Bell Rock glossary

Economic Substance Return

The annual report a relevant entity carrying on a relevant activity files to demonstrate it meets the economic substance test.

ES Return

Economic Substance

International Tax Co-operation (Economic Substance) Act (As Revised)

October 17, 2026

The economic substance return is the annual report filed by a relevant entity carrying on a relevant activity, setting out the information needed to demonstrate that it satisfies the economic substance test; including its income, expenditure, employees, premises, and the Core Income-Generating Activities conducted in the Cayman Islands. It is filed after, and is more detailed than, the economic substance notification, and is the entity's substantive evidence of compliance.

Related guidance

Economic Substance Notification · Relevant Activity

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