@kleo123321 ,
FBAR looks at and considers ONLY "liquid" financial accounts -- so bank accounts is the main interest --- if the total amounts ( of all accounts) in any financial institution at anytime during the year equaled or exceeded US$10,000 then you should file the FBAR. The form is filed electronically and is applicable to all "US persons". Actually the limit is US$10,000 on the last day of the year or US$ 15,000 at anytime. But to me the safest is to report if at anytime US$10,000 or more. There is no tax on this but if you knowingly do not file the form , the penalties is very severe.
Ownership of an account --- either you own and operate or are a nominee, have no interest etc -- like when one has an account along with one's parents but really do not operate the account etc.
Financial institution general implies banks, credit unions etc -- could even be a brokerage where cash sits ready for investment.
In your particular case , based on your post -- you need to report the bank accounts but not the credit cards ( because it would be loan if you took advantage of it). I would also suggest that there is no harm in also reporting the accounts owned and operated by your spouse and child ( if he/she is an adult ).
There is also another requirement --FATCA -- this requires reporting of specified financial assets ( TurboTax will prepare this for you when you prepare your return ) - stocks, bonds , notes and similar things come under this ( but not real-estate ) and here the threshold is higher and depends on your filing status and tax home ( USA or abroad). Again TurboTax will walk you through this if you tell it that you have foreign assets etc.
Do you need more help on this ?
