Retirement tax questions

Choose the Foreign Taxes option under Estimates and Other Taxes Paid, in the Deductions and Credits section of TurboTax.

Work through that section and indicate that you want the foreign tax credit as opposed to the foreign tax deduction. Eventually you will come to a page where you will be asked to enter your Foreign Tax Credit Carryovers:

Be mindful that you can only receive a foreign tax credit to the extent you have US income tax on foreign income, so you would need foreign income in the current year to receive a foreign tax credit.