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Line 21700 - Allowable business investment loss

Federal Line 21700 - Allowable business investment loss

If you had a business investment loss in 2024, you may be able to deduct a portion of this loss from income. The amount that you can deduct is equal to your business investment loss for the year multiplied by 50%. This amount is called your allowable business investment loss (ABIL).

Complete Schedule 3 while referring to Chart 6 of Guide T4037, Capital Gains, to determine your ABIL and business investment loss reduction, if applicable.

Claim the deduction for the ABIL on line 21700 of your return. Enter your gross business investment loss for Period 1 on line 21698 of your return and that for Period 2 on line 21699 of your return.

For more information, go to canada.ca/line-21700.

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