Usually it is almost always more advantageous to claim a credit for your foreign taxes paid, as opposed to a deduction, because a tax credit results in a dollar-for-dollar reduction against your tax liability, as opposed to a tax deduction, which only reduces your taxable income.\
To see where to enter in TurboTax Online your foreign taxes paid, for
purposes of claiming the Foreign Tax Credit on Form 1116, please see the
following TurboTax FAQ, "Where do I enter the foreign tax credit (Form
1116) or deduction?":
https://ttlc.intuit.com/replies/3302405
