Answer:
a)$1,842,000
b) $808,500 each
c) $$1,842,000
Step-by-step explanation:
Worth of Gift made = $16200000
Assuming a Flat rate of 40%
Determine federal gift tax liability 
a) When Election to split gift is not made 
Taxable gift = $162,000,000 - annual exclusion
 = 162,000,000 - 15,000 
 = $16,185,000 
Determine the Gift tax = [ 345800 + ( 16,185,000 - 1,000,000 ) 40% ] 
 = $6419800 
 applying values gotten from computing tax table ( Appendix A )
Given that the max credit allowed for 2020 = $4577800
hence Gift tax due = $1,842,000 ( 6419800 - 4577800 )
b) If election to split is made i.e. section 25I3 is elected 
Gift tax due = $8,100,000 - $15,000 = $808,500 each ( Greg and Lei
i.e. For Greg and Lei 
c) Tax savings made 
Tax savings =$1,842,000 ($1,842,000 -$0)