Summary
Medical clinics don't keep books like other small businesses. Revenue arrives from provincial health plans, patients, insurers and allied health providers, some of it exempt from GST/HST and some taxable, while physicians, staff and a clinic company all share the costs. Specialized bookkeeping reconciles every billing stream, applies the right sales tax, allocates input tax credits, produces fair overhead statements and keeps your CRA business number accounts current. This guide shows Canadian clinic founders what that involves, with a free overhead and HST calculator.
Physicians, nurse practitioners and health entrepreneurs are opening clinics across Canada, from family health teams and walk-in clinics to specialist practices, diagnostic centres and multidisciplinary wellness clinics. Most founders are excellent clinicians. Few trained as accountants, and the clinic's finances quickly grow more complicated than expected.
A typical clinic collects money from OHIP or another provincial plan, from patients for uninsured services, from insurers and lawyers for reports, and from physicians and allied health practitioners who pay overhead or rent. Each stream has its own timing, reconciliation and tax treatment. Getting one wrong can mean unclaimed billings, unpaid HST, disputes between partners or a surprise at year-end.
Ledgerive's bookkeeping services are built for this complexity. We set up clinic-specific charts of accounts, reconcile billing remittances to the bank, and give founders clear monthly reports that separate the clinic company's results from each physician's practice.
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1. Why Clinics Need Specialized Bookkeeping
Physician practices are significant businesses. CIHI reports an average gross clinical payment of $369,000 per physician in 2022–2023, before overhead. With 71% of payments made fee-for-service, every rejected or unbilled claim is lost revenue, and someone has to catch it.
Growth is also accelerating. Ontario's Primary Care Action Plan aims to connect everyone in the province to primary care by 2029, funding roughly 300 new and expanded primary care teams. About 2 million Ontarians who want primary care still need to be connected, so new and expanding clinics will need investor-grade books.
2. How Clinic Money Flows: Common Structures
Before any bookkeeping is set up, founders need to know which entity earns what. Most Canadian clinics use one of the structures below, and the books must mirror the structure exactly.
| Structure | How it works | Bookkeeping focus |
|---|---|---|
| Solo physician practice | One physician, often through a medical professional corporation | Billing reconciliation, expenses, salary and dividends |
| Overhead-sharing clinic | A clinic company provides space and staff; physicians pay a percentage of billings or a fixed fee | Accurate overhead statements, possible GST/HST on fees |
| Cost-sharing arrangement | Physicians split actual clinic costs by an agreed formula | Cost allocation, monthly true-up, partner reporting |
| Multidisciplinary clinic | Physicians plus physiotherapists, dietitians, psychologists or cosmetic services | Mixed exempt and taxable revenue, ITC allocation |
| Founder-owned clinic company | A non-physician or investor owns the clinic business and contracts with practitioners | Practitioner payments, regulatory limits, investor reporting |
Physicians in Ontario usually practise through a medical professional corporation, which needs a certificate of authorization from the College of Physicians and Surgeons of Ontario. Other provinces have their own rules. Your bookkeeper should keep each physician's corporation completely separate from the clinic company's books, with intercompany charges documented.
3. Revenue Streams and GST/HST Treatment
This is where clinics most often go wrong. Health care services covered by a provincial plan, and other services provided to maintain, restore or prevent health, are generally exempt. Since the 2013 federal budget, however, many reports and forms prepared for non-health purposes can be taxable, and purely cosmetic services are generally taxable too.
| Revenue stream | Usual GST/HST treatment | Bookkeeping note |
|---|---|---|
| Provincial plan billings (OHIP, MSP, AHCIP, RAMQ) | Exempt | Reconcile each remittance advice to billings |
| Uninsured medically necessary services | Generally exempt | Track patient invoices and receipts |
| Medico-legal, insurance and some third-party reports | Often taxable | Separate revenue account with HST code |
| Purely cosmetic procedures | Taxable | 13% HST in Ontario |
| Products sold to patients | Usually taxable (some medical devices zero-rated) | Inventory and POS tax codes |
| Overhead or rent charged to practitioners | May be taxable, depending on structure | Get the structure reviewed before charging |
- Small supplier test: once taxable revenue passes $30,000 over four consecutive calendar quarters, the clinic must register and collect GST/HST.
- Input tax credits: HST paid on costs used for exempt services is generally not recoverable. Mixed clinics must allocate HST paid using a reasonable method, such as revenue or floor space.
- Overhead charges: physicians making exempt supplies can't recover HST charged to them, so the structure of overhead fees directly affects what each physician really pays.
4. What Specialized Clinic Bookkeeping Includes
| Service | What we do | Why it matters |
|---|---|---|
| Billing reconciliation | Match EMR billings to provincial remittance advice and bank deposits | Finds rejected and unpaid claims |
| Uninsured revenue | Record patient, insurer and third-party invoices and receivables | Collects revenue clinics often forget |
| GST/HST coding | Assign tax codes by service; prepare returns and ITC allocations | Avoids under-collection and over-claiming |
| Physician overhead statements | Monthly statements per physician with billings, overhead and balances | Prevents partner disputes |
| Payroll | Staff payroll, remittances, vacation pay, T4s and ROEs | Avoids CRA penalties |
| Monthly reporting | P&L by entity, balance sheet, cash flow and KPIs | Founders see the clinic's real performance |
Many founders also want forward-looking support once the books are clean. Our fractional CFO services add budgeting, physician recruitment models and expansion planning. We tailor this work by industry, much as we do for hospitality in our guide to fractional CFO services for restaurants in Vaughan.
