Other intangible assets (Tables)


	Regulatory licences £m	Software £m	Assets in the course of construction £m	Total £m
Cost at 1 April 2024	1,714	3,093	392	5,199
Exchange adjustments	—	(61)	(7)	(68)
Additions	—	16	462	478
Disposals	—	(7)	—	(7)
Reclassifications1	—	376	(363)	13
Reclassification to held for sale (note 10)	—	(16)	—	(16)
Cost at 1 April 2025	1,714	3,401	484	5,599
Exchange adjustments	—	(56)	(8)	(64)
Additions	—	84	609	693
Disposals	—	(10)	—	(10)
Reclassifications¹	—	547	(556)	(9)
Cost at 31 March 2026	1,714	3,966	529	6,209
Accumulated amortisation at 1 April 2024	—	(1,758)	(10)	(1,768)
Exchange adjustments	—	36	—	36
Amortisation charge for the year	—	(323)	—	(323)
Accumulated amortisation of disposals	—	7	—	7
Reclassifications¹	—	2	—	2
Reclassification to held for sale (note 10)	—	11	—	11
Accumulated amortisation at 1 April 2025	—	(2,025)	(10)	(2,035)
Exchange adjustments	—	25	—	25
Amortisation charge for the year	—	(339)	—	(339)
Accumulated amortisation of disposals	—	10	10	20
Reclassifications¹	—	(1)	—	(1)
Accumulated amortisation at 31 March 2026	—	(2,330)	—	(2,330)
Net book value at 31 March 2026²	1,714	1,636	529	3,879
Net book value at 31 March 2025	1,714	1,376	474	3,564

1.Reclassifications includes amounts transferred to property, plant and equipment (see note 13).

2.The Group has capitalised £224 million (2025: £271 million) in relation to the Gas Business Enablement system in the US, of which

£224 million (2025: £271 million) is in service and is being amortised over 10 years, with the remainder included within assets in the course

of construction. A further £72 million (2025: £82 million) relates to our UK general ledger system within software and is being amortised