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Income Tax (Tables)

12 Months Ended

Dec. 31, 2024

Texts Block [Abstract]

Summary of Income Tax Expense

Income tax expense consisted of the following:

		Years Ended December 31
		2022								2023								2024
		NT$ (In Millions)								NT$ (In Millions)								NT$ (In Millions)
Current income tax expense
Current tax expense recognized in the current year				$	190,022.2							$	156,684.0							$	275,726.3
Income tax adjustments for prior years					(19,413.0	)							(32,775.5	)							(29,968.0	)
Other income tax adjustments					206.1								244.3								371.4
					170,815.3								124,152.8								246,129.7
Deferred income tax expense
The origination and reversal of temporary differences					(20,037.8	)							4,136.0								916.0
Income tax adjustments for prior years					-								-								3,925.3
Operating loss carryforward					-								-								(2,654.9	)
					(20,037.8	)							4,136.0								2,186.4
Income tax expense recognized in profit or loss				$	150,777.5							$	128,288.8							$	248,316.1

Reconciliation of Income before Income Tax and Income Tax Expense Recognized in Profit or Loss

A reconciliation of income before income tax and income tax expense recognized in profit or loss was as follows:

		Years Ended December 31
		2022								2023								2024
		NT$ (In Millions)								NT$ (In Millions)								NT$ (In Millions)
Income before tax				$	1,144,072.2							$	979,316.5							$	1,405,840.0
Income tax expense at the statutory rate				$	231,776.1							$	197,935.7							$	280,827.9
Tax effect of adjusting items:
Adjusting items in determining taxable income					12,309.8								(7,642.2	)							(5,647.5	)
Tax-exempt income					(157,955.9	)							-								-

		Years Ended December 31
		2022								2023								2024
		NT$ (In Millions)								NT$ (In Millions)								NT$ (In Millions)
Additional income tax under the Alternative Minimum Tax Act				$	61,578.0							$	-							$	-
Additional income tax on unappropriated earnings					42,336.8								29,221.8								44,131.1
Unrecognized deductible temporary differences					-								-								729.2
Unrecognized operating loss carryforward					-								-								2,263.1
The origination and reversal of temporary differences					(24,714.5	)							3,210.1								916.0
Operating loss carryforward					-								-								(2,654.9	)
Income tax credits					4,654.1								(61,905.4	)							(46,577.5	)
					169,984.4								160,820.0								273,987.4
Income tax adjustments for prior years					(19,413.0	)							(32,775.5	)							(26,042.7	)
Other income tax adjustments					206.1								244.3								371.4
Income tax expense recognized in profit or loss				$	150,777.5							$	128,288.8							$	248,316.1

Analysis of Deferred Income Tax Assets and Liabilities in Consolidated Statements of Financial Position

The analysis of deferred income tax assets and liabilities was as follows:

		December 31, 2023												December 31, 2024
		NT$ (In Millions)												NT$ (In Millions)
Deferred income tax assets
Temporary differences
Depreciation						$	41,094.7											$	33,319.8
Refund liability							9,415.0												13,274.4
Unrealized exchange losses							7,100.0												9,078.2
Unrealized loss on inventories							2,771.2												2,749.3
Net defined benefit liability							1,729.7												1,416.0
Deferred compensation cost							489.6												588.8
Others							1,575.6												2,902.4
Operating loss carryforward							-												2,614.4
						$	64,175.8											$	65,943.3

		December 31, 2023												December 31, 2024
		NT$ (In Millions)												NT$ (In Millions)
Deferred income tax liabilities
Temporary differences
Subsidiary’s projected earnings distribution						$	-											$	(3,925.3	)
Others							(53.8	)											(63.2	)
						$	(53.8	)										$	(3,988.5	)

