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14 INCOME TAX AND SOCIAL CONTRIBUTION (Tables) | 12 Months Ended
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Dec. 31, 2019
Income Tax And Social Contribution [Abstract] |
Schedule of income tax and social contribution income (expense) | The income tax and social contribution recognized in profit or loss for the year are as follows:
| Consolidated
| 12/31/2019 |  | 12/31/2018 | 12/31/2017
Income tax and social contribution income (expense) |  |  |  |
Current | (1,564,622) |  | (827,229) | (358,981)
Deferred | 2,398,400 |  | 576,895 | (50,128)
| 833,778 |  | (250,334) | (409,109)
Schedule of reconciliation of income tax and social contribution income (expense) | The reconciliation of consolidated income tax and social contribution expenses and income and the result from applying the effective rate to profit before income tax and social contribution are as follows:
|  |  | Consolidated
| 12/31/2019 |  | 12/31/2018 |  | 12/31/2017
Profit/(Loss) before income tax and social contribution | 1,410,733 |  | 5,450,917 |  | 520,338
Tax rate | 34% |  | 34% |  | 34%
Income tax and social contribution at combined statutory rate | (479,649) |  | (1,853,312) |  | (176,915)
Adjustment to reflect the effective rate: |  |  |  |  |
Equity in results of affiliated companies | 46,737 |  | 50,134 |  | 42,431
Profit with differentiated rates or untaxed | (236,404) |  | (46,006) |  | 37,605
Transfer pricing adjustment | (18,494) |  | (74,836) |  | (34,746)
Tax loss carryforwards without recognizing deferred taxes | (21,095) |  | (27,683) |  | (368,612)
Indebtdness limit | (20,393) |  | (38,486) |  | (39,378)
Unrecorded deferred taxes on temporary differences | (2,835) |  | (11,964) |  | 541,655
(Losses)/Reversal for deferred income and social contribution tax credits | 1,530,185 |  | 1,807,909 |  | (403,080)
Income taxes and social contribution on foreign profit | (14,424) |  | (30,219) |  | (29,964)
Tax incentives | 39,042 |  | 36,710 |  | 14,358
Deferred taxes on exchange variation in equity |  |  | (43,667) |  |
Interest on equity | 22,107 |  |  |  |
Other permanent deductions (additions) | (10,999) |  | (18,914) |  | 7,537
Income tax and social contribution in profit for the period | 833,778 |  | (250,334) |  | (409,109)
Effective tax rate | -59% |  | 5% |  | 79%
Schedule of deferred income tax and social contribution | Deferred income tax and social contribution are calculated on income tax and social contribution losses and the corresponding temporary differences between the tax bases of assets and liabilities and their carrying amounts in the financial statements:
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Consolidated
| 12/31/2017 |  | Movement | 12/31/2018 |  | Movement |  | 12/31/2019
|  | Shareholders' Equity |  | P&L |  | Others |  | Shareholders' Equity |  | P&L |  | Others |  |
Deferred |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax losses | 1,137,234 |  |  |  | (177,378) |  | (616) | 959,240 |  |  |  | 651,561 |  |  |  |  | 1,610,801
Social contribution tax losses | 406,884 |  |  |  | (39,303) |  | (223) | 367,358 |  |  |  | 242,688 |  |  |  |  | 610,046
Temporary differences | (2,654,558) |  | 21,208 |  | 793,576 |  | 839 | (1,838,935) |  | (2,357) |  | 1,504,151 |  | 59 |  |  | (337,082)
- Provision for tax. social security, labor, civil and environmental risks | 356,750 |  |  |  | (25,554) |  | 3,184 | 334,380 |  |  |  | (70,367) |  |  |  |  | 264,013
- Asset impairment losses | 181,463 |  |  |  | 53 |  |  | 181,516 |  |  |  | 915 |  |  |  |  | 182,431
- (Gains)/losses on financial instruments | 416,747 |  | 530,292 |  | (587,263) |  |  | 359,776 |  |  |  | 54,719 |  |  |  |  | 414,495
- Actuarial liability (pension and healthcare plan) | 273,058 |  | (48) |  | 3,022 |  |  | 276,032 |  | 38,569 |  |  |  |  |  |  | 314,601
- Accrued supplies and services | 67,716 |  |  |  | 27,928 |  |  | 95,644 |  |  |  | 36,767 |  |  |  |  | 132,411
- Goodwill on merger | 608 |  |  |  | (608) |  |  |  |  |  |  |  |  |  |  |  |
