Upon a family member’s death, what taxes are due?

The following sums up the different taxes that may need to be paid upon death of a family member:

Federal Estate Tax. Amounts that are given to the surviving spouse or to a charity are typically exempt from estate tax. Normally, the estate tax is only owed on estates (which, after decreasing the amount by what is given to the spouse and charity, surpasses the unified credit exemption equivalent).
If you need to file an estate tax return, get in touch with the IRS to get a Form 706. Within nine months of the death, absent extension date, a federal estate tax return must be filed.
State Estate Taxes. These differ by state. States may enforce estate taxes that may be applied on top of the federal estate taxes while others may be utilized when federal estate taxes don’t. There are inheritance taxes that some states impose, which are on the individuals that receive the inheritance, rather than on the estate itself.
Income Taxes. The deceased’s state and federal income taxes are due for the year of death. Unless an extension is solicited, the taxes are due on the regular filing date of the coming year. For the year of the death, the deceased’s spouse may file a joint federal income tax return. If the spouse has a dependent child, he/she may file for an additional two years. It might be helpful to look at the IRS’s Publication 559, “Information for Survivors, Executors and Administrators”.