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You are using an Official Government of Guam System, which may be used only for authorized purposes. Unauthorized modification of any information stored on this system may result in criminal prosecution. The Government of Guam may monitor and audit the usage of this system, and all persons are hereby notified that the use of this system constitutes consent to such monitoring and auditing. Unauthorized attempts to upload information and/or change information on this web site are strictly prohibited and are subject to prosecution under the Computer Fraud and Abuse Act of 1986, Title 18 U.S.C. Sec. 1001 and 1030, and other criminal and civil laws as applicable under the Territory of Guam.
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If you don't already have a MyGuamTax online account, registration is easy. Register now and start using MyGuamTax today.

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File 1040EZ

2017 1040EZ E-Filing
is here!

Pre-Register and Schedule an Appointment Online for Driver's License

Schedule an appointment for most Guam Driver's License and Guam ID services at

2018 Tax Season Opening

Guam's Department of Revenue and Taxation (GDRT) announces that the upcoming 2018 tax season will officially open on January 29, 2018.


How do I file for an extension?

You must register first to create your username and password. Just press the link below to register and get started.

Register Now!

Be aware that an extension of time to file your return does not grant you any extension of time to pay your Taxes.



Attention to All E-Filers who decide on making their tax payments in person (not electronically):

  • Please proceed to make payment to any Treasurer of Guam location, and
  • Provide two (2) copies of the e-filed returns.

As a reminder, Collections Branch at the Department of Revenue and Taxation will no longer accept payments on e-filed tax accounts.

Online Payments are back!

Our payment website is back online. Please visit and register now to be able to pay your real property tax, income tax, gross receipts tax, and several other tax obligations.

If you have any questions or need assistance, please contactthe PIN Admin at or at (671) 635-1809.

Online Vehicle Registration is back!

To take advantage of this service, please register if you are a new applicant or log-in with your existing MyGuamTax account.

If you have any questions please review the Renewal FAQ & Guide to Renewing Online pages or contact the PIN Admin at or at (671) 635-1809.

Filing Jurisdiction

Are you eligible to file with the Guam Department of Revenue and Taxation?

There are three tests you must meet to be eligible to file taxes with our department.

Find out if you meet the requirements for filing in Guam

  What is MyGuamTax?  

MyGuamTax is a subsidiary site of our parent site This site provides online services for individual (non-commercial) taxpayers.

Our online services allow you to conduct business with our department electronically over the Internet.

Get Started

To get started with e-filing, you need to register for a MyGuamTax user account. Registering for a user account allows you to access our secured online e-filing system, and store your data for later use.

 Register now

NOTE: If you have a GuamTax user account, you'll still need to register for a separate account on MyGuamTax.

Looking to file your GRTs?

MyGuamTax was built specifically for e-filing transactions for individual taxpayers. To perform commercial e-filing transactions, such as filing your GRTs or SWICA reports, please login to using your GuamTax user account.

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