Launch a Dentist Office in Longueuil: Start Today
This page helps aspiring dental practice owners open a Dentist Office in Longueuil (NAICS 621210). Get a clear overview of the 10 essential requirements, from licensing and permits to business setup and startup costs, with practical, step-by-step guidance to get your clinic up and running.
You’ll learn the ten key requirements you'll need to meet, including securing your dental license with the Ordre des dentistes du Québec, registering the business, choosing a compliant location, and obtaining municipal, fire, and accessibility permits. We outline the main startup costs—equipment and chairs, lease, insurance, and licensing fees—and share a realistic timeline from planning to first patient.
Longueuil’s growing population and proximity to Montreal create steady demand for dental care. The city’s welcoming business climate makes it a smart place to launch a new dentist office, with strong community health resources to support your practice.
Requirements Overview
The most critical requirement for operating a dental office in Longueuil is Controlled Drugs and Substances Authorization. This authorization is legally required if your practice handles, stores, or dispenses medications classified as controlled substances. You cannot legally open or run the clinic without it. This is non-negotiable, and securing this authorization should be your first step before hiring staff or leasing space.
Mandatory operational requirements cover health, safety, and local permits. You will need a valid City of Longueuil Business Licence to operate a clinic, and you must register with Quebec's CNESST as an employer to provide workers’ compensation coverage. If you have partners or plan to hire, align payroll processes so you can handle payroll deductions and remittances legally and on time.
Business registration and tax numbers are next. You’ll obtain a federal Business Number (BN) for tax accounts, plus the Quebec Enterprise Number (NEQ). Register your business with the Quebec Registraire des entreprises (REQ). If your turnover crosses thresholds, you’ll also register for GST/HST. Depending on your structure, you may register as a partnership or form a Quebec corporation.
Next steps: map out a realistic timeline, gather documents (licences, lease, insurance, and credentials), and reach out to the appropriate agencies or a local advisor to help with the registrations. With a clear plan and the right registrations in place, you’ll be on solid footing to open your Longueuil dental office. If you’d like, I can turn this into a simple, prioritized checklist tailored to your situation.
Detailed Requirements
Here are the specific requirements for starting a offices of dentists in Longueuil:
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Business Number (BN) Registration RequiredA 9-digit Business Number is required for most businesses operating in Canada. It is used to interact with the Canada Revenue Agency and other federal programs. Required for GST/HST, payroll, corporation income tax, and import/export accounts. Register FREE online through Business Registration Online (BRO) at canada.ca. Takes 15-30 minutes. As of November 3, 2025, online registration is MANDATORY for new BNs - phone registration no longer available. You'll need: business name, address, owner SIN, business type, and start date. BN (9-digit number) issued INSTANTLY online. Available 21 hours/day, 7 days/week (closed 3-6am ET for maintenance).
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Controlled Drugs and Substances Authorization RequiredHealthcare practitioners and facilities handling controlled substances (narcotics, benzodiazepines) must be authorized and licensed under federal regulations. Includes secure storage, record-keeping, and reporting requirements. Health Canada Controlled Drugs and Substances Act (CDSA) authorization. Dealer license for controlled substances. Pharmacies: provincial licensing. Hospitals: authorization. Narcotics: strict requirements. Monthly reporting. Security requirements. Contact Health Canada Controlled Substances: 1-866-358-0453.
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Quebec Enterprise Number (NEQ) Registration RequiredRegistration of business with the Quebec Enterprise Registrar. Register with Registraire des entreprises du Québec: 1. Access quebec.ca/entreprises services 2. Complete declaration of registration online 3. Pay registration fee ($38 sole proprietorship, $367 corporation) 4. Receive NEQ (Numéro d'entreprise du Québec) Annual registration fee: $35 (exempt first 2 years). Annual update declaration required. 30-day deadline for changes.
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Quebec Business Registration (REQ - Registraire des entreprises) RequiredAll businesses operating in Quebec must register with the Registraire des entreprises du Québec (Quebec Enterprise Registrar). This includes sole proprietorships, partnerships, and corporations. Registration provides a Quebec Enterprise Number (NEQ) which is required for all business activities including banking, licensing, and tax purposes. Unlike other provinces, registration is mandatory for ALL businesses in Quebec, not just those with a business name different from the owner. Registration can be completed online. Annual declarations must be filed to keep the registration current. Register with Registraire des entreprises within 60 days of starting business. Required for sole proprietors operating under trade name, partnerships, and corporations. $39 for sole proprietorship, $60 for partnership. Receive NEQ (Quebec Enterprise Number).
