Since Box 134 represents a Tax-Free Savings Account (TFSA) taxable amount (or a First Home Savings Account payment to a qualified donee), you need to report it as "Other Information."

Where to find it in the TurboTax DIY version (online):

Go to the Income section in the left-hand menu.

Select T-Slips and then click on T4A—Pension, Retirement, Annuity, and Other Income.

On the T4A entry page, scroll down to box 134 on the right side. Enter the dollar amount there. 

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