Ontario Notice of Objection — Ministry of Finance
Self-filed Notice of Objection to an Ontario Ministry of Finance assessment under any of the MOF-administered statutes: Taxation Act 2007 (for non-CRA-delegated matters), Employer Health Tax Act, Retail Sales Tax Act, Fuel Tax Act, Gasoline Tax Act, Tobacco Tax Act, Mining Tax Act, Land Transfer Tax Act, IFTA. 180-day deadline (30 days for IFTA); extension up to 1 year on impossibility. Filing is FREE. NOTE: Ontario personal income tax flows through federal CRA under the Tax Collection Agreement — use the federal Notice of Objection (Income Tax Act s.165) for that, not this letter. Plain-language wizard; UPL-safe under LSO By-Law 4.
Statute of Limitations Warning
Legal deadlines apply to your claim. You lose your right to act if you wait too long. Send notice as soon as possible.
Why this letter works:
- Cites the exact law: Automatically applies the correct state and federal statutes to your situation.
- Sets a firm deadline: Legally compels a response within the required statutory timeframe.
- Creates a paper trail: Designed to serve as Exhibit A if you need to escalate to an agency or court.
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Your Action Plan
This is the final formal demand before litigation.
Download your personalized PDF immediately after purchase and send it.
Your letter includes a firm deadline. Do not engage in informal text messages during this time.
If they miss the deadline, you have completed the required out-of-court steps. Hand this complete paper trail to a local attorney for litigation.
The Assessment You Are Objecting To
Filing preserves your right of objection. The 180-day clock under the Taxation Act 2007 (and parallel provisions in the other MOF-administered statutes) runs from the date the Notice of Assessment / Reassessment / Statement of Disallowance was mailed or personally delivered. IFTA assessments have a tighter 30-day window. If you missed the deadline, an extension up to 1 year is possible on a showing of impossibility.
This letter will cite
Taxation Act 2007 (S.O. 2007, c.11 Schedule A) — primary objection framework; parallel objection provisions in Employer Health Tax Act, Retail Sales Tax Act, Fuel Tax Act, Gasoline Tax Act, Tobacco Tax Act, Mining Tax Act, Land Transfer Tax Act; LSO By-Law 4 (UPL framing for self-represented filers).
Your letter is the substantive equivalent of any required notice-of-objection form and identifies the assessment, the disputed amount, the grounds, and the relief sought. MOF will accept the letter via online portal, mail, fax, or in-person delivery to any MOF tax office.
180-day clock under most MOF statutes. IFTA: 30 days. Extension to 1 year is possible under the relevant statute's extension provision on a showing of impossibility.
Total of tax + interest + penalty you are contesting. If you accept part of the assessment, state the unchallenged portion in the narrative.
Plain-language facts: what happened, why the assessment is wrong, what evidence supports your position.