Author: Igor Kastelyanets

For most individual taxpayers, the chance of being selected for a full CRA audit in a given year is generally under 1% based on publicly reported CRA audit activity compared with the volume of returns filed. That said, “audit” is often used to describe several different CRA processes. Understanding the difference – plus knowing common audit triggers – helps you file more confidently and respond calmly if the CRA contacts you.

Why CRA audit odds are usually under 1%

Canada’s tax system is based on self-assessment, so the CRA uses electronic analysis, third party information, and risk-based selection to decide which files deserve closer attention.
In recent CRA planning and results documents, the overall audit volume is a small fraction of the number of individual returns filed – so the typical filer’s annual audit odds are usually well under 1%.
Keep in mind, though: the CRA may still select returns to verify specific claims, confirm information, or measure non compliance through random sampling.

Audit vs review: what most people actually experience

A CRA review is not the same as a full audit. Reviews are often targeted – meaning the CRA asks for receipts or documents to support specific items on your return. The CRA runs multiple review programs before or after assessment, and one of them specifically compares your return to third party information (for example, employers or financial institutions).

If you don’t respond to a review request, the CRA may adjust your return and deny the claim.

Common CRA audit triggers and review red flags

The CRA does not publish a single public “trigger list,” and selection is risk-based. Still, these patterns are commonly associated with reviews or audits:

• Slip mismatches or missing income: If what you reported doesn’t match third party information, the CRA’s Matching Program may flag it.
• Large, unusual, or first time claims: Reviews often focus on deductions and credits that require documentation. Tax experts commonly mention items like moving expenses, large interest deductions, or other unusually large claims as review magnets.
• Real estate reporting issues: The CRA publicly identifies multiple risk areas in real estate compliance, including property flipping, unreported gains, and improper principal-residence reporting.
• Inconsistencies and repeat adjustments: Prior errors, repeated changes, or inconsistent reporting year to year can increase scrutiny.
• Requests to change a return without support: The CRA’s Request Verification Program reviews change requests to ensure they’re allowable and properly supported.

When a tax lawyer can help

Many reviews are routine. However, a tax lawyer can be especially helpful when:
• You receive a broad audit notice (not just a narrow request for a specific receipt).
• The CRA proposes significant reassessments, penalties, or suggests misrepresentation.
• Your case involves complex business records, real estate transactions, or cross-border issues.
• You want strategic help filing a formal dispute (Notice of Objection) or communicating with the CRA.

GST looks simple on paper: 5% federal tax on most goods and services. In real life, GST/HST issues are one of the fastest ways businesses end up with CRA reassessments, denied refunds, penalties, and interest.

This guide covers:

• what GST is (and when it’s actually HST, not GST)
• the $30,000 “small supplier” trap
• taxable vs zero‑rated vs exempt (and why this matters for ITCs)
• how to charge, claim, file, and remit correctly
• the CRA’s most common audit pressure points

1. What GST Really Is

GST is a consumption tax that applies to most property and services supplied in (or imported into) Canada. Businesses generally act as the CRA’s “middleman”: they collect GST/HST on sales and can usually recover GST/HST paid on business expenses through input tax credits (ITCs).

2. GST vs HST: Why Your Province Isn’t the Whole Story

Canada has:

• GST (5%) in non-participating provinces/territories, and
• HST (combined federal + provincial rates) in participating provinces.

3. The 3 Tax Statuses That Decide Almost Everything

Before you talk about “GST,” you need to classify the supply:

3.1 Taxable supplies

Most supplies are taxable at 5% GST or the applicable HST rate.

3.2 Zero-rated supplies

These are taxable at 0% (so you charge no GST/HST), but they still count as taxable supplies and typically still allow ITCs. Example: many basic groceries are zero-rated.

3.3 Exempt supplies

No GST/HST is charged, and ITCs are generally not available for costs related to exempt supplies.

This is where people get burned: “no tax to the customer” can mean zero‑rated (ITCs usually allowed) or exempt (ITCs usually denied). Getting this wrong can wipe out years of ITCs in an audit.

4. Do You Have to Register? The $30,000 Rule (With a Big Catch)

Most businesses register when they stop being a small supplier.

