Net income is used to calculate certain federal and provincial or territorial non-refundable tax credits. We also use your net income, and if you are married or living common-law, your spouse or common-law partner's net income, to calculate amounts such as your Canada Child Tax Benefit, goods and services tax/harmonized sales tax credit, the social benefits repayment and certain non-refundable tax credits.
Make sure you enter your spouse or common-law partner's net income in the "Information about your spouse or common-law partner" area on page 1 of your tax return, even if it is zero.
If the amount on line 236 is negative, complete Form T1A, Request for Loss Carryback, to determine if you have a non-capital loss. If you have a loss for 2006, and you want to carry it back to your 2003, 2004, or 2005 tax return, attach a completed Form T1A to your paper tax return (or send one to us separately). Do not file an amended tax return for the year or years to which you want to apply the loss.
On line 236, enter the result of the amount on line 150 minus the total of the allowable deductions claimed on lines 207 through 235.