Aircraft buyers based in the US who plan to use their new and used planes primarily for business purposes have entered 2025 with reasons for hope that the year might prove favorable in terms of the tax treatment the US Federal Government affords their newly acquired aviation assets.
That hope is new, and it follows a year in which the tax picture at both US federal and state level for aircraft buyers began to show early signs of darkening.
In 2024, under what proved to be the outgoing Biden Administration, the US Internal Revenue Service (IRS) pronounced that it would direct greater scrutiny toward finding out to what extent owners were using their aircraft for business purposes – as legislation conferring tax benefits on purchases of aviation assets meant them to do.
The IRS further indicated it would put that scrutiny into practical effect by conducting increased numbers of tax audits on owners of new and used business and private aircraft.
That planned intensification of IRS focus would mean those owners who couldn’t document clearly that at least 50% of the flying they conducted with their aircraft during the year would be ineligible for the bonus depreciation schedule available, under the 2017 Tax Cuts and Jobs Act.
As matters stand today, the act’s provisions for bonus depreciation on aircraft and various other purchased assets are scheduled to end in 2027.
But the dawning of 2025 – and with it the assumption of power by the Trump Administration – has brought what is widely expected to be a dramatic sea change in the US Government’s regulatory ethos as it affects many areas of business. That sea change is expected to include a relaxation of tax legislation, and perhaps a contraction in the size and oversight power of the IRS.
As of this early-February writing, it remains to be seen to what extent the Trump Administration will honor the political promises the incoming Administration made during last year’s Presidential campaigning process.</p>
But public pronouncements and hastily drawn-up Presidential Executive Orders, transmitted soon after Donald Trump resumed office on January 20, indicated that on a wide variety of fronts Trump and his team intended to back their previous rhetoric with prompt action.
However, purely as far as aircraft purchasing and its associated tax planning in 2025 are concerned, it appears clear from the start that if they are all acted upon, the Trump Administration’s promises will create a complex and possibly confusing background for buyers’ decision- making this year.
But that complex background could include some clear bright spots for those contemplating purchasing business and private aircraft in 2025.
According to the three experts interviewed for this article, one ray of hope for US buyers of aircraft this year is that under the new and possibly more taxation-lenient Trump Administration, a potentially weakened, smaller and less enforcement-focused IRS will not put into effect the increased audit program it promised aircraft buyers in 2024.
The experts reckon another important hope is that, in concert with a compliant Congress, the new administration will make permanent the business-friendly bonus depreciation provisions enacted in 2017’s Tax Cuts and Jobs Act – doing away with what otherwise would be their 2027 sunset.
Will 100% Bonus Depreciation Return?
Scott Burgess, Partner at Aviation Legal Group, says some Business Aviation industry insiders are expecting that when the Trump Administration enacts new tax legislation – which will likely be in the latter half of this year – the new rules will renew the 100% bonus depreciation last available in 2022 for purchases of new and used aircraft.
Were this to happen, its provisions might act in either of two ways, one potentially more tax-beneficial than the other to buyers of Part 91 aircraft.
At present, for FAR Part 91-certified aircraft flown at least 50% of the time on documented business missions, the bonus depreciation schedule enacted in 2017 allows for an annually steady declining percentage of depreciation over a five-year schedule from 2022, from 100% in Year 1 (2022) to 20% in Year 5 (2026).
According to Leah Alexander, Aircraft Sales & Acquisitions for Duncan Aviation, in practice that means the level of bonus depreciation allowed in 2025 is 40% for business use, and applies to most new and used aircraft placed into service this year, even if they were bought before 202
So, if an owner bought an aircraft in 2024 – when the bonus depreciation rate was 60% – but only puts it into service this year, then the owner is only allowed to depreciate 40% of the cost of the aircraft in their 2025 tax return.
But if an owner puts a new 2025-purchased aircraft into service in 2026 and the purchase meets the requirements for “Certain Aircraft and Transportation Property” as specified in Section 168(K)(2)(B) of the Internal Revenue Code (IRC), they would be allowed to depreciate 40% of its cost in 2026, instead of the 20% bonus depreciation otherwise specified for 2026 by the Tax Cuts and Jobs Act of 2017.
So, it will be important for anyone planning to buy an aircraft in 2025 and put it into service in 2026 to consult with their tax advisor to assess if the transaction will meet the ‘Certain Aircraft and Transportation Property’ IRC criteria and, if so, whether the purchase is likely to benefit their expected 2026 depreciation planning and tax position.
Yet, this situation could change markedly for the better as far as aircraft buyers in 2025 are concerned, if new tax legislation expected from the Trump Administration this year does come into effect.
The BizAv industry is hoping that the Trump Administration’s new tax legislation will allow 100% bonus depreciation every year. For every year in which that tax legislation remained in effect, it would mean buyers of Part 91 aircraft flying their aircraft at least 50% of the time for business purposes would be able to depreciate the entire cost of their aircraft in the year they bought it.
