Income tax expense (Tables)

12 Months Ended

Dec. 31, 2017

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Summary of Income Tax Expense

	2017			2016			2015
Current income tax expense		(437,967	)		(200,663	)		(591,297	)
Deferred income tax expense		(133,791	)		(222,497	)		(75,815	)
Total income tax expense		(571,758	)		(423,160	)		(667,112	)

Summary of Income Tax Recognized Directly in Equity

Income tax relating to each component of other comprehensive income
2017	Before tax			Tax (expense)/ credit			Net of tax
Foreign currency translation differences		100,149			(107,299	)		(7,150	)
Remeasurements of employee termination benefits		(3,738	)		748			(2,990	)
		96,411			(106,551	)		(10,140	)
2016
Foreign currency translation differences		218,472			(87,381	)		131,091
Remeasurements of employee termination benefits		(34,532	)		7,066			(27,466	)
		183,940			(80,315	)		103,625
2015
Foreign currency translation differences		(384,466	)		(5,749	)		(390,215	)
Changes in cash flow hedge reserve		719			—			719
Remeasurements of employee termination benefits		(13,466	)		2,563			(10,903	)
		(397,213	)		(3,186	)		(400,399	)

Summary of Reconciliation of Effective Income Tax Expense

Reconciliation of income tax expense

	2017			2016			2015
Profit from continuing operations before income tax expense		2,609,517			2,009,127			2,203,327
Profit from discontinued operations before income tax expense		—			(42,164	)		367,336
Profit before income tax expense		2,609,517			1,966,963			2,570,663
Tax at the Turkey’s tax rate		(521,903	)		(393,393	)		(514,133	)
Difference in overseas tax rates		4,133			(15,935	)		(52,688	)
Effect of exemptions (*)		73,916			104,244			62,163
Effect of amounts which are not deductible		(102,102	)		(78,571	)		(16,104	)
Utilization of previously unrecognized tax losses		—			1,253			22,863
Change in unrecognized deferred tax assets (**)		(41,340	)		(30,616	)		(198,364	)
Adjustments for current tax of prior years		11,280			(8,176	)		—
Tax effect of investment in associate		—			—			32,926
Other		4,258			(1,966	)		(3,775	)
Total income tax expense		(571,758	)		(423,160	)		(667,112	)

(*) Mainly comprises of research and development tax credit.

(**) Mainly comprises of tax losses for which no deferred tax asset has been recognized.