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Find a Lawyer » Canada Legal Guides » Money, Taxes & IP Canada » Deducting Interest on Money Borrowed to Buy Private Shares in Canada

Deducting Interest on Money Borrowed to Buy Private Shares in Canada

27 Jul 2026 5 min read No comments Money, Taxes & IP Canada
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Under Section 20(1)(c) of the Canadian Income Tax Act, you can generally deduct interest paid on a personal loan used to purchase private corporate shares, provided the shares have a “reasonable expectation of earning income” (specifically dividends). The Canada Revenue Agency (CRA) requires you to prove a direct, unbroken paper trail tracing the borrowed funds directly to the share purchase.

Investing in private Canadian corporations is a common wealth-building strategy, but securing the capital often requires taking out personal loans or leveraging a line of credit. Many investors in Toronto, Calgary, and Vancouver are eager to deduct the interest payments on these loans to reduce their personal tax burden. 💰 The Canada Revenue Agency (CRA) does allow taxpayers to deduct carrying charges, but the legal requirements under the Income Tax Act are extremely rigid. You cannot simply borrow money, throw it into a general bank account, buy some shares later, and expect to claim the tax deduction automatically.

The fundamental rule for interest deductibility in Canada is the “purpose test” combined with strict tracing requirements. The borrowed money must be used for the explicit purpose of earning income from a business or property. In the context of private shares, this means the corporation must have a history of paying dividends, or a documented intention to pay dividends in the future. 📝 If a private company has a strict policy to reinvest all profits and never pay dividends (meaning your only hope for profit is a future capital gain), the CRA will firmly deny your interest deduction. Engaging a tax lawyer or a CPA is highly recommended before structuring these loans.

Step-by-Step Process for Tracing and Deducting Interest in Canada

To survive a CRA audit, your paperwork must be flawless. Commingling borrowed funds with your personal grocery money will destroy the direct link required for the deduction. Here is how you should structure the investment.

Step 1: Setting Up a Dedicated Loan Account

The most critical step in money tracing is isolating the borrowed capital. When you take out a loan or draw on a Home Equity Line of Credit (HELOC), you should have the bank transfer those specific funds into a brand-new, empty checking account that is used for absolutely nothing else. 💳 Never deposit the loan into your daily personal account, as the CRA considers the funds mixed, making it impossible to prove which specific dollars bought the shares.

Step 2: Documenting the Dividend Expectation

Before completing the purchase, you must gather evidence that the private corporation intends to pay dividends. You should request a copy of the company’s Shareholder Agreement or historical financial statements. 📋 If the company is a startup that currently operates at a loss, you need documented business plans showing a clear path to profitability and a policy supporting future dividend distributions to satisfy the CRA’s income test.

Step 3: Executing the Direct Share Purchase

Transfer the funds directly from the dedicated loan account to the private corporation (or the selling shareholder) to finalize the share purchase. You must retain the bank statements showing the exact withdrawal, matching the exact amount on the share purchase agreement. 🤝 Your name must be officially added to the corporate minute book and the central securities register as the legal owner of those shares.

Step 4: Claiming the Deduction on Your T1 Return

At tax time, you will tally all the interest paid to your bank during the calendar year on that specific loan. You will enter this amount on your personal T1 General Income Tax Return under Line 22100 (Carrying charges and interest expenses). 📄 You do not need to attach the bank statements to your tax return when filing, but you must keep them safely stored in case the CRA requests a post-assessment review.

Step 5: Monitoring Corporate Reorganizations

If the private company later undergoes a corporate restructuring (such as a Section 85 rollover) or is sold, the status of your loan changes. If you sell the shares, the income-earning source disappears. Unless you immediately trace the proceeds of that sale into another eligible income-earning investment, the interest on the remaining loan balance is generally no longer tax-deductible under Canadian law.

How Much Does Professional Tax Structuring Cost?

Properly setting up a leveraged investment strategy often requires specialized financial and legal advice to avoid costly CRA reassessments. Below are the estimated fees in CAD for retaining professionals in Canada.

Professional ServiceEstimated Cost (CAD)Description
Tax Lawyer Consultation$500 – $900 per hourReviewing the Shareholder Agreement to confirm dividend expectations and tracing plans.
CPA Tax Preparation$400 – $1,200 annuallyFiling your complex T1 return, ensuring Line 22100 deductions are calculated perfectly.
CRA Audit Defence$3,000 – $10,000+Retaining a law firm if the CRA denies your deduction and you must file a Notice of Objection.

How Long Should You Keep Tracing Records?

In Canada, the CRA generally has three years from the date of your Notice of Assessment to audit your tax return. However, because interest deductions depend on the initial loan setup, you must retain all original loan agreements, bank transfer receipts, and the share purchase contract for at least six years after the final year in which you claim the interest deduction. ⏳ If you hold the shares and the loan for 15 years, you must keep the day-one paperwork for the entire duration.

Frequently Asked Questions (FAQ)

Can I deduct interest if I only expect capital gains?

No. The Supreme Court of Canada has firmly established that borrowing money purely to achieve a capital gain does not satisfy the “earning income” test under Section 20(1)(c) of the Income Tax Act. There must be a reasonable expectation of dividends or interest income.

What if the company cancels its dividend policy?

If the private corporation formally amends its articles to prohibit the payment of dividends, your shares will no longer qualify as an income-earning asset. The interest on your loan will immediately cease to be tax-deductible from that day forward.

Can I use a HELOC to buy shares and deduct the interest?

Yes, Home Equity Lines of Credit are commonly used. However, if you use the same HELOC to buy the shares AND pay for personal home renovations, you must mathematically separate the interest, as only the portion directly traced to the shares is deductible.

Can I deduct the principal payments on the loan?

No. You can only deduct the interest portion of your loan payments and any reasonable mandatory fees associated with securing the loan. Paying down the actual principal balance is not a tax-deductible expense in Canada.

What if the private company goes bankrupt?

If the company goes bankrupt and your shares become worthless, the income source is gone. Historically, you would lose the interest deduction. However, specific provisions in the Income Tax Act (Section 20.1) may allow you to continue deducting interest if the funds were genuinely lost, but a tax lawyer should review your specific case.

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