🔎 Reassessments & Adjustments to Your T2 Corporation Tax Return

The Canada Revenue Agency (CRA) can reassess or adjust a corporation’s T2 Income Tax Return within specific time limits. Reassessments may affect tax, interest, and penalties depending on circumstances such as requests from the taxpayer or audit results.

📅 When CRA Can Reassess

• Normal reassessment period: Usually within 3 years for CCPCs (Canadian-controlled private corporations) and 4 years for other corporations from the date of the original notice of assessment.
• Extended reassessment period: Can add up to 3 more years in cases such as carrying back losses or foreign affiliate transactions.
• Unlimited reassessment: If there’s evidence of misrepresentation, fraud, or a filed waiver extends the period.

📝 How to Request a Reassessment

You can request a reassessment electronically using certified tax software or by mail:

• Submit revised bar codes using commercial tax software.
• Write to your tax centre with corporation name, Business Number (BN), tax year and supporting documents (e.g., revised financials or schedules).

To carry back a loss or credit, use relevant schedules such as Schedule 4, Schedule 21, Schedule 31, and Schedule 42.

📄 Useful CRA Guides & Forms

• T4012 – T2 Corporation Income Tax Guide: official CRA guidance on preparing and filing T2 returns.
• T2 filing requirements and what impacts reassessment periods.

🛠️ Practical Tips for Businesses

• File your T2 return on time to avoid penalties — typically within 6 months after fiscal year-end.
• Maintain detailed records each year to support potential future adjustments.
• If disputing a reassessment, consider filing a notice of objection using form T400A.

📣 Final Notes

Reassessments can significantly affect a corporation’s tax liability. CRA may initiate them automatically or upon request, so staying informed about deadlines and requirements is crucial for compliance and planning.