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CRA Requests More Information: What They’re Actually Asking For (And Why)
You filed your tax return. Weeks or months later, a letter arrives from CRA. They want more information. Documents. Explanations. Proof.
Most Ontario business owners react to CRA information requests with some combination of panic and confusion.
What did I do wrong? Why are they asking for this? Do I need a lawyer? What happens if I don’t respond?
The letter uses formal language, references sections of the Income Tax Act, sets deadlines, and implies consequences without clearly stating what those consequences are.
Some business owners immediately assume they’re being audited. Others think it’s routine. Most have no idea what CRA is actually looking for or why they’re asking.
At KKCPA, we see clients receive CRA information requests regularly. The requests range from simple documentation verification to complex examinations of specific transactions. How you respond—what you send, how you explain it, whether you meet deadlines—shapes whether the matter closes quickly or escalates into something more serious.
Here’s what Ontario business owners need to understand about CRA information requests and why your response matters more than you think.
What CRA Information Requests Actually Are (And Aren’t)
When CRA sends a letter requesting more information, most business owners assume the worst.
What it usually is:
A review of specific items on your return that CRA’s systems flagged or that were selected for verification.
What it’s not necessarily:
A full audit. An accusation of fraud. A sign that you did something wrong.
The distinction:
CRA conducts different levels of review. Some are automated. Some are manual. Some are routine verification. Others are targeted examinations of specific issues.
The letter you receive will indicate what type of review is happening, but the language is often bureaucratic and unclear to anyone who doesn’t deal with CRA regularly.
Common types of requests:
Pre-assessment review: CRA wants information before they process your return.
Post-assessment review: Your return was processed, but CRA wants to verify specific claims.
Desk audit: CRA is examining your return in detail but hasn’t escalated to a field audit.
Specific issue examination: CRA identified something questionable and wants explanation.
Why the type matters:
Different types of reviews have different stakes, different timelines, and different approaches to responding effectively.
A pre-assessment request might just need straightforward documentation. A specific issue examination might require detailed technical explanation of why your position is correct under tax law.
Most business owners don’t know which type they’re dealing with or how to tailor their response accordingly.
What Triggers CRA to Request More Information
CRA doesn’t randomly select returns for information requests. Something on your return triggered their interest.
Common triggers:
Unusually large deductions relative to income
If your deductions are significantly higher than businesses in your industry or revenue range, CRA’s systems flag it.
A medical practice claiming vehicle expenses that seem excessive relative to the nature of the practice. A home-based business claiming large office expenses. Incorporated businesses with business-use-of-home claims that don’t align with the corporate structure.
Year-over-year changes that are dramatic
Your expenses jumped 50% from last year with no corresponding revenue increase. Your revenue dropped significantly but expenses stayed the same. Deductions that were modest in prior years suddenly became substantial.
CRA’s systems compare your current return to previous years. Large unexplained variances trigger review.
Specific deduction categories that CRA scrutinizes heavily
Meal and entertainment expenses. Vehicle expenses. Home office claims. Travel expenses. Professional fees that seem disproportionate.
These categories are commonly abused, so CRA examines them more closely.
Industry-specific patterns
CRA knows what typical expense ratios look like for different industries. If your return shows patterns that deviate significantly from industry norms, they ask why.
Random selection
Sometimes CRA just selects returns randomly for verification. No trigger, no suspicion—just statistical sampling to ensure compliance.
Third-party information mismatches
If information slips (T4s, T5s, etc.) issued by third parties don’t match what you reported, CRA requests explanation.
The problem:
You don’t know which trigger caused your request. The letter doesn’t say “we’re asking because your vehicle expenses are unusually high.” It just says “please provide documentation supporting your vehicle expenses.”
Without knowing what raised the flag, it’s difficult to know how to respond strategically.
What CRA Is Actually Asking For (And What They’re Really Looking For)
The letter lists what CRA wants: receipts, invoices, logs, contracts, bank statements.
But what they’re asking for and what they’re actually trying to determine are often different things.
Example: CRA requests vehicle expense documentation
What they ask for: Mileage log, receipts for gas/maintenance/insurance, vehicle registration.
What they’re actually determining: Did you actually use the vehicle for business in the percentage you claimed? Is your log contemporaneous or reconstructed? Are the expenses reasonable for the business use claimed?
Example: CRA requests home office documentation
What they ask for: Floor plan, measurements, photos, calculation of business-use percentage, utility bills.
What they’re actually determining: Does the space qualify as principal place of business or regular meeting space? Is the business-use percentage reasonable? Are you claiming expenses that don’t qualify?
Example: CRA requests meal and entertainment documentation
What they ask for: Receipts showing date, amount, location, attendees, business purpose.
What they’re actually determining: Were these actually business meals or personal dining? Do the attendees and purposes support business claims? Are you claiming 100% of amounts that should be 50%?
The gap:
Business owners often respond to what was literally requested without understanding what CRA is actually trying to verify. They send receipts without context. Documentation without explanation. Information that technically answers the question but doesn’t address the underlying concern.
