CRA Letter Overview

What a CRA letter usually means for a Canadian corporation (and what to do first)

You opened a CRA envelope on a corporate matter. It feels urgent. Often it’s administrative — a request for records, a notice of assessment, a filing or balance reminder. The useful move is the same either way: identify the type, note the deadline, and answer what’s asked without inventing a story.

General education for Canadian owner-managers. Not legal, tax, or accounting advice. Your letter and facts control.

A letter is not automatically an audit

Canadian corporations file returns, remit amounts, and keep books. CRA communicates with notices, requests, and statements. A letter often means the Agency needs clarity or a reply by a printed date — not that you’ve been found wrong.

Ignoring it creates follow-up that’s harder to unwind. Panicking into a long phone call without the letter in front of you creates inconsistent notes on the matter. Aim for orderly: type, deadline, records, factual reply.

Common types (high level)

Notices of assessment or reassessment

These show how CRA assessed a return or adjusted prior figures — balances, refunds, changed amounts. First job: compare the notice to your situationd return and working papers. Don’t assume it’s fully right or fully wrong without checking.

Information or document requests

Specific asks — invoices, contracts, bank statements, explanations of transactions. Usually time-sensitive. Inventory what was requested, what you have, and what’s missing. A labelled package beats a rushed partial dump.

Filing or balance reminders

Outstanding returns, instalments, or balances. Confirm whether it’s already filed or paid, whether the statement is stale, or whether something is genuinely open.

Review or audit-related correspondence

Some letters say a file is under review or an auditor is assigned. Immediate work is still: understand scope, preserve records, answer defined questions. Your mental escalation doesn’t replace the letter’s actual scope.

Collections-related notices

Unpaid balances can bring collections correspondence. Treat these as distinct from pure information requests. Don’t make informal payment promises you can’t keep.

Unsure which category? Treat it as a formal ask for attention until you’ve matched it to your filings.

First steps that usually help

1. Keep the original. Envelope too if it has a postmark. Scan a clean copy into the corporation’s tax correspondence folder.
2. Read it twice with a notepad. Account number, tax year(s), deadline, reference numbers, every specific ask.
3. Confirm authenticity through channels you already trust. Prefer known CRA account access over unexpected email links.
4. Map asks to records. Ledgers, invoices, bank feeds, contracts, prior returns — what answers each point.
5. Respect the deadline before you debate substance. Extensions aren’t automatic. Plan staged replies only where the letter type allows it.
6. Draft a factual response. Answer what was asked. Label exhibits. Skip motive theories.
7. Log what you sent. Date, channel, proof of transmission. Keep a copy of exactly what went out.

What not to do

• Ignore it because the amount looks small or the year feels old.
• Call in a panic without the letter in front of you.
• Alter or “clean up” records after the fact. Preserve what exists; reconstruct gaps honestly if needed.
• Send every document you own. Over-production expands scope.
• Rely on verbal assurances alone for material points — get written confirmation through the proper channel.

When owners usually get help

Straightforward administrative items with clear records can often be handled in-house. Help is worth considering when the letter spans multiple years or related parties, records are missing, notice figures don’t match the filed return, the deadline is tight, or a reply could affect other filings.

Early help is about process quality — accurate facts, coherent exhibits, consistent explanations. Nobody can guarantee how CRA will conclude a file.

FAQ

Does a CRA letter always mean we’re under audit?

No. Many letters are assessments, reminders, or information requests. Read the stated purpose and scope first.

Should we reply immediately with everything we can find?

Deadlines matter. Relevance matters more. Prefer a complete, labelled response to the items requested over a dump of unrelated files.

What if we disagree with a notice?

Compare it to your situationd position and support. Dispute and objection pathways have rules and timelines that depend on the notice type — see also Notice of Objection. This article doesn’t outline those procedures in full.

Closing

A CRA letter is a signal to organize, not a verdict. Identify the type, respect the deadline, match records to requests, keep a clean send trail. Orientation only — not advice for your particular file.