I think you would have to include all assets, not just stocks. Why should Warren Buffet be subject to the tax, but not Donald Trump or Charles Koch?
Does anyone one know what the proposal being considered for removing the stepup in basis is?
@cpa? The way I see it, it could work two ways (and probably other ways as well):
1. Basis is adjusted to value at death, and estate pays taxes on the gain.
2. Basis remains the same at death.
In the second scenario an asset (family farm for example) could pass from generation to generation without paying taxes on the gain, so long as the asset is not sold. Still subject to death tax.
In the first scenario, an asset could be gifted before death - in which case there would be no capital gain taxes due. I guess in that case they would change the law on gifts of appreciated assets, and make the unrealized gain subject to tax at time of gift.