Many countries around the world have signed an agreement with the United States of America, called an Intergovernmental Agreement (IGA). This agreement derives from the U.S. tax legislation FATCA (Foreign Account Tax Compliance Act). Under the agreement/law banks/financial institutions are required to identify and report the aggregated amounts on accounts held by U.S. citizens and residents to the U.S. Internal Revenue Service (IRS).

Under the U.S. Foreign Account Tax Compliance Act (FATCA) and Intergovernmental Agreements (IGAs) Caye International Bank has registered itself with the IRS. The official Global Intermediary Identification Number (GIIN) of Caye International Bank approved by the IRS is: U8KTNL.99999.SL.084 with corresponding bank SWIFT Code / BIC of: CAYEBZBZ.