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When is your corporate tax actually due? Your corporation may have six months to file its T2 return, but its tax payment can be due much earlier. Learn the key corporate tax filing and payment deadlines Canadian business owners should know.
One of the most common areas of confusion for incorporated business owners is the difference between the corporate tax filing deadline and the corporate tax payment deadline.
A Canadian corporation generally has six months after its fiscal year-end to file its T2 Corporation Income Tax Return. However, any remaining corporate income tax is normally due much earlier, generally two or three months after year-end.
For incorporated professionals and business owners in Mississauga and across the GTA, understanding this distinction can help avoid unnecessary interest and late-filing penalties.
When Is a Corporate Tax Return Due in Canada?
A corporation must generally file its T2 Corporation Income Tax Return within six months after the end of its tax year. For a corporation, the tax year is generally its fiscal year. CRA: When to file your corporation income tax return
| Corporate Year-End | T2 Filing Deadline |
|---|---|
| December 31 | June 30 |
| March 31 | September 30 |
| June 30 | December 31 |
| August 31 | February 28, or February 29 in a leap year |
If the corporation's year-end does not fall on the last day of a month, the return is generally due on the same calendar day six months later. For example, a September 23 year-end would normally result in a March 23 filing deadline. CRA filing deadline guidance
If the deadline falls on a Saturday, Sunday or public holiday recognized by the CRA, the return will generally be considered filed on time if received by the CRA on or before the next business day. CRA T2 Corporation Income Tax Guide
The Important Difference: Filing Deadline vs. Tax Payment Deadline
Having six months to file the corporate tax return does not mean a corporation has six months to pay its corporate taxes.
This is one of the most important deadlines for business owners to understand.
Corporate income taxes are generally payable within two months after the corporation's year-end. Certain Canadian-controlled private corporations (CCPCs) can qualify for a three-month payment deadline. CRA: Balance-due day
Consider a corporation with a December 31 year-end:
- T2 corporate tax return: generally due June 30
- Corporate tax balance: generally due February 28 or 29
- Qualifying CCPC corporate tax balance: may instead be due March 31
Therefore, waiting until June to prepare the corporate tax return can result in several months of interest if tax was owing and no sufficient instalments were previously paid.
Do All CCPCs Get Three Months to Pay Their Corporate Tax?
Not necessarily. The three-month balance-due date is available only when specific conditions are met.
Among other requirements, the corporation must generally:
- have been a CCPC throughout the tax year;
- have claimed the small business deduction for the current or previous tax year; and
- meet the applicable previous-year taxable income and business limit conditions, including rules for associated corporations.
It is therefore safer not to assume that every small incorporated business automatically receives three months to pay. CRA balance-due day conditions
Example: December 31 Year-End Corporation
Assume an Ontario professional corporation has a December 31 year-end and qualifies for the three-month payment deadline. Its timeline would generally look like this:
- December 31: Corporate fiscal year ends.
- March 31: Remaining corporate income tax is generally due, subject to instalments already paid.
- June 30: T2 corporate income tax return is due.
This creates an important practical issue: the corporation may need to estimate and pay its corporate tax before the final T2 return is completed. Your accountant can normally estimate the balance based on the corporation's accounting records and instalments already paid.
What If the Corporation Did Not Earn Any Income?
A common misconception is that an inactive corporation, or a corporation with no tax owing, does not have to file a corporate tax return.
Generally, Canadian resident corporations must file a T2 return for every tax year even if:
- the corporation had no business activity;
- there was no income;
- the corporation incurred a loss; or
- no corporate income tax is payable.
CRA specifically includes inactive corporations within the T2 filing requirement, subject to limited exceptions for certain entities such as registered charities and specified tax-exempt corporations. CRA: Corporation income tax return
Simply leaving a corporation inactive does not terminate its annual corporate tax filing obligations.
What Happens If a Corporate Tax Return Is Filed Late?
