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If you disagree with a Notice of Assessment or Reassessment from the Canada Revenue Agency — denied expenses, income added that is not yours, a 50% gross negligence penalty or a benefit clawback — you have a statutory right to object. Our Canadian template produces a formal notice of objection under subsection 165(1) of the Income Tax Act, served on the Chief of Appeals with issue-aware grounds, the onus framework from Hickman Motors, a numbered evidence schedule, the s.166.1 late-objection rescue and the s.225.1 collection hold positioning — with the Tax Court of Canada route mapped if Appeals confirms the assessment.
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An objection is the formal way to dispute an assessment made by the <strong>Canada Revenue Agency</strong>. It is served under <strong>subsection 165(1) of the Income Tax Act</strong>, must be in writing, and must set out the reasons for the objection and all relevant facts. A signed letter to the Chief of Appeals is a complete objection on its own — Form T400A and the "Register my formal dispute" service in CRA My Account are alternatives, not requirements. The objection moves your file from the auditor or processing centre to the CRA Appeals Division, where an Appeals Officer must reconsider the assessment with all due dispatch and vacate, confirm or vary it.
Timing is generous for individuals but unforgiving for everyone else. An individual (other than a trust) or a graduated rate estate may object up to the <strong>later</strong> of one year after the return's filing-due date and 90 days after the notice was sent; corporations and trusts get 90 days only. Miss the window and section 166.1 allows an extension application within one further year — you must show you could not act or had a bona fide intention to object, that an extension is just and equitable, and that you applied as soon as circumstances permitted. After that year, the assessment generally stands however wrong it is.
A well-built Canadian objection does three jobs at once. It states grounds the Appeals Officer can act on — engaging the actual issue, whether that is a denied deduction, unreported-income dispute, a subsection 163(2) gross negligence penalty (where the burden sits on the Minister, not you) or an audit reassessment. It schedules the evidence, because in Canadian tax disputes the taxpayer must "demolish" the Minister's assumptions with at least a prima facie case (Hickman Motors Ltd v Canada, [1997] 2 SCR 336). And it positions collection: once an individual income tax objection is served, section 225.1 restricts CRA legal collection of the disputed amount until 90 days after the decision — though interest keeps compounding daily and set-off of refunds continues.
The letter follows the structure a CRA Appeals Officer works through — taxpayer, assessment, time limit, outcome, grounds, evidence — and adapts to the kind of dispute you are raising.
Choose denied expenses or credits, added income, a gross negligence penalty, a benefit clawback or an audit reassessment — the Expert grounds clause writes the matching legal framework around your facts.
The letter positions the s.165(1) deadline for your taxpayer type — individuals and graduated rate estates get the longer of one year from the filing-due date and 90 days from the notice.
A point-by-point rebuttal of the assumptions behind the assessment, built on the Hickman Motors "demolish" framework and Anchor Pointe — what was assumed, why it is wrong, which document shows it.
A numbered, dated list of the records supporting each ground — the relevant facts s.165(1) requires, and the record relied on if the matter reaches the Tax Court of Canada.
For s.163(2) penalties — the greater of $100 and 50% of the understated tax — the letter invokes the Venne standard and puts the burden where s.163(3) places it: on the Minister.
Where the window has passed, the Expert section adds a s.166.1 extension application with the statutory conditions argued, and notes the s.166.2 Tax Court fallback.
Asks the CRA to confirm the s.225.1 restriction on collecting the disputed amount — with the honest caveats: source deductions and GST/HST are not covered, set-off continues, and interest accrues at 7% compounded daily.
Records whether you will appeal to the Tax Court of Canada under the informal procedure (disputes up to $25,000 per year) or the general procedure, within 90 days of the decision.
Letterhead, the Appeals Intake Centre as recipient, subject line, numbered clauses and a single-signer block — ready to mail or to upload through My Account.
Five steps from Notice of Assessment to served objection.
You need the taxation year, the date on the Notice of Assessment or Reassessment and any reference number. Your objection clock runs from that date — individuals also get one year from their filing-due date.
Choose the outcome — reassess and reduce, vacate, or reassess on the correct basis — and add two or three sentences on why the assessment is wrong. The detail comes next.
