices with defensible logic.

A short story: two dentists, same revenue, different outcomes

Dr. Nguyen and Dr. Rivera each operate a solo practice and clear $250,000 in net practice income. Dr. Nguyen keeps the default LLC treatment: most income is subject to self-employment tax. Dr. Rivera elects S-Corp status, runs payroll, pays herself a $140,000 salary and takes $110,000 as distributions. Because payroll taxes apply only to the salary portion, Dr. Rivera’s payroll-tax burden is noticeably lower, boosting take-home cash. Both pay federal and state income tax, but the S-Corp structure improved Dr. Rivera’s cash flow after payroll taxes—enough to invest in equipment and hire an associate earlier.

When to consider switching to S-Corp

  • You have consistent, predictable net profits (often $80k–$100k+), and payroll-tax savings justify the added administrative work.
  • You’re ready to implement regular payroll with appropriate payroll tax withholdings and filings.
  • You want to optimize take-home pay and retirement contributions while keeping documentation tidy for potential audits.

Practical next steps for your practice

Run a current-year projection: compare net income taxed under LLC default treatment versus an S-Corp split with a defensible salary. Factor payroll-service fees, state payroll taxes, and any professional-employment rules in your state. If you’re near a tipping point, the sooner you model the numbers, the sooner you can act—S elections and payroll systems take time to implement effectively.

Ready to see what structure saves you the most?

We’ll run the scenario using your practice numbers, show a clear comparison, and recommend the solution that fits your growth plan and compliance comfort level. Schedule a consultation with Nuttall & Patel LLP to get a personalized analysis and next steps tailored to dentists in our community.

If you’d like, bring last year’s profit-and-loss and a current payroll snapshot and we’ll build a side‑by‑side projection during the consult—no jargon, just clear choices.

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