And that's not a character flaw. Nobody teaches you this in injector training or esthetics school. You learn to treat, you get good at it, clients start booking, and somewhere along the way you end up running a business in a language you were never taught.
Revenue is not profit, and a healthy bank balance doesn't prove you're profitable. Your revenue mix, prepaid cash and labor percentage decide what you actually keep. Split last month's revenue by category, work out labor as a percentage of net revenue, and you'll know quickly whether you're running Spa A or Spa B.
Same revenue. Very different story.
So let's translate it. Here's an example I walk through when I teach this live.
Two med spas each bring in $100,000 in the same month. Same busy calendar. Same tired owner at the end of the week.
The Spa A and Spa B numbers are teaching examples from my talks, not client results.
If you only looked at the top line, you'd assume these two businesses were in the same place. They're not even close. The difference is hiding underneath, in three places most owners never look.
1. The revenue mix
In Med Spa A, 62% of revenue comes from neuromodulators, and most of it comes from one provider. Med Spa B's revenue is spread across neuromods, filler, devices, skin treatments and retail.
Spa A isn't just less profitable. It's fragile. If that one provider leaves, gets sick or takes a long vacation, the month falls apart.
2. Prepaid cash that looks like profit
Spa A has $19,000 in packages, memberships and gift cards counted as revenue the day they were sold.
The cash is in the bank. But the visits, the provider time and the product are still owed. That money isn't earned yet, and when owners spend it like it is, they end up short a few months later. I break this one down in Package Sales Are Up. Is That Actually Good News?
3. Labor
This is the big one. Spa A spends 54.5% of its net revenue on labor. Spa B spends 28%. Same revenue, same month, and that one line explains most of the gap. Here's how to look at your own labor cost.
Why your CPA's P&L won't show you this
The profit and loss statement your accountant sends you is accurate. It's built for taxes and compliance. It tells you what happened.
What it doesn't do is tell you why, or what to change. It lumps every service into one line called "Service Income." It counts prepaid cash the day it comes in. It shows payroll as one number, so you can't see a commission problem, let alone fix it.
That's why I teach owners to run an Operational P&L alongside it. Six categories, in the order money actually moves:
- Revenue
- Cost of goods
- Labor
- Expenses
- Profit
- The metrics that explain why the numbers moved
Every line maps to a decision you can actually make.
Bank balance is not profitability
If you take one thing from this post, let it be this.
- A healthy bank balance doesn't mean you're profitable.
- Higher revenue doesn't mean you're profitable.
- Strong sales don't mean strong cash flow.
Revenue doesn't become cash in one step. It moves from gross revenue to net revenue, through cost of goods, labor and operating expenses, to net profit, and finally to cash. Guess at any link in that chain and you'll misdiagnose the whole thing.
Where to start this week
Pull last month's numbers and split your revenue by category: neuromods, filler, devices, skin, retail, memberships, packages and gift cards. Then work out what percentage of your net revenue went to labor.
You'll know very quickly whether you're running Spa A or Spa B. And if more revenue sits on top of a Spa A structure, it usually brings more stress, not more profit.
Frequently asked questions
What is a good profit margin for a med spa?
There isn't one number that fits every med spa, because it depends on your service mix, pay structure and number of providers. What matters most is knowing your own margin by category and watching whether it moves up or down each month. In the teaching example, one spa lost $8,575 and another kept $12,035 on the same $100,000 in revenue.
Why is my med spa busy but not profitable?
Three things usually hide behind a busy calendar: a concentrated revenue mix that depends on one service or provider, prepaid cash counted as revenue before it is earned, and a high labor percentage. In the teaching example, labor was 54.5% of net revenue in the spa that lost money and 28% in the spa that kept a profit.
What is an Operational P&L?
An Operational P&L is a profit and loss view with six categories in the order money moves: revenue, cost of goods, labor, expenses, profit, and the metrics that explain why the numbers changed. Every line maps to a decision an owner can make. It is run alongside your accountant's P&L, not instead of it.
Why doesn't my accountant's P&L show me where my profit is going?
A standard P&L is accurate, but it is built for taxes and compliance. It tells you what happened, not why. It lumps every service into one line, counts prepaid cash the day it comes in, and shows payroll as a single number, so problems like commissions or revenue concentration stay hidden.
Is prepaid package and membership money really profit?
No. If a client has paid but not yet received the service, the cash is in the bank but the visit, provider time and product are still owed. That money is a promise until you deliver it. Counting it as profit is one of the main reasons owners feel short on cash a few months later.
How do I find out if my med spa is actually profitable?
Pull last month's numbers and split revenue by category: neuromods, filler, devices, skin, retail, memberships, packages and gift cards. Then calculate what percentage of net revenue went to labor. Those two views show quickly whether your business is built like the spa that lost money or the one that kept a profit.
Want help finding where your profit is going?
Start with my free Profit Mapping Training. It's the same exercise I use with clients who tell me, "We're making money, but I don't feel secure."
Or book a free discovery call and we'll look at your numbers together.