Below are several helpful links which include information and pdf forms for various compliance requirements. While not an exhaustive list, most of these sites provide follow-on links for additional information if necessary.
IRS website (pay taxes owed here)
FBAR (Foreign Bank Account Reports) – FinCEN Form 114
IRS – FATCA: Summary of Key FATCA Provisions
IRS FATCA (Foreign Account Tax Compliance Act) – About Form 8938
Form 5471 – Information Return for US Persons with Respect to Certain Foreign Corporations
Form 3520 – Annual Return to Report Transactions with Foreign Trusts and Receipt of Certain Foreign Gifts
IRS – Average Foreign Exchange rates
Historical Foreign Exchange Rates
Focus Information – providing comprehensive relocation information for persons relocating to the UK
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