The Toronto Transitional Housing Allowance Program (TTHAP) is generally reported on your tax return as a social assistance payment or provincial supplement, as it often comes with a T5007 slip.  

CRA Link: Line 14500—Social assistance payments

If you received the housing allowance but did not receive a tax slip, it should still be reported as "Other income" or "Social Assistance" in the income section.

After you have filled out the My Info/Profile section, from the left-hand menu bar, you should be able to navigate to Income -> T-slips and scroll down to T5007. Enter the amount from Box 11 of your T5007 slip.

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