Welcome to the Cayman Islands AEOI Portal
The Cayman Islands AEOI Portal is an online application that will allow you to submit your returns to the Cayman Islands Tax Information Authority (TIA).
To access the Portal, please enter your username and password below. Note that the password is case sensitive.
If you require assistance, contact the Tax Information Authority at CaymanAEOIportal@gov.ky
Email address
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Password
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The recommended minimum computer requirements for using Cayman Islands AEOI Portal are:
- Please refer to the Cayman Islands AEOI Portal User Guide for information regarding web browser compatibility.
- For viewing your forms in PDF (and printing where signatures are required) you will need a PDF viewer, such as Adobe Acrobat Reader (version 8.0 or above).
- Forms can be exported as spreadsheets. For this you will need Microsoft Excel 2003 or above (the viewer application for Excel will also work).
- A connection to a printer so you can print out hard copies of forms.
- We also recommend that your screen resolution is at least 1024x768 or higher for optimal display.