- Unrealized ex change differences (1) | 1,511,152 |  |  |  | (500,620) |  |  | 1,010,532 |  |  |  | 170,969 |  |  |  |  | 1,181,501
- (Gain) on loss of control over Transnordestina | (92,180) |  |  |  |  |  |  | (92,180) |  |  |  |  |  |  |  |  | (92,180)
- Cash flow hedge accounting | 134,479 |  | 355,563 |  |  |  |  | 490,042 |  | (63,080) |  |  |  |  |  |  | 426,961
- Aquisition Fair Value SWT/CBL | (193,311) |  | (16,683) |  | 37,880 |  |  | (172,114) |  | (52,071) |  | 39,672 |  |  |  |  | (184,513)
- Deferred taxes non computed | (212,236) |  |  |  | (38,359) |  | (2,345) | (252,940) |  |  |  | (39,021) |  |  |  |  | (291,961)
- (Losses) estimated/ reversals to deferred taxes credits | (4,130,928) |  | (885,069) |  | 1,929,424 |  |  | (3,086,573) |  | 25,159 |  | 1,435,415 |  |  |  |  | (1,625,998)
- Business Combination | (1,040,536) |  |  |  | 9,724 |  |  | (1,030,812) |  |  |  | 7,471 |  |  |  |  | (1,023,341)
- Consolidation CBSI |  |  |  |  |  |  |  |  |  |  |  | (12) |  | 62 |  |  | 50
- Other | 72,660 |  | 37,153 |  | (62,051) |  |  | 47,762 |  | 49,066 |  | (132,377) |  | (3) |  |  | (35,552)
Total | (1,110,440) |  | 21,208 |  | 576,895 |  | - | (512,337) |  | (2,357) |  | 2,398,400 |  | 59 |  |  | 1,883,765
Total Deferred Assets | 63,119 |  |  |  |  |  |  | 89,394 |  |  |  |  |  |  |  |  | 2,473,304
Total Deferred Liabilities | (1,173,559) |  |  |  |  |  |  | (601,731) |  |  |  |  |  |  |  |  | (589,539)
Total Deferred | (1,110,440) |  |  |  |  |  |  | (512,337) |  |  |  |  |  |  |  |  | 1,883,765
(1) The Company taxes exchange differences on a cash basis to calculate income tax and social contribution on net income.
Schedule of estimated recovery of deferred tax assets | The estimated recovery of deferred tax assets of IRPJ and CSLL are presented by net when referring to a single jurisdiction as shown in the table below:
In millions of reais |  | Consolidated
2020 |  | 230
2021 |  | 713
2022 |  | 938
2023 |  | 985
2024 |  | 431
Deferred Asset |  | 3,297
Deferred liabilities - Parent Company |  | (823)
Net Deferred Asset |  | 2,474
Deferred liabilities - Subsidiaries |  | (590)
Net Deferred Asset |  | 1,884
Schedule of income tax and social contribution recognized in shareholders' equity | The income statement and social contribution recognized directly in the shareholder’s equity are demonstrated below:
| Consolidated
| 12/31/2019 |  | 12/31/2018
Income tax and social contribution |  |  |
Actuarial gains on defined benefit pension plan | 215,306 |  | 176,700
Estimated losses for deferred income and social contribution tax credits - actuarial gains | (217,969) |  | (180,048)
Exchange differences on translating foreign operations | (325,350) |  | (325,350)
Cash flow hedge accounting | 426,961 |  | 490,041
Estimated losses for deferred income and social contribution tax credits - cash flow hedge | (426,961) |  | (490,041)
| (328,013) |  | (328,698)
Schedule of deferred tax assets on tax losses and temporary differences | The deferred tax assets on tax losses and temporary differences refers mainly to the following:
| Nature | Description
| Tax losses | The Company incur tax losses at the parent company level, because of financial expenses over its leverage, since it holds substantially all loans and financings of CSN group. In 2018 the parent company presented taxable income.
Temporary differences | Foreign exchange differences | The Company usually opts for the taxation of exchange differences on a cash basis. As a result, taxes are due and expenses are deductible when the underlying asset or liabilities is settled.
Losses on Usiminas shares | Changes in investments in Usiminas’ shares are recognized on an accrual basis, but the event that generates taxation or deductibility will only occur at the time of divestment.
Other provisions | Other provisions are recognized on an accrual basis, but their taxation occurs only at the time of their realization. This includes provisions for contingencies, impairment losses, environmental liabilities, etc.

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