There´s no universal rule about Fatca. Since each country has it own agreement with the US. And threfore FATCA rules are country specific. I´ve searched the italian-US agreement:
https://www.treasury.gov/resource-center...0-2014.pdf
"III. New Individual Accounts. The following rules and procedures apply for identifying
U.S. Reportable Accounts among accounts held by individuals and opened on or after July 1,
2014 (“New Individual Accounts”).
A. Accounts Not Required to Be Reviewed, Identified or Reported. Unless the
Reporting Italian Financial Institution elects otherwise where the implementing rules in
Italy provide for such an election:
1. A New Individual Account that is a Depository Account is not required to
be reviewed, identified, or reported as a U.S. Reportable Account unless the
account balance exceeds $50,000 at the end of any calendar year or other
appropriate reporting period.
2. A New Individual Account that is a Cash Value Insurance Contract is not
required to be reviewed, identified, or reported as a U.S. Reportable Account
unless the Cash Value exceeds $50,000 at the end of any calendar year or other
appropriate reporting period. "
Supposedly only accounts above $50,000 are reported. But the treaty allows "the Reporting Italian Financial Institution elects otherwise". This means any bank can decide wether they should or not report you regardless of the value of your account.
I have no doubts US banks will be more strict in following this regulation than some litle regional bank. What I had heard and read is all accounts are reported regardless of the value. I´ve look into this because of EU regulations. Not FATCA.
Companies are also subject to FATCA. Reporting accounts prior to the agreement is limited to above 250k. But with companies I didn´t found any value for new accounts. I didn´t search more into this. But at first sight all accounts are reported.
About agregation accounts:
Account Balance Aggregation and Currency Translation Rules
1. Aggregation of Individual Accounts. For purposes of determining the
aggregate balance or value of accounts held by an individual, a Reporting Italian
Financial Institution shall be required to aggregate all accounts maintained by the
Reporting Italian Financial Institution, or Related Entities, but only to the extent
that the Reporting Italian Financial Institution’s computerized systems link the
accounts by reference to a data element such as client number or taxpayer
identification number, and allow account balances to be aggregated. Each holder
of a jointly held account shall be attributed the entire balance or value of the
jointly held account for purposes of applying the aggregation requirements
described in this paragraph.
2. Aggregation of Entity Accounts. For purposes of determining the
aggregate balance or value of accounts held by an Entity, a Reporting Italian
Financial Institution shall be required to take into account all accounts held by
Entities that are maintained by the Reporting Italian Financial Institution, or
Related Entities, to the extent that the Reporting Italian Financial Institution’s
computerized systems link the accounts by reference to a data element such as
client number or taxpayer identification number and allow account balances to be
aggregated.
3. Special Aggregation Rule Applicable to Relationship Managers. For
purposes of determining the aggregate balance or value of accounts held by a
person to determine whether an account is a High Value Account, a Reporting
Italian Financial Institution shall also be required, in the case of any accounts that
a relationship manager knows or has reason to know are directly or indirectly
owned, controlled, or established (other than in a fiduciary capacity) by the same
person, to aggregate all such accounts.
4. Currency Translation Rule. For purposes of determining the balance or
value of accounts denominated in a currency other than the U.S. dollar, a
Reporting Italian Financial Institution must convert the dollar threshold amounts
described in this Annex I into such currency using a published spot rate
determined as of the last day of the calendar year preceding the year in which the
Reporting Italian Financial Institution is determining the balance or value.
Italy detailed this agreement into law:
https://www.oecd.org/tax/automatic-excha...ation-.pdf
In this law there are more exceptions. I believe saving accounts are one of them. Or accounts created for the purposes of buying real estate.
Here´s the list of countries with FATCA agreements.
https://www.treasury.gov/resource-center...FATCA.aspx
There´s a lot of tax exempt senior retirement schemes in Europe. Your uncle probably should use one of them. In some cases no taxation in both countries.
Not legal advice or tax or any other type of advice. At best this should be considered personal opinions.