If you do not give your SSN or ITIN to the payer of interest, you may have to pay a penalty.
You should keep a list showing sources and investment income amounts you receive during the year.
The NIIT is a 3.8% tax on the lesser of your net investment income or the amount of your modified adjusted gross income (MAGI) that is over a threshold amount based on your filing status.
Incorporates PTEs 81-6 and 82-63 and extends PTE 81-6 to certain foreign banks and broker-dealers.
Also permits certain additional forms of collateral.
Interest, dividends, and other investment income you receive as a beneficiary of an estate or trust is generally taxable income.