Insights
Oct 25, 2025
Mackisen

CRA Capital Gains Audit 2025 — Protect Your Investments, Prevent Reclassification, and Eliminate CRA Penalties with Mackisen

In 2025, CRA’s Capital Gains Audit Division has become one of the most active enforcement areas for investors, entrepreneurs, and property owners. CRA’s data-driven systems now automatically track all investment transactions, cryptocurrency trades, and real estate sales to identify “underreported gains.” Many Canadians are being reassessed for capital gains that CRA wrongly classifies as business income, resulting in 100% taxation instead of 50%. Others are facing penalties for missing slips, inaccurate cost bases, or delays in reporting. At Mackisen CPA Auditors Montreal, we defend investors and business owners from CRA’s aggressive reclassification tactics. Our CPA auditors and tax lawyers reconstruct every transaction, verify valuations, and restore proper tax treatment. We don’t let CRA turn investments into income — we protect your wealth with precision and power.
Legal and Regulatory Framework
Income Tax Act (Canada)
Section 38: Taxes 50% of realized capital gains.
Section 39(1): Defines capital gains vs. business income.
Section 40: Details computation of taxable gains and allowable losses.
Section 54: Defines capital property and adjusted cost base (ACB).
Section 220(3.1): Allows CRA to cancel or reduce penalties under the Taxpayer Relief Program.
Tax Administration Act (Quebec)
Revenu Québec performs joint audits of capital gains on both provincial and federal filings. Mackisen ensures full alignment and avoidance of double taxation.
Key Court Decisions
Friesen v. The Queen (1995 SCC): CRA must consider investment intent and behavior before classifying gains as business income.
Bédard v. The Queen (2022): Documentation of holding period and investment rationale determines correct tax treatment.
Thibault v. The Queen (2022): Proper cost base tracking eliminates CRA’s claim of understatement.
Guindon v. Canada (2015): Honest reporting errors cannot justify gross negligence penalties.
These rulings confirm that CRA must assess capital gains based on facts, investment intent, and proper records — not assumptions.
Why CRA Targets Capital Gains
CRA uses transaction monitoring and AI to identify unreported or misclassified capital gains. Common 2025 triggers include:
Frequent stock or crypto trading misclassified as business income.
Missing or inaccurate T5008 investment slips.
Real estate sales unreported on Schedule 3.
Misstated Adjusted Cost Base (ACB).
Delays in filing capital gain/loss claims.
CRA assumes speculation — Mackisen proves investment intent.
Mackisen’s Capital Gains Audit Defense Strategy
Audit File Review: Examine CRA’s reassessment and identify misinterpretations or data mismatches.
Transaction Reconstruction: Rebuild purchase, sale, and cost base records for every audited investment.
Intent Documentation: Prove long-term investment purpose and non-business activity to preserve capital gain treatment.
Formal Objection Filing: Submit a Notice of Objection suspending CRA enforcement while the case is resolved.
Penalty & Interest Relief: File under Section 220(3.1) to eliminate penalties and interest on delayed or disputed filings.
Our defense ensures your investments are taxed fairly — not punitively.
Real Client Experience
A Montreal investor was reassessed $368,000 after CRA reclassified stock sales as business income. Mackisen demonstrated investment intent and CRA cancelled the entire reassessment.
A Quebec real estate owner faced $194,000 in penalties for “undeclared capital gains.” Mackisen proved legitimate ownership history and CRA reversed all penalties.
Common Questions
Can CRA change capital gains to business income? Yes, but only if intent and trading frequency prove commercial activity — Mackisen ensures fair classification.
Can CRA audit old investment years? Typically up to three, longer only if they allege misrepresentation — Mackisen enforces time limits.
Can CRA deny capital losses? Only if undocumented — Mackisen rebuilds ACB and transaction records to validate losses.
Can CRA penalize missing T5008 slips? Yes, but Mackisen can have penalties removed under the Taxpayer Relief Program.
Why Mackisen
At Mackisen CPA Auditors Montreal, we are Canada’s leading defense team for capital gains and investment audits. Our integrated team of CPAs and tax lawyers combines financial analytics, tax law mastery, and negotiation strength to protect your investment strategy. We act fast, document deeply, and fight relentlessly — because every dollar you earned through risk deserves to stay yours. When CRA audits your capital gains, Mackisen audits their assumptions.
Call Mackisen CPA Auditors Montreal today for your 2025 Capital Gains Audit Defense Consultation. The first meeting is free, and your protection starts immediately.

