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Income Taxes
12 Months Ended
Dec. 31, 2019
Income tax expense (benefit) [Abstract]  
Income Taxes
41.

Income Taxes

 

(1)

Income tax expense (benefit) for the years ended December 31, 2017, 2018 and 2019 are as follows:

 

           2017      2018      2019  
           In millions of won  

Current income tax expense

          

Payment of income tax

         881,583        378,715        538,223  

Adjustment in respect of prior years due to change in estimate

       4,484        (195,648      (176,441

Current income tax directly recognized in equity

       (56,098      101,528        (53,302

Effect of change in accounting policy

       —          1,780        —    
    

 

 

    

 

 

    

 

 

 
       829,969        286,375        308,480  
    

 

 

    

 

 

    

 

 

 

Deferred tax expense

          

Generation and realization of temporary differences

       1,283,012        (495,658      (636,984

Changes of unrecognized tax losses, tax credit and temporary differences for prior periods

       44,573        (28,509      (22,469

Changes in deferred tax on tax losses carryforwards

       —          (572,305      (582,011

Tax credit carryforwards

       15,270        (16,224      (71,306

Amount due to change in tax rate or regulations

       —          —          1,987  
    

 

 

    

 

 

    

 

 

 
       1,342,855        (1,112,696      (1,310,783
    

 

 

    

 

 

    

 

 

 

Income tax expense (benefit)

         2,172,824        (826,321      (1,002,303
    

 

 

    

 

 

    

 

 

 

 

(2)

Reconciliation between actual income tax expense and amount computed by applying the statutory tax rate to income before income taxes for the years ended December 31, 2017, 2018 and 2019 are as follows:

 

            2017     2018      2019  
            In millions of won  

Profit (loss) before income tax

          3,614,218       (2,000,819      (3,265,838
     

 

 

   

 

 

    

 

 

 

Income tax expense (benefit) computed at applicable tax rate(*1)

        874,641       (550,225      (898,105

Adjustments

          

Effect of applying gradual tax rate

        (5,082     (1,408      10,362  

Effect of non-taxable income

        (32,032     (1,705      (9,990

Effect of non-deductible expenses

        15,032       40,151        12,197  

Effect of tax losses that are not recognized as deferred tax asset

        —         2,086        57,490  

Effects of tax credits and deduction

        (161,069     (39,471      (76,983

Recognition (reversal) of unrecognized deferred tax asset, net

        44,573       (28,509      (22,469

Effect of change in deferred tax due to change in tax rate

        1,055,154       261        16,848  

Deferred tax related to investments in subsidiaries and associates

        394,145       (52,618      147,598  

Others, net

        (17,022     765        (62,810
     

 

 

   

 

 

    

 

 

 
        1,293,699       (80,448      72,243  

Adjustment in respect of prior years due to change in estimate

        4,484       (195,648      (176,440
     

 

 

   

 

 

    

 

 

 

Income tax expense (benefit)

          2,172,824       (826,321      (1,002,302
     

 

 

   

 

 

    

 

 

 

Effective tax rate

        60     (*2      (*2

 

  (*1)

Applicable tax rate is 24.2% as of December 31, 2017, and 27.5% as of December 31, 2018 and 2019.

 

  (*2)

The effective tax rate for the year ended December 31, 2018 and 2019 is not calculated for income tax benefit.

 

(3)

Income tax directly adjusted to shareholders’ equity (except for accumulated other comprehensive income (loss)) for the years ended December 31, 2017, 2018 and 2019 are as follows:

 

            2017      2018      2019  
            In millions of won  

Dividends of hybrid bond

          5,248        4,273        3,432  

Effect of change in effective tax rate

        (25      —          —    
     

 

 

    

 

 

    

 

 

 
          5,223        4,273        3,432  
     

 

 

    

 

 

    

 

 

 

 

(4)

Income tax recognized as other comprehensive income (loss) for the years ended December 31, 2017, 2018 and 2019 are as follows:

 

            2017      2018      2019  
            In millions of won  

Income tax recognized as other comprehensive income (loss)

           

Gain (loss) on valuation of financial assets at fair value through other comprehensive income

          —          35,798        (4,217

Loss on valuation of available-for-sale financial assets

        (2,551      —          —    

Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax

        (11,016      6,639        (15,642

Remeasurement of defined benefit obligations

        (80,645      53,703        (40,235

Investments in associates

        8,649        6,592        4,275  

Others

        24,242        (5,477      (914
     

 

 

    

 

 

    

 

 

 
          (61,321      97,255        (56,733
     

 

 

    

 

 

    

 

 

 

 

(5)

Changes in deferred tax assets (liabilities) recognized in the statements of financial position for the years ended December 31, 2018 and 2019 are as follows:

 

          2018  
          Beginning
balance
    Amounts
recognized
in profit
or loss
    Amount
recognized in
other
comprehensive
income (loss)
    Amounts
recognized
directly
in equity
    Ending
balance
 
