LIC-6.18 - Apportionment for Passenger Carriers - for tax years beginning on or before 12/31/2022

Administrative Rules Adopted by Bureaus Pursuant to Rule Making Authority (ARB)
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Administrative Rules Adopted by Revenue Bureau Pursuant to Rule-Making Authority

Note: This rule sunsets 12/31/2022 and does not apply to tax years beginning on or after 1/1/2023. See LIC-6.28 for later tax years.

The percentage of net income apportioned to the City or County for air and ground passenger transportation (airline, bus, and rail) who do business within the City or County may be determined using either of the following methods:

a. Departure Method. The following formula applies for this method:

# Local Departures / # Departures Everywhere = Apportionment %

In the airline industry, different types of aircraft differentiate revenues (as with jumbo jets versus smaller planes). Airlines may determine apportionable revenues in the following manner:

Type 1 plane gross revenues X % of local departures of Type 1 planes +

Type 2 plane gross revenues X % of local departures of Type 2 planes, etc.

Example: Airline ZED has 100 departures locally during the year. Airline ZED has 5,000 departures during the year everywhere. This equates to an apportionment of 2%. However, Airline ZED receives a large portion of its income from flying jumbo jets out of Los Angeles and Seattle. Airline ZED has 2,000 departures everywhere which represent jumbo jets--only 10 of these jumbo jet departures are local departures. Therefore, Airline ZED may make the following apportionment determination: 

-Jumbo JetRegular JetTotal
Everywhere Departures200030005000
Local Departures1090100
Local Percentage.5% (1/2 of 1%)3%2 % (average)
Gross Revenues10,000,0005,000,00015,000,000
Local Revenues50,000150,000200,000

200,000/15,000,000=Redetermined Apportionment: 1.3333%

b. Ticket Sales Method. Gross ticket sales sold for departures from City or County (including station sales, ticket agent sales, internet sales, etc.) is included in the numerator of the apportionment fraction as City or County income. Other City or County incomes from other activities must also be included in the numerator of the apportionment fraction. The denominator of the apportionment fraction is gross income everywhere. Gross income everywhere shall be defined as gross ticket sales everywhere plus all taxable incomes from all other activities.

Portland City Code Section 7.02.610 D.2.
Multnomah County Code Section 12.610 D.2.


Originally adopted as Bureau of Licenses Administrative Rule 610.93-8 November 23, 1993.

Submitted for inclusion in PPD September 17, 2002.

Revised administrative rule adopted by Director of Revenue Bureau January 25, 2011 for tax years beginning on or after January 1, 2011.

Amended by Director of Revenue Division March 6, 2023.

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