You generally must register if you make taxable supplies and you are not a small supplier.

There are generally two ways you can cross the $30,000 threshold:

1. You exceed $30,000 in a single calendar quarter
    You must charge GST/HST on the very supply that pushed you over $30,000, and your effective registration date is no later than that day.
2. You exceed $30,000 over the last four consecutive calendar quarters (but not in one quarter). You stop being a small supplier at the end of the month after the quarter you exceeded $30,000, and you must register and start charging from that point.

Special case – taxi and ride‑sharing drivers: If you supply taxable passenger transportation as a self‑employed taxi operator or commercial ride‑sharing driver, registration is mandatory even if you’re under $30,000.

5. What Happens If You Should Have Registered… But Didn’t?

This is the classic GST nightmare:

• You pass $30,000 and don’t register.
• You keep charging customers “normal prices” (no GST/HST line item).
• CRA audits and says: you should have been charging and remitting.

Result: the CRA can assess you for unremitted GST/HST, plus interest and penalties, and you may not be able to go back to customers to collect it.

6. Charging the Right Rate: The “Place of Supply” Problem

To charge the correct tax, you need two answers:

1. What type of supply is it? (taxable, zero‑rated, exempt)
2. Where is it made? (place of supply determines the GST vs HST rate)

7. ITCs: How Businesses Get GST/HST Back (And How CRA Denies Them)

If you’re registered, you can generally claim input tax credits (ITCs) for GST/HST paid or payable on purchases used in your commercial activities.

7.1 Documentation is non‑negotiable

CRA can deny ITCs if you can’t produce the required supporting info (for example, supplier name, date, amount, and – above certain thresholds – registration details).

7.2 Mixed-use businesses must apportion

If you have both commercial (taxable/zero‑rated) and non‑commercial/exempt activities, you may need to allocate GST/HST and claim only the portion related to commercial use.

7.3 New registrants: you may get ITCs on what you already own

When you register, you may be able to claim ITCs for certain inventory/capital property on hand at registration – but there are limits, and services used before registration are treated differently.

7.4 Record retention

You generally must keep GST/HST records for 6 years from the end of the year they relate to.

8. Filing and Paying GST/HST: Deadlines That Matter

Once registered, you must file a return every reporting period, even with no activity (a “nil return”).

8.1 Mandatory electronic filing

For reporting periods ending in 2024 and later, almost all registrants must file GST/HST returns electronically (charities and selected listed financial institutions are the main exceptions). Paper filing can trigger a penalty.

8.2 Filing & payment deadlines

• Monthly/quarterly filers: deadline is 1 month after the reporting period ends.
• Annual filers: deadlines depend on fiscal year-end and business income. For example, if your fiscal year-end is Dec 31 and you have business income, CRA lists Apr 30 (payment) and Jun 15 (filing).

8.3 Instalments (annual filers)

If you file annually and your prior-year net tax was $3,000 or more, you may need to make quarterly installment payments during the year.

9. The CRA Audit Traps That Cause the Most Damage

Here are the GST/HST issues that most commonly spiral:

• Missing the $30,000 threshold (especially the “single quarter” rule)
• Treating exempt supplies like zero-rated (or vice versa)
• Claiming ITCs without compliant invoices/records
• Charging the wrong rate because of place-of-supply confusion
• Filing late, skipping nil returns, or filing on paper when e-filing is mandatory

10. Two “GST Doesn’t Care” Situations: Directors and Trust Money

If you run a corporation, GST/HST can become personal.

CRA’s directors’ liability guidance explains that directors can be held personally liable for failures relating to GST/HST under section 323 of the Excise Tax Act, with a due diligence defence and other statutory requirements (including timing rules).

11. If You’ve Made Mistakes, Don’t Guess – Fix It Properly

If you suspect you should have registered, under-charged, over-claimed ITCs, or missed filings, the best approach is usually:

1. quantify the exposure (period-by-period),
2. get compliant going forward, and
3. consider whether a voluntary disclosure is available before CRA contacts you.