The alternative, a somewhat less attractive scenario, which new Trump Administration tax legislation might offer aircraft owners is that it could renew the five-year declining-balance bonus depreciation the existing rules allow before the 2027 ‘sunset’.
Questions Remain on 2025 Aircraft Buying Strategy
One consequence of the US Business Aviation community’s widespread belief that new federal tax legislation, beneficial to aircraft purchasing will be enacted this year by the new Trump Administration, is that some potential buyers decided in 2024 to delay their aircraft acquisitions to this year, according to Burgess.
Even the timing of any aircraft purchase within this year could be important in terms of maximizing the amount of bonus depreciation available for the buyer, he points out.
Burgess also notes that while the US BizAv industry still confidently expects 100% bonus depreciation to return later this year, it is not clear yet whether the hoped-for new legislation will it to new and used aircraft alike, or whether – as was the case in times gone by – the bonus will apply only to purchases of new aircraft.
The key question for any buyer planning to acquire an aircraft in 2025 is whether to purchase an aircraft now and hope it is retroactively covered for 100% bonus depreciation in 2025 by new tax legislation, or to forgo buying until the new tax rules are in place and no unanswered questions remain regarding allowable depreciation.
Even if new legislation is favorable to both new and used aircraft, and even if it applies retroactively, buyers should remain vigilant in documenting their business use of the aircraft, says Alexander.
“It’s unlikely that needing that business use case will change,” she says. “Under the previous Trump Administration, we saw a contraction in IRS audit activity. But that’s not to say that the next Administration won’t revert to increased auditing. So don’t rest on your laurels in terms of documenting the business use of your aircraft.”
Buyers should also make sure their tax, banking and other advisors structure their aircraft acquisitions carefully, in order to extract the maximum benefit from the depreciation rules available to a given deal at the time, Alexander advises. Transactions should also be structured with close attention paid to making the maximum benefit for buyers’ overall business strategies and taxable income positions.
“Is it sensible to wait until a new tax regime arrives to allow you to offset your profits with this transaction?” she questions. If the business needs the aircraft now, or if the aircraft is ideal for the buyer’s needs and taste and the buyer might risk missing out on the aircraft later, then the buyer should complete the purchase.
Either that, or seek to come to an arrangement with the seller to complete the acquisition officially at a later date when more beneficial tax legislation might have been enacted.
Possible Tariffs on the 2025 Skyline
Many of the pronouncements made by President Trump both shortly before and soon after he took office detailed how he planned to impose new or increased tariffs on the goods the US imports from a wide slew of its trading partners; particularly those with which the nation normally has warmly cordial relations.
If enforced over the longer term against countries such as Canada, Mexico, EU nations (particularly France), China, or others at which Trump might take aim in the future, new or increased tariffs on manufactured goods could pose sizable headaches for buyers of new business and private aircraft – and potentially for their manufacturers, the world over.
While Burgess notes that Bombardier and Dassault might quickly run afoul of new tariffs threatened by Trump against France, Canada and Mexico, it should be noted that both OEMs have a considerable presence in the US, with both boasting multiple production, maintenance, warehousing and office spaces throughout the country.
Brazilian OEM Embraer also has large sales and completion facilities in the US. Thus, in Business Aviation terms, any tariff action taken by the Trump Administration that might hit Bombardier, Dassault or even Embraer (Brazil had not featured as a target in Trump’s tariff discussions as of early February) would be almost certain to hurt the US economy just as much as it would the originally intended target nation.
Additionally, China and other Asian and Middle East nations are home to many customers for Gulfstream’s Ultra-Long-Range jets. And Textron is the world’s biggest manufacturer of turboprop business and utility aircraft and also makes more business jets than any other company, with its aircraft being purchased by customers worldwide.
As a result, retaliatory imposition of tariffs by other countries could hurt the US business and private aircraft manufacturing industry greatly.
In addition, the on-off nature of tariff-based trade wars and the unintended consequences that can arise from them make diplomacy by tariff a risky business for aircraft sellers, buyers and manufacturers.
The US Trade Commission’s application (at Boeing’s behest) of 300% tariffs on US sales of the Bombardier C-Series – now the hot-selling Airbus A220, the orderbook for which has shot up to nearly 1,000 aircraft following Bombardier’s sale of the program to Airbus – provides a famous example of a US OEM being stung badly by hasty tariff action.
For all these reasons, “we can hope that the tariff threat is merely a negotiating tool,” says Alexander.
Could the IRS Code Section 179 Provisions Change?
For buyers of small new Part 91 aircraft, or older used piston, turboprop and jet aircraft, another potentially important point in any new Trump Administration federal tax legislation is whether the new rules make any changes to the existing tax deduction allowed under Section 179 of the US Internal Revenue Code.
