The IRS states that the credit may be claimed for energy-efficient exterior doors. You stated that only two of your doors are energy-efficient, therefore, you should claim the credit for those two doors. Personally, I would not consider a door between the kitchen and garage to be an exterior door because there is an additional door between that one and the outdoors (the garage door).
You may use the contractor's information about the cost of the insulation to claim the credit since it was part of a larger project. Be sure to keep the documentation with your return in case the IRS were to question the amount you claimed.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
