UK Self Assessment A-Z information

Homepage of the US Taxation authority

Information regarding the filing a report of US Foreign Bank and Financial Accounts (FBAR) on FinCen form 114.

an IRS approved format for filing US prior year tax returns and FinCen 114 (FBAR) forms for tax payers who have not filed in recent years.

US FinCen electronic filing requirements.
We can complete FinCen 114 (FBAR) forms for you, from information you send us, and we return the completed forms back for you to electronically file. You then receive an acknowledgement email from the FinCen authority within a few days to confirm the FBARs have been successfully submitted. We are not currently an approved third-party preparer, so we cannot file the forms for you electronically.

Alternatively, you can complete and file FinCen form 114 for FBARs yourself ;

US Form 8938 instructions

IRS publication 54 deals with taxation of US citizens overseas