Thanks David! I just concern because the cost basis could not be tracked by IRS from W2, IRS might treat the cost basis of this RSU as zero, so it may not be appropriate to adjust cost basis in turbotax to the real value by myself, otherwise I am afraid the RSU may audit me. I think the right way is to use foreign income credit to deduct the double tax, although I could not use it due to no foreign income in 2019, really a puzzle.
