Two clocks, plus the tax payment
Reviewed September 6, 2026: a business corporation’s federal annual return is due within 60 days after its incorporation, amalgamation or continuance anniversary. The T2 filing deadline is six months after taxation year-end. Corporate tax balances are generally due two months after year-end; qualifying CCPCs can have three months when CRA’s conditions are met. Being a small corporation alone does not establish that extra month, and instalments may be required during the year.
Include ownership reporting in the corporate file
CBCA business corporations generally must file information about individuals with significant control, or ISC, with their annual return. Changes to the ISC register generally require a filing within 15 days of the register change. Keep ownership information alongside corporate records and identify who monitors changes. Do not extend this CBCA business-corporation requirement automatically to every nonprofit or provincially incorporated business; those entities need their own obligation review.
An illustrative Ottawa consulting corporation
Assume a federal consulting corporation has a June 15 anniversary and a December 31, 2025 tax year-end. Its 2026 federal annual return is due August 14. Its T2 is due June 30, 2026. The ordinary two-month tax balance date falls February 28, a Saturday, so CRA’s next-business-day rule makes March 2 the on-time payment date. If the corporation meets the three-month balance conditions, that date is March 31 instead. The accountant should confirm which payment test applies.
Prepare the right evidence for each filing
The corporate filer needs accurate registered-office, director and ownership information and authorized access. The tax preparer needs reconciled financial statements and supporting schedules, including shareholder transactions and amounts already paid to CRA. Save the annual-return and ISC confirmations separately from the T2 acceptance and payment evidence. A draft return or a debit in the bank is not proof that the intended filing reached the right authority.
Make the next year easier
Record both the anniversary and tax year-end in the business calendar, with an earlier document-preparation date for each. Bring approved accountant adjustments into the ongoing books. If the business also has Ontario registry obligations, check the applicable entity requirements rather than assuming federal incorporation replaces every provincial filing. Address changes, ownership changes and restructuring deserve attention when they happen, even if the annual deadlines are still several months away.
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