This creates back-and-forth. CRA asks follow-up questions. The review drags on. What could have closed quickly becomes prolonged examination.
The Deadlines That Actually Matter
Every CRA information request includes a deadline—usually 30 days from the date of the letter.
What happens if you miss the deadline:
CRA can make a determination based on the information they have (which often means disallowing the deduction or claim they’re questioning).
They can impose penalties for failure to provide information.
They can escalate the review to a more formal audit.
What most business owners don’t realize:
The deadline is from the date of the letter, not the date you received it. If the letter is dated March 15 and you don’t open your mail until March 25, you have 20 days left, not 30.
Can you get an extension?
Sometimes. If you contact CRA before the deadline, explain why you need more time, and demonstrate you’re actively working on gathering the information, they may grant an extension.
If you just ignore the deadline and respond late without explanation, they’re less accommodating.
The calculation business owners make:
“I’m busy. I’ll get to it when I can.”
By the time they “get to it,” the deadline has passed. CRA has made a determination. Now instead of just responding to an information request, you’re dealing with a reassessment and potentially filing an objection.
What could have been handled with a straightforward response becomes a months-long process with formal appeals.
Why Your Response Strategy Matters More Than You Think
Most business owners approach CRA information requests with one of two strategies:
Strategy 1: Send everything
Overwhelm them with documents. Receipts, bank statements, contracts, invoices—everything remotely related. Assume more is better.
Strategy 2: Send the minimum
Answer only what was specifically asked. Don’t volunteer additional information. Assume less is safer.
The problem with both:
Neither is optimal for most situations.
Sending everything:
Creates confusion. CRA has to sort through volumes of irrelevant information to find what they need. You might inadvertently include information that raises new questions or flags other issues.
Sending the minimum:
Might technically answer the question but fail to address CRA’s actual concern. Creates impression of being uncooperative or evasive. Often leads to follow-up requests because CRA still doesn’t have what they’re really looking for.
The better approach:
Provide exactly what was requested, organized clearly, with brief explanations that address the underlying concern CRA has.
But knowing what the underlying concern is, how much explanation is appropriate, and how to organize information so CRA can easily verify what they’re checking—that requires understanding how CRA reviews work and what they’re actually looking for.
Most business owners don’t have this understanding. They guess. Sometimes they guess right. Often they don’t.
The Explanation Problem: When Documentation Isn’t Enough
Some CRA information requests can be satisfied with pure documentation. They ask for receipts, you provide receipts, done.
But many requests require explanation, not just documentation.
When explanation matters:
CRA questions whether an expense is business vs. personal (vehicle use, meals, travel).
CRA questions whether you qualify for a specific deduction or credit (home office, research and development, capital cost allowance decisions).
CRA questions unusual transactions or structures (related-party transactions, shareholder loans, income splitting arrangements).
The challenge:
How much do you explain? Too little and CRA remains unconvinced. Too much and you might create new questions or inadvertently undermine your position.
Do you cite tax law and case precedent? Use plain language? Reference industry norms?
Example: Vehicle expense explanation
CRA questions your 70% business use claim.
Option 1: “I use my vehicle primarily for business.”
Too vague. Doesn’t address the concern.
Option 2: “I maintain a detailed contemporaneous mileage log showing business trips to clients at [specific locations], site visits at [specific addresses], and meetings at [specific venues]. My personal vehicle use is limited to [specific types of trips]. The 70% calculation is based on actual kilometers driven for business (18,000 km) divided by total kilometers (25,700 km) as shown in the attached log.”
Specific. Addresses CRA’s concern about documentation quality and business-use percentage. Provides verifiable details.
The problem:
Most business owners don’t know how to pitch explanations at the right level of detail. They either under-explain (leaving CRA unconvinced) or over-explain (creating new questions).
What “Voluntary Disclosure” Means and When It Matters
Sometimes in responding to a CRA information request, you realize: I can’t provide what they’re asking for because the claim wasn’t legitimate. Or wasn’t properly supported. Or was based on a misunderstanding of the rules.
The question becomes:
Do you admit this in your response?
Voluntary disclosure:
A program where you proactively tell CRA about errors or omissions on your return before they discover them through audit or investigation.
If accepted, CRA waives penalties (though you still owe the tax and interest).
When responding to an information request:
If CRA already asked about the item, it’s no longer “voluntary” disclosure in the formal program sense.
But how you handle the response still matters. Do you continue defending an indefensible position? Provide misleading information? Or acknowledge the issue and propose correction?
The tradeoff:
Being forthright about errors might result in owing more tax but avoids penalties and potential accusations of misrepresentation.
Defending positions you know are wrong might work (CRA might not catch it) but carries risk of penalties if they do.
The decision:
This isn’t something you make while drafting your response letter. It requires understanding the penalties for various types of errors, the likelihood CRA will discover the problem if you don’t disclose it, and the consequences of different approaches.
Most business owners don’t have the framework to make this assessment. They wing it. Sometimes it works out. Sometimes it doesn’t.
