Profit and cash are not the same thing, and the gap between them is where a lot of med spa owners get caught off guard. Your profit and loss statement can show a healthy bottom line while your bank account tells a completely different story. The usual culprit is timing: money tied up in inventory you have bought but not yet used, bills coming due that have not hit your P&L yet, and cash collected upfront for services you still owe. To see what is actually going on, you have to read your profit and loss statement and your balance sheet together. Either one alone will mislead you.
At Liguori Accounting, we work exclusively with medical aesthetic practices, and “I’m profitable but I have no cash” is one of the most common confusions I help owners untangle. I dug into this recently in a conversation with healthcare attorneys Sara Shikhman and Emily Wright of Lengea Law, and it is worth breaking down on its own because it trips up practices at every revenue level.
What is the difference between profit and cash flow?
Profit is an accounting measure. It is what is left after you subtract your expenses from your revenue over a period of time, and it lives on your profit and loss statement. Cash flow is the actual movement of money in and out of your bank account. The two are related, but they almost never move in lockstep.
Here is the simplest way I explain it. Your P&L tells you whether your business made money over a span of time, a month, a quarter, or a year. Your bank balance tells you how much money you have at a single moment. A practice can be genuinely profitable for the year and still be short on cash in a given week, because the timing of when money moves does not match the timing of when revenue and expenses get recorded.
Why does inventory drain my cash without showing up on my P&L?
Inventory is the single biggest reason profitable med spas run short on cash, and the mechanics surprise people.
Say you buy $100,000 of filler. That purchase does not land on your profit and loss statement as an expense. It lands on your balance sheet as inventory, an asset you now own. When the bill comes due, it pulls cash straight out of your account. But it does not become an expense, your cost of goods sold, until the product is actually used in a treatment.
So you hit a stretch where the cash is gone but the expense has not shown up yet. Your P&L still looks strong because the cost has not landed on it. Your bank account looks alarming because the money already left. As I put it in that conversation, “I’m showing all this profit, but I don’t have cash in my account anymore. Often it’s locked up in inventory, or it’s been paid for product I’ve purchased but haven’t used yet.” The timing of inventory purchases can swing your cash balance hard.
This is also why bulk-buying to chase a vendor discount can backfire. If you do not have the patient volume to work through the product, you have converted cash you needed into shelves of filler, and a 5 to 10 percent discount rarely makes up for the squeeze.
What does my balance sheet show that my P&L doesn’t?
Your profit and loss statement and your balance sheet answer different questions, which is exactly why you cannot rely on one without the other.
The profit and loss statement shows activity over a period: revenue at the top, then cost of goods sold to get to gross profit, then operating expenses like payroll, rent, and software to reach your bottom line. It answers one question. Did the business make money during this stretch.
The balance sheet is a snapshot at a single moment. It shows what you own and what you owe right now: cash, inventory, outstanding payables, debt, and deferred revenue from packages and gift cards you have sold but not yet delivered. It answers a different question. What is the financial position of the business today.
Read them side by side and the disconnect resolves. The P&L says you are profitable. The balance sheet shows the $100,000 sitting in inventory and the payable coming due. The missing cash stops being a mystery, because it is right there, accounted for.
What else ties up cash when I’m profitable?
Inventory is the most common cause, but it is not the only thing that opens a gap between profit and cash.
Vendor terms. If a supplier gives you 90 days to pay, your bank account looks healthy in the meantime, but that bill is still coming. The number in your account is a snapshot, not a cushion, and it does not reflect what you already owe.
Deferred revenue. When a client pays $3,600 upfront for a package of six laser sessions, that money is in your account, but you have not earned it yet. Booking it as revenue the day it arrives overstates your profit and sets you up to spend cash you actually owe back in services. I broke this down in detail in our guide on how packages, gift cards, and memberships distort your books.
Debt and equipment financing. Loan principal payments come out of cash but are not an expense on your P&L. A practice can show a profit and still feel squeezed every month because a chunk of cash is going to pay down a device.
Owner draws and taxes. The money you take out of the business and the taxes you owe on your profit both pull cash without ever appearing as expenses.
How do I stay ahead of the profit-versus-cash gap?
The fix is not complicated, but it does take a habit.
Look at your profit and loss statement and your balance sheet together, at least monthly. The P&L by month is my favorite report because it lets you spot trends and catch outliers early, but it only tells half the story without the balance sheet next to it. We walk through the metrics worth watching in our breakdown of the KPIs every med spa owner should track.
Watch your cash separately from your profit. Whether you can cover payroll and your next inventory order is a different question from whether you were profitable last month, and you need to be able to answer both.
Keep your inventory and deferred revenue recorded correctly. If those are not on your books accurately, your profit number is wrong and the gap will keep blindsiding you. That is a big part of what we monitor for med spa clients month over month.
If you have ever looked at a profitable P&L and wondered where the money went, the answer is almost always sitting on your balance sheet. The two reports are built to be read together, and once you do, the picture stops being confusing.
Frequently Asked Questions
I’m showing a profit but I have no cash in my account. Why?
The most likely answer is that cash you earned is tied up somewhere your P&L does not show: inventory you bought but have not used, payables coming due, loan principal, owner draws, and taxes. Pull your balance sheet for the same period and compare it to your P&L. The missing cash is almost always sitting in one of those line items.
Is it better to look at my profit or my cash flow?
Both, because they answer different questions. Profit tells you whether your pricing and cost structure work over time. Cash flow tells you whether you can meet your obligations right now. A healthy practice needs both in good shape, and watching only one is how owners get surprised.
How does buying inventory affect my taxes if it’s not an expense yet?
Inventory generally is not deductible when you buy it. It becomes cost of goods sold, and therefore deductible, as it gets used in services. This is one reason buying a large amount of product at year end does not deliver the tax write-off some owners expect, and it is worth planning purchases with that in mind.
Why do I need a balance sheet if my P&L already shows I’m profitable?
Because the P&L cannot show you inventory, payables, debt, deferred revenue, or your cash position. Those all live on the balance sheet, and that is usually where the explanation for your cash situation is hiding. Reviewing a P&L without a balance sheet is like checking your speed without looking at your fuel gauge.
How often should I review these reports?
At a minimum, review your P&L and balance sheet together every month, and keep an eye on cash weekly so you always know you can cover payroll and inventory. Monthly is enough to catch most timing issues before they turn into a cash crunch.
If you are not sure your inventory, deferred revenue, and payables are being recorded in a way that gives you numbers you can trust, that is exactly what our bookkeeping and Virtual CFO services are built to handle for med spas. Start a conversation with our team, and let’s make sure your financials are telling you the truth.
