TP-726.6-V: Cumulative Net Investment Loss

If you're a resident of Québec who had investment income or deducted investment expenses after 1987, and you want to figure out your cumulative net investment loss (CNIL), you’ll need to use form TP-726.6-V.

Your CNIL consists of the investment expenses you’ve deducted minus the investment income you’ve earned after 1987.

Keep in mind, your CNIL reduces your cumulative gains limit, which in turn reduces the amount you can claim for capital gains deduction for qualified farm or fishing property, or qualified small business corporation shares. Even if you’re not claiming a capital gains deduction this year, we recommend completing this form so that you can calculate your CNIL and use this amount in the future.

Note: If you have already calculated your CNIL in 2023, you’ll need to only provide information for 2024. Otherwise, you’ll need to provide information for all applicable years.