Self-employed individuals in Ontario have several options when starting a business. Many begin as a Sole Proprietorship or Partnership, as these structures offer a simple way to get started and adjust to running a business.
As your business becomes more profitable, you may start considering whether incorporating is the right next step.
In this guide, we’ll walk you through key factors to consider, including tax differences, revenue thresholds, and when incorporation may start to make financial sense.
What is a Sole Proprietorship?
A Sole Proprietorship is a simple, low-cost starting point for many aspiring Ontario business owners. This business structure is not legally separate from the owner, meaning your business income, finances, and obligations are directly tied to you.
This approach is popular in the early stages because it offers:
- Lower startup costs, with no complex setup or legal structure
- Simple tax filing, with income reported on your personal T1 returns
- Income taxed at your personal marginal tax rate, based on your total earnings
- Full control over decisions, with no shareholders or formal approvals required
- Minimal administrative requirements, making it easier to manage
This structure often works best at lower income levels. However, as your business revenue increases, it can push you into a higher tax bracket, increasing the amount of tax you pay.
It’s also important to consider liability. Because there is no legal separation between you and your business, you are personally responsible for all business debts and obligations. This means your personal assets could be at risk if the business faces financial challenges.
What is Incorporation?
Incorporation is a business structure that creates a legal separation between your personal and business finances. Unlike a sole proprietorship, your business income is not automatically treated as personal income. The corporation pays its own tax on profits, and you choose how and when to pay yourself, typically through salary or dividends.
This structure becomes more appealing as your business grows because it offers:
- Limited liability, helping protect your personal assets from business debts and legal obligations
- Corporate income taxed separately from personal income
- Opportunities for tax planning, especially when retaining earnings within the business
- Greater flexibility in how and when you pay yourself
- The ability to issue shares and bring in investors, if needed
From a tax perspective, incorporation often benefits business owners who consistently generate more income than they need for personal expenses. Consistent earnings within the corporation can create tax-deferral opportunities, rather than paying higher personal rates immediately.
Incorporation can also reduce personal risk. As your business takes on more clients and financial commitments, establishing a separate legal entity can provide added protection for your personal assets.
However, this structure comes with higher setup costs and ongoing administrative requirements, including corporate tax filings, bookkeeping, and regulatory compliance.
For many business owners, incorporation becomes a more attractive option as revenue increases, risk exposure grows, and the potential tax advantages begin to outweigh the added complexity.
Tax Differences Between Sole Proprietors & Corporations
As your business income grows, taxes can have a significant impact on your overall earnings. The key difference between sole proprietors and corporations is how income is taxed, and when those taxes are paid:
| Feature | Sole Proprietorship | Corporation |
|---|---|---|
| Tax Filing | Included in personal T1 return (T2125) | Separate T2 corporate tax return |
| Tax Rates | Personal marginal tax rates (can increase as income grows) | Corporate tax rates are often lower on active business income |
| Tax Timing | Taxed on all profit, no matter what | Business taxed first; personal taxes apply when income is withdrawn |
| Tax Planning | Limited flexibility | More flexibility in how and when income is paid (salary or dividends) |
| Small Business Deduction | Not available | May apply to the first $500,000 of active business income |
In a Sole Proprietorship, all profits are added directly to your personal income, which may push you into higher tax brackets as your revenue increases. Conversely, a corporation allows you to leave some earnings in the business, which may result in lower immediate taxation and create opportunities for tax deferral over time.
If you’re exploring your next step, Ontario Business Central makes it easy to register your business online with a quick, guided process.
Revenue Thresholds for Incorporation in Canada
There’s no single revenue level that determines when to incorporate. The right decision depends on your profitability, personal income needs, and risk exposure.
Reviewing the following common benchmarks can help guide your thinking:
- ~$30,000 to $80,000
- GST/HST registration may be required
- Many businesses remain Sole Proprietorships at this stage
- ~$80,000 to $100,000
- Personal tax rates begin to increase more noticeably
- The gap between personal and corporate tax rates starts to become more relevant
- ~$120,000+
- Greater potential for tax efficiency through incorporation
- More opportunity to retain earnings within the business instead of withdrawing all income
In many cases, business owners begin seriously considering incorporation when their income exceeds what they need for personal expenses. At this stage, a corporation may allow you to leave excess earnings in the business and defer personal taxes.
Incorporation can also become more valuable as your business takes on greater risks, such as larger contracts or reinvesting profits.
Tip: Weigh these benefits against the additional costs and responsibilities of maintaining a corporation.
Ontario Business Central offers a simple, guided way to incorporate your business online when you’re ready.
When Incorporation Makes Financial Sense
As your business grows, you may begin to consider whether incorporation is the right next step. It’s important to look beyond revenue alone and also consider your personal spending needs and level of risk exposure.
Example Scenario
A business owner earning $60,000 and using most of that income for personal expenses may find that a sole proprietorship continues to work well due to its simplicity and lower costs.
On the other hand, a business generating $120,000 or more in profit may begin to see advantages in incorporating, especially if a portion of that income can be retained within the business.
At this stage, tax deferral opportunities and lower corporate tax rates can start to make a noticeable financial difference.
Finding the Right Fit as Your Business Grows
Beyond tax savings, it’s also important to consider how your business is evolving overall. A growing business also needs to consider increasing liability risks from more clients, contracts, or employees.
Incorporation may offer added protection by separating your personal assets from business obligations. In many cases, incorporation starts to make sense when your business is:
- Consistently profitable
- Generating more income than you need for personal expenses
- Taking on greater financial or legal risk
- Planning for growth, hiring, or investment
If you’re reaching this stage and considering incorporating, the right support can bring clarity to a big decision. Contact Ontario Business Central for support in reviewing your options and guiding you through the next phase of your business growth.
inquiries@ontariobusinesscentral.ca
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Ontario Business Central Inc. is not a law firm and cannot provide a legal opinion or advice. This information is to assist you in understanding the requirements of registration within the chosen jurisdiction. It is always recommended when you have legal or accounting questions, that you speak to a qualified professional.
