MATERIAL ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2025

Material Accounting Policies [Abstract]

New amendments which did not have a material impact on the consolidated financial statements

One new amendment exists for the first time in 2025, but is not applicable to these consolidated financial statements.

Amendments to IAS 21

Lack of Exchangeability - Amendments to IAS 21

1 January, 2025

Disclosure of foreign exchange rates

The following table summarises the principal exchange rates used by Sunrise (shown against CHF):


	31 December
	2025	2024	2023
Spot rates:
Euro	1.0739	1.0645	1.077
US Dollar	1.2603	1.1016	1.1916


	Year ended 31 December
	2025	2024	2023
Average rates:
Euro	1.0677	1.0502	1.0295
US Dollar	1.2070	1.1362	1.1135

Disclosure of detailed information about property, plant and equipment

The depreciation base is measured at cost less residual value and any write-downs. Depreciation is provided on a straight-line basis over the estimated useful life of the assets as follows:


Asset Category						Useful Lives
Buildings						15 to 33 years
Support capital and leasehold improvement						3 to 15 years
Network						2 to 33 years
Customer premises equipment ('CPE')						4 to 5 years

The useful lives per asset class are as follows:


Asset Category						Useful Lives
Land, Buildings and Other						3 to 33 years
Network						3 to 30 years


CHF in millions4	Network	Customer Premises Equipment	Support Capital and Leasehold Improvement	Land and Buildings	Assets Under Construction	Total
Cost:
Balance at 31 December 2023	4,722.6	328.7	167.5	30.1	347.5	5,596.4
Additions	291.3	88.9	27.8	—	—	408.0
Retirements and disposals	(211.9)	(101.3)	(20.9)	(5.3)	—	(339.4)
Reclassifications	(274.6)	(0.9)	25.8	0.1	173.2	(76.4)
Other	—	—	—	—	(1.0)	(1.0)
Balance at 31 December 2024	4,527.4	315.4	200.2	25.0	519.7	5,587.6
Additions	289.9	87.4	15.4	2.9	—	395.6
Retirements and disposals	(78.5)	(13.9)	(25.6)	(0.7)	—	(118.7)
Reclassifications	124.9	3.5	(0.3)	—	(184.8)	(56.7)
Other	0.1	—	(0.1)	—	(0.7)	(0.7)
Balance at 31 December 2025	4,863.8	392.4	189.6	27.1	334.2	5,807.1

4 Reclassified to conform with redefinition of asset categories as described in footnote.


CHF in millions5	Network	Customer Premises Equipment	Support Capital and Leasehold Improvement	Land and Buildings	Assets Under Construction	Total
Accumulated depreciation and impairment:
Balance at 31 December 2023	(3,037.9)	(159.9)	(83.3)	(19.5)	—	(3,300.6)
Depreciation	(269.2)	(65.1)	(29.8)	(3.9)	—	(368.0)
Retirements and disposals	211.4	101.3	21.0	5.3	—	339.0
Reclassifications	68.2	(2.9)	0.2	—	—	65.5
Other	15.0	—	—	—	—	15.0
Balance at 31 December 2024	(3,012.5)	(126.6)	(91.9)	(18.2)	—	(3,249.1)
Depreciation	(297.6)	(58.4)	(58.0)	(3.6)	—	(417.6)
Retirements and disposals	78.1	12.8	25.6	0.6	—	117.1
Reclassifications	(26.8)	4.5	(3.5)	—	—	(25.8)
Other	—	—	—	—	—	—
Balance at 31 December 2025	(3,258.8)	(167.7)	(127.8)	(21.2)	—	(3,575.5)

5 Reclassified to conform with redefinition of asset categories as described in footnote.


CHF in millions	Network	Customer Premises Equipment	Support Capital and Leasehold Improvement	Land and Buildings	Assets Under Construction	Total


Property and equipment, net:


Net carrying amount at 31 December 2024	1,514.9	188.8	108.3	6.8	519.7	2,338.5
Net carrying amount at 31 December 2025	1,605.0	224.7	61.8	5.9	334.2	2,231.6

Disclosure of detailed information about intangible assets

The rights are amortised on a straight-line basis over the contract term.


Asset Category						Useful Lives
Software						3 to 5 years
Licenses and rights						5 to 26 years
Brands and customer relationships						6 to 10 years
Other intangible assets						2 to 25 years

Changes in the carrying amounts of the intangible assets are as follows:


CHF in millions	Brands and Customers Relationships	Licenses and Rights	Software	Other Intangible Assets	Total


Cost:




1 January 2024	1,955.8	652.1	635.2	17.2	3,260.3
Additions	—	2.0	99.9	—	101.9
Retirements and disposals	—	(153.5)	(32.6)	(8.0)	(194.1)
Reclassifications	—	—	76.4	—	76.4
Other	1.9	—	—	3.6	5.5
31 December 2024	1,957.7	500.6	778.9	12.8	3,250.0

Additions	3.1	218.7	82.4	7.8	312.0
Retirements and disposals	—	—	(22.2)	(0.1)	(22.3)
Reclassifications	—	—	60.2	—	60.2
Other	0.2	(1.6)	0.6	12.4	11.6
31 December 2025	1,961.0	717.7	899.9	32.9	3,611.5


CHF in millions	Brands and Customers Relationships	Licenses and Rights	Software	Other Intangible Assets	Total


Accumulated amortisation:
1 January 2024	(1,026.9)	(319.5)	(375.3)	(8.7)	(1,730.4)

Amortisation	(321.7)	(69.0)	(155.0)	(4.2)	(549.9)

Retirements and disposals	—	153.5	32.6	8.0	194.1
Reclassifications	—	—	(65.5)	—	(65.5)
Other	—	—	(13.9)	—	(13.9)
31 December 2024	(1,348.6)	(235.0)	(577.1)	(4.9)	(2,165.6)

Amortisation	(320.2)	(71.6)	(122.3)	(4.7)	(518.8)


Retirements and disposals	—	—	22.2	0.1	22.3
Reclassifications	—	—	—	—	—
Other	0.1	(0.2)	(3.5)	(11.3)	(14.9)
31 December 2025	(1,668.7)	(306.8)	(680.7)	(20.8)	(2,677.0)


CHF in millions	Brands and Customers Relationships	Licenses and Rights	Software	Other Intangible Assets	Total


Intangible assets subject to amortisation, net:


Net carrying amount at 31 December 2024	609.1	265.6	201.8	7.9	1,084.4
Net carrying amount at 31 December 2025	292.3	410.9	219.2	12.1	934.5

Accounting policy for accounting standards issued but not yet effective

Standard

Name

Effective From

Amendments to IFRS 9 and IFRS 7

Classification and Measurement of Financial Instruments

1 January 2026

Amendments to IFRS 1, 7, 9, 10 and IAS 7

Annual Improvements to IFRS Accounting Standards

1 January 2026

Amendments to IFRS 9

Contracts Referencing Nature-Dependent Electricity

1 January 2026

IFRS 18

Presentation and Disclosure in Financial Statements

1 January 2027

IFRS 19

Subsidiaries Without Public Accountability: Disclosures

1 January 2027

Amendments to IFRS 10

Sale or Contribution of Assets between an Investor and its Associate or Joint Venture

To be determined

Amendments to IAS 21

Translation to a Hyperinflationary Presentation Currency

1 January 2027