The gross and net carrying values of intangible assets as of the balance sheet dates, by major intangible asset class are as follows (in millions):


	June 30, 2026						September 30, 2025
	Gross Amount		Accumulated Amortization		Net Amount		Gross Amount		Accumulated Amortization		Net Amount
Intangible assets subject to amortization
Trade/domain names and other licenses	$	7.1	$	(4.3)	$	2.8	$	10.6	$	(4.9)	$	5.7
Software programs/platforms	2.4		(2.4)		—		2.4		(2.0)		0.4
Client and supplier base	465.7		(41.2)		424.5		445.0		(19.2)		425.8
Total intangible assets subject to amortization	475.2		(47.9)		427.3		458.0		(26.1)		431.9

Intangible assets not subject to amortization
Website domains	2.2		—		2.2		2.3		—		2.3
Business licenses	3.7		—		3.7		3.7		—		3.7
Total intangible assets not subject to amortization	5.9		—		5.9		6.0		—		6.0
Total intangible assets	$	481.1	$	(47.9)	$	433.2	$	464.0	$	(26.1)	$	437.9

Amortization expense related to intangible assets was $8.6 million and $1.3 million for the three months ended June 30, 2026 and 2025, respectively. Amortization expense related to intangible assets was $26.5 million and $3.6 million for the nine months ended June 30, 2026 and 2025, respectively.


(in millions)
Fiscal 2026 (remaining months)	$	7.9
Fiscal 2027	31.1
Fiscal 2028	30.0
Fiscal 2029	29.2
Fiscal 2030 and thereafter	329.1
Total intangible assets subject to amortization	$	427.3