12. When a Tax Lawyer Helps Most

GST/HST problems are rarely just “paperwork.” Legal help matters most when:

• you’re facing a CRA audit or reassessment,
• GST is tied to real estate, platforms, or cross-border issues,
• penalties/interest are compounding, or
• director’s liability is on the table.

An RRSP over-contribution is one of those mistakes that feels small but can become expensive fast – because the CRA’s penalty tax runs monthly and can keep running until the excess is eliminated.

This guide walks you through:

• What the CRA considers an “excess contribution”
  
• How the 1% per month tax is calculated and when it stops
  
• The exact forms that usually matter
  
• A practical, step-by-step plan to fix the issue and minimize total cost
  
• The most common pitfalls that cause people to pay more than they should

1. What Counts as an RRSP Over-Contribution (CRA Definition)

You generally have RRSP “excess contributions” when your unused contributions from prior years + current calendar-year contributions exceed your RRSP deduction limit (shown on your latest Notice of Assessment/Reassessment or in CRA My Account) plus the $2,000 buffer.

Importantly: Over-contribution issues usually arise from contributions, not deductions. You can choose to deduct RRSP contributions later, but the CRA’s excess-contribution calculation focuses on whether you contributed beyond your available limit (subject to the buffer).

2. The Real Cost: How the CRA’s 1% Monthly Tax Works

If your unused contributions exceed your RRSP deduction limit by more than $2,000, you generally must pay 1% per month on the portion that exceeds the buffer.

3. RRSP Over-Contribution Triage: What To Do Immediately

When you discover (or suspect) an RRSP over-contribution, speed matters – but so does not making a second mistake while “fixing” the first.

Step 1: Stop new contributions

Pause automatic deposits, contributions you can control until you’ve confirmed your numbers.

Step 2: Confirm your RRSP deduction limit (don’t guess)

Use your latest Notice of Assessment/Reassessment or CRA My Account to find your RRSP deduction limit and your unused RRSP contributions figure.

Step 3: Calculate the excess month-by-month

The CRA’s Part X.1 tax is monthly, so the best outcome often depends on:

• Which month the excess first existed, and
  
• Which month you eliminated it.

Step 4: Decide how you’ll eliminate the excess

Most cases come down to one of these paths:

1. Withdraw the excess (fastest way to stop the monthly tax), or
   
2. Absorb it with new RRSP room (only makes sense in narrow situations – and only after doing the math).

4. How To Remove the Excess: The Withdrawal Options (and Their Tax Traps)

Withdrawing the excess stops the 1% monthly tax once the excess is gone – but withdrawals can create withholding tax and income inclusion issues. There are several options for withdrawing excess contributions, including the following:

Option A — Withdraw the excess now (with withholding tax)

If you withdraw from an RRSP, the financial institution generally withholds tax at source. CRA’s published rates for Canadian residents are:

• 10% (5% in Quebec) up to $5,000
  
• 20% (10% in Quebec) over $5,000 up to $15,000
  
• 30% (15% in Quebec) over $15,000.
  

Key point: Withholding tax is not necessarily the final tax you’ll owe – it’s a prepayment. You may end up owing more tax than the amount that was withheld.

Option B — Withdraw the unused contributions without withholding (T3012A route)

If you meet CRA’s conditions, you can apply to withdraw unused contributions without withholding tax by using Form T3012A (CRA’s approval required).

5. The “You Must File This” Piece: T1-OVP / T1-OVP-S

If your excess contributions are subject to the 1% tax, there is a special return that must be filed – Form T1-OVP. Generally, the return needs to be filed and tax paid no later than 90 days after the end of the year in which you had the excess contributions. Filing Form T1-OVP return late could result in late filing penalties and repeat late filing penalties.

6. Can CRA Waive or Cancel the RRSP Excess Contribution Tax Itself?

Generally, you can ask in writing for the CRA to waive or cancel the RRSP excess contribution tax if both of the following are true:

1. The excess arose due to a reasonable error, and
   
2. You have taken reasonable steps to eliminate the excess

The form CRA wants for this: RC2503

To make the request, you may wish to use Form RC2503 to request a waiver/cancellation request, along with supporting documents showing the exact months of contributions/withdrawals and documents supporting your “reasonable error” narrative.

