How to Read a Med Spa P&L: Service Lines, Provider Pay and Product Cost

Most med spa owners read the profit and loss statement the way they read a bank balance: one number at the bottom, up or down. But a med spa P&L built the right way answers a more useful set of questions. Did the injectables make money after the product and the injector were paid? Is the laser earning back its loan? Is the owner's own labor free in the numbers, or priced? Is the practice keeping fifteen cents of every dollar, or five? A generic P&L with "Sales" at the top and "Payroll" in the middle cannot answer any of those.

This guide walks through a P&L shaped for a medical aesthetics practice, line by line, using an illustrative $1.2 million single-location practice, then gives the three ratios to check every month and the ways the report lies when the bookkeeping underneath is wrong.

What a med spa P&L should look like

Five layers, in order. Revenue by service line, recognized when the treatment is delivered rather than when the package is sold. Cost of goods sold, holding the three costs that move with each treatment: product, consumables and the treating provider's pay. Gross margin, by line and in total. Operating expenses, including a market salary for the owner whether or not she takes it. Then EBITDA, and below it depreciation, interest and the result that flows to the tax return.

The layout comes from the chart of accounts, so if yours does not produce it, that is where the fix starts. Two decisions in that chart matter more than all the others. Provider pay goes in cost of goods sold, not in a payroll line with the front desk, because an injector's wages and commissions rise and fall with treatments and the receptionist's do not. And packages, memberships and gift cards post to a liability when sold and to revenue when redeemed, which is what makes the revenue lines mean "treatments delivered this month."

Worked example: October for a $1.2 million Orlando practice (illustrative)

This is October for an illustrative single-location practice in Orlando, Florida, taxed as an S corporation, with revenue running at about $100,000 a month. The owner is an RN who injects two days a week and draws a salary through payroll; the clinical team is a nurse practitioner injector, a laser technician and an aesthetician, with two front desk staff and a physician medical director paid a monthly fee. Books are accrual in the ways that matter for a med spa: package revenue recognized on redemption, product relieved from inventory as used, commissions accrued in the month earned. All figures are rounded and illustrative.

Four things happened in October that are not on this report: $2,100 of principal on the laser loan, $6,000 of distributions to the owner on top of her salary, $7,000 more neurotoxin purchased than used because the distributor's quarterly order arrived, and $3,000 more in packages sold than redeemed. Add back the $3,500 of depreciation, which cost nothing this month, and the bank account fell by about $1,000 in a month that shows a $7,600 profit. That is normal, and it is the subject of why your med spa shows a profit but has no cash.

Line by line

Revenue by service line

Each line is treatments delivered in October, net of discounts, excluding sales tax collected on retail and excluding tips, both of which are liabilities. The $56,000 of injectables includes $11,000 of package treatments that were paid for in earlier months and redeemed in October; the $14,000 of new packages sold in October is not here at all, because it sits in deferred revenue until the patient comes in. The membership line is the fees recognized for the month's benefit plus credits that expired under the signed terms. The mechanics are in memberships, packages and gift cards accounting.

Splitting revenue this way is the only way to see mix. A practice that is 56% injectables will carry a thinner blended gross margin than a device-heavy practice at the same quality of management, because the manufacturer sets the product cost. Blending the lines hides that.

Cost of goods sold: product, consumables, provider pay

Injectable product used is the month's count: opening inventory plus purchases less closing inventory, relieved as syringes and vials leave the refrigerator. It is not the month's distributor invoices. A P&L that expenses purchases follows the ordering calendar rather than the treatment calendar and swings ten points between a stock-up month and the one after; the count mechanics are in inventory accounting for injectables and retail. Consumables are laser tips, gel, numbing cream and facial supplies. Retail product cost is the skincare sold at cost.

Treating-provider pay is the wages, commissions and employer payroll taxes of the people who perform treatments: the NP injector, the owner's own injecting hours if she is paid for them separately, the laser technician and the aesthetician. Commissions are accrued from the production report in the month the treatments were performed, so October's provider cost sits beside October's revenue even though the commission check is cut in November. If commissions hit the P&L when paid, every month is comparing this month's revenue with last month's provider cost. The plan side is in injector compensation and commission payroll.

Gross margin by line

Gross margin is what the treatment leaves behind after the product and the provider are paid, and it should be read by line, not just in total.

