XML 35 R24.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes (Tables)
3 Months Ended
Mar. 31, 2012
Income Taxes [Abstract]  
Earliest Open Tax Years Subject to Examination by State Taxing Authorities in the Major Operating Jurisdictions
State Audits- Xcel Energy files consolidated state tax returns based on income in its major operating jurisdictions of Colorado, Minnesota, Texas, and Wisconsin, and various other state income-based tax returns.  As of March 31, 2012, Xcel Energy's earliest open tax years that are subject to examination by state taxing authorities in its major operating jurisdictions were as follows:

State
 
Year
Colorado
 
2006
Minnesota
 
2007
Texas
 
2007
Wisconsin
 
2007
Summary of Income Tax Contingencies
A reconciliation of the amount of unrecognized tax benefits is as follows:

(Millions of Dollars)
 
March 31, 2012
 
 
Dec 31, 2011
 
Unrecognized tax benefit - Permanent tax positions
 
$
4.4
 
 
$
4.3
 
Unrecognized tax benefit - Temporary tax positions
 
 
29.5
 
 
 
30.4
 
Unrecognized tax benefit balance
 
$
33.9
 
 
$
34.7
 

The unrecognized tax benefit amounts were reduced by the tax benefits associated with net operating loss (NOL) and tax credit carryforwards.  The amounts of tax benefits associated with NOL and tax credit carryfowards are as follows:

(Millions of Dollars)
 
March 31, 2012
 
 
Dec 31, 2011
 
NOL and tax credit carryforwards
 
$
(32.8
)
 
$
(33.6
)