Practical takeaway: “Reasonable error” is not just saying “I didn’t know.” A strong RC2503 package usually explains:

• What specifically caused the error (timeline + trigger)
  
• Why that mistake was reasonable in the circumstances
  
• What you did immediately once you discovered it
  
• How you eliminated (or are eliminating) the excess
  
• Clear month-by-month supporting documents

7. When RC4288 Matters: Relief From Penalties and Interest (Not the Part X.1 Tax)

RRSP over-contribution files usually have two problems:

1. The Part X.1 tax (the 1% per month), and
   
2. Penalties/interest caused by late filing or delayed payment.

CRA’s taxpayer relief process (often via Form RC4288) is aimed at penalties and interest relief. RC4288 is not the main tool to cancel the over-contribution tax itself – that’s where RC2503 typically comes in.

8. If CRA Assessed You Incorrectly: Don’t Use “Relief” To Fix a Math Problem

If the CRA’s assessment is wrong because of:

• Incorrect months assigned,
  
• Misapplied deduction limit data, or
  
• Other factual/technical errors,

you may need a formal Notice of Objection, and not request discretionary relief. You generally have 90 days from the date of a Notice of Assessment or Reassessment to file a Notice of Objection. This matters because “relief” requests are discretionary and often assume the assessment is correct; Notices of Objection are generally for when the assessment is incorrect.

9. Common Reasons RRSP Over-Contribution Fixes Fail

Based on CRA’s published requirements and common patterns, these are the pitfalls that cause unnecessary cost:

• Waiting too long to act to withdraw the overcontribution
  
• Submitting a waiver/cancellation request that is vague and that does not clearly outline how the requirements are met
  
• Using taxpayer relief (RC4288) to try to cancel the underlying tax

10. Prevention: How To Avoid RRSP Over-Contributions Going Forward

A few habits prevent most RRSP over-contribution problems:

• Check your RRSP deduction limit on your Notice of Assessment (or CRA My Account) before making large contributions.
  
• Track all RRSP-type contributions you’re responsible for (including spousal contributions and any “automatic” deposits).

11. When Professional Help Becomes High-Value

You may wish to consider getting assistance from a tax lawyer if any of the following apply:

• The amount of over-contribution tax, interest, and penalties is significant
• CRA’s record of months during which the penalty tax applies differs from yours
• You have already requested a waiver/cancellation of overcontribution tax or interest/penalty relief, but were not successful

Have you ever “borrowed” money from your own company or paid a personal expense out of the corporate account? It might seem harmless, but the Canada Revenue Agency (CRA) has a special rule to catch this activity: subsection 15(2) of the Income Tax Act (Canada). This rule can turn those shareholder loans or benefits into taxable income. In this article, we’ll break down what subsection 15(2) is, why the CRA uses it so often, examples of how it can be triggered, how serious the consequences can be, and practical ways to avoid or defend against these tax assessments.

What is Subsection 15(2) of the Income Tax Act (Canada)?

Subsection 15(2) is often called the “shareholder loan rule.” In general terms, if you (or someone connected to you) get a loan or owe a debt to your own corporation because you’re a shareholder, that amount can be treated as income on your personal tax return. In other words, the CRA may insist you pay tax on money your company lent you, just as if it were a salary or dividend payment. This prevents owners from pulling money out of a company tax-free by calling it a loan instead of income. Essentially, subsection 15(2) stops “hidden” benefits or dividends from flowing to shareholders without tax consequences.

There are exceptions in the law for genuine loans. For example, if the loan is repaid quickly or made for specific purposes, it might not be taxed. The default assumption is that a loan to a shareholder is a taxable benefit unless there is an exception.

Why Does the CRA Use Subsection 15(2) So Often?

The CRA commonly relies on this rule because without it, everyone could try to avoid taxes by taking money out of their company as “loans” instead of taxable income. The rule is an anti-avoidance measure: it’s there to catch situations where a shareholder is really enjoying corporate funds (for personal use) without paying the proper taxes.