When “We’ll Just Explain Later” Becomes a Problem
Some business owners, knowing they don’t have proper documentation for claims, adopt a strategy: claim it now, explain later if CRA asks.
The logic:
Most returns don’t get examined. If CRA never asks, you got the deduction. If they do ask, you’ll deal with it then.
Why this creates problems:
CRA information requests often include questions about contemporaneous documentation. “Please provide your mileage log showing business trips during 2025.”
If you didn’t keep one and try to reconstruct it now, CRA can usually tell. Reconstructed logs are too neat. Too consistent. Lack the natural variations of real-time tracking.
When CRA determines documentation was created after the fact specifically to respond to their request, it raises questions about all your other claims.
The downstream effect:
What started as a simple information request about one category of expenses becomes scrutiny of your entire return. They start asking about other deductions. Other years. Related parties.
A narrow review becomes a broad examination because the initial response created credibility concerns.
The “I’ll Handle This Myself” Decision
Most CRA information requests are straightforward enough that business owners think: I can respond to this myself. Why pay someone?
When self-response works:
The request is purely documentary (provide T4s, provide receipts). You have the requested documents. No explanation or interpretation required.
When self-response creates problems:
The request involves judgment about what to provide or how to explain it. You’re not sure if your position is defensible. The stakes are significant (large deduction, substantial tax impact). You’ve received multiple requests or escalating letters.
The hidden cost:
Inadequate responses lead to follow-up requests. Multiple rounds of back-and-forth. Eventual reassessments. Then objections. Then potentially appeals.
What could have been resolved with one proper response becomes months or years of correspondence.
The professional fees to clean up a mishandled response often exceed what it would have cost to handle it properly initially.
The other risk:
Some responses, while well-intentioned, inadvertently create new problems. You explain one thing but in doing so raise questions about something else. You provide documents that show inconsistencies you didn’t notice.
Once you’ve sent a response, you can’t unsend it. If it created problems, you now have to deal with those problems.
What CRA Can Do If They Don’t Like Your Response
You respond to the information request. You think you’ve provided what they asked for.
CRA disagrees. They determine your documentation is inadequate or your explanation is unconvincing.
What happens next:
For specific claims: They disallow the deduction or credit and issue a Notice of Reassessment. You now owe additional tax plus interest from the original filing date.
For broader concerns: They escalate to a more formal audit. What was a simple information request becomes a comprehensive examination.
For non-response or inadequate response: They can assess penalties under subsection 231.2(2) for failure to comply with information requests.
The reassessment:
You have 90 days to file a formal objection. Miss that deadline and your options become very limited.
The objection process is formal. It requires written arguments explaining why CRA’s reassessment is wrong, supported by law and evidence.
This is not “I disagree with you” correspondence. It’s a legal process with specific requirements.
The cost:
You owe the reassessed amount immediately (though you can request to defer collection during objection). Interest continues accruing. If the objection takes months (they often do), interest adds up.
All because the initial information request wasn’t handled properly.
The Industry-Specific Risk Factors
Certain industries receive more CRA information requests than others.
High-risk industries:
Cash-intensive businesses (restaurants, retail, personal services). Businesses with significant related-party transactions (family businesses, professional corporations). Industries with specific tax incentives or credits (research and development, film production, manufacturing). Contractors and self-employed professionals.
Why these face more scrutiny:
Higher opportunity for unreported income or overstated expenses. Complex structures that might be used for income splitting or tax deferral. Incentives that are commonly misapplied.
If you’re in these industries:
Information requests are more likely. Your response needs to be more thorough because CRA is already looking at your industry with skepticism.
A cash business claiming large expense deductions faces higher scrutiny than a professional service business with clear electronic records.
Understanding industry-specific risk factors helps you anticipate what CRA is concerned about and address it proactively in your response.
The Bottom Line
CRA information requests are common. Most business owners will receive at least one eventually.
How you respond matters. What you send. How you explain it. Whether you meet deadlines. Whether you address CRA’s actual concern or just literally answer the question asked.
Inadequate responses lead to reassessments. Reassessments lead to objections. What could have closed in 30 days becomes months or years of correspondence.
The stakes aren’t trivial. Disallowed deductions mean additional tax owing plus interest from the original filing date. Penalties for inadequate responses. Potential escalation to broader audits.
And once you’ve sent a response, you’ve created a record. If that response was problematic, you now have to deal with the problems it created.
Need Help Responding to a CRA Information Request?
At KKCPA, we help Ontario business owners respond to CRA information requests strategically.
We can help you:
- Understand what type of review CRA is conducting and what it means
- Determine what CRA is actually looking for beyond what they literally requested
- Organize documentation in a way that addresses CRA’s concerns
- Provide explanations at the appropriate level of detail
- Assess whether your position is defensible or whether voluntary correction is better
- Meet deadlines and request extensions when needed
Don’t respond to CRA without understanding what they’re really asking for and how your response shapes what happens next.
📍 Serving Ontario businesses including Hamilton, Ancaster, Burlington, and the Greater Toronto Area
📞 Toll Free: 855-667-1727