Accountant Made a Mistake and I Got a CRA Penalty — What to Do in Canada

CRA Penalties — Who Is Legally Liable?

The most important thing to understand is this: CRA's relationship is with your business, not your accountant. When CRA issues a penalty or interest charge, they issue it against your business number. They do not care who prepared the return or why it was wrong. The obligation to pay rests with you.

This is not the end of the story — you have two separate paths to pursue — but understanding the legal position first prevents a costly mistake. Some business owners receive a CRA penalty notice and assume the accountant will deal with it. In reality, unless you actively engage both CRA (for penalty relief) and your accountant (for compensation), the penalty compounds with interest while nothing gets resolved.

The two paths run in parallel:

• Path 1 — CRA: Apply for penalty and interest relief using the Taxpayer Relief Provisions. This is your fastest route to reducing or eliminating the financial damage. CRA grants relief regularly when circumstances are documented
• Path 2 — Your accountant: Send a formal written demand for compensation. Most qualified accountants carry Errors and Omissions (E&O) insurance specifically for this situation. A professional negligence claim is possible but rarely needed — most cases are resolved through insurance without litigation

Common Accountant Mistakes That Trigger CRA Penalties

Understanding what type of error occurred tells you which CRA process to use and how strong your relief application is. Most penalties fall into one of these categories:

Late-filing penalties are the most common and the most successfully relieved through the Taxpayer Relief Provisions. Gross negligence penalties — which require CRA to show the taxpayer knowingly or recklessly made a false statement — are rarely applied to ordinary bookkeeping errors, but if your accountant claimed deductions or credits they had no reasonable basis for, this is a risk to discuss with a tax lawyer.

How to Apply for CRA Penalty and Interest Relief

The Taxpayer Relief Provisions (formerly known as the Fairness Provisions) allow CRA to cancel or waive penalties and interest in circumstances that meet certain criteria. The process is not automatic — you must apply, document, and make the case.

Step 1 — Fix the underlying error first. Before applying for relief, the return must be corrected. File the amended T2 using a T2 adjustment request (T2ADJ), correct the HST return through a CRA My Business Account adjustment, or file the missing returns. Penalty relief applies to the penalty itself — it does not erase the underlying tax owing or the obligation to file correctly.

Step 2 — File form RC4288. Download the Request for Taxpayer Relief form from the CRA website. The key sections to complete carefully are:

• A full chronological account of what happened — when you engaged the accountant, what you understood they were handling, when the error came to light, and what you did on discovering it
• Evidence of your accountant's role — engagement letter, invoices paid, email correspondence showing you provided the necessary information on time
• Evidence that the error was the accountant's fault, not yours — emails showing you sent documents, any written confirmation that returns would be filed by a certain date
• Confirmation that the underlying return has now been corrected or filed

Step 3 — Understand what CRA typically relieves. CRA's own guidelines say they will generally waive penalties on a first-time relief request where the taxpayer has a good compliance history and the circumstances that caused the failure were outside their control. A well-documented accountant error qualifies. Interest relief is granted more selectively — CRA can waive interest that accumulated during a period when the error was caused by incorrect professional advice or administrative delay, but they do not routinely waive all interest.

How to Correct the Underlying Error

The correction route depends on the type of error:

• Wrong amounts on a filed T2: File a T2 adjustment request (T2ADJ) through CRA My Business Account or by paper. You can adjust any line on the return. The reassessment will confirm the corrected tax owing, penalties, and interest — your relief application runs alongside this
• HST/GST errors: Log in to CRA My Business Account and use the Adjust a Return function under your HST/GST account. For errors spanning multiple periods, each period must be adjusted separately
• Missing payroll remittances: Remit the outstanding amounts immediately through your financial institution using CRA's payroll remittance form. Call CRA business enquiries (1-800-959-5525) to confirm the exact amount owing including interest before remitting — a partial payment does not stop interest accruing on the balance
• Unreported income or overclaimed deductions: Consider the Voluntary Disclosures Program (VDP) rather than a standard amendment. VDP protects you from prosecution and gross negligence penalties when you proactively disclose errors that CRA has not yet identified. It is not available once CRA has started an audit or review of the relevant period
• Missing T4 or T4A slips: File the missing slips through CRA My Business Account Represent a Client or the employer slip filing portal. Late filing penalties apply per slip per day but can be included in a relief application

Can You Recover the Penalty from Your Accountant?

Potentially yes — but through a specific process that most business owners do not know exists:

Step 1 — Send a formal written demand. Before any legal action, send your accountant a letter by registered mail stating: the specific error they made, the CRA penalty and interest amount it caused, the date the error was identified, and a demand for reimbursement within 30 days. This letter triggers their E&O insurance claim process and is required before any insurer will engage.

Step 2 — Professional negligence — what you must show. A successful professional negligence claim requires proving four elements:

• The accountant owed you a duty of care (established by your engagement agreement)
• They breached that duty by falling below the standard expected of a competent accountant in the same circumstances
• Their breach directly caused the penalty (not some other factor — for example, if you provided incomplete records, causation becomes disputed)
• You suffered a quantifiable financial loss (the penalty and interest amounts)

Step 3 — E&O insurance route. CPAs in Canada are required to carry professional liability insurance through their provincial CPA body. When you submit a formal written demand, your accountant's insurer typically responds directly and the claim is resolved without litigation in most cases. Keep all documentation — the engagement letter, your communications, the CRA penalty notice, and evidence of the error.

What you cannot recover from your accountant: If you signed the return yourself (as the corporate director or proprietor) and CRA finds gross negligence on your part — separate from the accountant's error — your recovery options narrow significantly. This is why first fixing the error and applying for CRA relief is always the priority over litigation.

How to Prevent This From Happening Again

Most accountant errors that lead to CRA penalties originate at the bookkeeping level — inaccurate monthly records that produce wrong figures on the returns. A CPA working from clean, reconciled monthly books makes far fewer errors than one reconstructing a year of transactions at filing time. Structuring your finance function correctly prevents this cycle:

• Separate bookkeeping from CPA work: A bookkeeper handles monthly transaction coding, HST reconciliation, and payroll. Your CPA reviews a clean package at year-end and files. When these functions are separated, errors are caught at the bookkeeping stage before they reach a filed return
• Monthly reconciliation as a control: A bookkeeper who reconciles bank accounts every month against your HST return will catch a coding error in February — not in October when CRA issues a reassessment. Monthly closes are the earliest warning system
• Written scope agreement: Every engagement — bookkeeping and CPA — should specify in writing exactly what each party will handle and by when. Gaps in scope are where errors hide. If nobody's written scope includes HST return preparation, nobody is doing it
• No single point of failure: A solo accountant managing everything — bookkeeping, payroll, HST, T2 — creates a situation where one person's illness, distraction, or overload produces the exact problem described in this article. A firm or team structure means coverage exists when one person cannot deliver

An overseas Indian CA firm at C$10–C$18/hr handles the monthly bookkeeping layer — transaction coding, HST return preparation, payroll remittances, T4 preparation — and delivers a clean package to your CPA at year-end. Your CPA spends 30 minutes reviewing rather than reconstructing, and the opportunities for the kind of error that generates a CRA penalty letter are dramatically reduced.

Frequently Asked Questions