Short answer
A med spa shows a profit without cash because patients pay before treatment and the practice spends that money before delivering it, because injectables are paid for before they are used, and because device loan principal, owner distributions, the owner's estimated tax payments, equipment deposits and collected sales tax all leave the bank without touching the P&L. Reconcile the two with a bridge: start with net income, add back depreciation, adjust for the change in every balance sheet account (deferred revenue first), then subtract equipment purchases, loan principal and distributions; the result must equal the change in the bank balance. In the illustrative Atlanta quarter, $45,000 of profit became a $37,500 drop in cash, and the fix was to set distributions from cash after debt service rather than from net income.
Key takeaways
- The largest med spa cause is package and membership cash spent before the treatments are delivered: in the redemption months profit outruns cash by the package value delivered, whether the books are cash or accrual.
- Injectables in the refrigerator, device loan principal, equipment deposits, owner distributions and the owner's quarterly estimated tax payments all use cash without appearing as expenses.
- Sales tax collected on retail and tips collected for staff look like cash until the due date; neither is revenue and neither is yours.
- Build the bridge from net income to the change in cash each month; read the deferred revenue line first, then the equity line.
- In the illustrative third quarter, operations produced $16,500 of cash on $45,000 of profit, and $54,000 then left for a device deposit, loan principal and distributions.
- Set owner distributions from cash from operations less debt service, hold presale cash separately until redemption, and size distributor orders to a 13-week forecast rather than to a volume tier.
In this guide
The call usually comes in the week after quarter-end. The P&L says the practice made $45,000. The owner's bookkeeper confirms it. And the operating account, which held $62,000 in July, is down to $24,000 with a commission payroll on Friday. Nobody has stolen anything and nothing in the books is wrong. A med spa simply has more ways than almost any other small business to earn a profit on paper while the cash goes somewhere else.
This guide names those ways, shows how to reconcile net income to the change in the bank balance with a bridge you can build from your own balance sheet, and gives an illustrative quarter for a single-location practice in which a $45,000 profit coincided with a $37,500 drop in cash.
Profit and cash answer different questions
Profit is revenue earned less the expenses that produced it, measured under your accounting method for a period. Cash is what is in the account at a moment. In a med spa the two part company for a structural reason: patients pay before treatment (packages, memberships, gift cards), product is paid for before it is used, providers are paid after the treatment, and the state collects its retail sales tax a month after you do. Add equipment financing and an owner who is also the lead injector, and the P&L and the bank statement are describing the same practice on two different clocks.
The reconciliation between them is the statement of cash flows, which most QuickBooks Online users never open. The rest of this guide is that statement, translated into med spa terms.
The med spa-specific causes
Package and membership cash that was spent before the treatments were delivered
This is the largest and least understood. When a spring promotion sells $60,000 of laser and injectable packages, $60,000 arrives in May. If the books are kept on a cash basis, May shows a huge profit, the owner takes a distribution against it, and the summer months show provider pay and product cost for those treatments with no revenue to match, so the P&L swings to a loss that is just as misleading as May's profit was. If the books are kept correctly, with package sales in a deferred revenue liability and revenue recognized on redemption, the P&L is right in every month, and the cash problem is still there: the money arrived in May and was spent in May, and the treatments are being delivered in August with no new cash attached. Either way, the quarter in which patients redeem is a quarter in which profit outruns cash by the amount of package value delivered. The accounting is in memberships, packages and gift cards accounting; the tax side matters too, since a cash-method practice reports advance payments as income when received and an accrual-method practice may defer them at most one tax year under section 451(c), per IRS Publication 538.
Inventory build-up
Neurotoxin, filler and biostimulators are expensive, perishable and bought in lots. Product in the refrigerator is cash that has already left but has not reached the P&L, which only sees it as the syringes are used. A practice that stocks up ahead of the fall season, or buys into a distributor's volume tier, moves $10,000 or $20,000 from the bank to the shelf in one invoice and the P&L does not flinch. Retail skincare does the same on a smaller scale. The count-based mechanics are in inventory accounting for injectables and retail.
