17. INCOME TAXES  

Income Tax Rate Reconciliation    
(millions of dollars)
Year ended December 31,

2006

2005
Earnings before income taxes
15.5
15.8
Combined statutory income tax rate 32.5% 33.6%
Income taxes at statutory rate 5.0 5.3
Increase/(decrease) resulting from:    
    Interest deductions of subsidiaries arising from intercorporate debt (20.1) (24.4)
    Tax rate reductions on future income tax balances (16.3)
    Distributions on ECT preferred units 11.4 11.6
    Deductions allocated to unitholders 4.9 4.8
    Large corporations tax 2.7
    Future income taxes related to regulated operations (3.8) 2.1
    Other (0.9) (1.5)
Income taxes/(recovery) (19.8) 0.6
     
Effective income tax rate (127.7%) 3.8%

Components of Future Income Taxes    
(millions of dollars)
December 31,

2006

2005
Future income tax liabilities/(assets)    
Differences in accounting and tax bases of:    
    Property, plant and equipment and intangibles 91.2 112.8
    Fair value increment on long-term debt acquired (14.2) (18.9)
    Other (4.2) (4.7)
  72.8 89.2

At December 31, 2006, the Fund has recognized the benefit of unused loss carryforwards of $6.3 million (2005 – $3.8 million). Unused tax loss carryforwards expire as follows: 2010 – $2.1 million, 2014 – $0.9 million, 2015 – $0.9 million and
2026 – $2.4 million.