How do I enter a foreign tax credit?

@geneo1133 ,  need a lot more info to be able to help you.

Form 1116 ( Foreign Tax credit ) is needed to  reduce the impact of double taxation i.e.  when the same foreign source income is taxed by both the USA ( taxes  your world income ) and  the foreign country ( generally  taxes  in-country sourced income ).   This is available  ONLY when there is a  Tax treaty between the US and that foreign country in effect and has a " Mitigation of double taxation" clause.

In cases where the  foreign taxes paid is reported on 1099-IONT or 1099-DIV, one often can take advantage of  safe harbor  rules and not have to file a form 1116 to get foreign tax credit.

With that out of the way , please tell more about your situation , so one of use can help you .