Start Your Mississauga Legal Counsel and Prosecution Practice
This page is your practical, step-by-step guide to launching a Legal Counsel and Prosecution service in Mississauga, aligned with NAICS 922130. You’ll get a clear map of the 14 requirements you must meet, plus practical tips to prepare each item. We cover the key permits and registrations you’ll need, realistic startup costs, and a timeline that helps you stay on track from day one. By the end, you’ll have a concrete plan to move confidently from idea to operation.
What you’ll learn on this page is practical, actionable, and tailored to Mississauga. You’ll get a detailed overview of all 14 requirements—what they are, who approves them, and how to prepare the supporting documents. We break down permits and licensing steps, from professional credentials to business registrations, so you’ll know exactly what to apply for and when. You’ll also see realistic cost ranges—registration fees, insurance, office setup—and a step-by-step timeline so you can gauge when you’ll be ready to launch. With these insights, you can create a prioritized checklist and hit milestones without guesswork.
Requirements Overview
The most critical requirement for operating a legal counsel and prosecution practice in Mississauga is Occupational Health and Safety Act Compliance. This is a legal must you cannot operate without—having proper safety policies, training, and procedures in place to protect your staff and clients is non-negotiable. You’ll need to implement safe work practices, provide appropriate training, and maintain systems for incident reporting and investigation to stay compliant and avoid penalties.
In terms of day-to-day operations, you’ll want to cover mandatory compliance areas that relate to how you run your workplace and handle information. This includes workplace safety (OHS Act) and ensuring you have WSIB coverage for employees, plus Employment Standards compliance (pay, hours, leaves). You’ll also need to respect privacy and access to information rules, and you should be aware of Official Languages Act and French Language Services Act requirements if you serve clients in multiple languages. Additional considerations include Public Service Employment Standards, Financial Administration Act compliance, and ethics-related requirements like Conflict of Interest and Ethics.
For registration and tax, you should secure your business identity and tax numbers early. This means obtaining a Business Number (BN) from the CRA, getting a city business licence, and registering your Ontario business name with ServiceOntario. You’ll also need GST/HST registration and Payroll Deductions registration to handle taxes and employee payroll properly. Together, these steps create the legal foundation your practice needs to operate smoothly and avoid gaps in compliance.
Next steps: start with a quick compliance check of your plan, gather the required documents, and set up a timeline. Consider consulting a business advisor or compliance specialist, and use government portals (CRA, ServiceOntario, the City of Mississauga) to file and renew on time. With a clear roadmap, you can move forward co
Detailed Requirements
Here are the specific requirements for starting a legal counsel and prosecution in Mississauga:
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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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Business Licence RequiredGeneral business licence required to operate a business in City of Mississauga. Apply to City of Mississauga 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 City of Mississauga Business Licensing for specific requirements. Home-based businesses may have different requirements. Annual renewal required.
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Ontario Business Name Registration (ServiceOntario) RequiredBusinesses in Ontario operating under a name other than the owner's legal name must register with Ontario Business Registry through ServiceOntario. This includes sole proprietorships, partnerships, and business names for corporations. Registration provides legal protection for the business name within Ontario and is required for banking, licensing, and business operations. Registration can be completed online through Ontario Business Registry. Business name registrations must be renewed every 5 years. Register business name with Ontario Business Registry: 1. Search Ontario Business Registry (free) for name availability 2. Consider NUANS name report ($25) for thorough search 3. Register online through Ontario Business Registry 4. Pay registration fee ($60 for sole proprietorship/partnership) 5. Receive 9-digit Ontario Business Identification Number (BIN) 6. Registration valid for 5 years 7. Renew before expiry
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Occupational Health and Safety Act Compliance RequiredAll Ontario workplaces must comply with the Occupational Health and Safety Act to ensure safe working conditions. Requirements include workplace safety policies, training, hazard assessments, and incident reporting. No registration - compliance law. Must post OHSA in workplace. JHSC required for 20+ workers (or 6+ in designated industries). Nov 2025: New administrative penalty scheme, defibrillator reimbursement. Telework now covered. Fines: up to $500K individuals, $1.5M corporations. 27 regulations under OHSA. Must conduct safety audits, maintain training records. Contact: 1-877-202-0008.
