Start with official sources
Use the IRS credit page for current federal rules and dates, the ENERGY STAR page for linked product criteria, and the DOE portal for official home-upgrade and rebate program paths. Source: IRS Energy Efficient Home Improvement Credit Source: EPA ENERGY STAR air-source heat pump tax-credit page Source: U.S. Department of Energy home upgrades and rebates
Treat incentives as unconfirmed until the controlling agency confirms the product, project date, property, applicant, and required documents. Source: IRS Energy Efficient Home Improvement Credit Source: U.S. Department of Energy home upgrades and rebates
Build a complete project range
Create low, expected, and high columns for equipment, electrical scope, permits, labor, line routing, condensate, finish repair, and maintenance access; enter only written quote amounts. Source: U.S. Department of Energy home upgrades and rebates
Keep the gross project range separate from any unconfirmed incentive amount. Source: IRS Energy Efficient Home Improvement Credit Source: U.S. Department of Energy home upgrades and rebates