Pick the issue — expenses, income, penalty, benefit or audit — and the template writes the statutory framework around your facts, with the correct figure stated.
List each assumption the CRA made, why it is wrong and the document that proves it, then schedule the evidence. That is how the onus shifts under Hickman Motors.
Mail the letter to the Chief of Appeals at the Appeals Intake Centre in Sudbury, or register the dispute in CRA My Account and upload it. Keep a dated copy — the service date fixes whether you are in time.
Four things that make our templates more thorough than AI-generated drafts and more current than static template libraries.
Drafted with legal expertise for each jurisdiction, far more thorough than AI-generated drafts that copy generic clauses across borders.
Templates carrying statute references are continuously updated as the law changes. Your document always reflects the current legal framework.
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CRA objections sit inside a structured Canadian review chain with strict, money-protecting time limits.
This template provides general information for Canadian taxpayers and is not tax or legal advice. For complex disputes — large amounts, gross negligence allegations, statute-barred years or transfer-pricing issues — get advice from a Canadian tax lawyer or CPA. The Taxpayers' Ombudsperson handles complaints about how the CRA has treated you; the objection handles whether the assessment is right.
Reviewed for Canadian tax law
A taxpayer who objects to an assessment may serve a notice of objection "in writing, setting out the reasons for the objection and all relevant facts" (Income Tax Act, s.165(1)). Individuals (other than trusts) and graduated rate estates may serve it up to the later of one year after the filing-due date and 90 days after the notice was sent; in any other case the limit is 90 days. On receipt, the Minister must reconsider the assessment with all due dispatch and vacate, confirm or vary it or reassess (s.165(3)). The CRA's service standard for low-complexity objections is 180 calendar days.
Canadian tax assessments rest on the Minister's assumptions of fact. In Hickman Motors Ltd v Canada, [1997] 2 SCR 336, the Supreme Court of Canada confirmed the taxpayer's initial onus is to "demolish" those assumptions by making out a prima facie case, after which the burden shifts to the Crown; and where the assumed facts are peculiarly within the CRA's knowledge, the ordinary onus adjusts (Canada v Anchor Pointe Energy Ltd, 2007 FCA 188). For gross negligence penalties the statute goes further: s.163(3) puts the burden of justifying the penalty on the Minister, and Venne v The Queen (1984) requires "a high degree of negligence tantamount to intentional acting".
For individual income tax, serving an objection restricts CRA legal collection of the disputed amount — no court certificate, no requirement to pay, no seizure — until 90 days after the decision (Income Tax Act, s.225.1). The protection has hard edges Canadians should know: it does not cover payroll source deductions, it does not cover GST/HST debts (which arise under the Excise Tax Act and stay collectible), large corporations must pay half on assessment, and the CRA may still apply your refunds and credits against the debt. Interest accrues throughout at the prescribed rate plus 4% — 7% per annum for the April–June 2026 quarter, compounded daily.
An application to extend the time to object can be made within one year after the objection deadline. The taxpayer must show that within the objection period they could not act or instruct another, or had a bona fide intention to object; that an extension is just and equitable; and that the application was made as soon as circumstances permitted (s.166.1). If the CRA refuses — or stays silent for 90 days — the taxpayer may apply to the Tax Court of Canada under s.166.2. After the one-year extension window closes, the right to dispute is generally lost for good.
If the Appeals Division confirms or varies the assessment, the taxpayer may appeal to the Tax Court of Canada within 90 days (s.169) — and may appeal directly once 90 days pass without a decision. The informal procedure covers disputes of $25,000 or less in federal tax and penalties per taxation year (excluding interest) or losses up to $50,000, with relaxed evidence rules. For a GST/HST assessment, use our GST/HST notice of objection template; to cut the penalties and interest themselves, our CRA taxpayer relief request; and to manage the balance while you dispute it, our CRA payment arrangement request.
Create your CRA notice of objection in minutes: issue-aware grounds, the Hickman Motors onus table, a numbered evidence schedule and the s.225.1 collection positioning, in formal Canadian letter format. Download the PDF free, or unlock Expert for the full grounds, assumptions and collections sections.
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