Yes , you can claim your all your foreign tax credit this year. The $300 (single) and $600 (married filing jointly) limits are only to let taxpayers know that they can skip filing a Form 1116 Foreign Tax Credit if their only foreign tax under this amount and is for interest and dividends reported on a Form 1099-INT or 1099-DIV or a Schedule K.
You can choose to take the deduction for the foreign taxes on Schedule A as an itemized deduction on line 6 , other taxes.
