Depreciation is one of the most significant tax benefits of aircraft ownership. It allows you to deduct the cost of the aircraft over its useful life, reducing your taxable income and thereby lowering your tax liability. Understanding the various depreciation methods and how they apply to aircraft is essential for maximizing this benefit.
This article provides general tax information. Consult a qualified tax professional for advice specific to your situation.
Tax Depreciation vs. Market Depreciation
It is important to distinguish between two types of depreciation:
- Tax depreciation: An accounting method that allows you to deduct the cost of the aircraft over a defined period for tax purposes. This is a paper deduction — it reduces taxable income regardless of the aircraft's actual market value.
- Market depreciation: The actual decline in the aircraft's fair market value over time. This represents the real economic cost of value loss.
These two tracks operate independently. It is possible for an aircraft to appreciate in market value while being depreciated for tax purposes — as happened during the post-pandemic market surge.
MACRS Depreciation
The Modified Accelerated Cost Recovery System (MACRS) is the standard method for depreciating aircraft in the United States.
Recovery Period
- 5-year property: General aviation aircraft (the most common classification for business jets)
- 7-year property: Certain aircraft used in specific commercial operations
MACRS Depreciation Table (5-Year Property, Half-Year Convention)
| Year | Rate | Example ($20M Aircraft) | Cumulative |
|---|---|---|---|
| 1 | 20.00% | $4,000,000 | $4,000,000 |
| 2 | 32.00% | $6,400,000 | $10,400,000 |
| 3 | 19.20% | $3,840,000 | $14,240,000 |
| 4 | 11.52% | $2,304,000 | $16,544,000 |
| 5 | 11.52% | $2,304,000 | $18,848,000 |
| 6 | 5.76% | $1,152,000 | $20,000,000 |
Note: The 5-year property class actually takes 6 calendar years to fully depreciate due to the half-year convention in the first and last years.
Bonus Depreciation
Bonus depreciation allows an additional first-year deduction on top of (or instead of) the regular MACRS depreciation. Under current law:
Bonus Depreciation Phase-Down
- 2022: 100% — full cost deducted in year 1
- 2023: 80%
- 2024: 60%
- 2025: 40%
- 2026: 20%
- 2027+: 0% (unless Congress acts)
Worked Example: 2026 Purchase
A $20 million aircraft purchased and placed in service in 2026:
| Year | Bonus (20%) | MACRS on Remainder | Total Deduction |
|---|---|---|---|
| 2026 | $4,000,000 | $3,200,000 | $7,200,000 |
| 2027 | - | $5,120,000 | $5,120,000 |
| 2028 | - | $3,072,000 | $3,072,000 |
| 2029 | - | $1,843,200 | $1,843,200 |
| 2030 | - | $1,843,200 | $1,843,200 |
| 2031 | - | $921,600 | $921,600 |
First-year deduction: $7.2 million. At a 37% marginal tax rate, this generates $2.66 million in year-one tax savings.
Cost Segregation
Some aircraft components may qualify for shorter depreciation periods through cost segregation analysis:
- Interior furnishings and cabinetry may qualify as 5-year or even 3-year property
- Avionics equipment may have its own depreciation schedule
- Engines under separate maintenance programs may be treated differently
A cost segregation study, conducted by a qualified specialist, can identify opportunities to accelerate depreciation on specific aircraft components.
Depreciation Recapture
When you sell a depreciated aircraft, you may face depreciation recapture — the requirement to pay tax on the gain attributable to prior depreciation deductions.
- If you sell for more than your adjusted basis (original cost minus accumulated depreciation), the gain is taxable
- Recapture is taxed at ordinary income rates up to the amount of depreciation previously claimed
- Gain above the original purchase price (if any) is taxed at capital gains rates
- Like-kind exchanges (Section 1031) have been eliminated for aircraft
Business Use Requirement
The aircraft must be used predominantly (more than 50%) for business purposes to qualify for accelerated depreciation and bonus depreciation. If business use drops below 50% in any year, you may be required to:
- Switch to straight-line depreciation
- Recapture previously claimed accelerated depreciation
- Pay additional tax on the recaptured amount
Meticulous flight log documentation is essential to support business use claims.
Planning Considerations
- Timing of purchase: Placing the aircraft in service before year-end maximizes the first-year deduction
- Entity structure: The ownership entity affects how depreciation flows to the individual taxpayer
- AMT implications: Alternative Minimum Tax rules may limit the benefit of accelerated depreciation for some taxpayers
- State taxes: Not all states conform to federal bonus depreciation rules
- Sale planning: Coordinate the timing of a sale with your overall tax strategy to manage recapture
