A CRA Notice of Reassessment arrives for a corporate client — an additional $47,000 in income tax plus interest. The client has 90 days to file a formal Notice of Objection under ITA s165, failing which the right to object is lost permanently. A Notice of Objection must state facts and reasons — not a template letter. The CPA needs to gather supporting documentation, cross-reference the reassessment against filed returns, and draft a formal legal document. Typically: 4–7 hours per notice.
CRAGuard AI processes the same notice in 60 seconds. It extracts SIN, Business Number, taxpayer name, notice type, tax year, amount owed in CAD, and response deadline. Claude AI generates a formal CPA response letter citing ITA R.S.C. 1985, ETA R.S.C. 1985, CPP Act, and EIA — with taxpayer relief requests under ITA s220(3.1) where applicable.
CRA notice types handled
CRAGuard AI handles the most common CRA notices:
Notice of Assessment (NOA) — CRA's processing result. AI extracts key figures and generates an acknowledgement or dispute letter.
Notice of Reassessment (NORA) — CRA amended return. AI detects the amount at dispute and generates a Notice of Objection (ITA s165) within the 90-day deadline.
T1 / Corporate Audit Letter — CRA audit commencement. AI generates a response requesting extension and listing required documents. 30-day standard response window.
GST/HST Assessment — under ETA. AI cites excise tax legislation and generates objection or payment arrangement request.
Requirement to Pay (Garnishment) — CRITICAL. The third party named must comply or face personal liability. AI flags immediately and requires specialist counsel — no auto-draft.
Director's Liability Assessment — CRITICAL. Personal liability for corporate source deductions (CPP, EI, income tax). AI flags with red alert and specialist counsel required — no auto-draft.
Notice of Objection: the 90-day rule
Under ITA s165, a taxpayer (or their CPA acting under a signed T1013 authorization) must file a Notice of Objection with the Chief of Appeals within 90 days of the assessment date. This deadline is strict — the Tax Court of Canada has limited discretion to extend it.
A Notice of Objection must: 1. State the relevant facts 2. State the reasons for the objection 3. Be filed in prescribed form
CRAGuard AI generates a Notice of Objection draft that meets these requirements — citing ITA s165 explicitly, stating the facts extracted from the reassessment notice, and outlining the reasons based on the issues identified. The CPA reviews, verifies the facts against the client's actual records, signs, and submits via CRA's My Account portal or by registered mail.
For Director's Liability Assessments, objection is also available under ITA s165 but requires specialist tax litigation advice given the personal liability implications.
The AI pipeline: extraction, CPA briefing, draft
Step 1 — Extraction: Claude Haiku reads the CRA notice and extracts SIN, Business Number, taxpayer name, notice type, CRA office, tax year, amount owed in CAD cents, response deadline, and the specific issues CRA has raised.
Step 2 — CPA Briefing: Claude Sonnet generates a briefing note: plain-English summary, documents to gather, penalty and arrears interest exposure, CPA strategy recommendation, objection window timing, and legislation references (ITA R.S.C. 1985, ETA R.S.C. 1985, CPP Act, EIA).
Step 3 — Draft Response: Claude Sonnet generates a formal letter in CRA correspondence format. Where a Notice of Objection is appropriate, it drafts it in prescribed form under ITA s165. Includes a 6-step checklist for the CPA: fill placeholders, attach supporting docs, sign with CPA designation and provincial licence, submit via Represent a Client portal or registered mail, note 90-day objection deadline.