Equipment loans and the device itself
A $120,000 laser financed over five years costs about $2,000 a month in principal that never appears on the P&L; only the interest does. The device is on the balance sheet and reaches the P&L as depreciation over its useful life, which IRS Publication 946 describes. The tax return may deduct the whole device in year one under Section 179 or 100% bonus depreciation, which lowers the tax bill but does not change the monthly loan payment. A practice with two financed devices can show a 15% EBITDA margin and send a third of it to lenders.
Owner distributions and estimated tax payments
In an S corporation the owner's salary is on the P&L (in a partnership, guaranteed payments play that role) and everything else she takes is a distribution, recorded in equity. The quarterly estimated tax payments she makes from the business account, including the September 15 and January 15 installments, are distributions too, because the tax is hers, not the entity's. A profitable practice whose owner draws the profit plus her taxes will show the profit and have none of the cash. Sizing the draws is covered in how a med spa owner should pay themselves.
Sales tax collected and spent
Retail skincare carries sales tax in essentially every state with a sales tax. The tax collected in a strong retail month sits in the operating account looking like cash until the return is filed the next month. Practices that spend it find out on the due date. It is never revenue and never yours.
Merchant settlement lag, reserves and chargebacks
Card sales from the last two or three days of the month are revenue in that month and cash in the next. A processor that sees a spike in chargebacks or a jump in prepaid package volume may hold a reserve, which is revenue you earned and cash you cannot touch. Patient financing partners pay on their own schedule, net of their fee. None of this is large in a normal month and all of it is large at quarter-end.
Commissions paid ahead of delivery
If the commission plan pays injectors on package sales rather than on treatments delivered, cash leaves at the sale while the revenue arrives over months. On correctly kept books this shows up as a prepaid commission asset that unwinds slowly, and in the bank as money that left in May.
The reconciliation from net income to cash
Start with net income from the accrual P&L for the period. Add back depreciation, which reduced profit without using cash. Then walk the balance sheet from the first day of the period to the last, line by line. An increase in an asset (inventory, prepaid insurance, merchant settlements in transit, a processor reserve) used cash; a decrease released it. An increase in a liability (deferred revenue, accrued commissions, sales tax payable, accounts payable) provided cash; a decrease used it. Then subtract equipment purchases and deposits, loan principal paid and owner distributions, and add any new borrowing or owner contributions. The result must equal the change in the bank balance; if it does not, the balance sheet is not reconciled and the bridge has found the problem.
The deferred revenue line is the one a med spa owner should read first. If it fell, patients redeemed more than they bought, and profit outran cash by that amount. If it rose, the opposite: cash outran profit, which feels wonderful and means the practice is holding other people's treatments.
Worked example: an Atlanta practice's third quarter (illustrative)
Take an illustrative single-location practice in Atlanta, Georgia doing about $1.5 million a year: an owner who is a nurse practitioner and the lead injector, an RN injector, a laser technician and an aesthetician, taxed as an S corporation and keeping accrual books. A May promotion sold $60,000 of packages. In the third quarter, July through September, the P&L shows net income of $45,000. The operating account opened the quarter at $62,000 and closed at $24,500. Here is the bridge; the figures are rounded and illustrative.
