Profit But No Cash in a Dental Practice (Where the Money Actually Goes)
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"My P&L Looks Great. Where Is the Cash?"
This is one of the most common questions I hear from dental practice owners, especially in years two through five of practice ownership. The profit and loss statement says the practice made money. The bank account does not agree. The owner is taking modest draws, paying staff on time, and still wondering why next month's payroll feels tight.
This is one of the most common, and most underrated, problems in dental practice ownership. The numbers on the P&L are not lying, and the cash situation is not your imagination. They are just measuring different things. Once you can see where the gap comes from, you can stop guessing about it and start fixing it.
For the broader version of this concept (across all small businesses), our post on why your business shows profit but you're always short on cash covers the general dynamics. This post is for dental practice owners specifically, because the cash leaks in dental are predictable and worth naming directly.
The Five Specific Places Dental Cash Goes
Almost every dental practice with a "profit but no cash" problem has the money going to one or more of these five places. Often several at once.
1. Insurance Reimbursement Lag
The single largest cash drain in most dental practices is the time between treatment and payment.
A crown placed today gets billed today. The insurance EOB might post in 14 to 45 days. Patient portion gets billed after the EOB. Patient pays in another 30 to 60 days, or not at all without follow up. The full cash cycle on a single crown can easily run 60 to 90 days from chair time to collected cash.
Meanwhile, the lab bill for that crown shows up in 30 days. Payroll for the staff who helped place it ran the same week. Supplies were consumed at the appointment. The cash going out is faster than the cash coming in.
This is the classic timing problem. On the P&L, the revenue is recognized at the time of service. On the bank account, the revenue is recognized when the money actually arrives. Profitable dental practices are routinely cash poor for this reason alone.
2. Equipment Financing and Lease Payments
The principal portion of a loan or equipment lease payment is not an expense on the P&L. It is a balance sheet item (reducing the loan liability). But it absolutely shows up in the bank account.
A dental practice with $20,000 of monthly equipment loan and operatory build out payments is moving $20,000 of real cash out of the practice every month that does not appear as an expense on the P&L. If the practice's net income is $25,000 per month, the cash available after debt service is $5,000, not $25,000.
This is one of the most commonly missed reasons that profitable practices feel cash poor. The P&L looks healthy because the interest expense is small. The cash impact is much larger because the principal is also leaving the account.
3. Supply and Lab Inventory
Many practices keep significant inventory on the shelf in operatory consumables, lab cases in process, and implant components. If the inventory level is growing year over year, that growth is cash going out of the bank account that is not appearing as an expense on the P&L.
The P&L records inventory as an expense when it is used (consumed in patient care or sold to the patient). The bank account records inventory as a cash outflow when it is purchased from the supplier. A practice that grew operatory supply inventory by $15,000 across the year had $15,000 of cash leaving the bank that the P&L does not show as an expense.
4. Owner Draws and Distributions
This is the one owners usually understand intuitively, but it still bears mentioning.
For sole proprietors and default LLCs, owner draws do not appear as expenses on the P&L. They are reductions of owner equity on the balance sheet. The practice can show $300,000 of annual net income on the P&L and still feel cash poor if the owner is drawing $250,000 per year for personal expenses.
For S corporation owners, salary appears on the P&L (because it runs through payroll), but distributions do not. Distributions reduce equity, just like draws for a sole proprietor. The practice can show profit after paying the owner's salary and still feel cash poor because the owner is also taking large distributions.
5. Tax Payments Made Personally
For pass through entities (sole proprietorships, default LLCs, S corporations), the practice's income passes through to the owner's personal tax return. The owner pays the federal income tax on the practice's income, but the tax payment usually comes from the owner's personal account, which is funded by distributions from the practice.
If the owner is distributing enough to cover personal taxes plus personal living expenses, the practice's cash account drops by the full amount even though the tax expense does not appear on the practice P&L. (S corp salary withholding does appear on the P&L, but the owner's personal tax bill above and beyond withholding usually comes from distributions.)
How to Tell Which One Is Hurting You
The diagnosis depends on which of the five categories is the dominant leak.
Insurance Lag Tells
- Aged accounts receivable balance has grown
- Insurance receivable has grown
- Patient receivable has grown
- Total A/R as a percentage of monthly production is increasing
- Days in A/R metric is climbing
If A/R is climbing month over month, the cash is going into A/R. The treatment was performed, but the cash has not been collected.
Equipment Debt Tells
- The practice has multiple equipment loans, build out loans, or working capital loans active at the same time
- The total monthly debt service is large relative to net income
- The interest expense on the P&L is small relative to total debt payments
If debt service is large, the cash is going to lenders. The way to confirm this is to compare net income to net cash flow from operations on the statement of cash flows (a report your bookkeeper can produce in QuickBooks or in your practice's accounting system).
