MyGuamTax Login
Login here to file for 1040 or to renew your vehicle registration.
Notice to Apple computer/device Users: There have been reports of payment services on this site that are failing with the use of the SAFARI browser and Chrome iOS 14_*. We highly recommend that you use an alternate web browser.
If you would like to use any of our below business services, please login to GuamTax.com
- E-File GRT
- E-File SWICA
- E-File W-1
- E-File W-3/W-2GU
- Renew Business License
- Vehicle Safety Inspection Companies: submit Vehicle Inspection Reports.
- Vehicle Insurance Companies & Agents: submit Vehicle Insurance Policies.