5. Interactive Clinic Overhead and HST Calculator
Check whether your overhead model covers clinic costs, and whether taxable services push you over the GST/HST registration threshold. All results are illustrative.
6. Founder Setup Checklist and BN Registration
Clean books start with the right registrations. Your nine-digit CRA business number identifies the clinic company with the CRA, and each tax obligation runs through a program account under it.
- Choose the structure: clinic company, medical professional corporation or both, with a lawyer and accountant.
- BN registration: obtain a business number for each corporation as soon as it is formed.
- GST/HST (RT) account: register before taxable revenue crosses $30,000, or voluntarily if the clinic will make significant taxable supplies.
- Payroll (RP) account: open before your first receptionist, nurse or office manager is paid.
- Corporate tax (RC) account: file T2 returns and instalments under the same CRA business number.
- Banking: separate accounts for the clinic company and each physician corporation.
- Systems: connect the EMR, payment processor and accounting software, with a clinic-specific chart of accounts.
7. Financing a New or Expanding Clinic
Clinic build-outs are expensive: exam rooms, plumbing, accessibility upgrades, medical equipment and IT. Lenders will want a business plan, a monthly forecast and, for existing practices, clean historical statements.
- Government-backed loans: leasehold improvements and equipment are often financed through the Canada Small Business Financing Program; see our CSBFP loan package checklist.
- Franchise and licensed clinic brands: some physiotherapy, wellness and diagnostic brands are franchised; review fees and disclosure with our franchise purchase planning checklist.
- Business plans and models: Ledgerive's business plan services and financial modeling services build lender-ready plans with physician ramp-up, overhead and patient volume assumptions.
8. Monthly Close Calendar for Clinics
| When | Task |
|---|---|
| Weekly | Record uninsured invoices, chase third-party receivables, file receipts |
| Each payroll | Run staff payroll and schedule the source deduction remittance |
| On each remittance advice | Reconcile provincial plan payments to billings; resubmit rejected claims |
| Month-end | Reconcile bank, card and processor accounts; post intercompany charges |
| Month-end | Issue physician overhead statements and review clinic P&L |
| Quarterly or annually | File GST/HST with ITC allocation, review instalments, prepare year-end files |
9. Common Clinic Bookkeeping Mistakes
- Depositing billings without reconciling them, so rejected claims are never resubmitted.
- Treating all revenue as exempt and missing HST on cosmetic services, reports or product sales.
- Claiming full input tax credits on costs that support exempt health care services.
- Mixing physician and clinic money in one bank account, making overhead disputes hard to settle.
- Overhead rates that never change while rent, wages and EMR costs rise every year.
- Late payroll remittances and other general errors covered in our guide to bookkeeping mistakes business owners keep making in Ottawa.
10. Frequently Asked Questions
Do medical clinics charge GST/HST in Canada?
Most services covered by a provincial health plan, and other services provided to maintain, restore or prevent health, are exempt from GST/HST. Some clinic revenue can be taxable, including purely cosmetic procedures, many medico-legal and insurance reports, some third-party forms and products sold to patients. A clinic must register for GST/HST once its taxable sales exceed $30,000 over four consecutive calendar quarters.
What is a medical professional corporation?
A medical professional corporation is a corporation through which a physician practises medicine. In Ontario it needs a certificate of authorization from the College of Physicians and Surgeons of Ontario, voting shares must be held by physicians, and certain family members may hold non-voting shares. Incorporation can give access to the small business tax rate, but rules such as the tax on split income limit income splitting.
Can a medical clinic claim input tax credits?
A clinic can only claim input tax credits on GST/HST paid for costs used to make taxable supplies. Costs used to provide exempt health care services generally do not qualify, so clinics with both exempt and taxable revenue must allocate their HST paid between the two, usually by a reasonable method such as revenue or floor space.
What overhead percentage do doctors pay a clinic?
Overhead arrangements vary widely by specialty, location and the services a clinic provides. Many physicians pay a percentage of their billings, a fixed monthly fee or a mix of both to cover staff, rent, the electronic medical record and supplies. The right rate is the one that covers the clinic's real costs, which is why monthly overhead statements matter.
What does a medical clinic bookkeeper do?
A medical clinic bookkeeper reconciles provincial health plan payments to billings, tracks rejected claims, records uninsured and allied health revenue, applies the correct GST/HST treatment to each revenue stream, runs staff payroll, prepares physician overhead statements, reconciles bank and card accounts every month and prepares year-end files for the clinic's accountant.
Summary
Medical clinics combine exempt provincial billings, taxable services, physician overhead and staff payroll, so generic bookkeeping often misses revenue or misstates HST. Specialized clinic bookkeeping reconciles every remittance, codes each revenue stream correctly, allocates input tax credits, issues fair overhead statements and keeps CRA business number accounts current. With new clinics opening across Canada, founders who start with clean, structured books grow faster and borrow more easily.
Get clinic books you can trust
Ledgerive provides specialized bookkeeping for medical, family practice, specialist and multidisciplinary clinics across Canada. Book a free 30-minute call or reach us directly.
Sources: CIHI, A Profile of Physicians in Canada; Ontario's Primary Care Action Plan, October 2026 progress update; BDO, GST/HST registration for medical practitioners. GST/HST treatments are general and should be confirmed for your clinic; calculator results are illustrative.