In practice, CRA auditors pay close attention to shareholder transactions. It’s very common for small business owners to withdraw cash or pay personal bills from the company and park it in an accounting entry called “shareholder loan” or “due from shareholder.” The CRA knows this trick and frequently audits these accounts.

Recent CRA focus: As of 2025, the CRA is more vigilant than ever. It even launched a Shareholder Loan Audit initiative targeting small businesses, using automated systems to sniff out unreported shareholder benefits. They compare things like retained earnings, dividends, and shareholder withdrawals to flag any “loans” that look suspicious.

Examples: When Can a Shareholder Loan Become a Taxable Benefit?

It might not always be obvious which actions could trigger a 15(2) assessment. Here are some realistic scenarios that commonly lead to trouble:

• Personal Expenses Paid by the Company: If your corporation pays for a personal expense of yours, that’s a shareholder benefit. For instance, if the company pays your credit card bill or utility bill, or covers your personal vacation, the CRA sees that as a benefit to you as a shareholder. Often, accountants will record such payments as a loan to shareholder. But if you don’t reimburse the company quickly, the CRA can include those payments in your income under subsection 15(2).
• Direct Cash Withdrawals: The most basic example is taking cash out of the company for yourself without declaring it as salary or dividend. For example, if you write yourself a cheque or e-transfer from the business account and just book it as a “shareholder withdrawal,” it creates a loan from the corporation to you. If that withdrawal isn’t repaid or otherwise accounted for, it’s essentially income in the CRA’s eyes. Many owners do this unknowingly – they treat the company bank account like their own. But those informal withdrawals are exactly what subsection 15(2) targets.
• Personal Use of Corporate Assets: This is slightly different but related to shareholder benefits. If you use a company asset personally (for example, you live in a company-owned house or drive a company car for personal use), the value of that usage can be a taxable shareholder benefit. While this might be taxed under a different provision (15(1) for benefits), it often goes hand-in-hand with shareholder loan issues. For instance, costs paid by the company for that asset (maintenance, etc.) might get dumped into your shareholder loan account.

Key point: Many of these situations start innocently or even by mistake. It’s common for bookkeepers to record things to a shareholder loan account without the owner realizing it. But if those transactions aren’t corrected, they can snowball into a tax problem.

Why a Subsection 15(2) Tax Assessment is Serious

Getting hit with a 15(2) assessment is no small matter – it can be quite harsh. Here’s what it means and why you want to avoid it:

• Income Inclusion: The full amount of the loan or debt gets added to your personal taxable income.
• Tax and Interest: The inclusion is retroactive to the year the loan was taken. In practice, if the CRA finds in 2025 that you had that shareholder loan in 2024, they’ll reassess your 2024 tax return to include it. That means you’ll owe the back-taxes as if it should have been reported in 2024, plus interest charged from the date the 2024 taxes were due.
• Possible Penalties: If the CRA believes you knowingly tried to evade tax by using shareholder loans, they can also apply penalties. A common one is the gross negligence penalty under subsection 163(2) of the Income Tax Act (Canada), which is 50% of the tax avoided.
• No Deduction for the Company: Lastly, remember that if a benefit is assessed to you, it’s not deductible to the corporation. So the company can’t write it off as an expense (unlike a salary which is deductible)

How to Avoid or Defend Against Shareholder Loan Assessments

The good news is that with a bit of planning and discipline, you can avoid the 15(2) trap. And even if you’re already in the trap, there are ways to mitigate the damage. Here are some practical strategies for business owners:

• Repay Shareholder Loans Within the Allowed Timeframe: The simplest way to avoid a loan being taxed under subsection 15(2) is to pay it back fast. This rule generally gives you until one year after the end of the corporation’s tax year in which the loan was made to repay the loan. Don’t try to game the system by repaying the loan and taking a new loan. The law has an anti-avoidance rule about a “series of loans and repayments.” If you repay just before the deadline and then the company loans you a similar amount shortly after, the CRA can deem that you never really repaid it at all. In short, make sure the repayment is genuine and lasting.
• Consider Declaring Income to Clear the Loan: Many owners find it hard to actually pay back a large loan in cash. One common strategy (and one that CRA finds acceptable) is to clear the shareholder loan by converting it into a dividend or bonus. In other words, your company can declare a dividend or pay you a salary/bonus that you use to offset the loan balance. The amount of the loan then effectively becomes taxable income (as a dividend or salary) on your return, which is what would have happened anyway, but you’ve formalized it. Yes, you’ll pay tax on that dividend or bonus, but that’s much better than leaving the loan hanging and then facing a retroactive 15(2) inclusion with the possibility of penalties. In practice, many accountants will do this at year-end: if they see a shareholder loan outstanding, they’ll advise the company to declare a dividend to wipe it out.
• Separate Personal and Business Expenses: Try not to mix personal expenditures with your company’s finances. It’s easy to slip up (using the wrong credit card, etc.), but maintaining a clear separation will save you headaches. When you blur the lines, those amounts often end up in the shareholder loan account. Keep diligent records and have your bookkeeper categorize transactions correctly.
• Meet the Exceptions (If They Apply): Subsection 15(2) has several built-in exceptions for certain loans. If you qualify for one, the loan won’t be taxed as a benefit. The most common exception is for loans to employees (who happen to be shareholders) for specific purposes.

How a Tax Lawyer Can Help if the CRA Comes Knocking

Despite best efforts, mistakes happen and CRA audits do occur. If you’re facing a potential subsection 15(2) issue – maybe you’ve received a CRA audit notice or a reassessment for a shareholder loan – getting professional help is wise. Here’s how a tax lawyer can assist:

• Assessing Your Exposure: A tax lawyer can review your company’s books, especially the shareholder loan account, to determine how much of it might be at risk of being treated as income. They know the 15(2) rules inside-out and can identify what transactions the CRA is likely to challenge. Often, they’ll catch things you might not, like a pattern that CRA could view as a series of loans, or documentation gaps. This initial review helps you understand the scope of the problem and plan a response.
• Dealing with the CRA on your behalf: Facing CRA auditors or appeals officers can be stressful. Tax lawyers are experienced in communicating with the CRA. They can prepare a formal response to an audit proposal or file a Notice of Objection to fight a reassessment. In doing so, they’ll present legal arguments as to why a particular amount shouldn’t be taxed (maybe arguing it falls under an exception, or it was actually repaid, or even that it was an accounting error). They know what arguments have worked in past court decisions and can cite those precedents (for instance, cases where courts sided with taxpayers because the loans were for business purposes or because the taxpayer acted in good faith). By objecting and negotiating, they can often reduce or cancel the proposed taxes. Importantly, when a Notice of Objection is filed, it generally halts collection action on the disputed amount, giving you breathing room while it’s resolved.
• Penalty Negotiation: If penalties have been applied (such as the gross negligence 50% penalty), a tax lawyer will aggressively challenge them if there’s any justification to do so. The CRA must prove “gross negligence,” and if you have some evidence that you acted reasonably or relied on professional advice, lawyers can argue to have those penalties removed.
• Protecting Your Rights and Strategy: Perhaps most importantly, a tax lawyer brings solicitor-client privilege and strategy to the table. Your discussions with them are confidential (unlike with an accountant), so you can candidly explore all options. They’ll devise a plan – whether it’s to negotiate a settlement with CRA or to take the matter to Tax Court if needed. In complex cases, they might work alongside forensic accountants to reconstruct loan accounts and prove repayments were made.

In summary, don’t go it alone if you’re facing a hefty shareholder loan assessment. The stakes – taxes, interest, penalties – can be high, and the rules are complex. A tax lawyer will help ensure the CRA doesn’t overreach, and that you pay no more than you truly owe.

Subsection 15(2) of the Income Tax Act (Canada) is an important rule for any Canadian business owner with a corporation. It’s all about the CRA making sure you don’t enjoy corporate profits personally without paying the proper tax. By understanding this rule, keeping good records, and planning withdrawals carefully, you can avoid the common pitfalls. If the CRA does come auditing, remember that you have options and rights – including the right to get professional help from tax lawyer who deal with these issues regularly.

This article was originally published by Law360 Canada (www.law360.ca), part of LexisNexis Canada Inc.

