Last Updated: October 23, 2026
Quick Summary
To incorporate a business in Ontario, you file articles of incorporation online through the Ontario Business Registry and pay the filing fee, then receive your certificate of incorporation. Before filing, you must settle your corporate name, directors, and share structure, and named corporations also need a NUANS report. After incorporation, open your CRA accounts and track your annual return and T2 deadlines.
- A numbered corporation is the cheapest and fastest path because it skips the name search and reservation.
- Ontario requires at least one director, and at least 25% of directors must be resident in Canada.
- The registered office must be a physical address in Ontario, not a PO box.
- The Ontario annual return is due each year on the anniversary of your incorporation date.
- Ontario can dissolve a corporation for failing to file its annual return.
Table of Contents
- Before You File: Structure, Name, and Directors
- Ontario Corporation Name Search and NUANS Report
- How to File Articles of Incorporation in Ontario
- Ontario Business Incorporation Cost Breakdown
- How Long Does It Take to Incorporate in Ontario?
- After Incorporation: Compliance Calendar and Tax Accounts
- Common Mistakes and How to Avoid Them
- Frequently Asked Questions
Before You File: Structure, Name, and Directors
To incorporate a business in Ontario, you start long before you open a government portal.
A corporation is a separate legal entity from its owners. That separation is the whole point: it limits your personal liability and opens the door to the small business tax rate.
At Lira Tax & Accounting, we work with incorporated business owners to bridge the gap between complex tax regulations and everyday business needs. The paperwork is not hard.
Choose a Named or Numbered Corporation
You have two options. A numbered corporation gets its name assigned by the government, such as "1234567 Ontario Inc." A named corporation uses a name you choose and reserve.
Numbered is faster and cheaper. There is no name search, and no risk of rejection. Many founders start numbered and trademark a brand name separately.
Named corporations need a name that passes Ontario's rules. It must be distinctive, not misleading, and include a legal ending such as Limited, Incorporated, or Corporation.
Director and Incorporator Eligibility
An incorporator is the person who files the paperwork. In Ontario, that can be an individual or a company, and there is no residency requirement.
Directors are different. Ontario requires a minimum of one director, and at least 25% of directors must be resident in Canada.
Directors must be at least 18, not bankrupt, and legally capable. Keep your incorporator and director roles distinct in your mind.
Ontario Corporation Name Search and NUANS Report
An Ontario corporation name search is the step that confirms your proposed name is available. For a named corporation, you need a NUANS report, which is a searchable record of existing corporate and business names.
Order the report through an approved search house. It stays valid for a limited window, so do not order it months before you plan to file.
Watch for these rejection triggers:
- Names that are confusingly similar to an existing corporation
- Words implying government connection, like "Royal" or "Ontario"
- Restricted terms such as "Bank," "Insurance," or "Engineer" without approval
If your name is rejected, you can amend and resubmit. It costs time, not credibility. Budget a few extra days if your name is common.
How to File Articles of Incorporation in Ontario
Articles of incorporation are the document that legally creates your corporation. In Ontario, you file them online through the Ontario Business Registry.
Here is a common sequence:
- Confirm your name is approved or reserved
- Complete the articles with your corporate name, registered office, directors, and share structure
- Submit the application through the registry
- Pay the filing fee
- Receive your certificate of incorporation
The certificate is your proof of existence. Keep it with your corporate records. You will need it for banking, contracts, and tax registration.
Share Structure and Classes
Share structure trips up more founders than any other field. You must define how many shares the corporation can issue and what classes they belong to.
Most small corporations start simple: one class of common shares with full voting and dividend rights. That is usually enough.
You need multiple classes only when you plan to do something specific:
- Issue shares to investors with different rights
- Split voting control from dividend entitlement
- Bring in family members with limited rights
Every class needs clear rights, privileges, and restrictions written into the articles. Amending this later requires a formal filing.
Registered Office Address Requirements
Your registered office is the official address where legal documents can be served. Ontario requires it to be a physical address in the province, not a PO box.
You can use your home, your accountant's office, or a commercial space. What matters is that mail reaches a real person.
If you move, you must update the registry. A stale address means you can miss legal notices, which is a problem you do not want.
Ontario Business Incorporation Cost Breakdown
The Ontario business incorporation cost has two parts: the mandatory government fee and optional extras. Most guides blur the two together, which is why founders budget for the wrong number. Here is the split.
Mandatory Government Fees
These are set by the province and paid to the Ontario Business Registry at the moment you file. They change periodically, so confirm the current amount on the official registry before you budget, do not rely on a blog post from three years ago.
- Articles of incorporation filing fee, the base fee to create the corporation. This applies whether you file a named or numbered corporation.
- Name reservation fee, only if you want to hold a name before filing. A numbered corporation skips this entirely.
A numbered corporation is the cheapest path because it avoids both the name search and the reservation step. A named corporation pays the filing fee plus the name-related costs below.
Optional Costs to Plan For
- NUANS report, required for a named corporation. Ordered through an approved search house, and priced per report. It is a hard cost of going named, not a nice-to-have.
- Name reservation, if you want to lock a name before you are ready to file.
- Annual return fee, recurs every year after incorporation, so treat it as an ongoing cost, not a one-time one.
How to Compare Quotes
When you compare providers, normalize the quote to the same scope. Ask three questions:
- Is the government filing fee included, or added on top?
