Guam withholding tax tables

In our continued effort to strengthen the security of our system and protect your tax information, DRT has changed the way you login to GuamTax. Re-registration is required to get your new login credentials.

If you have any questions, please visit our FAQ section.

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Business E-Services

The Latest

Read the most recent Public Notices posted by the Guam Department of Revenue and Taxation.

Business Privilege Tax Returns

All Business Privilege Tax Returns must be filed electronically

For more information, see DRT's Media Release .

W-2GU and 1099 Information Returns

New electronic filing requirements for Tax Year 2023 Forms W-2GU and 1099

Filers who have 10 or more information returns (W-2GU and 1099) must file them electronically pursuant to Section 6011(e)(2)(a) of the Guam Territorial Income Tax Code and associated regulations on this site. For more information, see DRT Tax Alert 23-01-ITAPB & Additional Information Regarding E-Filing Requirement.

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Guam Passport Office:

*REVISED* pursuant to PL No. 36-81, effective July 1, 2022 � retroactive to January 1, 2022:

Date: June 25, 2022

DRT announces a revised GRT-1 tax form to claim the LIMITED EXEMPTION FOR CERTAIN SMALL BUSINESS (LECSB)

Please click on the following links for more information:

How do I file for an income tax extension?

Click here for extension information (requires MyGuamTax.com registration/login).

What is my RPT balance due?

Click here to retrieve your Real Property Tax account balance.

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