Acquisitions and Divestitures	12 Months Ended
Mar. 31, 2026
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures Acquisitions PAR Government Systems Corporation On June 7, 2024, the Company completed the acquisition of PAR Government Systems Corporation (“PGSC”), previously a wholly owned subsidiary of PAR Technology Corporation, for approximately $99 million, net of post-closing adjustments and incurred transaction costs as part of the acquisition. PGSC was founded in 1985 and headquartered in Rome, New York, and delivers differentiated services and solutions in strategic mission areas, including the provision of real-time communications and mobile situational awareness to maintain battlespace dominance for a range of government customers. The acquisition was funded with cash on hand. As a result of the transaction, PGSC became a wholly owned subsidiary of Booz Allen Hamilton Inc. The acquisition was accounted for under the acquisition method of accounting. The Company completed the determination of fair values of the acquired assets and liabilities assumed during the fourth quarter of fiscal 2025. The goodwill recognized of $61 million is primarily attributable to PGSC’s specialized workforce and the expected synergies between the Company and PGSC, and is deductible for tax purposes. The intangible assets recognized of $27 million consist primarily of contract assets and are being amortized over the estimated useful life of twelve years. Divestitures Sale of Contracts On November 30, 2025, the Company completed a transaction for the sale of a group of contracts, as well as the assets and liabilities associated with those contracts and the workforce that provides services under those contracts. As a result of this transaction, during fiscal 2026 the Company recognized a pre-tax net gain of $6 million, inclusive of working capital adjustments, which is reflected in other income (expense) on the consolidated statements of operations. The consideration for the sale is subject to customary working capital adjustments and contingent consideration, which may impact the amount of the gain ultimately recognized.

On June 7, 2024, the Company completed the acquisition of PAR Government Systems Corporation (“PGSC”), previously a wholly owned subsidiary of PAR Technology Corporation, for approximately $99 million, net of post-closing adjustments and incurred transaction costs as part of the acquisition. PGSC was founded in 1985 and headquartered in Rome, New York, and delivers differentiated services and solutions in strategic mission areas, including the provision of real-time communications and mobile situational awareness to maintain battlespace dominance for a range of government customers. The acquisition was funded with cash on hand. As a result of the transaction, PGSC became a wholly owned subsidiary of Booz Allen Hamilton Inc.

The acquisition was accounted for under the acquisition method of accounting. The Company completed the determination of fair values of the acquired assets and liabilities assumed during the fourth quarter of fiscal 2025.

The goodwill recognized of $61 million is primarily attributable to PGSC’s specialized workforce and the expected synergies between the Company and PGSC, and is deductible for tax purposes. The intangible assets recognized of $27 million consist primarily of contract assets and are being amortized over the estimated useful life of twelve years.

On November 30, 2025, the Company completed a transaction for the sale of a group of contracts, as well as the assets and liabilities associated with those contracts and the workforce that provides services under those contracts. As a result of this transaction, during fiscal 2026 the Company recognized a pre-tax net gain of $6 million, inclusive of working capital adjustments, which is reflected in other income (expense) on the consolidated statements of operations. The consideration for the sale is subject to customary working capital adjustments and contingent consideration, which may impact the amount of the gain ultimately recognized.