Opening a Med Spa: Entity Choice, Tax Registrations and Accounting Setup Checklist

Most of what goes wrong in a med spa's first tax year was decided in the first sixty days: the entity was formed before anyone asked whether the state lets a nurse own a medical practice, the S-corp election window closed unnoticed, the POS deposited into a personal account, and package sales were booked as revenue. None of it is hard to do right. All of it is expensive to undo.

This checklist covers the accounting and tax side of opening a medical aesthetics practice, with Florida specifics. It assumes you are also talking to a health-care attorney about licensing and ownership, which is where the entity question starts.

Entity choice: LLC, S-corp election, or professional entity plus MSO

Begin with the legal question, not the tax one. In states that enforce the corporate practice of medicine doctrine, a medical practice must be owned as state law requires; California requires a physician to own at least 51% of a medical practice, and Texas treats non-invasive aesthetic services as the practice of medicine. Where the doctrine applies and the founder is not the required license holder, the usual answer is two entities: a professional entity that employs the clinicians and bills patients, and a management services organization owned by the entrepreneur that provides space, equipment, staff, marketing and administration for a fee under a management services agreement, without directing clinical judgment. Whether your state requires this is a question for a health-care attorney; the accountant's job is two sets of books, a defensible fee, reconciled intercompany balances and two returns, covered in MSO and professional-entity accounting.

Where a single entity works, most owners form an LLC; in Florida that is a $125 filing, described in how to form an LLC in Florida. The tax decision is whether that entity should elect S-corporation status on Form 2553, due within 2 months and 15 days after the start of the tax year it should cover, with late relief under Rev. Proc. 2013-30. In exchange for payroll, a separate return and a reasonable salary paid before distributions, you stop paying self-employment tax on the profit above that salary.

The math decides when that is worth it. Self-employment tax is 15.3% (12.4% Social Security plus 2.9% Medicare) on 92.35% of net earnings, half of it deductible. Take an illustrative single owner:

• At $60,000 of profit, self-employment tax is about $8,478. As an S-corp paying a $45,000 salary, employer and employee payroll tax together are $6,885, plus roughly $231 of federal and Florida unemployment tax, about $7,116. The saving of roughly $1,360 is eaten by payroll processing and a second return; we would not elect.
• At $180,000 of profit, self-employment tax is about $25,433. With a $100,000 salary, payroll taxes are $15,300 plus about $231 of unemployment tax, about $15,531. The saving is roughly $9,900 a year, clearly worth the overhead.

The salary cannot be nominal. In the Watson case the court replaced a $24,000 salary with $91,044 of reasonable compensation for a professional who took the rest as distributions; an injector-owner producing most of the revenue invites the same scrutiny. Two more wrinkles: the Social Security portion stops at the 2026 wage base of $184,500, which narrows the gap at high profit, and under Section 199A a med spa may be a "health" specified service business whose 20% QBI deduction phases out above $201,750 of taxable income (single) or $403,500 (joint) for 2026, while W-2 salary is never QBI. Whether a practice or its MSO is a health business depends on the facts.

Federal and Florida registrations

Each registration has its own trigger, and several are easy to miss because they are not needed on opening day. Federal payroll filings (Forms 941 and 940) begin once wages are paid, and the county and city will want a local business tax receipt.

Florida has no personal income tax, and its 5.5% corporate income tax applies only to C corporations, so a pass-through med spa generally has no Florida income tax return. See the Sunbiz annual report page and the reemployment tax page for current figures.

Banking, merchant accounts and the chart of accounts

Open a dedicated operating account for each entity before the first dollar moves, and route everything through it: POS deposits, the merchant account, the equipment loan, vendor autopay. With an MSO and a professional entity, patient receipts belong in the professional entity's account and the MSO is paid its fee by transfer; commingling undoes the separation the attorney built. Personal spending on the business card creates a cleanup problem and, in an S-corp, a distribution question.

