[ludamad]

"50% rate... a premium can be added to shares if the deceased has a controlling interest in a company, potentially taking the top rate even higher"

I have to wonder, there's a huge incentive to instead have the person somehow give huge gifts to everyone before death, right?

[Denvercoder9]

Generally the gift tax rate is comparable to the estate tax rate to avoid this loophole. From a quick Google search it seems the gift tax in South Korea can be up to 50%.