| Third quarter 2026 (illustrative) | Amount | What happened |
|---|---|---|
| Net income per the P&L | $45,000 | Revenue recognized as treatments were delivered |
| Add: depreciation | $10,500 | Lasers and build-out; no cash this quarter |
| Less: decrease in deferred revenue | ($18,000) | Package treatments delivered exceeded new packages sold; the cash came in during May |
| Less: increase in inventory | ($12,000) | Fall stock-up order from the injectables distributor |
| Less: increase in merchant settlements in transit | ($3,000) | September 28–30 card sales settled in October |
| Less: processor reserve held | ($2,500) | Held after a chargeback spike on a package dispute |
| Add: increase in accrued commissions and payables | $4,000 | September commissions paid in October |
| Less: decrease in sales tax payable | ($1,500) | June's retail-heavy tax remitted in July |
| Less: prepaid insurance | ($6,000) | Annual malpractice premium paid in July |
| Cash from operations | $16,500 | |
| Less: equipment deposit | ($15,000) | Deposit on an RF microneedling device; balance financed |
| Less: equipment loan principal | ($9,000) | Three payments on the existing laser loan; interest is already in net income |
| Less: owner distributions | ($30,000) | Includes $12,000 of federal and state estimated tax paid in September |
| Change in cash | ($37,500) | $62,000 opening to $24,500 closing |
Read it top to bottom. The practice did earn $45,000, and operations produced $16,500 of cash, not $45,000, because patients collected $18,000 of treatments they had paid for in May, the refrigerator absorbed $12,000, the insurer took a year's premium up front and the processor held back $5,500 between settlement timing and the reserve. Then $54,000 left for things that are not expenses: a device deposit, loan principal and the owner's distributions, $12,000 of which were her estimated taxes. The P&L was right. The owner's reading of it, "we made $45,000, so I can take $30,000," was wrong, because the $45,000 was partly May's cash and partly the lender's and the distributor's.
What changes once the bridge is on the table: the owner's distributions are set from cash from operations less debt service, which here is $7,500 for the quarter, not from net income. Package cash is moved to a separate account when it arrives and released as treatments are delivered. The stock-up order is sized to the 13-week forecast rather than to the distributor's tier. And the estimated tax payments come from a reserve funded weekly, which is the subject of quarterly estimated taxes for med spa owners.
Finding your own cause
Each cause leaves a different mark on the balance sheet, and each has a different fix. Treating a package-redemption quarter as a pricing problem, or a distribution problem as a timing problem, leads to the wrong decision.
| Cause | Where it shows | The fix |
|---|---|---|
| Package cash spent before delivery | Deferred revenue falling while revenue holds | Hold presale cash in a separate account; release on redemption; set distributions from cash, not profit |
| Inventory build-up | Inventory rising faster than product used | Order to the 13-week forecast; count monthly; question tier buys that exceed two months of use |
| Equipment principal | Loan balances falling; interest small on the P&L | Track EBITDA less debt service as the real operating result; match loan terms to the device's revenue |
| Distributions and estimates | Equity falling by more than net income | Fund a tax reserve weekly; cap draws at trailing free cash |
| Sales tax spent | Sales tax payable larger than the cash set aside | Sweep collected tax to a separate account on close; never a cushion |
| Settlement lag, reserves, chargebacks | Merchant receivable and reserve rising | Forecast net of fees and one business day late; document package terms to defend disputes |
| Commissions on sales, not delivery | Prepaid commissions rising | Pay commission on delivered treatments, accrued monthly |
The companion tool is a weekly cash forecast, which turns the bridge from an explanation of last quarter into a warning about next month; the layout is in a 13-week cash flow forecast for a med spa. The two questions to ask every month, with the P&L and the balance sheet side by side, are: what did deferred revenue do, and what did equity do?
What usually goes wrong
Setting distributions from net income instead of from cash after debt service. Keeping cash-basis books, so the promotion month looks like profit and the redemption months look like failure, and reacting to both. Reading the P&L without a deferred revenue schedule beside it. Treating the December gift card surge as income rather than as a January obligation.
Expensing the device on the tax return and assuming the business is therefore unprofitable, when it is simply paying principal. Spending collected sales tax or the federal payroll deposit in a tight week; the IRS can assess a responsible owner personally for unpaid withholding under the Trust Fund Recovery Penalty. And solving a profit problem with a line of credit, which turns a margin question into a margin question plus interest.