Inventory Buildup Tells
- The balance sheet shows growing supply inventory or implant inventory
- The practice owner has been "stocking up" or buying ahead
- Distributor invoices are larger than usage suggests
If inventory is growing, the cash is on the shelf as physical product.
Owner Draw Tells
- Owner takes irregular but large draws
- Owner draws are not synchronized with practice profit cycles
- Owner draws include personal lifestyle expenses that have ramped up
If the cash leak matches the owner's draw history, the leak is owner spending. This is the most common single cause in newer practices.
Tax Payment Tells
- Estimated tax payments hit the personal account around the April 15, June 15, September 15, and January 15 dates
- The personal cash crunch matches those dates
If your personal account is fine after distributions until quarterly tax dates, the cash leak is tax payments that the practice distribution is funding.
What to Actually Do About It
The fix depends on the diagnosis.
For Insurance Lag
- Tighten the front office insurance verification and pre treatment estimate process
- Collect patient portion at the time of service, not after the EOB
- Follow up on aged receivables weekly, not monthly
- Consider whether your billing system or outsourced biller is performing at the level the practice needs
The A/R problem is rarely fixed by working harder on the patient side. It is usually fixed by tightening the system that runs the front office.
For Equipment Debt
- Map the debt schedule (what loans exist, what is owed on each, what the monthly payment is, when each ends)
- Identify any debt that can be refinanced to lower the payment
- Consider whether the practice can accelerate payoff of higher interest debt while still leaving enough cash buffer
This is one of the cases where the fix is structural and takes time. The cash relief comes when loans pay off, not when the P&L improves.
For Inventory Buildup
- Count operatory inventory periodically
- Track inventory turnover and aim for tighter management
- Stop the "stocking up" pattern unless there is a real shortage risk
For Owner Draws
- Set a regular draw schedule that matches what the practice can sustainably produce
- Stop the irregular large draws unless there is a real reason for them
- Separate personal lifestyle decisions from practice cash flow planning
This is usually the most uncomfortable conversation but the most important one.
For Tax Payments
- Set aside the estimated tax payment amount in a separate account as distributions are taken throughout the year
- Plan quarterly distributions that fund both personal living expenses and tax payments
Our post on quarterly estimated taxes for high income professional practice owners covers the timing in more detail.
Frequently Asked Questions
My P&L shows $25,000 of monthly profit but the bank is at zero. Where is the money?
One or more of the five places above. The diagnostic is to look at the balance sheet alongside the P&L. The P&L tells you what was earned. The balance sheet tells you what happened to the cash.
Is my bookkeeping wrong?
Maybe, but probably not. The most common pattern is correct bookkeeping that the owner is interpreting incorrectly. Profit is not cash. They are different measurements.
How long does the insurance lag usually take to fix?
Months, not weeks. Tightening the front office process changes the new cases that come through, not the existing A/R. The A/R balance shrinks as old cases collect and new cases are billed correctly. Expect three to six months to see meaningful improvement.
Should I just take out a line of credit to cover the gap?
Sometimes useful as a short term bridge, but a line of credit does not fix the underlying problem. If the practice is producing cash and the leak is real (debt service, inventory buildup, owner draws), borrowing more does not solve it.
What is the right cash buffer for a dental practice?
Depends on the practice, but a common rule of thumb is 30 to 60 days of operating expenses held in cash. Practices with more variable revenue (heavy reliance on a single PPO contract, for example) benefit from a larger buffer.
Should I switch to cash basis accounting to simplify this?
Cash basis accounting can make the P&L look more like the bank account, but it changes how taxes work and it makes the practice harder to manage strategically. Most growing dental practices benefit from accrual basis for management decisions even if they use cash basis for tax purposes. Talk to your tax advisor about which method makes sense for your practice.
Getting Your Dental Practice Cash Flow Under Control
The "profit but no cash" problem feels mysterious from the inside. Once you can see where the cash is actually going (insurance lag, equipment debt, inventory, owner draws, tax payments), the problem becomes manageable. The fix is usually some combination of tightening the A/R process, mapping the debt schedule, controlling inventory growth, and setting realistic owner draws and tax reserve.
If you also want the broader version of this concept across all small businesses, our post on why your business shows profit but you're always short on cash covers the general dynamics. If you want the employment side cleaned up too, our payroll for a dental practice in Texas guide covers the staff side.
We work with dental practice owners across Quinlan, Hunt County, Rockwall, Kaufman, and the greater Dallas area on bookkeeping, cash flow analysis, and the broader tax planning that goes with running a practice.
Tired of the "where is the cash" question? Contact us here to talk about getting your books set up so you can see cash flow clearly month over month.