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● CJI ANALYSIS ·by Yves Le Marquand ·May 29, 2026 ·10:17Z

How the OBBBA Is reshaping the private aircraft market and why Q4 2025 was unlike anything before | Corporate Jet Investor | CJI news

The One Big Beautiful Bill Act's reinstatement of 100% bonus depreciation for aircraft acquired after January 19, 2025, triggered an unprecedented surge in transactions during Q4 2025 as buyers rushed to secure immediate tax benefits before year-end. Tax-motivated demand reduced buyer price sensitivity, elevated valuations for newer aircraft, expanded lender financing capacity, and shifted preferences from leasing toward ownership structures capable of capturing full depreciation benefits. The concentrated activity demonstrated how tax policy can rapidly reshape market dynamics, valuation expectations, and ownership strategies in private aviation.
Detailed analysis

The One Big Beautiful Bill Act (OBBBA), which restored 100% bonus depreciation under IRC §168(k) for qualifying assets — including aircraft — acquired and placed in service after January 19, 2025, fundamentally altered the private aviation transaction landscape in the final quarter of 2025. Unlike prior year-end surges driven primarily by operational planning cycles, Q4 2025 activity was dominated by tax-motivated buyers with clear visibility into their year-end taxable income. The incentive structure was binary and time-sensitive: assets placed in service before December 31, 2025 generated a full 2025 deduction, while deals closing in January 2026 pushed the tax benefit an entire year forward. That single-year deferral created a concentrated, high-urgency deal environment that proved unlike anything aviation finance professionals had observed in recent memory, compressing what might have been a multi-quarter demand curve into a narrow November-December window.

For pilots and operators working within Part 91, Part 135, and fractional environments, the downstream effects of this tax-driven compression are practically significant. Valuations on newer large-cabin aircraft firmed sharply during Q4 2025, dealer discounts largely disappeared, and seller leverage reached levels not seen since the immediate post-COVID demand spike. Lenders responded by expanding financing capacity commensurate with rising appraised values, enabling larger loan amounts and more aggressive underwriting. For flight departments evaluating fleet upgrades or replacements in 2026, these elevated Q4 2025 comparables now function as the new pricing baseline — meaning acquisition costs for comparable aircraft will reflect the premium environment established during the bonus depreciation rush, regardless of whether a prospective buyer intends to capture the tax benefit.

The OBBBA's restoration of full expensing also meaningfully shifted the ownership-versus-leasing calculus for qualified buyers. Historically, leasing structures appealed to operators seeking to preserve capital and avoid depreciation risk on depreciating assets. With 100% first-year expensing available on purchased aircraft, the effective net capital outlay for ownership — particularly when layered with competitive debt financing — narrowed considerably relative to lease payments. Both full ownership and fractional program acquisitions saw accelerated Q4 demand as a result, suggesting that operators across the utilization spectrum were recalibrating their fleet strategies around tax optimization rather than operational need alone. Fleet managers and aviation directors advising ownership groups should recognize that this dynamic places upward pressure on fractional program pricing and reduces the availability of desirable used inventory as buyers who might have leased instead elected to purchase.

The broader market context amplifies the OBBBA's impact. The structural supply constraint created by OEM production backlogs extending well into the 2030s for large-cabin aircraft means that the used market has no near-term relief valve. Gulfstream, Bombardier, and Dassault order books remain heavily subscribed, and new delivery slots that would ordinarily normalize used market values are not available on any meaningful timeline. The OBBBA therefore layered a powerful tax incentive on top of an already supply-constrained market, producing valuation pressure that is unlikely to reverse quickly. For operators currently holding aircraft acquired in 2023 or 2024 at pre-surge valuations, this represents an unexpected balance sheet benefit — but also a more expensive upgrade path if they intend to step up to a larger or newer platform.

Looking into 2026 and beyond, the permanence of 100% bonus depreciation under current law means that tax-driven acquisition behavior is no longer a one-time event but an enduring feature of private aviation deal-making. Fleet acquisition strategy, upgrade timing, and financing structure decisions will increasingly be evaluated through the lens of tax planning rather than purely operational utility. For aviation legal counsel, finance teams, and flight operations managers supporting corporate flight departments, the OBBBA reinforces the necessity of integrating tax advisory expertise early in the aircraft acquisition process. Q4 2025 demonstrated with unusual clarity that when tax policy aligns with a supply-constrained market, asset values and transaction behavior can shift faster and more dramatically than aviation market fundamentals alone would suggest.

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