How to Incorporate a Business in Ontario (Step-by-Step Guide)

Starting a business in Ontario is an exciting step for entrepreneurs. One of the most important decisions you will make early on is whether to incorporate your business.

Incorporation can provide liability protection, tax planning opportunities, and greater credibility with clients and lenders. However, many entrepreneurs are unsure how the process works or what steps are required.

This guide explains how to incorporate a business in Ontario step-by-step, what it costs, and what you should consider before setting up a corporation.

Step 1: Decide Whether Incorporation Is Right for Your Business

Before incorporating, it's important to determine whether a corporation is the best structure for your situation.

Many small businesses initially operate as sole proprietorships, which are simpler to start and manage. However, as businesses grow, incorporation can offer advantages such as:

• Limited liability protection

• Potential tax deferral opportunities

• Easier access to financing

• Greater credibility with customers and partners

If you’re unsure which structure is right for you, it helps to compare the two options.
You can learn more in our guide on Sole Proprietorship vs Corporation in Canada.

Step 2: Choose a Business Name

The next step is selecting a name for your corporation.

In Ontario, you generally have two options:

Named Corporation

This is a custom business name such as:

ABC Electrical Services Inc.

To register a named corporation, you must perform a NUANS name search to ensure the name is unique and not already being used by another business.

Numbered Corporation

A numbered corporation is automatically assigned a name such as:

1234567 Ontario Inc.

This option is faster because it does not require a NUANS search.

If you want to learn more about the naming process, see our article What Is a NUANS Search and Why Is It Required?

Step 3: Decide Between Federal or Ontario Incorporation

Entrepreneurs can incorporate either:

• Provincially in Ontario, or

• Federally through Corporations Canada

Both options have advantages depending on your business goals.

Ontario Incorporation

Most small businesses choose provincial incorporation because it is:

• Simpler

• Slightly cheaper

• Ideal for businesses operating mainly in Ontario

Federal Incorporation

Federal incorporation provides:

• Name protection across Canada

• Greater national recognition

However, it usually requires extra provincial registration if you operate in Ontario.

You can learn more in our article Federal vs Provincial Incorporation in Canada.

Step 4: Prepare Your Incorporation Documents

To incorporate your business, several documents must be prepared and filed.

These typically include:

• Articles of Incorporation

• Registered office address

• Director information

• Share structure of the corporation

The share structure determines how ownership of the company is divided and can have important tax planning implications.

Many entrepreneurs choose to work with an accountant or professional advisor to ensure this structure is set up correctly.

Step 5: File the Articles of Incorporation

Once your documents are prepared, the Articles of Incorporation are submitted to the Ontario government.

You can file incorporation documents:

• Online through the Ontario Business Registry

• Through a service provider

• With the help of an accountant or lawyer

Once approved, your corporation becomes a separate legal entity.

The process usually takes 1–2 business days when filed electronically.

Step 6: Obtain Your CRA Business Number

After incorporating your business, you will need to register for a CRA Business Number (BN).

This number allows you to register for important tax accounts such as:

• Corporate income tax

• GST/HST

• Payroll deductions (if hiring employees)

• Import/export accounts

Setting up these accounts ensures your corporation is compliant with CRA requirements.

Step 7: Open a Corporate Bank Account

Once your corporation is established, you should open a separate business bank account.

Keeping corporate finances separate from personal finances helps:

• Maintain proper financial records

• Simplify bookkeeping

• Ensure accurate tax reporting

Banks typically require your Articles of Incorporation and Business Number to open an account.

Step 8: Set Up Proper Bookkeeping

Many new corporations underestimate the importance of good bookkeeping systems.

Accurate bookkeeping allows you to:

• Track income and expenses

• Monitor profitability

• Stay compliant with CRA requirements

• Prepare corporate tax filings

Setting up bookkeeping early helps prevent financial issues later.

How Much Does It Cost to Incorporate in Ontario?

The cost of incorporating depends on several factors.

Typical costs include:

• Ontario incorporation filing fee (approximately $300)

• NUANS name search (around $40–$60)

• Professional setup fees if you use an accountant or service provider

You can learn more in our article How Much Does It Cost to Incorporate a Business in Ontario?

When Should You Incorporate Your Business?

Incorporation is not always necessary at the very beginning of a business.

Many entrepreneurs choose to incorporate when:

• Business profits begin to grow

• Liability risks increase

• They want to reinvest profits in the company

• They plan to hire employees or expand operations

You can learn more in our article When Should You Incorporate Your Business in Canada?

Mistakes to Avoid When Incorporating

Many new business owners make common mistakes when incorporating, such as:

• Choosing the wrong share structure

• Mixing personal and corporate finances

• Not setting up proper bookkeeping

• Missing tax planning opportunities

Working with a qualified professional can help ensure your corporation is structured correctly from the start.

Need Help Incorporating Your Business?

At A.B.T PRO Inc., we help entrepreneurs start their businesses properly by providing:

• Ontario and federal incorporation services

• NUANS name searches

• Business registration

• CRA business number setup

• Tax planning guidance

Our goal is to make the incorporation process simple and efficient so you can focus on building your business.

Final Thoughts

Incorporating a business in Ontario can provide important legal and financial advantages for entrepreneurs. By understanding the steps involved and setting up your corporation properly, you can position your business for long-term success.

If you’re considering incorporation and want professional guidance, working with an experienced accountant can help ensure everything is done correctly from the start.