As matters stand, for aircraft bought in 2025 for business use and costing up to $1.25m, Section 179 allows the entire cost of the aircraft to be taken as a deduction in the buyer’s tax return.
Although Section 179 may only be applicable in certain scenarios, for purchases of smaller aircraft it can provide a benefit similar in effect to the 100% bonus depreciation last allowed in 2022 for larger business aircraft, according to KJ McCarter, an Aircraft Tax Advisor for Aviation Tax Consultants.
The Section 179 deduction is subject to three limitations, McCarter notes. The first is a limitation on the amount of the deduction which can be claimed in the buyer’s tax return – $1.22m in the 2024 tax return for aviation assets bought in 2024 and $1.25m for aviation assets bought this year.
Also affecting the potential Section 179 deduction is a threshold investment amount. For 2025 that Section 179- qualifying threshold investment amount is $3.13m. Placing into service during the year any greater investment in Section 179-qualifying equipment reduces the potential deduction from the potential $1.25m maximum by the amount the buyer’s investment exceeds $3.13m.
So, if a buyer were to place into service in 2025 Section 179-qualifying equipment costing $4.38m or more (i.e., $3.13m plus $1.25m), then the buyer would not be able to claim any amount as a Section 179 deduction. But were the buyer to place, say, $4.2m of such equipment into service during the year, then they could deduct $180k in their tax return under the Section 179 provision.
The third limitation potentially affecting any Section 179 deduction is the amount of taxable income the equipment a buyer obtains in the year from the active conduct of a trade or business.
If the potential Section 179 deduction exceeds the amount of taxable income the equipment buyer generates from their trade or business, then the deduction is reduced by the amount by which it exceeds that taxable income. However, the taxpayer can carry forward that exceeding amount to their next tax year and add it to the amount they would otherwise deduct in their tax return for that year.
Bear in Mind State and County Taxes
In all the discussion and expectation about the possibility of beneficial new federal tax legislation being enacted later this year, the parts that state sales and use taxes and county property taxes play in the overall aircraft- buying and aircraft-owning picture could potentially pass without much notice.
But those taxes are not going away. Indeed, quite the contrary is true, according to McCarter, who cites the increasing presence, relevance and burden of state and county taxes as a key reason why aircraft buyers in the US should always make sure they have a tax advisor in the advisory teams they put together to help them buy their aircraft.
“Across the board there is constant movement in terms of the state sales and use tax climate,” he says. “In general, states are becoming more proactive and organized in their efforts to impose use taxes and counties are becoming more proactive and organized in their efforts to impose property tax.”
Not only are states focusing more on generating additional sales and use taxes from business and private aviation ownership and operations, but they are also becoming much more technologically savvy in determining exactly where such aircraft are based, according to McCarter.
As a result, it is becoming harder for owners to claim for tax reasons that their aircraft are based in one state when in fact they mainly operate to, from or within another. “States are starting to use different methods to track planes to determine where they are based,” he says. “So, it is critical to understand if you owe [state] use tax or if you qualify for an exemption.”
One well-known example is California, which levies a hefty use tax which is often close to – or even exceeds – 10% on business aircraft unless their operations meet its Interstate Commerce Exemption, or another California state exemption. If the operations do meet the exemption, then the aircraft and their owners are not subject to any California use tax liability.
Among other requirements, California’s Interstate Commerce Exemption requires more than 50% of the aircraft’s flight hours in a specified six-month period to be operated on interstate commerce missions. It also requires that those missions are fully documented and accounted for.
Whether or not their aircraft use can qualify for the California Interstate Commerce Exemption, owners who base their aircraft in California are subject to county personal property taxes, levied by the county in which a given aircraft is based. But those taxes are generally around 1% a year, according to McCarter.
Some states are known for having higher sales and use taxes than others, and are keener to collect those taxes, Burgess notes, adding “Florida, Texas, Colorado, California and New Jersey are all relatively strict and aggressive in trying to collect tax.”
Interesting Prospects Ahead
So far in 2025, little or nothing seems to have changed in terms of state tax regulations compared with last year, Burgess says. “I’m not aware of any significant changes in sales or use taxes this year or late last year. But their laws come in on a phased basis, and a lot take place in October.”
The likelihood of changes in some states’ taxation of business and private aircraft in Q4, together with the prospect of new federal tax legislation in the latter half of 2025 – probably beneficial to aircraft owners, but to what degree nobody knows yet – may make for a very interesting year this year, for owners and tax advisors alike.
It will be even more interesting for owners, their accountants and their tax advisors if the IRS is somehow able, under the Trump Administration, to follow up its Biden Administration promise to audit business and private aircraft usage more closely.
That possibility, while perhaps remote, means “it’s critically important to follow the IRS’s rules [on business and private use of aircraft], so that your tax advisors can demonstrate within an IRS audit that the regulations have been properly adhered to,” McCarter concludes.