A Notice of Reassessment means the CRA has reviewed a return that was already assessed and changed it – often affecting your tax owing, refund, penalties, and interest. What matters now is doing the right things in the right order – especially before the clock runs out.

Step 1: Do this today (the “don’t-miss-a-deadline” checklist)

1. Find the notice date (the date on the notice).
    This date generally drives your objection deadline. Determine your objection deadline.
2. Identify exactly what changed.
    Compare the reassessed amounts to your original filing (income, deductions, credits, penalties, interest).
3. Pull every CRA letter that led up to this.
    Reassessments often follow a review/audit where the CRA requested documents.
4. Collect your proof.
    Receipts, invoices, contracts, bank records, bookkeeping reports, slips, correspondence—anything that supports your original position.
5. Calendar the objection deadline immediately.
    Make sure that you document your objection deadline and do not miss it.

Step 2: Choose the right path (not every reassessment needs a fight)

A reassessment usually falls into one of these situations:

A) You agree with the change

Pay what’s owed (or set up a payment arrangement). Interest can keep accumulating on balances owing.

B) You disagree (facts misread or law misapplied)

That’s when a Notice of Objection is usually the next step. Objections are for situations where you believe they misinterpreted your facts or applied the law incorrectly.

Step 3: Know the deadline that matters most

Individuals (and graduated rate estates)

Your objection deadline is generally whichever is later:

• 1 year after the tax filing deadline for the return, or
• 90 days from the date of your notice of reassessment.

Corporations

Your objection deadline is generally:

• 90 days from the date of your notice of reassessment.

Missed the deadline?

You may apply for an extension, and the CRA states you can apply up to one year after the objection deadline (and you can apply at the same time as you file your objection).

Step 4: File a Notice of Objection

The CRA’s guidance is straightforward: when you object, you must clearly explain what you’re objecting to and why, and include relevant facts and supporting documentation.

What to include in a strong objection

• The tax year and the Notice of Reassessment you’re objecting to
• The specific items you disagree with (line items/issues)
• A clear explanation of why (facts + law, where relevant)
• The documents that prove your position
• A summary your reviewer can follow quickly

How to file

You can file:

• Online in CRA portals (My Account / My Business Account) using “Register my formal dispute”, and then upload documents through “Submit documents online.”
• Through your authorized representative via Represent a Client
• By mail/fax using Form T400A (Objection – Income Tax Act) or a signed letter with the facts, reasons and the same information that would go into a T400A form.

Step 5: Does interest continue to accrue while you object?

Interest charges continue to accrue while the amount is in dispute. You can pay the amount in dispute to avoid additional interest.

Step 6: What happens after you object?

Once you file, the CRA reviews what you submitted and will either:

• agree (in whole or part) and issue an adjustment/reassessment, or
• disagree and send a notice saying the reassessment/determination was correct

Step 7: If the CRA says “no,” the next step is Tax Court

If you disagree with the CRA’s decision on your objection, you can appeal to the Tax Court of Canada. Generally, you have 90 days from the CRA’s reassessment /determination following your objection to file your appeal.

How far back can the CRA go?

Under the Income Tax Act, the “normal reassessment period” is generally:

• 4 years for a mutual fund trust or a corporation that is not a CCPC, and
• 3 years in most other cases, counted from the day the CRA sent the original assessment (or the original “no tax payable” notification).

The CRA can reassess after that normal period in specific situations – such as where there was a misrepresentation attributable to neglect, carelessness, wilful default, or fraud, or where a waiver was filed.

One more option people miss: relief from penalties and interest

If your main issue is penalties and/or interest (not the underlying tax), you may be able to request taxpayer relief (discretionary, fact-driven). There’s also a 10‑year limitation period for interest relief requests (and related limits for penalties/interest outside the eligible window).

Bottom line

A CRA Notice of Reassessment isn’t the end of the road – but it is a deadline-driven process. If you believe the reassessment is incorrect, the goal is to:

• lock in your deadlines,
• build an evidence-based position, and
• file a clean, timely objection that’s easy for CRA to understand.

If you want help assessing the notice, preparing your objection, or planning next steps (including Tax Court strategy), contact Taxpayer Law today.