When to get help
If your balance sheet is reconciled every month, you can build the bridge above in half an hour from the two balance sheets and the P&L, and the first time you do it the cause will probably be obvious. If the balance sheet is not reconciled, the bridge will not tie, and the honest answer is that nobody knows where the cash went until the books are cleaned up. In our practice the bridge and the weekly forecast are part of med spa cash flow and bill pay, built from books closed by the tenth business day, so distributions and distributor orders are decided against cash rather than against a bottom line, as the cash flow and bill pay scope added to a Med Spa Core engagement (Core starts at $1,500 a month), or as part of a fractional CFO engagement.
If you have just had the week described at the top of this guide, request a 20-minute fit call and bring the last two quarter-end balance sheets, the P&L for the quarter and your POS outstanding-balance report. That is enough to build the bridge on the call and say which of the seven causes you are looking at.
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Request a 20-Minute Fit Call → Med Spa Cash Flow & Bill Pay →Frequently asked questions
Can a med spa be profitable and still run out of cash?
Yes, and it is common in the quarter after a large package promotion. The cash arrived when the packages were sold and was spent; the treatments are delivered later with provider pay and product cost but no new receipts. Add device loan principal, a stock-up order and owner distributions sized to the profit figure, and a profitable quarter can end with a smaller bank balance than it started with.
Which report explains the difference between my profit and my bank balance?
The statement of cash flows, or a simplified bridge built from it: net income, plus depreciation, plus or minus the change in each balance sheet account, less equipment purchases, loan principal and distributions. The result must equal the change in cash. For a med spa the deferred revenue line and the inventory line usually explain most of the gap, with distributions explaining the rest.
Are my estimated tax payments a business expense?
Not for an S corporation, partnership or single-member LLC. The income tax belongs to the owner, so payments made from the business account are distributions recorded in equity, not expenses on the P&L. That is one reason a pass-through practice can show a profit that the owner never sees in the bank: the profit was taxed, and the tax was paid from the same account.
Is the loan payment on my laser an expense?
Only the interest portion. The principal reduces the loan balance on the balance sheet and never appears on the P&L. The laser itself is a fixed asset that reaches the P&L through depreciation over its useful life, even if the tax return deducts it in full in year one under Section 179 or bonus depreciation. A practice with several financed devices can show a healthy EBITDA margin and send a large share of it to lenders.
Should I keep package money in a separate account?
In our experience, yes. Move the presale cash to a separate account when it settles and release it to operating as treatments are delivered, in step with the deferred revenue rollforward from your POS. The operating balance then shows what is yours, and distribution and ordering decisions are made against the real number instead of against patients' prepayments.
How should I decide how much to take as a distribution?
From cash from operations less debt service, read from the bridge, not from net income. In the illustrative quarter that figure was $7,500 against a $45,000 profit. Fund your estimated taxes from a reserve built weekly, keep presale cash separate, and cap draws at the trailing free cash the practice has actually produced.
Sources
- IRS — Publication 538, Accounting Periods and Methods (cash vs. accrual; advance payments)
- IRS — Publication 946, How To Depreciate Property
- IRS — Rev. Proc. 2025-32 (2026 Section 179 limits)
- IRS — 2026 Form 1040-ES, Estimated Tax for Individuals
- IRS — Employment taxes and the Trust Fund Recovery Penalty (TFRP)
- AmSpa — Sales tax in your medical spa
Related guides
- A 13-Week Cash Flow Forecast for a Med Spa: Template Logic and Worked Example
- How Should a Med Spa Account for Memberships, Packages, and Gift Cards?
- Med Spa Inventory Accounting for Injectables, Supplies, and Retail Products
- How a Med Spa Owner Should Pay Themselves: Salary, Draws and Distributions
- How to Read a Med Spa P&L: Service Lines, Provider Pay and Product Cost
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.
