Canadian tax guides
Written to answer the question you actually searched, with a link to the Canada Revenue Agency (CRA) or Income Tax Act source behind every claim. No dollar estimates, no “you could be owed thousands” — just what the rule is and where it lives.
The 10-year rule: how far back you can fix a Canadian tax return
Canada lets individuals ask the Canada Revenue Agency (CRA) to reassess a personal return up to 10 calendar years back. Which years are still open, which channel reaches them, and the deadlines that are shorter than 10 years.
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Commonly missed Canadian tax credits and deductions
The credits and deductions Canadians most often leave unclaimed — what each one is, who it applies to, and the Canada Revenue Agency (CRA) form or line it belongs on.
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Retroactive tax deadlines in Canada, credit by credit
There is no single retroactive deadline. The Canada Child Benefit, the Disability Tax Credit, pension splitting and capital losses each run on a different clock — here they are side by side.
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Home renovation tax credits in Canada
The two federal renovation credits plus the three provinces that add their own — and the eligibility difference between BC and New Brunswick that catches most people out.
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Benefits a past-return review often surfaces
The Canada Groceries and Essentials Benefit (formerly the Goods and Services Tax/Harmonized Sales Tax, or GST/HST, credit), Canada Child Benefit and Canada Workers Benefit are calculated from your filed return — so a return that was wrong, or never filed, can suppress payments for years.
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Uncashed Canada Revenue Agency (CRA) cheques
Over a billion dollars sits in CRA cheques that were issued and never cashed. The payment is never forfeited, though an old cheque may no longer be bankable. How to check whether any of it is yours.
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More guides are in progress. We publish one when it has something specific to say — not to fill a grid.