Federal Tax Credits Expires: December 31, 2025 - Act now! (Energy Efficient Home Improvement Credit - 25C) Get up to 30% back (max $3,200/year) on qualifying energy-efficient upgrades through 2032. Heat Pump / Heat Pump Water Heater: Up to $2,000 Insulation: Up to $1,200 High-Efficiency Gas Furnace: Up to $600 Variable Speed AC: Up to $600  Must meet ENERGY STAR® standards Claim with IRS Form 5695 More details at irs.gov.