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INCOME TAXES (Tables) | 12 Months Ended
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Dec. 31, 2014
INCOME TAXES |
Schedule of components of provision for income taxes |
|  | Years Ended December 31, |
|  | 2012 |  | 2013 |  | 2014 |
|  | $ |  | $ |  | $ |
Income (Loss) before Income Tax |  |  |  |  |  |  |  |  |  |
Canada |  |  | 2,616,980 |  |  | 41,700,153 |  |  | 248,666,430 |
Other |  |  | (203,205,487 | ) |  | 11,503,569 |  |  | 72,650,567 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | (200,588,507 | ) |  | 53,203,722 |  |  | 321,316,997 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current Tax |  |  |  |  |  |  |  |  |  |
Canada |  |  | 2,447,930 |  |  | 1,694,557 |  |  | 17,721,440 |
Other |  |  | 13,249,752 |  |  | 9,989,086 |  |  | 29,017,566 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | 15,697,682 |  |  | 11,683,643 |  |  | 46,739,006 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred Tax |  |  |  |  |  |  |  |  |  |
Canada |  |  | 1,713,862 |  |  | 11,493,561 |  |  | 40,894,769 |
Other |  |  | (22,844,954 | ) |  | (15,538,418 | ) |  | (10,202,862 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | (21,131,092 | ) |  | (4,044,857 | ) |  | 30,691,907 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total Income Tax (Benefit) Expense |  |  |  |  |  |  |  |  |  |
Canada |  |  | 4,161,792 |  |  | 13,188,118 |  |  | 58,616,209 |
Other |  |  | (9,595,202 | ) |  | (5,549,332 | ) |  | 18,814,704 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | (5,433,410 | ) |  | 7,638,786 |  |  | 77,430,913 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of tax rates applicable on the Company's major operating subsidiaries in China |
Company |  | Applicable enterprise income tax rate under the new EIT Law
CSI Solartronics (Changshu) Co., Ltd. |  | 25%
CSI Solar Technologies Inc. |  | 25% for 2013 and onwards; 12.5% for 2012 (half reduction of 25%)
CSI Cells Co., Ltd. |  | 25% for 2013 and onwards; 15% for 2012 resulting from its High and New Technology Enterprise ("HNTE") status
Canadian Solar Manufacturing (Luoyang) Inc. |  | 25% for 2012 and onwards;
Canadian Solar Manufacturing (Changshu) Inc. |  | 25% for 2013 and onwards; 12.5% for 2012 (half reduction of 25%)
CSI Solar Power (China) Inc. |  | 25%
Suzhou Sanysolar Materials Technology Co., Ltd. |  | 15% for 2015, 2014 and 2013 resulting from its HNTE status; 25% for 2012
Schedule of movement and balance of the Company's liability for uncertain tax positions |
|  | Years Ended December 31, |
|  | 2012 |  | 2013 |  | 2014 |
|  | $ |  | $ |  | $ |
Beginning balance |  |  | 9,453,041 |  |  | 11,242,208 |  |  | 13,000,601 |
Addition for tax positions related to the current year |  |  | 1,789,167 |  |  | 1,806,512 |  |  | 402,548 |
Reductions for tax positions from prior years/Statute of limitations expirations |  |  | — |  |  | (48,119 | ) |  | (2,558,867 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ending balance |  |  | 11,242,208 |  |  | 13,000,601 |  |  | 10,844,282 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of components of the deferred tax assets and liabilities |
|  | At December 31, 2013 |  | At December 31, 2014 |
|  | $ |  | $ |
Deferred tax assets: |  |  |  |  |  |  |
Accrued warranty costs |  |  | 9,249,470 |  |  | 10,508,762 |
Bad debt allowance |  |  | 13,418,947 |  |  | 9,318,321 |
Issuance costs |  |  | 491,570 |  |  | 1,596,677 |
Inventory write-down |  |  | 4,451,285 |  |  | 5,308,475 |
Depreciation difference of property, plant and equipment |  |  | 23,431,856 |  |  | 26,148,567 |
Accrued liabilities related to countervailing and anti-dumping duty deposits |  |  | — |  |  | 13,850,162 |
Deferred tax assets relating to sale of solar power plants |  |  | — |  |  | 21,096,549 |
Net operating losses carry-forward |  |  | 93,376,674 |  |  | 65,876,351 |
Others |  |  | 4,858,010 |  |  | 6,947,306 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total deferred tax assets |  |  | 149,277,812 |  |  | 160,651,170 |
Valuation allowance |  |  | (57,189,659 | ) |  | (52,984,988 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total deferred tax assets, net of valuation allowance |  |  | 92,088,153 |  |  | 107,666,182 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Analysis as: |  |  |  |  |  |  |
Current |  |  | 29,137,910 |  |  | 40,810,322 |
Non-current |  |  | 62,950,243 |  |  | 66,855,860 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | 92,088,153 |  |  | 107,666,182 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred tax liabilities: |  |  |  |  |  |  |
Foreign currency derivative assets |  |  | 1,538,914 |  |  | 1,166,646 |
Depreciation difference of property, plant and equipment |  |  | 5,598,193 |  |  | 5,264,152 |
Deferred profit of projects |  |  | 15,236,918 |  |  | 70,359,704 |
Basis difference related to SkyPower acquisition |  |  | 58,664,950 |  |  | 26,459,081 |
Others |  |  | 922,772 |  |  | 1,806,298 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total deferred tax liabilities |  |  | 81,961,747 |  |  | 105,055,881 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Analysis as: |  |  |  |  |  |  |
Current |  |  | 57,918,099 |  |  | 94,710,638 |
Non-current |  |  | 24,043,648 |  |  | 10,345,243 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | 81,961,747 |  |  | 105,055,881 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of movement of the valuation allowance |
|  | Years Ended December 31, |
|  | 2012 |  | 2013 |  | 2014 |
|  | $ |  | $ |  | $ |
Beginning balance |  |  | 39,745,271 |  |  | 54,140,359 |  |  | 57,189,659 |
Additions (Reversals) |  |  | 14,530,536 |  |  | 4,670,785 |  |  | (4,411,223 | )
Foreign exchange effect |  |  | (135,448 | ) |  | (1,621,485 | ) |  | 206,552 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ending balance |  |  | 54,140,359 |  |  | 57,189,659 |  |  | 52,984,988 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of reconciliation between the provision for income tax computed by applying Canadian federal and provincial statutory tax rates to income before income taxes and the actual provision and benefit for income taxes |
|  | Years Ended December 31, |
|  | 2012 |  | 2013 |  | 2014 |
Combined federal and provincial income tax rate |  |  | 27 | % |  | 27 | % |  | 27 | %
Expenses not deductible for tax purpose |  |  | (1 | )% |  | — |  |  | — |
Effect of different tax rate of subsidiary operations in other jurisdiction |  |  | (7 | )% |  | 1 | % |  | (2 | )%
Unrecognized tax benefits |  |  | (1 | )% |  | 5 | % |  | — |
Valuation allowance |  |  | (14 | )% |  | 5 | % |  | (1 | )%
Change of tax rates in subsequent years |  |  | — |  |  | (23 | )% |  | — |
Exchange gain (loss) |  |  | (1 | )% |  | — |  |  | — |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | 3 | % |  | 15 | % |  | 24 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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