My mother bought 100 shares of a mutual fund for $1000 ($10 per share). contributed nothing. I am listed as a joint tenant (JT TEN) (I assume with right of survivorship, at least that was the intent). My mother is considered the principal owner of the fund, i.e., it is in her social security number and she pays the taxes on the dividends.
when she dies, do I get stepped up value for my new cost basis or her original cost?
tks all.