This article was originally published on January 30, 2018 and has been updated.
More companies are allowing their top employees and owners to use noncommercial aircraft for business travel (and some personal travel). While permissible, employers must be careful to properly allocate the business vs. personal use of any noncommercial aircraft in order to properly calculate the imputed income to the employee or partner. The noncommercial flight rules also apply limitations on an employer’s tax deductions for such travel. Under current law, employer deductions for aircraft costs attributable to flights for business entertainment and certain personal non-entertainment employee flights can be significantly reduced or eliminated.
The IRS has recently announced additional scrutiny on this topic and says it will be a focal point for IRS exams. Employers should take care in determining the proper tax treatment of noncommercial flights and report the use appropriately.
Imputed income for personal flights
Reg. section 1.61-21(g), and various Revenue Rulings, serve as the primary authoritative guidance for determining the imputed compensation income for employees using employer-provided aircraft (including jets, helicopters, etc.). The amount computed and includable in an employee’s income for personal use of an employer-provided aircraft is based on either the fair market value (FMV) of the transportation provided (using FMV of a similar charter rate) or the Standard Industry Fare Level (SIFL) rate. Each flight’s value is imputed separately (i.e., a round trip flight has, at a minimum, two flights with two separate imputed income amounts) and is determined on a passenger-by-passenger basis. If using the SIFL formula to impute income, the SIFL cents-per-mile rate is multiplied by an aircraft multiple (which are based on the maximum allowable takeoff weight of the aircraft) and a terminal charge is added to determine the total amount. The SIFL cents-per-mile rates and the terminal charge are provided by the Department of Transportation and updated semi-annually. These valuation principles apply to both domestic and international flights.
Complexities arise when a trip on employer-provided aircraft is for mixed use (i.e., when the trip has both personal and business elements). For most companies and partnerships, if the main reason for the travel is a business trip, but the business travelers invite guests, the employees (or partners) traveling to a business meeting have a business purpose, but the guests do not. Thus, in many instances, the value of the guests’ travel is imputed as compensation to the employee that invited the guest.
Whether a flight is “primarily” for business purposes or “primarily” for personal purposes is a facts-and-circumstances determination.