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Starting a Business in Canada: A Step-by-Step Guide for New Entrepreneurs

Everything you need to know to legally start a business in Canada - from choosing your business structure to registering with the CRA and setting up your finances.

April 1, 20259 min readBy ExpenseFlow Team

Starting a business in Canada is an exciting step, but it comes with important legal, financial, and administrative requirements. Understanding each stage before you begin will save you time, money, and headaches down the road.

Step 1: Choose Your Business Structure

The first major decision is how to legally structure your business, and it has implications for your taxes, personal liability, and administrative obligations.

A sole proprietorship is the simplest structure. You and your business are the same legal entity. There is no registration required unless you operate under a trade name, and all income flows through to your personal T1 return. The drawback is unlimited personal liability: if your business has debts or is sued, your personal assets are at risk. This structure works well for freelancers, consultants, and tradespeople starting out.

A partnership works similarly to a sole proprietorship but with two or more owners who share resources, responsibilities, and liability. Each partner is personally liable for the debts of the business, including obligations created by other partners. Partnerships are common among professional services firms and co-founded businesses.

A corporation is a separate legal entity from its owners. Shareholders have limited personal liability, the corporate tax rate on the first $500,000 of active business income is 9% for Canadian-Controlled Private Corporations (CCPCs), and the structure makes it easier to bring in investors. The trade-off is higher setup and maintenance costs, mandatory annual filings, and more complex accounting. Incorporation makes sense once your business is generating meaningful income or you want liability protection.

Step 2: Register Your Business

If you incorporate, you can do so federally under the Canada Business Corporations Act, which gives you the right to operate under your business name across the entire country, or provincially, which is less expensive but limits your name protection to that jurisdiction.

If you operate as a sole proprietor or partnership under any name other than your own legal name, you must register a business name with your provincial government. In Ontario this is done through ServiceOntario and is known as a Master Business Licence. In BC it is the OneStop Business Registry. Registration costs typically range from $60 to $200 depending on the province.

Step 3: Get a Business Number from the CRA

Once your business structure is registered, you will need a Business Number (BN) from the Canada Revenue Agency. This nine-digit identifier is used for all your federal tax accounts. You can apply online through the CRA's Business Registration Online portal.

When you register for your BN, you can also register for the GST/HST program (required once annual revenue exceeds $30,000 and optional before that), a payroll deductions account if you plan to hire employees, a corporate income tax account if you have incorporated, and import/export accounts if you trade internationally.

Step 4: Open a Business Bank Account

Keeping your business and personal finances completely separate is one of the most important things you can do as a new business owner. It makes bookkeeping far easier, protects you legally, and makes it straightforward to identify deductible expenses at tax time.

All major Canadian banks offer business chequing accounts. RBC, TD, Scotiabank, BMO, and CIBC each have tiered plans ranging from around $6 to $40 per month depending on transaction volume. Wealthsimple Business offers a no-fee account with a Visa debit card that many freelancers prefer. When you open your account, bring your business registration documents and a personal ID.

Step 5: Understand Your Tax Obligations

Sole proprietors and partners report business income on their personal T1 return using Form T2125, the Statement of Business or Professional Activities. Corporations file a separate T2 Corporate Income Tax Return. Both must keep complete records and meet filing deadlines.

If your total revenue from taxable supplies exceeds $30,000 in any 12-month period, you are required to register for GST/HST and begin charging your clients the applicable rate. Even below that threshold, voluntary registration allows you to claim Input Tax Credits on the tax you pay on your own business expenses, which can amount to significant recoveries depending on your spending.

If you hire employees, you must open a payroll account with the CRA and remit payroll deductions, including CPP contributions, EI premiums, and income tax withholdings, on a regular schedule.

Step 6: Set Up Your Record-Keeping System

The CRA requires you to keep business records for at least six years. From day one, that means tracking income with invoices and deposit records, tracking expenses with bank statements and receipts, calculating and remitting HST on schedule, and maintaining everything necessary to file your annual return.

Many Canadian contractors rely on a straightforward CSV-based workflow: export monthly bank statements and upload them to an expense tracking tool. This produces clean, categorized records with minimal manual effort and maps directly to the categories on your T2125.

Step 7: Protect Your Business

Business liability insurance protects you against third-party claims arising from your work. If you provide professional services such as IT consulting, engineering, accounting, or legal advice, professional liability insurance (also called errors and omissions or E&O) is often required by clients and is fully tax deductible. A written contract for every client engagement, covering scope, deliverables, payment terms, and intellectual property ownership, is equally essential regardless of your industry.

Common Mistakes New Business Owners Make

The most common mistake is skipping a dedicated business bank account. Mixing personal and business finances creates accounting headaches at tax time and makes it genuinely difficult to substantiate deductions.

Not registering for GST/HST early is another costly oversight. If you were eligible to register but did not, you may have been paying HST on business expenses without recovering it through input tax credits. The missed refunds can be significant.

Poor record-keeping is the third major error. The CRA can deny deductions without supporting documentation, and six-year record retention is not optional. Building good habits from your first day in business is far easier than trying to reconstruct historical records.

Conclusion

Starting a business in Canada is straightforward when you follow the right steps. Choose the structure that fits your current situation, get your CRA accounts in order, separate your finances from day one, and set up a simple record-keeping system before transactions start accumulating. The administrative overhead is manageable, and getting it right from the beginning protects you financially and legally as your business grows.

Disclaimer

This article is for general informational purposes only and does not constitute tax, legal, or financial advice. Canadian tax laws change frequently — always consult a qualified accountant or tax professional registered with the CRA for advice tailored to your specific situation.

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