The injectable margin of 40.2% is inside the range we aim for in client books, and the device margin of 70% is at the top of its range, with the device itself in depreciation below the line. Those ranges, and why there is no reliable industry average to compare against, are in med spa profit margins and benchmarks. The point of the table is the conversation it starts: if injectable margin slips to 36% next month, the cause is in product cost (pricing, discounting, waste) or in provider pay (commission tiers, slow days), and the two have different fixes.

Operating expenses

Overhead is what it costs to have a practice open at all. The owner's $9,000 salary is a market wage for the clinical and management work she does; without it the P&L would show a 21% EBITDA margin that includes her unpaid labor. An S corporation owner must take reasonable compensation through payroll before distributions anyway, under the IRS position on S corporation compensation; how to set it is a separate question, covered in our guide to how a med spa owner should pay themselves.

Merchant processing fees belong here as an expense, with revenue shown gross. The processor's Form 1099-K reports the gross amount of card transactions, not adjusted for fees, per the IRS's guidance on Form 1099-K, so books that record net deposits as revenue will disagree with it. The medical director fee is overhead rather than cost of goods sold because it does not vary with treatments; a practice with an MSO and professional entity will show a management fee here instead.

EBITDA, and what is below it

EBITDA after owner salary, $12,000 or 12%, is the operating result of the practice and the number we manage to. Below it sit depreciation, which spreads the cost of the lasers and build-out over the years they are used (IRS Publication 946 describes the book side; the tax deduction may be much faster), and interest on the equipment loans. Net income of $7,600 is what flows to the owner's return. The loan principal is not here, the distributions are not here, and the inventory purchases are not here, which is why the bottom line is not spendable cash.

The three ratios to check every month

Read the percent column before the dollars; most QuickBooks P&Ls leave it off and it is the most useful column on the report. Then check three ratios against the trailing three months and against the targets we use in client books, which are the firm's own and not industry statistics.

The first ratio catches pricing drift, discounting and waste before they show in the margin. The second catches the most common way a med spa quietly loses money: adding a provider or a coordinator faster than the schedule fills. In October the practice is inside both ranges, and its 26.2% provider cost against service revenue is in range too. The third is the one that says whether the model works, and 12% is below where we want a $1.2 million practice to be. With the first two ratios in range, the gap is in occupancy at 8% and in a marketing line that has not yet produced the visits to fill the second treatment room. That is a specific conversation, which is what a correctly built P&L is for.

What usually goes wrong

Packages booked as revenue when sold. The promotion month looks wonderful, the delivery months show provider cost with no revenue, and the owner draws against profit that belongs to patients. A P&L with no deferred revenue schedule beside it cannot be trusted on this point.

Product expensed when purchased. Cost follows the distributor's shipping calendar. Gross margin swings with the order cycle and the owner alternates between relief and panic for no clinical reason.

Provider pay in overhead. With injector wages in a single payroll line beside the front desk, gross margin is meaningless and a slip in commission structure is invisible until year-end.

Commissions on a cash basis. October's commissions paid in November land in November's P&L against November's revenue. A month with a strong close and a weak open looks like two different practices.

Revenue net of merchant fees. Deposits booked as sales understate revenue by the processing fee, hide a 2.8% cost that deserves a line of its own, and will not agree with the 1099-K.

The owner's labor at zero. Distributions never appear on the P&L, so an owner-injector who takes no salary shows a margin that includes her own wages. The number is flattering and unusable.

Sales tax, tips and discounts in the wrong place. Sales tax collected on retail and tips collected for staff are liabilities, not revenue; discounts the patient did not pay are contra-revenue, not marketing expense. Each one moves a margin without anyone deciding it should, and they are the errors a cleanup finds first.

When to get help

If your P&L has one revenue line, one payroll line and no percent column, the fix is not more effort reading it; it is a chart of accounts rebuilt for a med spa and a monthly close that produces revenue by line, product used rather than purchased, provider pay as a direct cost and a deferred revenue schedule beside the report. That is the first month's work in our med spa bookkeeping and monthly close engagement, closed by the tenth business day as part of Med Spa Core from $1,500 a month, because every month of analysis afterward depends on it.

If you would like a second set of eyes on your current report, request a 20-minute fit call and bring last month's P&L, your POS sales-by-category report and your deferred revenue or outstanding-balance report. We will tell you what the numbers say, which of the distortions above they carry, and whether the report is built to answer the three questions that matter.

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.