Yes, those would be credits from Form 1116 and "Form 1116" would be a sufficient answer. If you know which column (it will be "column a" if you only have credits from one country) you could add that, and you could add the line number if you find it but "Form 1116" will let the IRS know what type of credit you are referencing.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
