How to Pay Injectors and Providers: Commissions, Payroll and Accounting

Provider pay is the largest controllable cost in a med spa and the one most often designed on a napkin. An injector is hired at an hourly rate "plus 20%," nobody writes down 20% of what, and six months later the owner cannot say what each provider costs against the revenue she produces. Then a package is sold, commission is paid on it, and someone else delivers the treatments next quarter.

This guide covers the structures practices use, what counts as commissionable revenue, how commissions collide with prepaid packages, payroll tax mechanics, the medical director, and the month-end accounting that turns provider cost into a number you can manage. Fee-splitting and corporate-practice-of-medicine questions belong with a health-care attorney.

Common compensation structures

Most practices we see land on a base hourly rate plus a commission on net service revenue, sometimes with a retail percentage. The structure matters less than the definitions: "20% of production" without saying whether production means list price, price after discounts, price after product cost, or cash collected produces a different number every month depending on who runs the report.

What commissionable revenue should exclude

Start from the service revenue the practice recognized for treatments the provider delivered, then remove anything that is not the practice's to share. Sales tax collected on retail is the state's money. Discounts and promotions reduce the base; pay on the price the patient paid. If the plan is on net revenue, subtract the actual cost of product used, taken from the inventory system at cost rather than an estimate. Tips belong to the employee and run through payroll as tips, outside the formula. Refunds and chargebacks reverse the commission in the month they occur. Complimentary touch-ups carry no revenue and no commission. Gift cards are not revenue when sold and earn nothing until redeemed. Packages need their own section.

Commissions and prepaid packages: pay on redemption, not on sale

A $2,400 package of six treatments is cash today and a liability to deliver six sessions. For management books the sale is recorded as deferred revenue and released at $400 per session performed; our guide to memberships, packages and gift cards covers the entries. Commission should follow the same path: earned on each $400 redemption, when the work is done and the revenue is recognized.

Paying commission at the point of sale creates two problems. The first is cash: at 20% the practice pays $480 in October on revenue it will earn over the following months, while the full $2,400 obligation still sits on the balance sheet. The second is attribution: if the patient refunds the remaining sessions, or the selling injector leaves and a colleague delivers them, commission has been paid on revenue never earned or earned by someone else, and recovering it from a departed employee is rarely practical. To reward selling, pay a small flat bonus at sale and the service commission on redemption, and write both into the plan.

Payroll mechanics for commissions

Employee or contractor first

Most injectors who work set schedules in your rooms, on your equipment, with your injectables and at prices you set look like employees under the IRS common-law test, which weighs behavioral control, financial control and the relationship of the parties. A license, a commission arrangement and a signed contractor agreement do not change that analysis; the IRS will issue a determination on Form SS-8 if either side asks. Our guide to the med spa employee versus independent contractor rules goes through the factors; the rest of this article assumes W-2 providers.

Commissions are wages

Commissions are subject to income tax withholding and to Social Security and Medicare tax exactly like hourly pay. For 2026 the Social Security wage base is $184,500, so a high-producing injector pays 6.2% (and you match 6.2%) until her year-to-date wages cross that figure; Medicare at 1.45% each has no cap, and you must withhold an additional 0.9% from wages above $200,000. A commission paid separately from regular wages is supplemental pay, and IRS Publication 15 allows a flat 22% withholding rate on it, which is why a commission check can look "taxed more"; it settles up on the return.

Federal unemployment tax nets to 0.6% of the first $7,000 of each employee's wages. In Florida, reemployment tax for a new employer is 2.7% of the first $7,000, reported quarterly on Form RT-6; established employers are assigned a rate between 0.1% and 5.4%. Both run out early in the year for a full-time provider.

One rule owners miss: for non-exempt staff, commissions count toward the regular rate of pay used to compute overtime. The Department of Labor is explicit that earnings determined on a commission basis go into the average hourly rate, and overtime is owed at one and a half times that rate for hours over 40 in a workweek. Payroll software handles this only if the commission is allocated to the right pay period.

The medical director

A non-employee medical director paid a monthly fee under a written agreement receives a Form 1099 once payments reach $2,000 in 2026. If the director bills through a professional corporation, the usual exemption for payments to corporations does not apply to medical and health care payments, which the IRS instructions put in box 6 of Form 1099-MISC; fees paid by one professional to another go on Form 1099-NEC. Which form fits depends on the agreement, so give your accountant the contract. In an MSO and professional-entity structure the director often owns the professional entity, and the fee is part of the intercompany design; see our MSO and professional-entity accounting guide.

Worked example: one injector, one month

This is an illustration, not a client. Dana is a W-2 nurse injector at a single-location Tampa practice, paid $32 an hour plus 20% of service revenue net of product cost, plus 10% of retail. In September she worked 152 hours. The production report shows $41,200 of services at list price and $1,900 of discounts, so $39,300 of recognized service revenue, of which $7,500 was redemptions of packages sold in earlier months. She also sold $6,000 of new packages, which earn nothing until redeemed. Retail she recommended came to $2,150 before sales tax, and the inventory system shows $12,400 of neurotoxin and filler, at cost, used on her patients.

Dana's cost is $11,259 against $39,300 of service revenue, or 28.6% before benefits. Had the plan paid commission on the $6,000 of packages sold, the practice would have paid up to $1,200 more this month on revenue it has not earned. Had the plan ignored product cost, commission on the gross $39,300 would have been $7,860, and Dana would be indifferent between a treatment that uses two syringes and one that uses four.

The accounting: a month-end accrual that ties to production

Commissions for September are usually paid in October's first payroll. If nothing is recorded at September 30, September's P&L shows the revenue and October's shows the cost. The fix is an accrual on the last day of the month: debit provider commission expense and credit accrued payroll for the commissions earned, with a second line for the employer payroll tax, reversed on October 1 so the payroll run posts normally. The accrual should tie to the production report by provider, and the October payroll register should tie back to it within a small tolerance; a difference means the report, the plan definitions or the payroll entry is wrong. Keep the production report, the commission calculation and the payroll register together in the close file; a final-pay dispute, a wage claim or an employment tax exam will ask for all three. Our monthly close checklist puts this step in sequence.

The KPI this produces is provider cost as a percentage of service revenue: wages, commissions, employer payroll taxes and benefits for providers, divided by the service revenue they generated, tracked by provider and in total each month. We do not publish a benchmark, because it depends on the compensation design, the service mix and whether the owner also injects; what matters is measuring it the same way every month and knowing why it moved. A rising percentage on flat revenue usually means discounting; a falling one alongside rising package sales may only mean commissions lag redemptions.

Common mistakes

Paying commission on package sales rather than redemptions. Calculating commission on list price while patients pay promotional prices. Including sales tax or tips in the base. Treating a full-schedule injector as a 1099 contractor because she "has her own LLC." Paying commissions quarterly with no allocation to workweeks, breaking the overtime calculation. Never accruing, so provider cost is always a month behind revenue. Running the medical director's fee through payroll one year and a 1099 the next. And having no written plan, which guarantees a dispute the first time a provider resigns mid-month with packages outstanding.

When to get help

If your commission plan is not written down, or your payroll and your production report have never been reconciled, start there. Balance Partners is a CPA-led accounting practice in Tampa working with med spas nationwide; our monthly close includes the commission accrual tied to your production report and the provider cost KPI by injector, and our payroll, W-2 and 1099 support covers the filings. The med spa accounting and tax services page describes the full engagement.

If you are designing or changing a plan, request a 20-minute fit call and bring the current plan, one month's production report and the matching payroll register. We will show you where they disagree.

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.