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Income tax (Tables) | 12 Months Ended
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Dec. 31, 2017
Income tax |
Schedule of income tax in consolidated statements of operations |
|  | 2017 |  | 2016 |  | 2015 |
Current year income tax expense |  | Ps. | (51,313 | ) | Ps. | (706,244 | ) | Ps. | (337,997 | )
Deferred income tax benefit (expense) |  | 212,488 | * | (750,938 | )** | (700,351 | )
Total income tax benefit (expense) |  | Ps. | 161,175 |  | Ps. | (1,457,182 | ) | Ps. | (1,038,348 | )
*Includes translation effect by Ps.1,008 **Includes translation effect by Ps.1,242
Schedule of income tax in consolidated statements of OCI |
|  | 2017 |  | 2016 |  | 2015 |
Deferred tax related to items recognized in OCI during the year |  |  |  |  |  |  |
Net gain (loss) on cash flow hedges |  | Ps. | 12,017 |  | Ps. | (187,408 | ) | Ps. | 58,161 |
Remeasurement gain of employee benefits |  | 533 |  | 132 |  | 352 |
Deferred tax charged to OCI |  | Ps. | 12,550 |  | Ps. | (187,276 | ) | Ps. | 58,513 |
Schedule of reconciliation of corporate income tax rate to effective tax rate |
|  | 2017 |  | 2016 |  | 2015 |
Statutory income tax rate |  | 30.00 | % | 30.00 | % | 30.00 | %
Non-deductible expenses |  | (3.90 | %) | 0.28 | % | 0.66 | %
Unrecorded deferred taxes on tax losses |  | (14.55 | %) | 0.09 | % | — |
Foreign countries difference with Mexican statutory rate |  | (0.32 | %) | 0.04 | % | — |
Inflation of tax losses |  | 1.50 | % | (0.01 | %) | (0.02 | %)
Amendment tax return effects and other tax adjustments |  | (0.31 | %) | (0.11 | %) | (0.42 | %)
Inflation on furniture, intangible and equipment |  | 4.91 | % | (0.38 | %) | (0.34 | %)
Annual inflation adjustment |  | 4.00 | % | (0.63 | %) | (0.23 | %)
|  | 21.33 | % | 29.28 | % | 29.65 | %
Schedule of consolidated deferred taxes |
|  | Consolidated statement of financial position |  | Consolidated statement of operations |  | Consolidated statement of financial position |  | Consolidated statement of operations |
Deferred income tax assets: |  |  |  |  |  |  |  |  |
Intangible |  | Ps. | 463,211 |  | Ps. | (18,415 | ) | Ps. | 481,626 |  | Ps. | (16,637 | )
Provisions |  | 351,989 |  | 8,695 |  | 343,294 |  | 56,727 |
Tax losses available for offsetting against future taxable income |  | 343,082 |  | 309,758 |  | 33,324 |  | (25,030 | )
Extension lease agreement |  | 143,135 |  | 41,411 |  | 101,724 |  | 25,405 |
Unearned transportation revenue |  | 35,941 |  | (29,814 | ) | 65,755 |  | 7,039 |
Allowance for doubtful accounts |  | 7,324 |  | 433 |  | 6,891 |  | (2,179 | )
Employee benefits |  | 5,786 |  | 1,222 |  | 4,031 |  | 886 |
Employee profit sharing |  | 2,716 |  | (490 | ) | 3,206 |  | 158 |
|  | 1,353,184 |  | 312,800 |  | 1,039,851 |  | 46,369 |
Deferred income tax liabilities: |  |  |  |  |  |  |  |  |
Supplemental rent |  | 1,563,363 |  | 223,753 |  | 1,339,610 |  | 363,783 |
Rotable spare parts, furniture and equipment, net |  | 476,917 |  | 108,890 |  | 368,027 |  | 103,926 |
Prepaid expenses and other assets |  | 196,152 |  | (239,586 | ) | 435,738 |  | 280,660 |
Inventories |  | 88,169 |  | 15,286 |  | 72,883 |  | 23,979 |
Financial instruments |  | 49,151 |  | — |  | 61,168 |  | — |
Other prepayments |  | 33,269 |  | (7,023 | ) | 40,292 |  | 23,717 |
|  | 2,407,021 |  | 101,320 |  | 2,317,718 |  | 796,065 |
|  | Ps. | (1,053,837 | ) | Ps. | 211,480 |  | Ps. | (1,277,867 | ) | Ps. | (749,696 | )
Schedule of components of deferred taxes in the consolidated statement of financial position |
|  | 2017 |  | 2016 |
Reflected in the consolidated statement of financial position as follows: |  |  |  |  |
Deferred tax assets |  | Ps. | 562,445 |  | Ps. | 559,083 |
Deferred tax liabilities |  | (1,616,282 | ) | (1,836,950 | )
Deferred tax liability, net |  | Ps. | (1,053,837 | ) | Ps. | (1,277,867 | )
Schedule of reconciliation of deferred tax liability, net |
|  | 2017 |  | 2016 |
Opening balance as of January 1, |  | Ps. | (1,277,867 | ) | Ps. | (340,895 | )
Deferred income tax benefit (expense) during the current year recorded on profits |  | 211,480 |  | (749,696 | )
Deferred income tax benefit (expense) during the current year recorded in accumulated other comprehensive income (loss) |  | 12,550 |  | (187,276 | )
Closing balance as of December 31, |  | Ps. | (1,053,837 | ) | Ps. | (1,277,867 | )
Schedule of available tax carry-forwards | An analysis of the available tax losses carry-forward of the Company at December 31, 2017 is as follows:
Year of loss |  | Historical Loss |  | Restated tax loss |  | Utilized |  | Total remaining amount |  | Year of expiration |
2016 |  | 57,414 |  | 57,414 |  | — |  | 57,414 |  | 2019 |
2016 |  | 52,221 |  | 56,573 |  | 16,378 |  | 40,195 |  | 2026 |
2017 |  | 300,613 |  | 300,613 |  | — |  | 300,613 |  | 2020 |
2017 |  | 1,068,498 |  | 1,103,408 |  | — |  | 1,103,408 |  | 2027 |
|  | Ps. | 1,478,746 |  | Ps. | 1,518,008 |  | Ps. | 16,378 |  | Ps. | 1,501,630 |  |  |
A breakdown of available tax loss carry-forward of Controladora and its subsidiaries at December 31, 2017 is as follows:
|  | Historical loss |  | Restated tax loss |  |  |  | Total remaining amount |
|  |  |  | Utilized |  |
Comercializadora |  | Ps. | 52,221 |  | Ps. | 56,573 |  | Ps. | 16,378 |  | Ps. | 40,195 |
Concesionaria |  | 1,067,836 |  | 1,102,726 |  | — |  | 1,102,726 |
Operaciones Volaris |  | 662 |  | 682 |  | — |  | 682 |
Vuela Aviación |  | 358,027 |  | 358,027 |  | — |  | 358,027 |
|  | Ps. | 1,478,746 |  | Ps. | 1,518,008 |  | Ps. | 16,378 |  | Ps. | 1,501,630 |
Schedule of tax balances |
|  | 2017 |
Restated contributed capital account (Cuenta de capital de aportación or “CUCA”) |  | Ps. | 3,737,048 |
CUFIN* |  | 2,558,378 |
*The calculation comprises all the subsidiaries of the Company.

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