No, it has to do with joint occupancy, sharing your home with others who may qualify for the credit. If you occupied your home jointly with someone, each occupant must complete their own Form 5695. If the aggregate credit that would be allowed to all occupants for any item of property exceeds the credit limit here, then you must figure your allocable share of the credit from each property.
The credit allocable to you is the credit limit for that property multiplied by a fraction. The numerator is the amount you paid and the denominator is the total amount paid by you and all other occupants.
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