Where a corporation has unpaid tax and files its T2 return late, CRA's standard late-filing penalty is generally 5% of the unpaid tax at the filing deadline, plus 1% of the unpaid tax for each complete month the return is late, up to a maximum of 12 months.
Higher penalties can apply in certain repeated late-filing situations. In addition, interest may already have accumulated because the corporate tax payment deadline generally occurs several months before the T2 filing deadline. CRA: Avoiding penalties
Note: This is why filing late and paying late are two different compliance issues.
What If There Is No Tax Owing?
The normal late-filing penalty described above is calculated based on unpaid tax. Therefore, a corporation with no unpaid tax would generally not have that particular balance-based late-filing penalty.
However, that does not eliminate the corporation's legal obligation to file its T2 return. A corporation that continually fails to file can still face CRA compliance action, demands to file and other consequences. Filing outstanding returns can also be necessary before dealing with matters such as corporate dissolution, refunds or certain CRA account issues.
Do Corporations Have to File Their T2 Electronically?
For tax years beginning after 2023, corporations are generally required to file their T2 returns electronically, subject to limited exceptions. CRA can impose a penalty for failing to electronically file when electronic filing is required. CRA: Corporation income tax return
For most incorporated small businesses and professional corporations today, electronic filing should therefore be treated as the normal filing method.
What About Corporate Tax Instalments?
Some corporations are required to pay their corporate income tax throughout the year in instalments rather than waiting until the year-end balance-due date. Corporate instalments are generally paid monthly, although qualifying CCPCs may be eligible to make quarterly payments. CRA: Corporation instalment dates
This is separate from the T2 filing deadline and is an important subject in its own right. We will cover CRA instalment requirements for corporations, individuals and GST/HST in a separate article.
A Few Common Corporate Tax Deadline Questions
These are two different deadlines. The T2 return is generally due six months after year-end. The corporate tax balance is generally due two months after year-end, although qualifying CCPCs may have three months.
The T2 filing deadline is generally June 30 of the following year. However, the tax itself will normally be due earlier, generally by the end of February or March depending on whether the corporation qualifies for the three-month balance-due date.
Generally, yes. An inactive resident corporation normally continues to have an annual T2 filing requirement even if it earned no income and owes no tax.
Generally, no. If your T2 filing deadline is six months after year-end but your payment deadline is two or three months after year-end, waiting until the filing deadline could result in interest on the unpaid balance.
When a CRA filing deadline falls on a Saturday, Sunday or recognized public holiday, the return is generally considered on time if CRA receives it by the next business day.
Potentially, yes. If the corporate tax payment deadline is approaching, an estimated payment can often be made based on available accounting information. Any difference can then be addressed once the return is finalized. Waiting for the completed T2 return does not extend the tax payment deadline.
Planning Ahead Can Prevent an Expensive Timing Mistake
The most important point for incorporated business owners is simple: the date your corporate tax return is due and the date your corporate tax must be paid are normally not the same.
Keeping your bookkeeping current and providing year-end information to your accountant reasonably soon after the fiscal year-end can make it easier to estimate taxes, determine whether instalments were sufficient and avoid unnecessary CRA interest. This is particularly important for growing businesses and professional corporations where taxable income can change materially from one year to the next.
How Source Accounting Can Help
Source Accounting Professional Corporation assists incorporated businesses, professional corporations and business owners with corporate accounting, bookkeeping, tax compliance and tax planning. We work with clients in Mississauga, Toronto, Brampton, Oakville, Milton and surrounding areas across the GTA. Proper year-end planning can help ensure that both corporate tax payment and filing deadlines are identified early rather than after interest or penalties have already arisen.
This article is intended for general informational purposes only and does not constitute tax, accounting or legal advice. Corporate tax deadlines and payment requirements can depend on the corporation's particular circumstances, including its CCPC status, associated corporations, taxable income, instalment obligations and other factors. Professional advice should be obtained based on your specific situation.
