LLC vs. S-Corp for a Med Spa: Taxes, Payroll and the Professional-Entity Question

"Should my med spa be an LLC or an S-corp?" bundles two different questions, and in aesthetics a third sits underneath both. The first is legal: what entity you form, and whether state law requires the entity that delivers treatments to be a professional entity owned by licensed people. The second is tax: whether that entity asks the IRS to be taxed as an S corporation. The third decides the money: how much of the profit comes from your own hands as an injector, because that sets the salary the IRS expects you to take before the election saves anything.

This guide takes the three in the order they should be decided: the professional-entity question, the mechanics and cost of the election, and the numbers for an owner-injector at $900,000 of revenue.

An S-corp is a tax election: Form 2553, deadlines and late relief

By default the IRS disregards a single-member LLC and taxes the owner on Schedule C; a multi-member LLC is a partnership filing Form 1065. The S corporation is not a different entity but a classification the LLC or professional entity requests by filing Form 2553, after which the owners become W-2 employees and the remaining profit passes through on Schedule K-1.

The timing rules matter because practices tend to decide this mid-year. The election is effective for the current year if Form 2553 is filed no more than two months and 15 days after the start of the tax year (March 15 for a calendar-year practice), or at any time during the preceding year; a practice formed on June 1 has until mid-August to elect for its first short year. An LLC that files Form 2553 does not need Form 8832. Missed the window? Rev. Proc. 2013-30 grants relief for late elections filed within three years and 75 days of the intended effective date when the practice shows reasonable cause and acted diligently once it found the mistake.

Eligibility is where med spa ownership structures run into trouble. An S corporation may have no more than 100 shareholders, all individuals, estates or certain trusts (no partnerships, corporations or nonresident aliens), and only one class of stock. An investor who comes in through his own LLC, or a foreign relative who funds the opening, can disqualify the election. And "one class of stock" means distributions must track ownership exactly: if two owner-injectors want to be paid for unequal production, that difference runs through salary.

The professional-entity question comes first

In most states, the entity that delivers medical treatments is subject to rules about who may own it. AmSpa describes the corporate practice of medicine doctrine as one developed so that only licensed physicians, or entities wholly owned by them, practice medicine, and notes that most states regulate med spas as they do other medical practices. It cites California, where a physician must own at least 51% of the medical practice, and Texas, which by rule treats non-invasive aesthetic services as the practice of medicine (22 TAC 193.17). Where the doctrine applies, the arrangement AmSpa calls the gold standard is a physician-owned professional entity for clinical services plus a management services organization, owned by the non-physician, that supplies space, staff, marketing and administration for a fee under an agreement that does not interfere with medical judgment.

Florida sits at the other end. An AmSpa report from March 2023 described Florida as among the least restrictive states, one that does not restrict who may own a medical practice so long as the physician's judgment and the patient relationship are not interfered with; bills that year to tighten the rule died in committee. Florida does have a professional-entity statute, Chapter 621, under which a professional limited liability company is organized for the sole purpose of rendering one specific professional service, every member must be licensed in that service, and the name must carry "PLLC" or a permitted variant. Whether a nurse-owned Florida practice should be an LLC or a PLLC, and whether your state requires an MSO structure, are legal questions: confirm them with a health-care attorney licensed in your state before you pick a tax classification. Our guide to setting up a med spa entity in Florida covers the sequence.

The tax point is that the professional label changes nothing about the election. A PLLC is taxed exactly like an LLC: disregarded or partnership by default, S corporation if it files Form 2553. A professional association (Florida's professional corporation, with "P.A." in the name) is a corporation by default, so a P.A. that never filed Form 2553 is a C corporation paying 21% federal tax plus Florida's 5.5% corporate tax, with a second tax on dividends. In an MSO structure each entity makes its own election; the MSO and professional-entity accounting guide covers how the two sets of books and returns fit together.

Self-employment tax vs. payroll tax, and the injector's salary floor

The money in the decision is Social Security and Medicare tax. The owner of a disregarded LLC or a partner active in the practice pays self-employment tax of 15.3% on 92.35% of net profit: 12.4% for Social Security up to $184,500 of earnings in 2026 and 2.9% for Medicare with no cap, plus 0.9% Additional Medicare Tax above $200,000 of earnings ($250,000 on a joint return). Half of it is deductible.

An S corporation pays the same 15.3% only on the owner's W-2 salary, split 7.65% each side; the rest of the profit passes through on the K-1 free of Social Security, Medicare and Additional Medicare Tax. The saving is 15.3% (or 2.9% past the wage base) of the gap between profit and salary, and the IRS polices the salary for that reason. Its compensation guidance requires reasonable compensation before any non-wage distribution and asserts the authority to reclassify. In David E. Watson, P.C. (8th Cir. 2012), an accountant who paid himself $24,000 while taking distributions of $203,651 and $175,470 had his wages reset to $91,044, with back employment taxes, penalties and interest.

Here is the med spa problem. "Reasonable" means roughly what you would pay someone else to do your job, and an injector's job pays well. BLS median annual wages for May 2025 were $97,550 for registered nurses, $132,300 for nurse practitioners and $135,880 for physician assistants, before commission. An owner-injector who performs half the treatments in a practice netting $220,000 has a salary floor well above $120,000 and a gap of perhaps $80,000 to shelter; a non-clinical owner whose profit comes from employed injectors and financed equipment has a wider one. Our guide to reasonable salary for an owner-injector shows how to build and document the number.

What the election costs: payroll, Form 1120-S and a smaller QBI deduction

Payroll. The owner becomes an employee, so the practice withholds income tax and FICA from her pay, deposits on a monthly or semiweekly schedule, files Form 941 quarterly and Form 940 and her W-2 by January 31, and pays $42 of federal unemployment tax plus $189 of Florida reemployment tax at the 2.7% initial rate. Most practices already run payroll for their RNs and front desk through Gusto, ADP or QuickBooks Payroll, so the marginal cost is one more employee; late deposits draw penalties of 2% to 15%.

