Incorporating in Ontario, and when it is worth it

This guide is about the decision, not the paperwork of registering a company. Registration is the easy part. The real question is whether incorporating helps your situation, and if so, how to set it up so the tax planning works.

When does it make sense to incorporate?

A common signal is when your business consistently earns more than you need to live on, often around $125,000 of active income, so profit is left in the company. At that point the lower corporate tax rate and the ability to defer personal tax start to outweigh the cost and admin of a corporation. It is a judgment call, not a fixed line.

Below that, the tax savings are often too small to justify the extra filings. The honest answer for many sole proprietors is "not yet." We will tell you which side of the line you are on.

What incorporation actually gives you

• A lower rate on retained profit. Income you leave in the company is taxed at the low small-business rate, not your personal rate.
• Tax deferral. You pay personal tax only on what you take out, so you can smooth income across years.
• Flexibility in how you pay yourself. Salary, dividends, or a mix, planned around your personal taxes.
• Limited liability and a separate legal entity, which can matter as you grow.

Professional incorporation in Ontario

A professional corporation is a company that regulated professionals, such as physicians, dentists, and lawyers, can set up to carry on their practice. It follows extra rules from your professional college, but it gives you the tax planning options of a corporation.

For a physician or dentist, a professional corporation often means income left in the practice is taxed at the low rate, freeing cash to invest or to fund slower years. The college sets rules on who can own shares and how the corporation is named. We set it up to meet those rules and to make the tax planning work from day one.

Can a realtor incorporate in Ontario?

Yes. Since 2020, Ontario realtors can set up a Personal Real Estate Corporation (PREC) to receive their commissions and access corporate tax planning. There are specific rules about share ownership and naming, which we help you get right.

A PREC suits agents whose commissions have grown past what they spend. The corporation receives the commission, you pay yourself what you need, and the rest is taxed at the lower corporate rate until you take it out.

What it costs you in time and admin

Beyond the setup, a corporation means a separate T2 return every year, its own bookkeeping, and filings to keep it in good standing. That ongoing work is the real cost to weigh against the tax benefit.

None of it is hard when someone handles it for you, but it is real, and it is why incorporating too early can cost more than it saves. See advisory and planning for how we set it up, and salary vs dividend for how you pay yourself once you are incorporated.