- Is the NUANS report included for a named corporation?
- Is the share structure drafted for you, or do you supply it?
A quote that looks cheap often excludes the NUANS report or the share-structure work, and those are the two items most likely to cost more to fix later than to do right at filing.
How Long Does It Take to Incorporate in Ontario?
Online filings are typically processed within a few business days, and often sooner. A numbered corporation with no name search is the fastest path.
The real timeline depends on what happens before you file:
- Name search and NUANS report: a few days
- Preparing articles and share structure: same day to a week
- Registry processing: a few business days
Most founders who have their decisions ready are incorporated within one to two weeks. Founders still deciding on share classes take longer.
After Incorporation: Compliance Calendar and Tax Accounts
Getting the certificate is the easy part. Compliance is where corporations get into trouble, and it is the part most incorporation guides skip. Here is the calendar to build on day one.
Open Your CRA Accounts First
You need a business number with the Canada Revenue Agency (How to register). That number anchors your corporate tax account, your payroll account if you pay employees, and your HST account if you are registered. The corporation legally exists the moment the certificate issues, but it cannot file or remit properly until these accounts are open. Do this in the first weeks, not the first year.
The Compliance Calendar
Build these dates into a shared calendar the day you incorporate a business:
- Ontario annual return, due each year on the anniversary of your incorporation date. This is the one founders forget, because nothing arrives in the mail to remind them.
- T2 corporate return, due within six months of your fiscal year end. The tax owing is generally due earlier than the return itself, so do not use the filing deadline as your payment deadline.
- Payroll remittances, due on your remittance schedule, which depends on your payroll size. Miss these and the penalties accrue quickly.
What Happens If You Miss a Deadline
Ontario can dissolve a corporation for failing to file its annual return. That is not a scare tactic, it is the mechanism the province uses to keep the registry clean. A dissolved corporation cannot contract, bank, or defend itself properly, and reviving it costs more than filing on time would have.
CRA penalties compound quietly. A missed payroll remittance or a late T2 does not announce itself; it shows up as interest and penalties on a later notice.
Set Your Fiscal Year End Deliberately
A December 31 year end is common, but it is not the only option. A different date can align better with your busy season and give you breathing room at filing time. Decide this at incorporation, because changing it later is a formal process.
This is where professional help pays for itself. Lira Tax & Accounting provides comprehensive tax, bookkeeping, payroll, and business registration services tailored to individuals, startups, and established corporations across Canada, ensuring full compliance and financial confidence.
Common Mistakes and How to Avoid Them
The same errors show up again and again. Here are the ones we see most, and the fix for each.
| Mistake | Why It Hurts | The Fix |
|---|---|---|
| Wrong share structure | Amending articles later costs time and money | Decide share classes before filing |
| Non-resident director oversight | Fails Ontario residency rules | Confirm residency before appointing |
| Expired NUANS report | Name rejected at filing | Order the report close to filing date |
| Stale registered office | Missed legal notices | Update the registry when you move |
| Skipped annual return | Penalties and possible dissolution | Set calendar reminders at incorporation |
One more: founders often forget to register their CRA accounts after incorporating. The corporation exists, but it cannot file or remit properly until those accounts are open.
If your name gets rejected, do not panic. Amend and resubmit. If your name changes later, file the amendment with the registry and update your bank, CRA accounts, and contracts.
Incorporating is a sequence of decisions, not a single form. Get the structure, name, and directors right and the rest follows cleanly. Lira Tax & Accounting helps founders with business registration, CRA account setup, T2 corporate returns, and ongoing bookkeeping, backed by CRA authorization and more than a decade of experience. Book a consultation and start your corporation on a compliant footing from day one.
Add liratax.ca as a preferred source on Google →Frequently Asked Questions
How much does it cost to incorporate a business in Ontario?
Government fees for Ontario business incorporation cost $300 online or $500 by mail, paid to the Ministry of Public and Business Service Delivery. A NUANS name search report costs extra if you choose a named corporation. Professional service fees vary by provider and scope, so request a quote that lists government fees and service charges separately. Budget for ongoing costs too, including the annual return and any accounting or registered office services you use.
Do I need a lawyer to incorporate in Ontario?
No. You can file articles of incorporation yourself through the Ontario Business Registry. A lawyer or accountant helps when your situation is complex: multiple share classes, specialized tax planning, professional corporation rules, or a name that may face objections. Many founders use a professional to avoid errors in the articles, since correcting a filing after the certificate is issued takes time and can cost more than getting it right the first time.
What information do I need to file articles of incorporation in Ontario?
You need the corporation name or a request for a numbered name, the registered office address, the names and addresses of directors and incorporators, and the share structure. For a named corporation, include the NUANS report. You also confirm the director residency requirement: at least 25% of directors must reside in Canada. Have your Ontario Business Registry account ready and double-check spelling and addresses before submitting, because errors delay the certificate.
What do I need to do after incorporating a business in Ontario?
After you receive the certificate of incorporation, apply for a Canada Revenue Agency business number and tax accounts (corporate income tax, GST/HST, payroll if hiring). Hold the first directors' meeting, issue shares, and open a minute book for corporate records. File the Ontario annual return each year and keep the corporation's information current. Set a compliance calendar for T2 filing, GST/HST returns, and payroll remittances, and consider a bookkeeping routine from day one.
