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HVAC Replacement Cost Calculator 2026

Estimate central AC, furnace, heat pump, or complete HVAC replacement. Includes 2026 federal tax credits (up to $2,000 for heat pumps) and state rebates.

🟢 Updated April 2026👤 Reviewed by MoneyMath Editorial⚡ Runs in your browser · inputs never leave your device
Estimated HVAC replacement
$10,100 – $20,500
Federal tax credit: up to $1,200
complete system (medium home, standard)included
2026 federal tax creditup to $1,200
Total range (before credits)$10,100 – $20,500
Show the formula
base = system_type × home_size × efficiency × region
+ductwork, +thermostat, +sealing, +removal
-federal credit (up to $2,000 heat pump)

HVAC cost by system type (2026)

  • Central AC only: $5,500–$10,000 (warm climates)
  • Gas furnace: $3,500–$7,500 (cold climates)
  • Heat pump (air-source): $5,500–$12,000 (most efficient)
  • Dual-fuel: $10,000–$22,000 (heat pump + gas backup)
  • Complete AC + furnace: $7,500–$15,000
  • Ductless mini-split (single zone): $3,000–$5,000
  • Ductless multi-zone: $8,000–$14,000
  • Geothermal heat pump: $15,000–$35,000 (long-term savers)

2026 federal tax credits & rebates

  • Heat pump: Up to $2,000 (30% of cost) for ENERGY STAR heat pumps
  • Central AC: Up to $600 for SEER2 16+ units
  • Gas furnace: Up to $600 for AFUE 97%+ units
  • HEEHRA: Up to $8,000 state-level rebates for income-qualified heat pump installs
  • State rebates: CA, MA, NY, WA offer additional $500–$4,000
  • Utility rebates: $200–$1,000 per system

Combined stack: A family in CA installing a heat pump can get $2,000 federal + $4,000 state + $1,000 utility = $7,000 in credits.

How to save

  • Don't oversize. Get a Manual J load calculation. Oversized AC short-cycles.
  • Shoulder season installs. Spring/fall 10–20% cheaper than emergency summer/winter.
  • Stack credits. Federal + state + utility = 30–50% cost reduction.
  • Brand doesn't matter much. Carrier, Trane, Rheem, Goodman are all reliable. Warranty and installer quality matter more.
  • Ask about 0% financing. Manufacturers offer 12–60 month 0% APR.

Frequently Asked Questions

How much does HVAC replacement cost in 2026?

Complete HVAC replacement costs $7,500-$15,000 in 2026. New central AC: $5,500-$10,000. New furnace: $3,500-$7,500. New heat pump: $5,500-$12,000.

Are heat pumps worth it in 2026?

Yes for most climates. Heat pumps qualify for up to $2,000 federal tax credit plus state rebates up to $8,000. In moderate climates, heat pumps cut heating costs 30-50% vs gas furnaces.

How long should HVAC last?

Central AC: 12-17 years. Furnace: 15-25 years. Heat pump: 10-15 years. Boiler: 15-30 years. Regular maintenance extends lifespan significantly.

What HVAC tax credits are available in 2026?

Federal Energy Efficient Home Improvement Credit: up to $2,000 for heat pumps, $600 for central AC/furnace. HEEHRA adds up to $8,000 for income-qualified heat pump installs.

Should I replace just the AC or the whole system?

If your furnace is over 15 years old, replace both for efficiency matching and bulk discount. Matched systems (same manufacturer) run more efficiently.