Depreciation and Tax Benefits of Fractional Ownership

How does depreciation actually work on a fractional share?

A fractional share is treated as 5-year MACRS property for federal tax purposes, the same class life as a wholly-owned business aircraft. The IRS does not care that you own 1/16 of a Citation Latitude rather than the whole airframe — your basis is your share price, and that basis is recovered on a five-year double-declining schedule with a half-year (or mid-quarter) convention.

For a NetJets 1/16 Latitude share at roughly $600,000, the standard MACRS schedule without bonus would recover 20% in year one, 32% in year two, 19.2% in year three, 11.52% in years four and five, and 5.76% in year six. That pulls roughly $192,000 of deductions into year two alone at a 37% federal rate — about $71,000 of cash tax deferral on a single line item, before state.

What is left of bonus depreciation in 2024 and beyond?

Bonus depreciation is phasing out and will be zero by 2027 absent Congressional action. The current schedule under the Tax Cuts and Jobs Act sunset is 60% in 2024, 40% in 2025, 20% in 2026, and 0% in 2027. A $600,000 share placed in service in 2024 generates $360,000 of first-year bonus, plus 20% MACRS on the remaining $240,000 basis — roughly $408,000 of year-one deductions, or about $151,000 in federal tax deferral at 37%.

Push that same purchase into 2026 and the math collapses: $120,000 of bonus plus 20% MACRS on $480,000 yields $216,000 of first-year deductions. The difference between buying in 2024 versus 2026 is roughly $71,000 of present-value tax benefit on an identical share. That is the single largest variable in fractional purchase timing right now.

Does §179 expensing help on a fractional share?

§179 is largely irrelevant for fractional buyers because the dollar cap and phaseout make it the wrong tool. The 2024 §179 limit is $1.16 million with a $2.89 million investment phaseout, but more importantly, §179 requires more-than-50% qualified business use and is subject to taxable income limits. Bonus depreciation has no income limit and can create or expand a net operating loss. For a $600,000 share inside a profitable operating company, bonus is the cleaner instrument.

The exception: a small business buying its only aircraft asset in a year of strong income may pair §179 with regular MACRS to fine-tune the deduction. Most fractional purchasers will not bother.

What does the business-use test actually require?

To claim accelerated depreciation, qualified business use must exceed 50% in the year of acquisition and every subsequent year of the recovery period. Qualified business use means flights for the trade or business of the taxpayer — not personal travel, not commuting, and not flights provided as compensation to 5% owners or related parties (those count against the test under §280F).

If business use drops below 50% in any year before the share is fully depreciated, the IRS recaptures the excess depreciation as ordinary income and forces a switch to straight-line over the remaining life. On a share that took $408,000 of first-year deductions, a recapture event in year three can generate a six-figure surprise tax bill. Document every flight: tail number, date, passengers, business purpose, and miles. Fractional operators provide flight logs; the substantiation burden is on the owner.

How are personal flights taxed under SIFL?

Personal use of a fractional share by an employee, owner, or guest is imputed as income using the Standard Industry Fare Level (SIFL) formula published semi-annually by the Department of Transportation. SIFL multiplies a base cents-per-mile rate by distance, then applies an aircraft multiple — 62.5% for non-control employees on aircraft over 25,000 pounds, scaling up to 400% for control employees on the largest jets.

A control employee flying a 1,500-mile personal trip on a heavy fractional aircraft can pick up $4,000–$6,000 of imputed W-2 income per leg under current SIFL tables. That is the personal cost of the flight for tax purposes — meaningfully cheaper than the company deducting the full operating cost, which is why SIFL remains the dominant method despite the 2017 disallowance of entertainment-use deductions for the employer.

What happens at the buyback — and what does it do to your depreciation?

The operator buyback at fair market value triggers depreciation recapture as ordinary income up to the amount of depreciation previously claimed. If you paid $600,000 for a share, depreciated it to a $200,000 basis, and the operator buys it back at $360,000, the $160,000 gain is recaptured at ordinary rates — not capital gains.

This is the single most misunderstood element of fractional tax planning. The accelerated deductions in years one through five are a deferral, not a permanent benefit, unless the owner rolls into a new share via a §1031-style structure (no longer available for personal property post-TCJA) or continues acquiring replacement shares to absorb the recapture with new bonus depreciation. Most buyers simply pay the tax at exit and treat the intervening years as a financing benefit.

How does the five-year tax math actually pencil?

On a 2024 NetJets 1/16 Latitude share: $600,000 share price plus 60 months at $17,000 monthly management ($1.02M) plus 250 occupied hours over five years at roughly $4,800/hour ($1.2M) equals about $2.82M gross before fuel surcharges. The share itself generates roughly $222,000 of present-value tax deferral over the depreciation period at a 37% federal rate. Monthly management and hourly fees are fully deductible as ordinary business expenses each year — adding another $820,000 of cumulative federal benefit on the operating side at the same rate.

Net after a 60% residual buyback of $360,000 and recapture: the all-in five-year after-tax cost lands near $1.6M. Compare that to a jet card at $250,000 per 25 hours fully expensed in the year paid — for the same 250 hours, roughly $2.5M gross, $1.58M after federal deduction. The depreciation advantage of fractional ownership narrows considerably once bonus drops below 40%. By 2027, with zero bonus, the jet card math wins on a pure tax-efficiency basis for most buyers flying under 200 hours annually.