Emily made taxable gifts of $43,000 in 2023.

Emilys prior gifts are as follows:

Amount of Taxable Gifts made in 1974: $ 500,000 (this was before the unified credit was introduced)

1998 $1,000,000

What is Emilys current year gift tax liability before considering the unified credit? What is the amount of the remaining 2023 unified credit available to offset the 2023 gift tax liability? What is the total tax payable in 2023? Please confirm my work below is correct...

Taxable Gift-2023$43,000Add: Taxable Gift -1974$500,000Add: Taxable Gift -1998$1,000,000Taxable transfers to date$1,543,000Tentative 2023 tax on taxable transfers to date$563,000345,800 + (543k x 40%)Less: Gift tax on 1974 gift at current rates$0Less: Gift tax on 1974 and1998 gifts at current rates-$545,800Tentative tax on 2023 gift$17,200Less: Remaining unified transfer tax credit:Total credit available for 2023$5,113,800Less: Unified transfer credit used in 1974$0Less: Unified transfer credit used in 1998-$202,050$4,911,750Gift tax due on 2023 gift$0