any tax liability as a second user to my brother's account?

Discussion in 'Retail Brokers' started by algotrader, Dec 10, 2008.

  1. HI,

    My brother, who is not a resident of USA, has added me as the second user of his account with IB. Since I am a resident of USA, I wonder if I have to assume any tax liability. i.e., do i need to report to IRS, or do i have to pay tax if there are gains in his account? many thanks.