MyGuamTax Login
Login here to file your 1040, Form 4868 or to renew your vehicle registration.
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.