          In millions of won  

Deferred tax on temporary differences

           

Employee benefits

        498,694       42,144       53,703       —         594,541  

Cash flow hedge

      65,445       (32,623     6,639       —         39,461  

Investments in associates or subsidiaries

      (8,668,016     (5,447     6,592       —         (8,666,871

Property, plant and equipment

      (6,860,440     337,662       —         —         (6,522,778

Finance lease

      (426,949     (26,125     —         —         (453,074

Intangible assets

      7,648       (1,593     —         —         6,055  

Financial assets at fair value through profit or loss

      890       (871     —         —         19  

Financial assets at fair value through other comprehensive income

      (8,843     (1,379     35,798       —         25,576  

Deferred revenue

      230,711       (10,969     —         —         219,742  

Provisions

      4,822,833       (21,887     —         —         4,800,946  

Doubtful receivables

      59       —         —         —         59  

Other finance liabilities

      32,755       2,465       —         4,273       39,493  

Gains or losses on foreign exchange translation

      (1,354     28,434       —         —         27,080  

Allowance for doubtful accounts

      42,931       15,825       —         —         58,756  

Accrued income

      (1,825     (1,089     —         —         (2,914

Special deduction for property, plant and equipment

      (200,927     (10,819     —         —         (211,746

Reserve for research and human development

      (3,041     3,041       —         —         —    

Others

      952,754       105,869       (5,477     —         1,053,146  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
      (9,516,675     422,638       97,255       4,273       (8,992,509
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Deferred tax on unused tax losses and tax credit

           

Unused tax losses

      —         554,457       —         —         554,457  

Excess of donation limit

      —         17,848       —         —         17,848  

Tax credit

      20,431       16,225       —         —         36,656  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
      20,431       588,530       —         —         608,961  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
        (9,496,244     1,011,168       97,255       4,273       (8,383,548
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

 

          2019  
          Beginning
balance
    Amounts
recognized
in profit or
loss
    Amount
recognized in
other
comprehensive
income (loss)
    Amounts
recognized
directly
in equity
    Others(*)     Ending
balance
 
          In millions of won  

Deferred tax on temporary differences

             

Employee benefits

        594,541       94,541       (40,235     —         —         648,847  

Cash flow hedge

      39,461       (23,977     (15,642     (841     —         (999

Investments in associates or subsidiaries

      (8,666,871     (3,131     4,275       —         —         (8,665,727

Property, plant and equipment

      (6,522,778     (592,440     —         —         —         (7,115,218

Finance lease

      (453,074     292,631       —         —         —         (160,443

Intangible assets

      6,055       (20,232     —         —         (41,729     (55,906

Financial assets at fair value through profit or loss

      19       322       —         —         —         341  

Financial assets at fair value through other comprehensive income

      25,576       (3,114     (4,217     —         —         18,245  

Deferred revenue

      219,742       (6,739     —         —         —         213,003  

Provisions

      4,800,946       655,973       —         —         —         5,456,919  

Doubtful receivables

      59       —         —         —         —         59  

Other finance liabilities

      39,493       (4,402     —         4,273       —         39,364  

Gains or losses on foreign exchange translation

      27,080       30,881       —         —         —         57,961  

Allowance for doubtful accounts

      58,756       (1,149     —         —         —         57,607  

Accrued income

      (2,914     (1,462     —         —         —         (4,376

Special deduction for property, plant and equipment

      (211,746     (3,627     —         —         —         (215,373

Others

      1,053,146       290,484       (914     —         —         1,342,716  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
      (8,992,509     704,559       (56,733     3,432       (41,729     (8,382,980
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Deferred tax on unused tax losses and tax credit

             

Unused tax losses

      554,457       557,356       —         —         —         1,111,813  

Excess of donation limit

      17,848       18,847       —         —         —         36,695  

Tax credit

      36,656       70,870       —         —         —         107,526  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
      608,961       647,073       —         —         —         1,256,034  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
        (8,383,548     1,351,632       (56,733     3,432       (41,729     (7,126,946
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

 

  (*)

‘Others’ include amount changed due to business combination. (see Note 51)

 

(6)

Deferred tax assets (liabilities) recognized in the statements of financial position as of December 31, 2018 and 2019 are as follows:

 

            2018      2019  
            In millions of won  

Deferred tax assets

          1,233,761        1,437,829  

Deferred tax liabilities

        (9,617,309      (8,564,775
     

 

 

    

 

 

 
          (8,383,548      (7,126,946
     

 

 

    

 

 

 

 

(7)

Details of deductible temporary differences, tax losses and unused tax credits for which no deferred tax assets were recognized as of December 31, 2018 and 2019 are as follows:

 

            2018      2019  
            In millions of won  

Deductible temporary differences

          442,391        541,449