CRA Responses & Notices: NOA, NOR, and CRA Review Letters in Ontario
CRA notices change your next step fast. Acctax reviews the letter, explains what CRA is asking for, prepares the evidence package, and submits the response through the correct CRA channel before the deadline on your notice. CRA says a
Notice of Assessment
is the summary of calculated amounts after a return is received, a Notice of Reassessment is sent only if CRA changes an assessed return, and
Submit documents online
is available through My Account, My Business Account, and Represent a Client.
CRA Notice Stress Management
We handle the high-pressure tasks so you don’t have to:
Integrated with our core Ontario services:
Why clients contact Acctax for CRA notice help
What kind of CRA notice or letter did you receive?
CRA letters usually fall into 3 groups: Notice of Assessment, Notice of Reassessment, or a review letter asking for information. CRA also utilizes specific programs like Processing Review, Matching, and Identity Protection Services.
| CRA Document Type | What it means | What CRA usually wants | Best Next Step |
|---|---|---|---|
| Notice of Assessment (NOA) | CRA finished the first assessment of the return. | Summary of refund, balance owing, and carry-forwards. | Confirm & Save |
| Notice of Reassessment (NOR) | CRA changed an already assessed return. | Review changed lines and reasons for the change. | Accept or Object |
| Review or Verification Letter | CRA wants proof before it confirms a claim. | Receipts, invoices, slips, statements, contracts. | Gather & Submit |
Notice of Assessment (NOA)
CRA’s summary of the calculated amounts for your income tax and benefit return. It confirms your refund, balance owing, and instalment information. Personal Income Tax Returns (T1) and Corporate Tax Filings in Ontario lead to this notice post-filing.
Notice of Reassessment (NOR)
This means CRA changed something on a return that was already assessed. It shifts the file from simple confirmation to decision-making. This often appears after missing support, a return adjustment, or a CRA review result.
Review & Verification Letters
These ask for proof, not a full audit file. Programs like Processing Review or Matching focus on deductions, credits, or income mismatches. GST/HST and Payroll gaps can also trigger these supporting document requests.
Acctax Approach: We reduce panic by classifying the letter first, then moving the file into the right lane: Read & Confirm → Gather & Submit → Correct & Refile → Object & Escalate.
What to do first: 15-minute triage checklist
CRA triage starts with 3 checks: tax year, changed amounts, and deadline. CRA treats business online mail as received on the date it is posted to My Business Account.
01. Confirm the Core Facts
Check these 5 items on your notice immediately:
- Tax Year: Confirm the return year or reporting period.
- Notice Date: Note the issue date or the posted date.
- Changed Amounts: Compare line items, not just the final balance.
- Reference Number: Find the case or file number in the letter.
- Deadline: Record the exact action date written on the notice.
02. Gather the Evidence Package
Receipts form the base of most review files. A complete file includes:
03. Choose the Response Path
CRA responses usually move in one of three directions:
Accept
CRA is correct. The file needs payment, confirmation, or a final upload.
Adjust
Your original return was wrong. The return needs a formal change or refiling.
Object
CRA’s decision is wrong. The file needs a formal dispute or appeal.
How to submit documents to CRA online
CRA document upload works best through the portal that matches your notice. Always ensure you have your Case Reference Number from the top-right corner of your letter before starting.
My Account
For individual tax matters and personal returns (T1).
My Business Account
For business tax, GST/HST, and payroll matters.
Represent a Client
For authorized representatives & accounting professionals.
The 4-Point Upload Checklist
CRA upload packages strictly require these four items:
- Reference Number: The specific case or file ID.
- Tax Year: The specific reporting period under review.
- Requested Proof: The exact documents CRA asked for.
- File Descriptions: Clear labels that match the issue.
Label Files Clearly
Acctax uses labels like “2023-05-12-SupplierName-Invoice.pdf”. Clear naming helps CRA agents process your file faster.
Missing a Document?
Don’t wait. Send a written explanation or substitute proof through the portal. A partial response is better than no response.
CRA review vs audit vs reassessment
These are different stages of CRA contact. A return selected for review does not automatically mean a tax audit.
CRA Review
Usually asks for proof tied to a specific claim or amount. Commonly appears through Pre-assessment Review, Processing Review, or Matching.
CRA Audit
Examines books, records, and systems more deeply. Often involves broader testing than a simple letter. Our Ontario Audit Support is vital if your file moves into this level of examination.
CRA Reassessment
The changed outcome, not the investigation stage. This tells you CRA has already changed the return; your move is now to Accept, Adjust, or Object.
If CRA made changes: your options, correct vs. object
CRA changes create three real options. Whether you are an individual or a corporation, the next move depends on whether the error was yours or the CRA’s.
| Response Path | When it fits | What happens next |
|---|---|---|
| Accept | CRA is correct | Pay, confirm, or complete submission |
| Adjust | Your original return was wrong | File a return change or reassessment request |
| Object | CRA’s decision is wrong | File a Notice of Objection (Formal Review) |
Agree: Confirm & Prevent
Acceptance closes the dispute but often reveals a weak spot in records. We connect these files to our Monthly Bookkeeping Services in Ontario to ensure the same issue does not return next year.
Wrong Return: Request Change
Personal returns use “Change your tax return,” while corporations use “Requesting a reassessment of your T2.” We review changed lines to determine if a simple filing error occurred.
Disagree: Notice of Objection
Formal disputes begin here. Corporations generally have 90 days from the notice date to object. If unresolved, the file can appeal to the Tax Court of Canada.
How Acctax handles CRA notices: our response process
We handle CRA notices through a structured 4-step workflow designed to resolve the current issue and prevent future flags.
Interpret & Map
We read the notice line-by-line to identify the notice type, tax year, changed amounts, and the specific evidence CRA is requesting.
Build the Evidence Package
We organize receipts, invoices, and contracts into a structured file, ensuring every document supports the claimed amount and timeline.
Submit & Track
Submissions are handled through the appropriate CRA portal (My Account, My Business Account, or Represent a Client) with full tracking of confirmation numbers.
Fix the Underlying Issue
We use the notice as a diagnostic tool to improve your filing system. We link this resolution directly to our ongoing services:
Why this service matters now
CRA letters become more expensive when they sit unanswered. We provide a faster read on the notice, a cleaner evidence package, and a safer submission path.
When to book urgent help:
- Deadline Pressure: The clearest reason to act immediately.
- Large Reassessments: Significant changes to your tax balance.
- Missing Support: When you cannot find the requested documents.
- Repeat Contact: CRA follows up on the same issue.
CRA notice help in Kitchener, Waterloo, & Cambridge
Lena Crescent & Franklin Boulevard
Regional support & remote Ontario services
Remote support available via secure document exchange.
