Can I Write Off a Boat or Airplane for Business? (2026)

Aircraft and boats are among the most heavily examined deductions on a business return, and they fail for different reasons. Aircraft fail on substantiation and passive loss rules. Boats fail on a specific statutory provision that makes most boat deductions impossible regardless of business use.

Both can work. Neither works the way promoters describe.

Boats Face the Entertainment Facility Rule

IRC Sec. 274(a)(1)(B) disallows any deduction for a facility used in connection with entertainment, amusement, or recreation. A boat is the textbook example, and the disallowance applies even if the use was primarily for business.

That means a boat used to entertain clients is not deductible. Not partially, not with substantiation. The facility rule is a flat disallowance.

Boats can be deductible where they are not entertainment facilities. A boat used as genuine transportation between business locations, a boat that is inventory in a dealership, a boat chartered out as a trade or business, or a working vessel used in a commercial operation are all outside the entertainment facility rule.

A charter operation is the structure most often attempted. It requires the boat to be genuinely held for the production of income, actively marketed, and operated as a business rather than as personal use with occasional charters.

Where a charter operation is real, the passive activity rules under IRC Sec. 469 then apply, and the hobby loss rules under IRC Sec. 183 apply if the activity lacks a profit motive. Charter operations that lose money every year while the owner uses the boat personally are the fact pattern the IRS looks for.

Aircraft Are Deductible With Real Business Use

Aircraft are not entertainment facilities when used for transportation. Business travel by private aircraft is deductible in the same way any business transportation is.

The obstacles are three: substantiation, personal use allocation, and the passive activity rules.

IRC Sec. 274(d) requires strict substantiation for listed property, and aircraft are listed property under IRC Sec. 280F(d)(4). Records must establish the amount, time, place, and business purpose of each flight. A flight log with passenger names, destinations, and business purpose is the minimum.

Personal use is not deductible and must be allocated out. Where an employee or owner uses the aircraft for personal travel, the value is generally income to them under the SIFL rules or must be reimbursed.

Under IRC Sec. 274(e)(2), deductions for entertainment flights provided to specified individuals are limited to the amount included in that person's income, which for a heavily used aircraft can disallow a substantial portion of the cost.

The Bonus Depreciation Question

Aircraft used more than 50% for qualified business use are eligible for bonus depreciation under IRC Sec. 168(k) and generally use a five or seven year recovery period depending on use.

This is the source of the promotion. A $4,000,000 aircraft placed in service with qualifying business use can produce a $4,000,000 first-year deduction.

The 50% qualified business use test under IRC Sec. 280F is where most fail. Qualified business use excludes leasing to a 5% owner or related party, and certain use by employees is treated carefully. Falling below 50% requires the taxpayer to switch to the alternative depreciation system and recapture prior accelerated depreciation.

That recapture is the expensive failure mode. An owner who took $4,000,000 in year one and drops below 50% business use in year three recaptures the excess depreciation as ordinary income.

The Passive Activity Trap

Many aircraft are held in a separate entity that leases the aircraft to the owner's operating business or to a management company.

Leasing is a rental activity under IRC Sec. 469. Under Treasury Regulation Sec. 1.469-1T(e)(3)(ii), the average period of customer use test matters: where the average use period is seven days or less, or thirty days or less with significant services, the activity is not a rental.

Where the aircraft entity is a rental activity and the owner does not materially participate, the loss is passive and suspends. A $4,000,000 bonus depreciation deduction sitting suspended is worth nothing currently.

The self-rental rules under Treasury Regulation Sec. 1.469-2(f)(6) compound this, since net rental income from property leased to a business you materially participate in is recharacterized as non-passive while a net loss generally is not.

A grouping election under Treasury Regulation Sec. 1.469-4 is frequently the answer, but it must be evaluated and made properly. This is the single most common failure in aircraft structures, and it is entirely avoidable with planning before acquisition.

What Actually Survives Examination

A flight log maintained contemporaneously, recording date, aircraft, departure and destination, passengers, and specific business purpose for each leg.

A defensible allocation between business and personal use, with personal use either reimbursed at appropriate rates or included in income.

An entity structure that addresses the passive activity rules deliberately, with any grouping election made on a timely filed return.

Genuine business use that a reasonable person would recognize. An aircraft flown 90 hours a year, mostly to vacation destinations, with a business purpose noted for each flight, is not going to hold up regardless of the log quality.

Federal Aviation Administration compliance is a separate but related issue. Certain leasing structures raise operational control questions under Part 91 that can create regulatory exposure independent of the tax result, and the structure should be reviewed by aviation counsel as well as tax counsel.

Worked Example: Aircraft Done Correctly

A business owner with operations in four states acquires a $3,200,000 aircraft. Prior year travel included 92 commercial trips to those locations.

The aircraft is held in an LLC that leases it to the operating company under a written agreement at market rates. The owner makes a grouping election under Treasury Regulation Sec. 1.469-4 treating the aircraft leasing activity and the operating business as a single activity, filed with a timely return.

Flight logs record 118 hours in year one, of which 104 hours are documented business trips with passenger names and specific business purposes. The 14 personal hours are valued under SIFL and included in the owner's income.

Qualified business use is 88%, well above the 50% threshold under IRC Sec. 280F, so bonus depreciation applies.

The $3,200,000 deduction offsets operating business income because the grouping election makes the loss non-passive.

The structure works because the business use is real, the documentation is contemporaneous, the personal use is handled, and the passive activity question was addressed before acquisition rather than after.

Frequently Asked Questions

Can I deduct a boat used to entertain clients?

No. IRC Sec. 274(a)(1)(B) disallows any deduction for a facility used in connection with entertainment, amusement, or recreation, and a boat is the textbook example. The disallowance applies regardless of how much business was conducted aboard.

Is there any way to deduct a boat?

Only where it is not an entertainment facility: genuine transportation between business locations, dealer inventory, a real charter operation, or a working commercial vessel. A charter operation must be actively marketed and operated as a business, and it faces the hobby loss rules under IRC Sec. 183.

Can I take bonus depreciation on an aircraft?

Yes, if qualified business use exceeds 50% under IRC Sec. 280F. Falling below 50% in a later year requires switching to the alternative depreciation system and recapturing prior accelerated depreciation as ordinary income, which is the expensive failure mode.

Why is my aircraft deduction suspended?

Most likely the passive activity rules. Aircraft held in a separate leasing entity are often a rental activity under IRC Sec. 469, and without material participation the loss suspends. A grouping election under Treas. Reg. Sec. 1.469-4 is usually the answer and must be made on a timely return.

What documentation do I need for aircraft?

Contemporaneous flight logs recording date, aircraft, departure and destination, passengers, and specific business purpose for each leg, as required for listed property under IRC Sec. 274(d). Personal use must be allocated out and either reimbursed or included in income.

Can I Write Off a Boat or Airplane for My Business?