Starting a business from home is one of the most accessible paths to entrepreneurship. In Markham, thousands of residents run successful businesses from their homes, ranging from freelance consulting and tutoring to e-commerce, graphic design, bookkeeping, and professional services. The overhead is low, the commute is non-existent, and you can often test a business idea without the financial risk of signing a commercial lease.
But running a business from your Markham home is not as simple as hanging out a shingle and accepting clients. The City of Markham has specific bylaws governing home-based businesses, and the Province of Ontario and the Canada Revenue Agency have registration and tax requirements that apply regardless of how small your operation is. This guide walks you through everything you need to know, step by step.
Step 1: Understand Markham's Home Occupation Bylaw
The City of Markham regulates home-based businesses under By-law 53-94, commonly known as the Home Occupations By-law. This bylaw sets out the rules that home businesses must follow to ensure they remain compatible with the residential character of the neighbourhood. Here are the key provisions:
- Floor area limit: Your home business may occupy a maximum of 25 percent of the total floor area of your home. If you live in a 2,000 square foot house, your business space cannot exceed 500 square feet.
- Employees: You may employ a maximum of one non-resident employee who works at your home. Family members living in the home do not count toward this limit.
- No exterior signage: You cannot display any signs, advertising, or displays on the exterior of your home that indicate a business is operating. Your home must maintain a residential appearance from the outside.
- No exterior storage: Business-related materials, goods, inventory, or equipment cannot be stored outside the home, including in the driveway, yard, or visible from the street.
- Teaching limits: If your home business involves teaching or tutoring, you are limited to a maximum of four students at a time on the premises.
- Retail restrictions: Retail sales from home are limited to items that are produced or assembled at your home. You cannot operate a general retail store. Mail-order and online sales are permitted.
- Deliveries: Deliveries to your home must be limited to vehicles that are typical for a residential area. You cannot have commercial trucks or frequent courier vans regularly servicing your address.
- Parking: If you employ a non-resident worker, you must provide a parking space for them on your property.
- Nuisance restrictions: Your business cannot create noise, odour, vibration, dust, fumes, or traffic that disturbs your neighbours or changes the residential character of the area.
Businesses That Are Prohibited at Home
Some types of businesses are explicitly prohibited from operating as home occupations under Markham's bylaws, regardless of size or scale. These include:
- Restaurants and food service establishments (note: home-based food production has separate rules — see below)
- Retail stores or showrooms
- Kennels and animal boarding
- Auto repair, auto body, or vehicle detailing shops
- Taxi, limousine, or transportation dispatch services
- Adult entertainment businesses
- Contractor's yards or equipment storage
- Any business involving hazardous materials
There is one notable exception: doctors, dentists, and drugless practitioners (such as chiropractors and naturopaths) may operate from a home located on a corner lot on a major road, subject to specific conditions. This exception is rarely used but is available for qualifying properties.
Step 2: Verify Your Zoning
Before you set up your home business, it is a good idea to confirm that your specific property is zoned to allow home occupations. While most residential zones in Markham do permit them under By-law 53-94, certain areas may have additional restrictions or exceptions.
You can verify your zoning status by contacting the City of Markham's bylaw and planning department at 905-479-7782. Staff can look up your address and confirm whether a home occupation is permitted and if any specific conditions apply to your zone. This call takes five minutes and can save you significant headaches later.
Step 3: Register Your Business with Ontario
Once you have confirmed that your home business is permitted under Markham's bylaws, the next step is to register your business with the Province of Ontario. This is required by law if you are operating under any name other than your own full legal name.
You have several options:
- Sole proprietorship or partnership: Register through the Ontario Business Registry at ontario.ca/page/register-business-name. The registration fee is $60 and can be completed entirely online. This is the simplest and most common structure for home-based businesses.
- Incorporation: If you want to operate as a corporation (which provides liability protection and certain tax advantages), you can incorporate through the Ontario Business Registry for approximately $300. Many home-based business owners start as sole proprietors and incorporate later as revenue grows.
Registration gives you a legal business name and a Business Identification Number (BIN) from the province. You will need this for banking, invoicing, and other business activities.
