In a recent case that is a cautionary tale to preparers of federal estate tax returns, the Tax Court held that the IRS was permitted to examine the estate tax return of the first spouse to die in determining the deceased spousal unused exclusion amount (DSUE) available to the estate of the surviving spouse. The result was an increase to the federal estate tax in the estate of the second spouse.
A husband died in 2012 and his estate reported his DSUE on form 706, the federal estate tax return, and elected portability of the DSUE to the surviving spouse. The IRS sent the husband’s estate a federal estate tax closing letter reporting the return was accepted as filed. When the wife died in 2013, her estate claimed the DSUE reported by the husband’s estate. As part of the examination of the wife’s federal estate tax return, the IRS also examined the 706 filed by the husband’s estate. Without determining a deficiency against the husband’s estate, the IRS reduced the amount of the husband’s DSUE by the amount of taxable gifts given by husband during his life. This reduction in the DSUE reduced the total exclusion available in the wife’s estate and resulted in an increase of the estate tax.
Several holdings by the court are noteworthy: