For investment contracts (other than Canada Savings Bonds and debt obligations in bearer form) acquired after November 12, 1981, and before 1990, you have to prepare a T5 slip to report the interest that accrues to every "third anniversary" of the investment contract. Do not include interest you previously reported.

The "third anniversary" is the third December 31 after the end of the year in which the contract was originally issued, and each third December 31 after that.

If a contract is disposed of before its "third anniversary" date, or between "third anniversary" dates, you have to prepare a T5 slip to report the interest earned from the date it was acquired, or its previous "third anniversary", to the date of disposal.

The first three-year anniversary for investment contracts acquired before 1982 began on December 31, 1988.