08/10/2026
For decades, aircraft depreciation has followed a fairly predictable formula: once a business jet leaves the factory, its value begins a steady decline as the aircraft accumulates years and hours. But today’s preowned business jet market is challenging that conventional wisdom and in some cases, the numbers seem almost impossible to believe. Aircraft that were expected to lose significant value over seven years are instead holding nearly all of their original market value, while strong demand and limited supply continue to reshape the rules of the game. As Joseph Carfagna Jr. explores in The Fuzzy Math of Preowned Business Jet Values, the numbers may not add up the way they used to, but there’s a reason the market is producing some surprising results.
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Some seven-year-old jets have not depreciated at all Thirteen times seven is not 28, no matter how you try to calculate it. Remember the old Abbott an