Step 4: Get Your CRA Business Number and HST Registration
Separately from the provincial registration, you need a Business Number (BN) from the Canada Revenue Agency (CRA). You can register for free at canada.ca/en/revenue-agency/services/tax/businesses/topics/registering-your-business.html or by calling 1-800-959-5525.
Your CRA Business Number is the identifier you use for all federal tax purposes, including income tax, payroll, and HST.
Speaking of HST: if your business generates more than $30,000 in revenue over four consecutive calendar quarters (or in a single quarter), you are required to register for and collect HST. Even if you are below this threshold, you may choose to register voluntarily, which allows you to claim input tax credits (ITCs) on business expenses. For many home-based businesses, especially those with significant supply or equipment costs, voluntary registration can be financially advantageous.
Step 5: Special Rules for Home-Based Food Businesses
If your home business involves preparing and selling food, there are additional requirements beyond the general home occupation rules. Ontario regulates home-based food businesses under the Ontario Food Premises Regulation, and York Region Public Health oversees compliance in Markham.
Key considerations include:
- You may need a food handler certification.
- Your kitchen may need to meet specific health and safety standards.
- Certain types of food (low-risk items like baked goods, jams, and pickles) have different regulatory requirements than high-risk items (meat, dairy, prepared meals).
- You should contact York Region Public Health at 1-800-361-5653 for specific guidance on your product type.
Ontario also publishes a guide for home-based food businesses that covers labelling, safe food handling, and what you can and cannot sell. Starting with low-risk products like baked goods is the most straightforward path for home-based food entrepreneurs.
Step 6: Insurance Considerations
Your standard homeowner's or renter's insurance policy almost certainly does not cover business activities conducted from your home. If a client visits your home and is injured, or if business equipment is stolen or damaged, your personal insurance may deny the claim.
Contact your insurance provider and ask about a home business rider (also called an endorsement). This is an add-on to your existing home insurance policy that extends coverage to your business activities. The cost is typically modest, ranging from $100 to $500 per year depending on your business type and coverage needs. For businesses with higher liability exposure (such as personal training, childcare, or food preparation), a separate commercial general liability policy may be recommended.
Step 7: Tax Deductions for Your Home Office
One of the financial advantages of running a home-based business is the ability to deduct a portion of your home expenses on your tax return. The CRA allows you to claim a percentage of the following expenses based on the proportion of your home used for business:
- Rent or mortgage interest (not the mortgage principal)
- Property taxes
- Utilities (electricity, gas, water, internet)
- Home insurance
- Maintenance and minor repairs
For example, if your home office occupies 15 percent of your home's total area, you can deduct 15 percent of these expenses. Keep detailed records and receipts, and consider consulting with an accountant to ensure you are claiming everything you are entitled to without overstepping CRA guidelines.
Practical Tips for Success
Beyond the legal and regulatory requirements, here are practical tips from successful Markham home-based business owners:
- Set a dedicated workspace. Even if it is a corner of a room, having a defined business space helps you stay focused, maintains professionalism during video calls, and supports your home office tax deduction.
- Set business hours. One of the biggest challenges of working from home is the blurring of work and personal time. Establish clear hours and communicate them to clients.
- Get a separate business phone number. A dedicated business line (even a VoIP number like Google Voice) keeps your personal and business communications separate.
- Open a separate business bank account. This is not legally required for sole proprietors, but it makes bookkeeping dramatically easier and looks more professional to clients and the CRA.
- Network locally. Markham has a vibrant small business community. Join the Markham Board of Trade, attend local networking events, and connect with other home-based entrepreneurs. Referrals from fellow Markham business owners are often the best source of new clients.
Resources and Contacts
- City of Markham Bylaw Department: 905-479-7782 (zoning confirmation and home occupation questions)
- Ontario Business Registry: ontario.ca/page/register-business-name ($60 sole proprietorship, $300 incorporation)
- CRA Business Registration: 1-800-959-5525 or canada.ca
- York Region Public Health (food businesses): 1-800-361-5653
- Markham Board of Trade: markhamboard.com
Starting a home-based business in Markham is absolutely doable as long as you follow the rules and set yourself up properly from the start. The bylaw requirements are straightforward, the registration process is simple, and the tax advantages are real.
Looking for more resources and guides for Markham entrepreneurs? Visit markhambusiness.com to explore our full library of business guides, local news, and directory listings.