A second return. An S corporation files Form 1120-S by the 15th day of the third month after year-end, March 15, 2027 for the 2026 year, a month before your personal return, which cannot be filed until the K-1 exists. For returns due in 2027 the late-filing penalty is $260 per shareholder per month under Rev. Proc. 2025-32, even when no tax is owed.

A smaller QBI deduction. The qualified business income deduction is 20% of the profit that flows through on the K-1, never of W-2 wages, so every dollar moved into salary loses its 20% deduction, and the half-SE deduction is replaced by a smaller deduction for the employer's share of payroll tax. There is a wrinkle specific to aesthetics: Treasury regulations list medical services by nurses, physicians and similar professionals as a specified service field, so a med spa is likely a health business for QBI purposes, and above the 2026 thresholds of $201,750 (single) or $403,500 (joint) the deduction phases out over the next $75,000 or $150,000 of taxable income regardless of entity. For a high-income owner-injector the deduction is disappearing anyway, which shrinks one cost of the election. Our QBI guide for med spas covers the health-business question.

Florida context: a federal decision with a few state filings

Florida has no personal income tax, so pass-through profit from either structure is untaxed by the state. Florida's 5.5% corporate income tax, after a $50,000 exemption, applies to C corporations; under Rule 12C-1.022 an S corporation files a Florida corporate return only in a year it owes federal corporate-level tax, and a disregarded single-member LLC files none. The decision in Florida is almost entirely federal.

Practices with owners or locations outside Florida should run the state layer before electing: several states impose entity-level taxes or fees on S corporations. The Florida med spa accounting page lists what a Florida practice owes either way.

Worked example: an owner-injector at $900,000 of revenue

The figures are illustrative and rounded. A nurse practitioner owns a St. Petersburg, Florida practice as a single-member LLC: $900,000 of revenue from neurotoxin, filler, laser and a retail skincare line; one employed RN injector, one aesthetician, two front-desk staff and a physician medical director under a written agreement. She performs about 55% of the injectable treatments. After every expense except her own pay, the practice nets $220,000. She files jointly and the household has no other income. Her replacement-cost memo, built from the BLS nurse practitioner median and her management time, supports a salary of $140,000. Adding her to the existing payroll and preparing an 1120-S instead of a Schedule C costs about $2,500 a year.

The table runs the election at her current profit and three others, holding the $140,000 salary constant and using 2026 rates and the $32,200 joint standard deduction. The income-tax line captures the smaller QBI deduction and the swap of the half-SE deduction for the employer payroll tax deduction.

At $220,000 of profit the election is a wash for this owner: the QBI deduction she gives up on $140,000 of salary roughly cancels the payroll tax she saves on the remainder. At $150,000 it loses money outright, because salary plus employer payroll taxes exceed the profit. The numbers turn positive only when profit runs well past the salary floor, and even at $450,000 the net is about $4,000, because the disregarded owner's Social Security tax already stopped at $184,500.

Two things move the answer. If she were single, her taxable income above $300,000 would push the health-business QBI deduction into its phase-out under either structure, so the election would cost less in lost QBI and the net would be roughly $3,600 at $300,000 and $8,500 at $450,000. And if her employed injectors came to produce most of the revenue, her defensible salary would fall toward a manager's benchmark and the gap would widen. The decision is a projection, not a rule of thumb, and should be rerun when the second injector is hired. How the pay then flows is covered in how a med spa owner should pay themselves.

What usually goes wrong

The most expensive mistake is electing before the salary floor leaves room. An owner-injector netting $160,000 who elects, pays herself $60,000 and distributes $90,000 has not saved payroll tax; she has created a reclassification exposure and a second return. Next is the P.A. that never filed Form 2553 and has been filing, or not filing, as a C corporation. Then the ineligible shareholder: an investor's LLC or a nonresident family member terminates the election the day they are admitted.

The quieter errors: owners who elect and never run owner payroll, so the first 1120-S shows six figures of profit and zero on line 7, compensation of officers; two owners taking distributions in proportion to production rather than ownership; a March 15 deadline missed on a return that owed no tax; and the belief that the election changes liability. It does not. Your malpractice coverage, medical director agreement and corporate formalities do that; the S election only changes how the IRS taxes you. If the election is not for you yet, revisit it when the second producer arrives.

When to get help

The order of operations is the whole answer. Settle the entity and ownership structure with a health-care attorney licensed in your state. Then have the election modeled on your actual profit, a documented salary, your filing status and the next two or three years of growth, before anyone files Form 2553. If it pays, the practice runs owner payroll from the first month and files the 1120-S and your personal return together.

That projection, the salary memo, the election filing and the returns are part of our med spa tax planning and preparation service, with the owner's payroll handled alongside the injectors' commissions through payroll and provider compensation. If you already elected and have never run owner payroll, or set a salary years ago and have not revisited it, request a 20-minute fit call and bring your latest P&L; that is usually enough to tell whether the election is paying for itself.

Jenny Gao, CPA, EA

Founder of Balance Partners, a CPA-led accounting, tax and fractional CFO practice for med spas. Florida-licensed CPA and IRS Enrolled Agent with more than 13 years of accounting and tax experience. Jenny writes and reviews every guide on this site. About Jenny

This guide is general educational information for owners of med spas and aesthetics practices in the United States and is not accounting, tax, legal, medical, payroll or financial advice for your situation. Rules change and vary by entity, state and facts. Balance Partners, LLC does not provide audit, review, compilation or other attest services. Last reviewed November 8, 2026.