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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Login here to:
- E-File GRT
- E-File SWICA
- E-File W-1
- E-File W-3/W-2GU
- E-File 1096/1099
- Renew Business License
- Vehicle Safety Inspection Companies: submit Vehicle Inspection Reports.
- Vehicle Insurance Companies & Agents: submit Vehicle Insurance Policies.
Read the most recent Public Notices posted by the Guam Department of Revenue and Taxation.
- DRT MEMO: Post Typhoon Mawar Service Update No. 3 June 6, 2023
- Real Estate Directory as of 5/19/2023 May 30, 2023
- 2023 ABC Board Meeting Submission Timeline May 17, 2023
- DRT MEMO: Tax Preparer's Exam Press Release May 12, 2023
- 2023 Updated Non-Profit Listing May 8, 2023
- 2023 ABC Board Meetings Agendas & Minutes April 20, 2023
- Property & Casualty Continuing Education Courses April 14, 2023
- Cannabis Control Board February 20, 2023 Board Meeting April 13, 2023
- Cannabis Control Board January 23, 2023 Board Meeting April 13, 2023
- Cannabis Control Board December 12, 2022 Board Meeting April 13, 2023
- Real Estate Commission March 21, 2023 Minutes April 4, 2023
- Banking & Insurance Board Mar. 16, 2023 Meeting Minutes April 4, 2023
- Passport Fees Chart January 23, 2023
- DRT MEMO: Tax Filing Season Begins January 23, 2023 January 19, 2023
- Guam Passport Office Notice: Delivery Fee Increase January 19, 2023
- 2022 1040 January 18, 2023
- 2022 1040-SR January 18, 2023