T2 Corporate Tax Return Canada: Filing & Deadlines

A Canadian corporation normally has two different deadlines after its fiscal year-end: pay the corporate tax balance first, then file the T2 return later. The T2 filing deadline is six months after year-end, while the balance is generally due after two months or, for a qualifying CCPC, three months.

Use the corporation tax calculator to estimate federal and provincial tax before you complete the CRA return. The calculator is a planning tool; it does not prepare or transmit a T2.

Does your corporation have to file a T2?

The CRA requires most resident corporations to file a T2 for every tax year, even when the corporation:

• had no business activity;
• owes no tax;
• is a non-profit or otherwise tax-exempt; or
• intends to dissolve after the year-end.

Registered charities and certain other entities have different returns. A non-resident corporation may also need a T2 if it carried on business in Canada, had a taxable capital gain, or disposed of taxable Canadian property.

T2 filing deadline versus payment deadline

For a December 31 year-end, the T2 is normally due June 30. The balance is normally due February 28, or March 31 when the CCPC conditions for the three-month deadline are satisfied.

The extra month is not automatic for every private corporation. The corporation must be a CCPC throughout the tax year, claim the small business deduction for the current or previous year, and satisfy the CRA’s prior-year taxable-income/business-limit test. Associated corporations apply the test across the group.

What goes into a T2 return?

The filing normally combines:

• the T2 Corporation Income Tax Return;
• the General Index of Financial Information (GIFI), which maps the financial statements to CRA codes;
• schedules for federal and provincial tax calculations;
• small business deduction, loss, dividend, capital-gain, tax-credit, or associated-corporation schedules when applicable; and
• supporting elections or certificates required for the corporation’s facts.

Alberta and Quebec administer separate provincial corporate income tax returns. The federal T2 still handles federal tax and the provincial/territorial calculations administered by the CRA.

How to file the T2 electronically

For tax years starting after 2023, most corporations must file electronically. The CRA lists exceptions for insurance corporations, non-resident corporations, corporations reporting in functional currency, and corporations exempt under section 149 of the Income Tax Act.

The usual workflow is:

1. Choose CRA-certified T2 preparation software.
2. Import or enter the year-end financial statements and complete the GIFI.
3. Complete the T2 and every required schedule.
4. Review validation messages and reconcile taxable income, instalments, and balance owing.
5. Transmit through Corporation Internet Filing and retain the confirmation number.

If an accountant or other electronic transmitter files for the corporation, the corporation authorizes that transmitter using Form T183 CORP for the tax year.

Common T2 filing mistakes

• Treating the six-month filing date as the payment date. Interest can already be running by then.
• Skipping an inactive corporation. Inactivity does not normally remove the T2 obligation.
• Assuming every CCPC gets three months to pay. The extra month depends on specific conditions.
• Leaving GIFI and schedules unreconciled. The tax return should agree to the finalized financial statements.
• Ignoring instalments. Many corporations pay monthly or quarterly instalments during the year rather than one balance after year-end.

For sales-tax filing, use the separate GST/HST return and NETFILE guide. To confirm a supplier’s registration before claiming an input tax credit, see the GST/HST number lookup guide.