What most dental practice owners do not know about their own numbers
Ask a dental practice owner how much each of their associate dentists or contractors costs the business per year. Ask them how much gross profit the practice generates from each practitioner. Ask them whether they know, at any given month end, which parts of the practice are performing and which are not.
Most cannot answer these questions accurately. Not because they are not interested in the answers — every practice owner is interested in those answers — but because the bookkeeping has not been set up to surface that information. The accounts record income and expenses in aggregate. The profit and loss shows a total. The individual performance data that would allow a practice owner to make genuinely informed decisions about staffing, contractor arrangements, and clinical capacity is buried in transactions that have never been separately coded.
One of my dental practice clients has a different experience. Every month, his accounts give him a clear picture of what each contractor is costing the practice and what each practitioner is generating in revenue. That visibility does not come from a separate reporting tool or a complicated analytics platform. It comes from the way the bookkeeping is maintained, month by month, as a deliberate part of the service.
A profit and loss statement that shows total income and total expenses tells a practice owner whether the business is profitable.
It does not tell them which practitioners are profitable, which contractors are costing more than they should, or where the business should be investing and where it should be cutting.
That level of insight requires bookkeeping that codes to that level of detail.
Tracking lab fees and contractor costs by individual
This dental practice operates with three contractors who each generate lab fees as part of their clinical work. Lab fees are a direct cost of the procedures those practitioners perform, and the total lab fee expense sitting in the accounts as a single line item tells the practice owner very little about which contractor is generating which cost.
Each month, the practice owner sends through a breakdown of the total lab fees attributable to each of the three contractors. When that information arrives, the lab fees that have been coded to the general Other Lab Fees account in the profit and loss are recoded to individual accounts for each contractor. This is not a complicated process, but it is a deliberate one that requires the information to arrive from the practice, the recoding to be applied correctly, and the chart of accounts to be structured to accommodate the breakdown.
The result is a profit and loss statement where the lab fee expense is visible at the individual contractor level, not just as an aggregate. At any point in the year, the practice owner can see exactly how much each contractor has cost the practice in lab fees in the current month, the current quarter, and the year to date. Across twelve months, that visibility builds into a complete picture of each contractor’s cost profile that simply did not exist before the recoding process was put in place.
A contractor arrangement in a dental practice involves two financial flows: what the contractor generates in revenue and what they cost in lab fees and other direct costs.
Understanding the net position of each arrangement requires both numbers to be visible and comparable. If the lab fees are sitting in a single aggregate account, half of that picture is missing.
Per-practitioner revenue reporting and gross profit by doctor
The other piece of monthly information the practice owner provides is a breakdown of income received from patients, allocated by practitioner. Each doctor on the practice’s roster sees patients and generates revenue, and the total revenue figure in the accounts does not distinguish between them.
Each month, the per-practitioner income data provided by the practice owner is used to recode the revenue in the accounts so that income is allocated to each practitioner individually rather than sitting in a single income account. When this is combined with the contractor-level lab fee coding described above, the profit and loss begins to show something genuinely useful: the gross profit generated by each practitioner, calculated as the revenue they produced less the lab fees directly attributable to their work.
This is the number that matters for evaluating the commercial contribution of each practitioner to the practice. A practitioner who generates high revenue but also generates high lab fees may contribute less gross profit than a practitioner with lower revenue and minimal lab costs. Without the recoding process, both practitioners look the same in the accounts — their revenue is in the same income account and their lab fees are in the same expense account. With the recoding in place, the practice owner can see the distinction clearly and make decisions about clinical capacity, contractor terms, and practitioner development from a position of actual financial knowledge rather than guesswork.
Gross profit by practitioner is one of the most commercially useful numbers a dental practice can track, and one of the least commonly available because most practice bookkeeping does not code to that level of detail.
The methodology is not complex. It requires the right information from the practice and the willingness to apply it consistently every month.
Getting the GST right on dental supply invoices
The second area of specific discipline in this practice’s bookkeeping relates to the supply invoices that arrive regularly from dental product suppliers. Dental supplies are not uniformly GST-free, and they are not uniformly taxable. A single invoice from a dental supplier can contain items that carry GST alongside items that do not, and the correct coding requires the two to be separated rather than the entire invoice being coded with a single GST treatment.
In Australia, therapeutic goods including prescription medicines and certain medical and dental products listed on the Therapeutic Goods Administration register are GST-free supplies. Other dental products, including many practice consumables, equipment components, and non-therapeutic items, are standard taxable supplies that attract GST at ten percent. A dental supply invoice that contains both categories must be split at the line item level, with GST-free items coded to a GST-free expense account and taxable items coded with the GST treatment that allows the input tax credit to be claimed correctly on the BAS.
If a supply invoice is coded entirely as GST-free when some of its items carry GST, the practice is forfeiting input tax credits it is entitled to claim. If it is coded entirely as taxable when some items are GST-free, the practice is overclaiming input tax credits that do not exist, which produces an incorrect BAS position that can be identified and challenged by the ATO. Neither error is dramatic in any individual invoice, but for a practice that receives multiple supply invoices every month, the cumulative effect of systematic miscoding across a full year is material.
Every supply invoice for this client is reviewed at the line item level. Items that are GST-free are coded as such. Items that carry GST are coded with the correct taxable treatment. The BAS figures that result from this process reflect the actual input tax credit entitlement of the practice rather than an approximation based on whichever GST treatment was applied most recently or most conveniently.
A dental supply invoice that mixes GST and GST-free items is not a problem to be managed by choosing one GST treatment and applying it to the whole invoice.
It is an instruction to code two different things differently.
The input tax credit position on the BAS depends on that distinction being applied correctly every time.
Why this level of bookkeeping matters for a dental practice owner
The two areas of work described in this article are not unusual services. They are the kind of bookkeeping disciplines that any practice with contractors, multiple practitioners, and complex supply invoices should have in place. What is unusual is that most practices do not have them in place, because most bookkeeping arrangements are scoped around transaction entry and bank reconciliation rather than around the management information the practice owner actually needs to run the business well.
A dental practice principal is a clinician first. The time available for financial management is limited and typically focused on the annual tax return and the quarterly BAS. The detailed, month-by-month financial picture that would inform decisions about contractor arrangements, practitioner capacity, and cost management does not get built unless someone is maintaining the accounts with that goal explicitly in mind.
For this client, the monthly recoding of lab fees and per-practitioner revenue means that at every point in the year, the financial picture of the practice reflects not just what the business earned and spent in aggregate, but which parts of the business are contributing to that result and at what cost. That information does not change what the practice does clinically. It changes how confidently and accurately the practice owner can make decisions about the business behind the clinical work.
- Contractor cost visibility means the practice owner knows what each arrangement is actually costing before renewing, renegotiating or expanding it.
- Per-practitioner gross profit means clinical capacity decisions are made on financial evidence rather than on an assumption that more practitioners always means more profit.
- Correct GST coding on supply invoices means the BAS reflects the practice’s actual input tax credit entitlement and not an approximation that the ATO can challenge.
- All of this is produced from the same accounting software the practice is already using, maintained by a bookkeeper who understands what the practice owner needs to see and builds the records to show it.
