Written by Behdad Karimi Dermeni, CPA · Reviewed by Maryam Ajorloo, CPA
Ever wanted to start your own business? One of the first questions you will ask is whether to stay self-employed or to incorporate. It sounds like a paperwork decision, but corporation vs self-employed is really a decision about liability, taxes, and how much admin you want to take on, and getting it right early saves you money and headaches later.
The short answer: being self-employed (a sole proprietorship) is the simplest and cheapest way to run a business, but you and the business are legally the same, so you are personally on the hook for its debts and taxed at your personal rate. A corporation is a separate legal entity that gives you liability protection and access to lower corporate tax rates, in exchange for more cost and paperwork.
You do not have to solve your whole bookkeeping setup to make this call, but you will want clean books either way. Start your 30-day free trial and let the AI Bookkeeper track your income and expenses from day one.
What is a self-employed (sole proprietorship) business?
A sole proprietorship is a business owned by one person. You make the decisions, you keep all the profits, and you absorb all the losses. Critically, the business is not a separate legal entity from you: for tax and legal purposes, you and your business are the same.
Your business income is reported on your personal tax return (the T1), using the T2125 Statement of Business or Professional Activities. There is no separate corporate return, no separate tax rate, and very little to set up. For most people testing an idea or running a small service business, this is where they start.
What is an incorporated business?
Incorporating creates a separate legal entity, a corporation, that is distinct from you. The Canada Revenue Agency (CRA) treats it as its own "person": it can own assets, sign contracts, take on debt, and it files its own corporate tax return (the T2) each year.
You still file your own personal T1, but now you are a shareholder (and usually an employee or director) of a company that is legally separate from you. That separation is the source of most of incorporation's advantages, and most of its extra work.
The rule of thumb: when does incorporating make sense?
Here is the heuristic most CPAs use: stay self-employed while your business is small and you spend most of what you earn. Incorporate once you are consistently earning more than you need to live on, because that is when leaving profit inside the company at the lower corporate tax rate starts to pay off.
There is a rough income level where the math tips in favour of incorporating. We work through that exact number in at what income level should I incorporate. For now, keep the principle in mind: incorporation is a tax and liability tool, not a status symbol, and it earns its keep once there is real profit to protect and defer tax on.
Self-employed: advantages and disadvantages
Sole proprietorships win on simplicity and cost. They lose on liability and, eventually, on tax flexibility.
Advantages of being self-employed:
Low cost and easy setup. Registering (and later dissolving) a sole proprietorship is inexpensive and fast. If you operate under your own legal name, you may not need to register at all.
Less paperwork. No corporate filings, no annual returns, no minute book. Your business income goes on your personal return.
Simple taxes. One tax return, filed as part of your personal T1.
Easy to change later. You can incorporate down the road once the business grows, so starting simple costs you nothing.
Disadvantages of being self-employed:
Unlimited personal liability. Because you and the business are the same, your personal assets (savings, and in some cases your home) are exposed if the business is sued or cannot pay its debts.
Taxed at personal rates. All your net business income is taxed at your personal marginal rate, which climbs quickly and can exceed 50% at the top brackets in most provinces. There is no ability to leave profit in the business at a lower rate.
Harder to raise money. Many lenders and investors prefer, or require, a corporation before they will put money in.
Less credibility with some clients. A minority of larger clients prefer to contract with an incorporated business.
Incorporation: advantages and disadvantages
Incorporating flips the trade-off: more protection and tax flexibility, in exchange for more cost and admin.
Advantages of incorporating:
Limited liability. The corporation's finances are separate from yours, so your personal assets are generally protected if the business runs into legal or financial trouble.
Lower tax rates on retained profit. A Canadian-controlled private corporation (CCPC) pays a low small business tax rate on its active business income, far below top personal rates (more on the numbers below).
Tax deferral. Profit you leave inside the company is taxed only at the corporate rate until you take it out, which lets you smooth your income and reinvest more.
The lifetime capital gains exemption. If you eventually sell qualifying shares of your corporation, you may shelter up to $1.25 million of the gain from tax. This exemption is only available to incorporated businesses.
Continuity and credibility. A corporation keeps going independent of any one owner, and can make raising capital or landing larger contracts easier.
Disadvantages of incorporating:
Higher cost and more compliance. Incorporation has setup fees plus ongoing legal and accounting costs. You file a separate T2 corporate return every year.
More paperwork. Corporations must keep detailed records, maintain a minute book, and file annual returns.
Less flexibility with losses. Early-stage business losses stay locked in the corporation, whereas a sole proprietor can often apply them against other personal income.
You cannot freely dip into the money. Funds belong to the corporation, so paying yourself means salary or dividends, each with its own tax treatment.
How the taxes actually compare
This is the part most guides skim, so let us be concrete. As a sole proprietor, every dollar of net profit is added to your personal income and taxed at your marginal rate. In Ontario, for example, the top combined personal rate reaches about 53.5% in 2026, and other provinces are in the same neighbourhood.
A CCPC earning active business income pays much less on the first $500,000: a combined federal and provincial small business rate of roughly 11% to 12.2%, depending on your province. Profit above $500,000 is taxed at the general corporate rate, roughly 23% to 31% combined.
