What is the adjusted cost basis of a corporate contract, and why does it matter?
It is the tax cost the legislation assigns to the contract, and it is the figure subtracted from a corporate claim before the notional ledger is credited. The higher it stands on the day of the claim, the smaller the credit. It rises with premiums paid and falls each year as the cost of the pure insurance is charged against it.
What kind of answer this is
- Claim type: Tax or regulatory position
- Claim type: Requires another professional
- Jurisdiction: Canada wide
The mechanism is federal and applies as at the date on this page. The figure itself belongs to the insurer, and its consequences to the company belong to a CPA.
How it works
The definition sits at ITA s.148(9). Premiums push the figure up. The annual charge for the pure insurance element pushes it down, and that charge grows with the age of the life insured, so the figure typically peaks and then declines toward nothing.
The cost or the catch
Nobody notices the figure until the year it decides something, and by then it cannot be changed. Two companies with identical coverage can produce credits far apart because one funded quickly and the other slowly, which is a design decision taken long before anyone asked.
Where this answer may not apply
- The figure moves every year, so a number quoted at issue tells you nothing about the number that will apply decades later.
- Designs differ, and a contract carrying large optional deposits behaves differently from one carrying none.
- Where the contract has been transferred between owners, the figure carried forward may not be the one either party assumed.
- A contract issued under earlier tax rules is measured against the rules in force when it was issued.
What to verify in your own contract
- The current figure, in writing from the insurer rather than from an illustration.
- The projection of that figure over the next twenty years, in the same letter.
- Whether any optional deposit has been made, and in which years.
- Whether any amount has been advanced against the contract, since that changes the arithmetic.
- What the company's accountant expects the credit to be, stated as a range rather than a point.
Continue to the full explanation
Prepare the questions for a CPA, a lawyer and an insurance professional.
Sources
- Income Tax Act s.148(9), Justice Laws Canada, verified 2026-08-30
- Canada Revenue Agency, published guidance on the capital dividend account, verified 2026-08-30
Accountability and disclosure
- Written by
- José Salloum
- Professional capacity
- Financial security advisor, Canadian Wealth Creation Centre Inc., operating as IBC Financial
- Reviewed by
- Tax and corporate tier, reviewed by a qualified Canadian tax professional before publication
- Jurisdiction
- Canada wide
- Last reviewed
- 2026-08-30
- Version
- 1.0
- Compensation disclosure
- Canadian Wealth Creation Centre Inc., operating as IBC Financial, may receive insurer paid compensation if a policy is purchased. It takes the form of first year compensation followed by renewal compensation, and the amount varies by insurer, product, age, premium, contract design, riders and the arrangement with the managing general agency. No single figure would describe every contract honestly, and none is published here.
- Report a correction
- Info@ibcfinancial.com. Write without a policy number, medical information or account details.
Last reviewed 2026-08-30. By Jose Salloum, Financial Security Advisor.