In 2018, which of the following is Not true

The estate tax basic exclusion amount is $11,180,000

The executor may elect to use modified carryover basis for assets in an estate

The highest marginal tax rate for the estate/gift tax is 40%

A deceased spouse 's unused exclusion amount is portable. That is, if it is not used by the first spouse to die, the surviving spouse may use the unused exclusion, sheltering up to 11,180,000 at the second death