On the consumer side, the QMID requirement changes how you shop. It is no longer enough to ask whether a window is efficient; you now need to confirm that the manufacturer has assigned a qualified product identification number and that this number will appear on your documentation - Invoice or other documentation received from the contractor. Guidance aimed at homeowners notes that starting in 2025, the Internal Revenue Service is implementing new identification rules for the Energy Efficient Home Improvement Tax Credit, and that you will need the manufacturer’s code in order to claim the credit. That means you should ask your contractor or supplier to provide the exact model numbers and the associated identifier in writing before installation.
The QMID may not be on the windows. So call the contractor if you cannot locate it.
