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Product Category - Windows & Doors
Product Type - Storm Windows
Federal Tax Credit Specification
Montana Tax Credit Specification
In combination with the exterior window over which it is installed:
1.  has a U-factor and SHGC or 0.30 or below
2.  Meets IECC*
For investments in products installed
prior to July 1, 2010
The addition or replacement of any storm window.
 
For investments in products installed
on or after July 1, 2010
In combination with the exterior window over which it is installed has a U-factor and SHGC of 0.30 or below 
 
Federal Tax Credit
Montana Tax Credit
30% of cost, up to $1,500**
25% of cost, up to $500***
Federal Notes
Montana Notes
Unlike the federal credit, the Montana credit:
  • is allowed for installation in dwellings, not only the taxpayer’s principal residence
  • includes installation costs
*    Either the 2001 Supplement of the 2000 International Energy Conservation Code or the 2004 Supplement of the 2003 International Energy Conservation Code.
**     Subject to a $1,500 maximum per homeowner for all improvements combined.
***    Subject to a $500 annual maximum per  taxpayer per building for all improvements combined.