These trusts where the trust creator keeps paying the tax, by the way, are known in the estate tax avoidance world as intentionally defective grantor trusts, IDGTs for short.
Often, ultrarich people have assets they're not terribly worried could lose value. They sell those to IDGTs too, but in a different way. First, they make a smallish (for them, that is) cash gift of about $10 million or so to the trust. Then, they sell assets having a value about ten times the amount of the gift to the trust, in exchange for the cash and a promissory note that bears interest at a super low rate. If the assets increase in value, the trust can buy more assets from the ultrarich person who created the trust, paying 100 percent of the purchase price with a promissory note.
Why, you might wonder, would an ultrarich person use this strategy rather than a zeroed-out GRAT? After all, the zeroed-out GRAT doesn't require the gift of any seed money, which can be wasted if the IDGT's assets decline in value. Here's why: If this other strategy, which avoidance planners call sale to an IDGT, works out, and it usually does, the trust winds up being what's known as a dynasty trust.
Once wealth finds its way into a dynasty trust, it escapes all wealth transfer tax (that is, estate and gift tax and a third tax known as the generation-skipping transfer tax, or GST) forever, even in perpetuity. How large can one of these dynasty trusts get? The Northern Trust Company provides an example: A dynasty trust starting at $11.7 million and growing at 5 percent per year would hold $454 million after 75 years. Consider how much a dynasty trust would hold if it started out at $100 million. Or $1 billion. Or if the trst lasted 175 years. Or if it grew at a yearly rate greater than 5 percent.
There is some good news on this front. Congress is finally considering legislation that will put a major crimp in billionaire tax avoidance planning. Legislation being considered by the House Ways and Means Committee would partially address IDGTs and valuations discounts. But it doesn't go nearly far enough. And it fails to rule out the worst abuse, zeroed-out GRATS. Dynasty trusts would still be around as well. There are fixes for GRATs and dynasty trusts, as well as improvement to the proposals to address IDGTs and valuation discounts. Those need to be incorporated into the legislation.
Four years ago, Trump economic adviser Gary Cohn derisively noted that "only morons pay estate tax." Derision aside, Cohn was correct that the estate tax essentially is a voluntary tax. We now have a chance to change that. Let's make it happen.