		Year Ended December 31, 2022
														Recognized in
		Balance, Beginning of Year												Profit or Loss												Other Comprehensive Income												Effect of Exchange Rate Changes												Balance, End of Year
						NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)
Deferred income tax assets
Temporary differences
Depreciation						$	34,720.7											$	10,552.2											$	-											$	26.4											$	45,299.3
Refund liability							5,986.2												6,100.8												-												2.5												12,089.5
Unrealized exchange losses							-												5,782.4												-												-												5,782.4
Unrealized loss on inventories							899.0												1,402.2												-												4.1												2,305.3
Net defined benefit liability							1,237.1												(249.1	)											734.0												-												1,722.0
Deferred compensation cost							374.0												(48.2	)											-												35.4												361.2
Others							5,936.9												(4,341.8	)											-												31.1												1,626.2
						$	49,153.9											$	19,198.5											$	734.0											$	99.5											$	69,185.9
Deferred income tax liabilities
Temporary differences
Unrealized exchange gains						$	(706.3	)										$	706.3											$	-											$	-											$	-
Others							(1,167.6	)											133.0												6.0												(2.8	)											(1,031.4	)
						$	(1,873.9	)										$	839.3											$	6.0											$	(2.8	)										$	(1,031.4	)

		Year Ended December 31, 2023
														Recognized in
		Balance, Beginning of Year												Profit or Loss												Other Comprehensive Income												Effect of Exchange Rate Changes												Balance, End of Year
						NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)
Deferred income tax assets
Temporary differences
Depreciation						$	45,299.3											$	(4,197.2	)										$	-											$	(7.4	)										$	41,094.7
Refund liability							12,089.5												(2,673.5	)											-												(1.0	)											9,415.0
Unrealized exchange losses							5,782.4												1,317.6												-												-												7,100.0
Unrealized loss on inventories							2,305.3												466.2												-												(0.3	)											2,771.2
Net defined benefit liability							1,722.0												(116.9	)											124.6												-												1,729.7
Deferred compensation cost							361.2												129.9												-												(1.5	)											489.6
Others							1,626.2												(38.9	)											-												(11.7	)											1,575.6
						$	69,185.9											$	(5,112.8	)										$	124.6											$	(21.9	)										$	64,175.8
Deferred income tax liabilities
Temporary differences
Others						$	(1,031.4	)										$	976.8											$	-											$	0.8											$	(53.8	)

		Year Ended December 31, 2024
														Recognized in
		Balance, Beginning of Year												Profit or Loss												Other Comprehensive Income												Effect of Exchange Rate Changes												Balance, End of Year
						NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)												NT$ (In Millions)
Deferred income tax assets
Temporary differences
Depreciation						$	41,094.7											$	(7,787.6	)										$	-											$	12.7											$	33,319.8
Refund liability							9,415.0												3,856.8												-												2.6												13,274.4
Unrealized exchange losses							7,100.0												1,978.2												-												-												9,078.2
Unrealized loss on inventories							2,771.2												(25.9	)											-												4.0												2,749.3
Net defined benefit liability							1,729.7												(284.8	)											(28.9	)											-												1,416.0
Deferred compensation cost							489.6												66.0												-												33.2												588.8
Others							1,575.6												1,289.8												(10.0	)											47.0												2,902.4
Operating loss carryforward							-												2,654.9												-												(40.5	)											2,614.4
						$	64,175.8											$	1,747.4											$	(38.9	)										$	59.0											$	65,943.3
Deferred income tax liabilities
Temporary differences
Subsidiary’s projected earnings distribution						$	-											$	(3,925.3	)										$	-											$	-											$	(3,925.3	)
Others							(53.8	)											(8.5	)											-												(0.9	)											(63.2	)
						$	(53.8	)										$	(3,933.8	)										$	-											$	(0.9	)										$	(3,988.5	)

Summary of Operating Loss Carryforward and Deductible Temporary Differences

c. The operating loss carryforward and deductible temporary differences for which no deferred income tax assets have been recognized

		December 31, 2023												December 31, 2024
						NT$ (In Millions)												NT$ (In Millions)
Operating loss carryforward
No expiry date						$	640.0											$	11,896.9
Expire in succession after 2032						$	2,781.4											$	-
Deductible temporary differences						$	52,686.2											$	83,705.6

X

- Definition

The disclosure of deferred taxes. [Refer: Deferred tax liabilities; Deferred tax assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 10
-Subparagraph e
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-URIDate 2024-03-27

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