Treadstone Associates
Definition

Interest deductibility on acquisition debt

Under the Income Tax Act, interest paid or payable pursuant to a legal obligation on “borrowed money used for the purpose of earning income from a business or property” is deductible — the statutory test in section 20(1)(c) that determines whether interest on acquisition debt can be written off.

Treadstone Associates · Updated 2026

How it’s used in Canada

Section 20(1)(c)(i) permits the deduction for borrowed money used for the purpose of earning income from a business or property. Section 20(1)(c)(ii) does the same for an amount payable for property acquired for the purpose of gaining or producing income from the property or from a business. Both are capped at “a reasonable amount in respect thereof” — the Act does not allow deducting more than the interest is actually worth.

The provision carries its own carve-outs, and they matter to how an acquisition is structured: both paragraphs explicitly exclude “borrowed money used to acquire property the income from which would be exempt or to acquire a life insurance policy”. A holding company that borrows to acquire the shares (or assets) of an operating business is squarely within the general test where that business is expected to earn income — business income directly, or dividend income on the shares — but the same borrowing used instead to fund a life-insurance-funded arrangement would not qualify, because the Act says so in the same sentence that creates the deduction.

Section 20(3) matters just as much in a financing structure that starts with a bridge facility: money borrowed to repay an earlier borrowing keeps the original borrowing’s purpose for deductibility purposes. A holdco that draws a short-term bridge to close, then repays it with a BDC facility, does not have to re-establish the purpose test from scratch on the replacement loan — the character of the original borrowing carries over.

Worked example

Newco borrows $2,000,000 to acquire 100 percent of the shares of an operating target expected to pay dividends and continue generating business income. Say the loan carries interest at 8 percent a year, an illustrative rate for this example — that is $160,000 of interest annually. Because the borrowed money was used for the purpose of earning income from a business (through the acquired shares), the interest qualifies for deduction under s.20(1)(c)(i), subject to the amount being reasonable. Had Newco instead borrowed the same $2,000,000 to fund a life-insurance-backed buy-sell arrangement, the explicit s.20(1)(c)(i) carve-out would deny the deduction outright, regardless of the rate.

Related terms

See also: bridge financing, Business Development Bank of Canada and leverage multiple.

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