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- E-File GRT
- E-File SWICA
- E-File W-1
- E-File W-3/W-2
- 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.
- Status of the 2017 1040,1040A & 1040EZ Tax Forms 02/20/2018
- File my 2017 1040EZ Income Tax Return 2/20/2018
- Filing Due Dates for Individuals, Corporation, Non-profit Orgs 02/16/2018
- Public Notice - Above-Step Recruitment for Management Analyst IV 01/31/2018
- Announcement No. LFT 18-01 - Increase in the Liquid Fuel Rate
- PUBLIC ANNOUNCEMENT 2018 Tax Season Opening
- New Filing Due Dates for forms W3SS, W2gu and 1099-Misc
- List of Acceptable Required Documents for Real ID
- 2017 Updated Non-Profit Listing
- 2017 Real Property Tax Final Assessment Roll
- 2017 Real Property Tax Preliminary Roll & Notice