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Business Licence RequiredGeneral business licence required to operate a business in Ville de Longueuil. Apply to Ville de Longueuil for Business Licence: 1. Determine business category 2. Complete business licence application 3. Submit required documents (ID, lease, zoning confirmation) 4. Pay application and annual fees 5. Await approval and receive licence Contact Ville de Longueuil Business Licensing for specific requirements. Home-based businesses may have different requirements. Annual renewal required.
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Partnership Registration ConditionalRequired if operating as partnership. Registration of general or limited partnerships in Quebec. Register partnership with Registraire des entreprises: 1. Complete declaration of registration 2. Provide partner information 3. Submit registration 4. Pay registration fee General and limited partnerships. NEQ assigned upon registration. Annual update declaration required.
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Quebec Corporation Registration ConditionalRequired if incorporating in Quebec. Incorporation of a company under Quebec law. Incorporate through Registraire des entreprises: 1. Conduct name search (NUANS) 2. Prepare articles of incorporation 3. Submit through quebec.ca or registry office 4. Pay incorporation fee ($367) Annual reporting required. Must file annual update declaration. Federal incorporation alternative available ($200).
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GST/HST Registration ConditionalRequired if annual taxable revenue exceeds $30,000 (small supplier threshold). Taxi/ride-share drivers must register regardless of revenue. Businesses with gross revenues over $30,000 in any single quarter or over four consecutive quarters must register for, collect, and remit GST/HST. Small suppliers (under $30,000) may register voluntarily. Register FREE online through Business Registration Online (BRO) when your revenue exceeds $30,000 in any 4 consecutive quarters (small supplier threshold). Takes 15-30 minutes. You MUST register within 29 days of exceeding threshold and start charging GST/HST immediately on the sale that made you exceed it. Need your BN (or get one simultaneously). As of Nov 3, 2025, online registration is mandatory. Voluntary registration available anytime for input tax credits.
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Payroll Deductions Registration ConditionalRequired if you pay salaries, wages, or other remuneration to employees. Must register before first pay period. Required if you have employees. You must withhold Canada Pension Plan (CPP), Employment Insurance (EI), and income tax from employee wages and remit to CRA. Register FREE online through Business Registration Online (BRO) when you hire your first employee. Takes 15-20 minutes. You'll need your Business Number (BN) or can get one simultaneously. Payroll account (RP) added to your BN instantly. Register BEFORE your first pay date. Required to deduct CPP, EI, and income tax from employee wages. For 2025: CPP rate 5.95%, EI employee rate $1.66/$100 insurable earnings.
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Quebec CNESST Employer Registration (Workers Compensation) ConditionalRequired if you have employees in Quebec. Employers in Quebec must register with the CNESST (Commission des normes, de l'équité, de la santé et de la sécurité du travail) and maintain coverage for workers. CNESST provides insurance coverage for workplace injuries and occupational diseases under Quebec's workers' compensation system. Most employers are required to register within 60 days of hiring their first worker. Employers pay contributions (premiums) based on their business activity classification and assessable payroll. Register with CNESST within 60 days of hiring first employee. CNESST provides workplace health and safety coverage. Premium rates based on industry classification. Annual declaration of wages required by March 14.
Funding & Grants
Available funding programs that may apply to your offices of dentists:
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The HIPP provided up to $200,000 over 9 months for Stage 1 proof-of-concept, with Stage 2 covering up to 75% of eligible expenses over up to 3 years (minimum 25% applicant cost-share). Eligible applicants included Alberta post-secondary institutions, government entities, health delivery agents, and for-profit or not-for-profit organizations. The program …
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The Invest Ontario Fund (IOF) is administered by Invest Ontario, a provincial Crown corporation, to attract and retain strategic business investments in Ontario. The fund provides financial support of up to $4 million through a combination of grants and loans to companies undertaking significant investments in advanced manufacturing, life sciences, …
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The IDCCF addresses the impact of climate change on human health by funding projects that increase surveillance, research, and public awareness of climate-sensitive infectious diseases. Maximum $150,000 per year for projects up to 3 years in duration. Eligible applicants include not-for-profits, universities, Indigenous organizations, provincial/territorial/municipal governments. Federal departments and for-profit …
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SUAP provides contribution funding for a wide range of projects including substance use prevention, harm reduction, treatment, and recovery. Individual project awards have ranged from approximately $1.6 million to $6.3 million in recent announcements. Eligible recipients include not-for-profit health organizations, universities, Indigenous organizations, and other levels of government. For-profit organizations …
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CIHR Catalyst Grants are short-term seed grants (up to 1 year) designed as a first step toward larger, longer-term research projects. The Digital Health stream specifically targets early and mid-career researchers and Indigenous Health researchers working on digital health technologies. Application deadline: March 17, 2026. Total pool: $1,000,000 (approximately 10 …
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