Federal status
The IRS states that the Energy Efficient Home Improvement Credit under section 25C is not allowed for property placed in service after December 31, 2025.
What to collect
Before asking for an incentive estimate, collect the project ZIP, electric and gas utilities, building type, existing fuel, proposed AHRI match, installer information, and expected installation date.
Primary sources
Use these agencies as the source of truth. Summit summarizes them for equipment planning and does not provide legal, tax, engineering, or permit advice.