The U.S. Congress
created the Territorial Government of Guam as a separate
taxing jurisdiction by enactment of the Organic Act of
Guam in 1950. Section 31 of the Act provides that the
income tax laws in force in the United States shall be
the income tax laws of Guam, substituting Guam for the
United States where necessary and omitting any inapplicable
or incompatible provisions. The U.S. Internal Revenue
Code with such changes constitutes the Guam Territorial
Income Tax Law.
There is the usual range of other types of local taxes,
such as, liquor, tobacco, gasoline, real property,
gross receipts, use, admissions, amusement, recreational
facilities, and hotel occupancy. However, there is
only one taxing authority in the Territory, the Government
of Guam. There are no separate municipal, county, school
district or improvement district taxes. Other than
admissions, use, and hotel occupancy taxes, there is
no general sales tax imposed directly on the consumer.
Foreign Sales Corporation (FSCs) which are licensed
to do business on Guam may qualify for certain exemptions
or rebates of income, real property, gross receipts
and use taxes. Information concerning this can be obtained
from the Director of Revenue and Taxation.
Personal and Corporate Income Tax
Bona fide residents of Guam are subject to special U.S. tax rules. In general, all individuals with income from Guam will file only one return—either to Guam or the United States.
If you are a bona fide resident of Guam during the entire tax year, file your return with Guam. This applies to all bona fide residents who are citizens, resident aliens, or nonresident aliens of the United States.
For more information, see Publication 570, Tax Guide for Individuals with Income from U.S. Possessions, or Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad.
corporations are subject to income tax on their income
from all sources. Other corporations doing business
on Guam incur income tax liabilities to Guam on all
Guam source income. Corporations not engaged in business
on Guam are liable to a 30% tax on certain types
of income from Guam sources. The tax rates for corporations
doing business on Guam can be found in Section 11
of the Guam Territorial Income Tax Law.
- Filing dates
of Income Tax Returns are as follows:
income tax returns for the calendar year are due
on or before April 15 of the following year. Individuals
reporting on a fiscal year basis must file their
returns on the 15th day of the fourth month following
the close of the fiscal year. When the due date for
doing any act for tax purposes -- filing a return,
paying taxes, etc. -- falls on a Saturday, Sunday,
or legal holiday, you may do that act on the next
b. Corporations are required to file
an income tax return for the calendar year on or before
March 15 of the following year. Corporations on a fiscal
year basis must file income tax return on the 15th
day of the third month following the close of the fiscal