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Income Taxes (Tables)
12 Months Ended
Sep. 30, 2024
Income Tax Disclosure [Abstract]  
U.S. and Non-U.S. Income Before Income Tax
The Company’s income before income taxes by fiscal year consisted of the following:
For the Years Ended
September 30,
202420232022
 (in millions)
U.S.$14,537 $13,339 $11,051 
Non-U.S.9,379 7,698 7,085 
Total income before income taxes
$23,916 $21,037 $18,136 
Comprehensive Income Tax (Expense) Benefit Components Table
Income tax provision by fiscal year consisted of the following:
For the Years Ended
September 30,
202420232022
 (in millions)
Current:
U.S. federal$2,694 $2,630 $2,166 
State and local298 293 104 
Non-U.S.1,281 1,324 1,245 
Total current taxes4,273 4,247 3,515 
Deferred:
U.S. federal(132)(339)(231)
State and local(18)(1)(77)
Non-U.S.50 (143)(28)
Total deferred taxes(100)(483)(336)
Total income tax provision$4,173 $3,764 $3,179 
Components of Deferred Tax Assets and Liabilities
The following table presents the components of deferred tax assets and liabilities:
September 30,
20242023
 (in millions)
Deferred Tax Assets:
Accrued compensation and benefits$221 $212 
Accrued litigation
374 365 
Client incentives855 630 
Net operating loss carryforwards206 232 
Comprehensive loss79 72 
Federal benefit of state taxes16 125 
Other102 66 
Valuation allowance(212)(149)
Deferred tax assets1,641 1,553 
Deferred Tax Liabilities:
Property, equipment and technology, net(295)(350)
Intangible assets(6,404)(6,063)
Unrealized gains on equity securities(81)(103)
Foreign taxes(22)(25)
Deferred tax liabilities(6,802)(6,541)
Net deferred tax liabilities$(5,161)$(4,988)
Reconciliation of the US Statutory Federal Tax Rate
The following table presents a reconciliation of the income tax provision to the amount of income tax determined by applying the U.S. federal statutory income tax rate to income before income taxes:
 
For the Years Ended
September 30,
 202420232022
 (in millions, except percentages)
U.S. federal income tax at statutory rate$5,022 21 %$4,418 21 %$3,809 21 %
State income taxes, net of federal benefit258 1 %245 %216 %
Non-U.S. tax effect, net of federal benefit(828)(4 %)(758)(3 %)(588)(3 %)
Reassessment of an uncertain tax position
  %(142)(1 %)— — %
Conclusion of audits(223)(1 %)— — %— — %
State tax apportionment position  %— — %(176)(1 %)
Other, net(56) %— %(82)— %
Income tax provision$4,173 17 %$3,764 18 %$3,179 18 %
Unrecognized Tax Benefits Reconciliation, Table
The following table presents a reconciliation of beginning and ending unrecognized tax benefits by fiscal year: 
202420232022
 (in millions)
Balance as of beginning of period
$3,497 $2,683 $2,488 
Increase in unrecognized tax benefits related to prior years
148 515 10 
Decrease in unrecognized tax benefits related to prior years
(322)(190)(143)
Increase in unrecognized tax benefits related to current year
556 510 350 
Decrease related to settlements with taxing authorities
(127)(17)(19)
Reduction related to lapsing statute of limitations
(2)(4)(3)
Balance as of end of period
$3,750 $3,497 $2,683