Merchant deposits arrive net of fees and chargebacks, in batches that do not match a calendar day. The books must still show gross sales with fees as an expense, so the POS daily summary, not the bank deposit, drives the revenue entries.

Set up the chart of accounts for the practice you will have in year three: revenue by service line (injectables, energy devices, skin, retail), cost of goods sold on the same lines, an inventory asset, a deferred revenue liability for packages, memberships and gift cards, sales tax payable, and provider commission accruals. The med spa chart of accounts guide has a template; map every POS item, including its tax flag, before launch.

Two design decisions belong in week one. Product is inventory, deducted as used, so the practice needs an inventory account and a count routine from the first order. Package and membership money is a liability until the treatment is delivered; for tax, a cash-method practice reports it when received, while an accrual-method practice may defer it at most one year under Section 451(c). Choose the method deliberately before the first return.

Payroll, contractors and insurance

Injectors, aestheticians and front desk staff are employees unless the facts say otherwise under the IRS common-law test of behavioral control, financial control and relationship. A nurse who works your schedule, uses your product, rooms and patient list, and earns a commission on your pricing is almost certainly a W-2 employee whatever the contract says. The medical director is usually the true contractor: an independent physician who supervises under an agreement and bills a fee, paid on a 1099. Collect a W-9 before the first payment; for 2026 payments the 1099 threshold is $2,000, and the corporate exemption does not apply to medical payments. The rules are in employee vs. independent contractor for med spas. Use a payroll service from the first paycheck; deposits, reemployment filings and commissions are not a spreadsheet job.

Insurance is a cost we do not price here; premiums depend on the carrier, the procedures and the providers. Expect to need professional liability for the entity and each provider, general liability, property coverage for devices, workers' compensation once you reach four employees in Florida, and cyber coverage because you hold patient data. Landlords and lenders want certificates before signing, so get quotes before the lease.

Pre-opening costs

Money spent before the doors open is not all deductible on opening day. Start-up costs (market research, pre-opening training and advertising) and organizational costs (filing and legal fees to form the entity) have their own rules: you may elect to deduct up to $5,000 of start-up costs and up to $5,000 of organizational costs in the first year, each reduced by the amount those costs exceed $50,000, with the remainder amortized ratably over 180 months beginning in the month operations begin. Equipment, build-out and inventory bought before opening are not start-up costs; they follow the normal depreciation and inventory rules. Keep pre-opening spending in its own account, with receipts.

Launch-month checklist

Common mistakes

Forming the entity before asking the corporate-practice question, then re-papering ownership six months in. Missing the Form 2553 window and paying a year of avoidable self-employment tax. Depositing POS receipts into a personal account. Letting the POS vendor set the tax flags. Booking package sales as revenue, so the first profit and loss statement shows a profit that is really a liability. Expensing the opening inventory order. Paying injectors on a 1099 because a competitor does. Skipping workers' comp at the fourth hire. And filing the Florida annual report late, which costs $400 and, eventually, the entity itself.

When to get help

The best time to bring in an accountant who knows medical aesthetics is before the entity is formed, when the S-corp, MSO and accounting-method decisions are still free to make. The second-best time is before the POS goes live, when the chart of accounts and item mapping can be built once rather than repaired.

Balance Partners is a CPA-led accounting practice in Tampa that sets up and runs the books for medical aesthetics practices nationwide, from entity and registration planning through the monthly close. See our med spa accounting and tax services or request a 20-minute fit call to walk through your launch plan.

Jenny Gao, CPA, EA

Founder of Balance Partners. Florida-licensed CPA and IRS Enrolled Agent with more than a decade of accounting and tax experience. Jenny writes and reviews every guide on this site. About Jenny

This article is general educational information for U.S. business owners and is not accounting, tax, legal, payroll or financial advice for your situation. Rules change and vary by entity, state and facts. Balance Partners, LLC does not provide audit, review or other attest services. Last reviewed October 15, 2026.