The Internal Revenue Service’s Energy Efficient Commercial Building Property Deduction- Section 179D, allows eligible owners and tenants to deduct up to $1.80 per square foot from their taxable income. 

The tax deduction may be claimed by:

  • Owners or Tenants of commercial buildings of any height
  • Owners of multifamily buildings over 4 stories
  • Designer / Engineer may claim tax credit on Government-owned buildings

The deduction is available in the year the building is placed in service. Recent legislation now extends the tax deduction to buildings placed in service through 12-31-2020.

Qualifying Buildings

  • Retail
  • Office
  • Senior Centers
  • Industrial
  • Commercial
  • Warehouses
  • Multifamily (minimum 4 stories)

What Systems Qualify?

  • Building Envelope
  • HVAC & Hot Water Heating 
  • Interior Lighting 

To qualify, the total building energy and power costs must be at least 50% below a comparable building that meets ASHRAE 90.1-2007 standards.

Energy modeling is required to justify the deduction. Improvements must be inspected and tested by a qualified engineer. Partner Energy engineers use IRS-approved software to model the energy consumption of your building to determine whether the completed improvements meet the minimum requirements to qualify. 

How Much is My Tax Deduction?

Maximum | $1.80 per square foot 

The maximum tax deduction may be claimed if the whole building meets the 50% below ASHRAE 90.1-2007 standard.

Partial | $0.30 to $0.60 per square foot 

A partial tax deduction of up to $0.60 per square foot may be claimed when systems meet these target savings compared to the ASHRAE standard:

  • Building envelope at least 10% below
  • HVAC & hot water heating at least 15% below
  • Interior lighting at least 25% below