Why Dental Practice Bookkeeping Is Different
Dental practices aren't just healthcare businesses — they're complex commercial operations with a unique mix of exempt and taxable services, multiple revenue streams, contractor vs. employee relationships, and professional corporation structures. Generic bookkeeping misses most of this nuance.
The biggest and most costly bookkeeping mistakes in dental practices come down to three areas: HST classification errors, associate dentist misclassification, and lab fee tracking. All three have direct CRA exposure.
HST on Dental Services: Exempt vs. Taxable
Under Schedule V, Part II of Canada's Excise Tax Act, most dental services are zero-rated or exempt from HST/GST. This means you do not charge HST on the vast majority of dental procedures.
HST-Exempt Dental Services - Examinations and consultations - Fillings and restorations - Extractions and oral surgery - Root canals and endodontics - Periodontal treatment - Orthodontics (braces, aligners — including Invisalign for occlusal correction) - Dentures and prosthodontic appliances for dental health purposes - Most diagnostic imaging (X-rays, CBCT)
HST-Taxable Dental Services - **Teeth whitening** (in-office or take-home trays for purely cosmetic purposes) - **Cosmetic veneers** (applied for aesthetic reasons only, not structural) - Certain elective cosmetic procedures with no medical/functional basis
The key test is purpose: if a procedure is performed to maintain or restore dental health, it's generally exempt. If it's purely cosmetic with no therapeutic component, it's taxable.
Common error: Some practices charge HST on all services or apply inconsistent rules. CRA spot audits dental practices and dental labs specifically because of this complexity. A bookkeeper who doesn't understand Schedule V will create compliance exposure.
Associate Dentist Arrangements: The CRA Trap
Hiring associate dentists as independent contractors (rather than employees) is common in dentistry — and heavily scrutinized by CRA.
What Makes an Associate a Contractor (vs. Employee)? CRA uses a multi-factor test: - **Control**: Does the associate set their own hours? Can they work at other clinics? - **Tools**: Does the associate provide their own equipment, or use the clinic's? - **Financial risk**: Can the associate profit or lose money independently? - **Integration**: Is the associate's work central to the clinic's business?
In many associate arrangements, the clinic owner controls the schedule, provides all equipment, and the associate works exclusively at one location. CRA often reclassifies these as employment — triggering retroactive CPP (employer + employee share), EI premiums, income tax remittances, plus interest and penalties.
What to Do - Issue **T4A slips** to all associates paid as contractors (required if annual payments exceed $500) - Document the contractor relationship in a written agreement - Allow genuine flexibility: associates should be free to work elsewhere - Have associates provide some of their own supplies or instruments - Review your arrangement with a CPA if you have any doubt
We help dental practices document and structure associate relationships correctly, and issue T4A slips accurately every February.
Equipment and Leasehold Improvements: CCA Classes
Dental practices are capital-intensive. CCA (Capital Cost Allowance) classes for common dental equipment:
| Asset | CCA Class | Annual Rate |
|---|---|---|
| Dental chairs, delivery units, lights | Class 8 | 20% |
| X-ray machines and CBCT units | Class 8 | 20% |
| Autoclave and sterilization equipment | Class 8 | 20% |
| Computer hardware and workstations | Class 10 / 50 | 30% / 100% |
| Practice management software | Class 12 | 100% |
| Leasehold improvements | Class 13 | Straight-line over lease term |
| Building (if owned) | Class 1 | 4% |
The half-year rule applies in the year of purchase — you can only claim 50% of the normal CCA in the first year. For large equipment purchases, the exact timing of acquisition affects your tax year significantly.
Lab Fees: Cost of Goods, Not an Expense
Lab fees are paid to external dental labs for crowns, bridges, dentures, implant abutments, and other fabricated appliances. These are a direct cost of service — they should be recorded as Cost of Goods Sold (COGS), not lumped into general operating expenses.
Why it matters: Recording lab fees as COGS lets you calculate your true gross margin by procedure type. A crown that brings in $1,800 in revenue but costs $350 in lab fees has a different margin than a $1,800 filling with zero lab cost. Without this distinction, your income statement tells you very little about procedure profitability.
Correct setup in QuickBooks or Xero: - Revenue account: Procedure revenue (or by category: restorative, prosthodontic, orthodontic) - COGS account: Dental lab fees - Operating expense: All other clinic costs (rent, staff, supplies, etc.)
Reconciling Your Dental Software to Your Books
Most dental practices use software like Dentrix, Dentimax, Cleardent, or ABELDent to track appointments, treatment plans, billing, and collections. These systems generate daily production and collection reports.
Your bookkeeper should reconcile these reports to your bank deposits every month: - Daily production report: What procedures were performed and billed (accounts receivable increase) - Daily collections report: What payments were received (cash, credit card, insurance EFT) - Bank deposit: What actually landed in your bank account
Gaps between your collections report and bank deposits indicate undeposited payments, credit card batch errors, or fraud — all of which need to be caught monthly, not at year-end.
Dental Professional Corporations (DPCs)
A Dental Professional Corporation (DPC) is available to licensed dentists in Ontario, BC, Alberta, and most other provinces. The key tax advantages:
- ●Small Business Deduction (SBD): Corporate income up to $500,000 is taxed at ~12% federally (vs. 53%+ personal marginal rate in Ontario at high incomes)
- ●Income splitting: Paying dividends to family shareholders in lower tax brackets (subject to TOSI rules)
- ●Tax-deferred investing: Leaving retained earnings in the corporation to invest grows faster than investing after-tax personal income
DPC bookkeeping adds: - Separate corporate books for the DPC entity - Management fee agreements between the dentist personally and the DPC - Dividend declaration tracking - Shareholder loan reconciliation - Investment portfolio tracking (if holding investments inside the corp) - Annual corporate tax return (T2) preparation support
Monthly Bookkeeping Checklist for Dental Practices
A complete monthly close for a dental practice includes: - Reconcile dental software production and collections to bank deposits - Categorize all expenses (with proper COGS separation for lab fees) - Reconcile all credit card and bank statements - Process and record associate dentist payments + T4A tracking - Record payroll for hygienists and administrative staff - Reconcile any insurance EFT deposits (Blue Cross, Sun Life, etc.) - Track equipment purchases and update CCA schedule - Prepare monthly Profit & Loss with procedure-level margin analysis - Prepare Balance Sheet and review accounts receivable aging
At [Outsource Bookkeeping](/), we specialize in dental practice bookkeeping across Ontario and British Columbia. We understand DPC structures, HST-exempt classification, associate compliance, and dental software reconciliation. Our service starts at $500/month, with CPA-ready financials delivered by the 10th every month.
[Book a free consultation](/contact) to discuss your practice's bookkeeping needs — we'll review your current books at no cost.
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