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