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Public Service Employment Standards ConditionalRequired for public service employment. Government organizations must comply with public service employment standards, merit-based hiring, bilingualism requirements, and accountability frameworks. Public Service Employment Act compliance for federal government. Merit-based hiring. Official languages. Staffing processes. Contact PSC: 1-855-330-3310.
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Financial Administration Act Compliance ConditionalRequired for specific regulated activities. Government organizations must follow financial management rules, procurement policies, contracting standards, and audit requirements. Financial Administration Act compliance for federal contractors. Procurement rules. Payment terms. Audit requirements. Conflict of interest. Contact Treasury Board: 1-877-636-0656.
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Conflict of Interest and Ethics ConditionalRequired for specific regulated activities. Public officials and government employees must comply with conflict of interest rules, ethics codes, disclosure requirements, and post-employment restrictions. Conflict of Interest Act for federal government appointees and public office holders. Disclosure requirements. Divestment. Post-employment restrictions. Contact Ethics Commissioner: 613-995-0721.
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Access to Information and Privacy ConditionalRequired for specific regulated activities. Government bodies must comply with access to information requests, privacy protection, records management, and transparency obligations. Access to Information and Privacy Act compliance for federal contractors. Records management. ATIP request handling. Privacy breach procedures. Training requirements. Designated coordinator. Contact Treasury Board: 1-877-636-0656.
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Official Languages Act Compliance ConditionalRequired for specific regulated activities. Federal government institutions must provide services in English and French, comply with language-of-work rights, and implement bilingual communications. Official Languages Act compliance for federal institutions and contractors. Bilingual services. Language of work. Contact Treasury Board: 1-877-636-0656.
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French Language Services Act ConditionalRequired for French language services. Ontario government offices in designated areas must provide services in French and comply with French language service standards. French Language Services Act (FLSA) since 1989. Applies to provincial government agencies in designated areas. Active offer: 2023 regulation requires French from first contact without request. 315 cases handled Oct 2024-Sept 2025. Fire Code now in French (Jan 2026). Ministry updated 73 organizations in 2024-25. $800K invested in French SMEs. Exemptions: narrow/restrictive. Contact Office of Francophone Affairs.
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Employment Standards Compliance ConditionalApplies if you have employees. Covers minimum wage, hours of work, vacation pay, public holidays, termination notice, etc. All Ontario employers must comply with the Employment Standards Act, covering minimum wage, hours of work, overtime, vacation, termination, severance, and other workplace rights. No registration required - compliance-based requirement. Follow Employment Standards Act (ESA) for minimum wage, hours of work, overtime, vacation, leaves, and termination. Post ESA poster in workplace (free download from ontario.ca). Keep employment records for 3 years. NEW for 2025: Employers with 25+ staff must provide written employment info to new hires by July 1, 2025. Job postings must include salary ranges by Jan 1, 2026. Call 1-800-531-5551 for help.
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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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WSIB Registration and Coverage ConditionalRequired within 10 days of hiring first employee, including family members and subcontractors. Workplace Safety and Insurance Board (WSIB) registration is mandatory for most Ontario businesses with employees. Provides compensation and support for workplace injuries and illnesses. Sole proprietors and partners can apply for optional coverage. Register FREE online at wsib.ca in 15-20 minutes. MANDATORY for most Ontario employers within 10 calendar days of hiring first worker. You'll need: CRA Business Number, payroll estimate, business activity description, owner/director info. Account number issued INSTANTLY online. Construction industry has expanded compulsory coverage. Premium rates vary by industry classification. Must display WSIB safety poster in workplace.
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