Here is the honest nuance, because it matters: that low corporate rate is a tax deferral, not free money. When you eventually pay yourself out of the corporation as salary or dividends, personal tax applies then. If you earn $90,000 and spend all $90,000 to live, incorporating saves you very little, because it all comes out as personal income anyway. The advantage shows up when you can leave profit inside the company:
Deferral: money left in the corporation is taxed at ~12% instead of your personal rate, so more of it stays invested and working for you until you need it.
Income smoothing: you decide when to pay yourself, which can keep you out of the highest personal brackets in your best years.
Planning room: salary versus dividends, and the eventual lifetime capital gains exemption, give you options a sole proprietor does not have.
One caution: if your corporation earns a lot of passive investment income (over $50,000 a year), the small business limit starts to grind down, which is exactly the kind of thing to review with your accountant.
This is also where clean, current books stop being optional. A corporation needs proper financial statements for its T2, and the numbers have to be right. See how ReInvestWealth keeps your books ready.
How to register each one
Staying self-employed is the simpler path. If you operate under your own name, you may already be set. If you want a business name, you register it provincially, which is quick and inexpensive. You can start a business for free and stay a sole proprietor as long as it suits you.
Incorporating can be done federally (through Corporations Canada) or provincially, and the steps differ a little by province. Our step-by-step guide to incorporating in Ontario walks through the whole process. You can also take advantage of ReInvestWealth's partnership with Ownr to incorporate at a discount.
Keeping business and personal separate
Whichever structure you choose, keep the money separate. For a corporation it is mandatory, since the company's funds are legally not yours. For a sole proprietor it is strongly recommended, because it makes your bookkeeping and your T2125 far cleaner.
Open a dedicated business bank account, run all business income and expenses through it, and pair it with simple accounting software so the categorizing happens automatically. It is a lot easier than untangling a shared account every March.
Which one is right for you, and how software helps
If you want the lowest cost and least paperwork, and your profit is modest, staying self-employed is usually the right call. If you want liability protection, are consistently profitable beyond what you spend, or are planning for growth or an eventual sale, incorporating starts to make sense.
Either way, the day-to-day work is the same: track income, track expenses, keep receipts, and stay ready for tax time. That is what ReInvestWealth automates for both sole proprietors and corporations:
Automate your bookkeeping by connecting your bank so transactions import and get categorized by the AI Bookkeeper.
Cut repeat work with automation formulas that classify recurring transactions.
Capture every receipt by uploading or forwarding them into Smart Shoebox (your receipt inbox).
Reconcile Stripe payments and fees automatically when you invoice through it.
Stay on top of sales tax with GST/HST/QST calculations and a filing workflow built for the CRA and Revenu Québec.
Generate financial reports (income statement, balance sheet, general ledger) that your corporation needs for its T2 and your accountant will thank you for.
More than 3,000 entrepreneurs already run their books this way. Connect your bank, let the AI categorize your transactions, and get CPA-level clean books whether you stay self-employed or incorporate. Start for free.
Frequently asked questions
Is it better to be self-employed or incorporated in Canada?
It depends on your profit and goals. Self-employed is cheaper and simpler and works well when your income is modest and you spend most of it. Incorporating gives you liability protection and lower tax rates on retained profit, which pays off once you are consistently earning more than you need to live on.
Do I pay less tax if I incorporate?
Not automatically. A corporation pays a low rate (about 11% to 12.2%) on profit left inside it, but you pay personal tax when you take that money out. The real benefit is deferral and planning flexibility on profit you do not need right away, not an instant tax cut on money you spend.
Can I switch from sole proprietor to a corporation later?
Yes, and many businesses do exactly that. You can start as a sole proprietor and incorporate once the numbers justify it. Because it is easy to change later, starting simple costs you nothing.
Is a sole proprietor considered self-employed?
Yes. A sole proprietorship is the most common form of self-employment. You report the business income on your personal T1 return using the T2125 form, since you and the business are the same legal entity.
What are the downsides of incorporating too early?
Extra cost and paperwork with little tax benefit. If your profit is small or you spend everything you earn, the annual corporate filing and accounting costs can outweigh the savings, and early business losses get locked in the corporation instead of offsetting your personal income.
A note from our CPAs: This guide is educational and covers the general rules for Canadian small business owners weighing incorporation. The right structure depends on your specific numbers, so for advice on your situation, talk to your accountant. (If they use ReInvestWealth, they will already have clean books to work from.)
Related reading: How to Incorporate in Ontario: Step-by-Step Guide
Related reading: Solopreneur vs. Entrepreneur: Key Differences
Related reading: Business Income vs. Professional Income: What's the Difference?
Related reading: Tax Deadline for Small Business in Canada: 2026 Guide
Written by Behdad Karimi Dermeni, CPA
Co-founder of ReInvestWealth and a founding community builder at Stripe. Behdad built ReInvestWealth to give smart, busy entrepreneurs CPA-level accounting without the CPA-level price tag. Read more · Connect on LinkedIn
Reviewed by Maryam Ajorloo, CPA
Maryam Ajorloo is the co-founder of ReInvestWealth and a CPA who specializes in small business tax, sales tax, and everyday bookkeeping. She helps entrepreneurs keep clean, audit-ready books and make sense of write-offs, filing deadlines, and the numbers behind their business. Read more · Connect on LinkedIn
