They need to stop with this wealth tax proposal, it's not gong to go anywhere, it's just "blue veg" for the commie wing of the Democratic Party.
They just need to fix wealth transfer taxes, since we have a decades long system in place for already collecting those taxes. If you went with the 2000 (end of Clinton administration) exemption amount, indexed for inflation, each person would be able to exempt about $1 mil at death, or $2 mil for husband and wife. They should start with some modest rates at these levels, working their way up to the top rate of above the current $11.7 mil exemption.