Suppose a single parent wants to give $60K to an adult daughter (not a dependent). Normally, today, that would mean that $48K is subject to gift tax (less unified credit, ya-da-ya-da).
But suppose that instead, the parent gives $10K to each of 4 adult grandchildren and to another adult child, then each person decides to give $10k each to the daughter.
Ostensibly, none of the $60K is subject to gift tax because each person's gift is below their annual exclusion amount.
Is that legal?
It seems like "laundering". But how could the IRS prove it?