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How to Amend Your Tax Return in Canada 2026: T1-ADJ, ReFILE & T2 Changes

“Guide on how to amend a tax return in Canada, including T1‑ADJ adjustments, T2 corporate changes, and 2026 CRA updates for small business owners and e‑commerce sellers.”

If you forgot to claim an expense, missed a tax slip or made a math error after hitting “Submit,” there is no need to panic and you definitely don’t need to fill out a brand-new tax return from scratch. You simply request a change to your existing return. The Canada Revenue Agency (CRA) just wants […]