There are a number of tax forms you may need to file in your role as executor. EstateExec will help you determine which tax forms are applicable and their due dates, listing them in the Tasks tab.
An executor is responsible for filing final personal income tax returns for the decedent. These returns are due at the normal time (typically April 15 of the year following death), but only cover the preceding year until the day of death (after which, the estate becomes responsible and must submit its own tax returns). IRS publication 559 provides federal instructions for this, but it's generally easier just to use Intuit TurboTax® or a tax accountant.
If the decedent had not yet filed tax returns for the year previous to his or her death (imagine that he or she died on January 15), then you are responsible for filing those previous year returns as well, by their normal due dates.
If the decedent already filed his or her taxes for a previous year and a federal refund is due, you can collect it by filing an IRS Form 1310 for the appropriate year. Note that any state refunds are taxable by the federal government, and so could be a taxable event for the estate.
An estate must file a federal IRS Form 1041 every year it earns over a minimum amount (~$600) until you completely wind down the estate. If you file a federal form, you must file the corresponding state form.
If the estate contains real property, you must pay any relevant property taxes until the property is either sold or distributed to the heirs. Property taxes are often due in two installments during the calendar year; due dates vary widely by jurisdiction.
Note that paying property taxes in North Carolina from estate funds requires explicit authorization by the will or the court, since real property in NC is considered to immediately vest to the heirs (even though in reality the executor retains control throughout much of the settlement process).
As mentioned above, income from a decedent's living trust must be reported on the decedent's annual personal income tax return, up until the point of death. After death, income from such a trust starts accruing to the benefit of the trust beneficiaries, and the trust must report any income it distributes via Federal Schedule K-1s, which must be mailed by March 31 of the year following the decedent's death (and every year thereafter that the trust distributes income). Any income not distributed in a given year must be handled via the trust's own federal (Form 1041) and state tax filings. Of course, managing a trust is the responsibility of the trust trustee, not the estate executor (see Trusts).
If you are dealing with a large estate, you have 9 months from the time of death to submit a federal Form 706. This form is required, for example, if the gross value of an estate whose decedent died in 2019 exceeds $11.4M (see Sample Estate Task: Submit Form 706 for your particular estate requirements). Note that this filing limit differs from the actual estate tax exemption amount, which is calculated on net value in any case. Just because you have to file this form does not mean the estate will owe any taxes (for example, taxes typically start on net values of $11.2M in 2018, $11.4M in 2019, $11.58M in 2020). A 6-month extension is available if requested prior to the due date and the estimated correct amount of tax is paid before the due date.
If you must file a federal Form 706, you must also file IRS Form 8971 identifying heirs, the inherited property, and its valuation. This additional form must be delivered by the earlier of 30 days after the estate tax return is filed, or 30 days after the estate tax return was due to be filed (if you missed the 706 deadline).
If the estate does owe federal estate tax, note that you have the option to establish an Alternate Valuation Date, which which basically allows the executor to define the value as of 6 months after death (if doing so would reduce taxes owed), as opposed to the value on the date of death. You must make this election within one year, and it is irrevocable. See Federal Statute 26 USCS § 2032.
You may also have to file a state estate tax form if the decedent lived in a state with its own estate tax (in 2021: CT, HI, IL, MA, MD, ME, MN, NY, OR, RI, VT, WA, and WDC). If you are using EstateExec, the Tasks tab will include the relevant information.
If you must file a federal Form 706, it's also a good idea to request an Estate Tax Closing Letter from the IRS (see Tax Closing Letter Request for details), and it may be required if the state also imposes estate taxes. You must wait at least 6 months after filing Form 706, and then call (866) 699-4083 or fax (855) 386-5127. Alternatively, IRS Notice 2017-12 explains that an account transcript can now be used in place of a Closing Letter. Submit IRS Form 4506-T to request such a transcript (see IRS Transcript Request for instructions).
EstateExec will help you organize all these tasks in accordance with estate value and state of residence. Optionally see Wikipedia on Estate Taxes for an interesting summary.
Unlike an estate tax, which is a tax levied on the overall estate, an inheritance tax is a tax levied on amounts distributed to individual heirs. There is no federal inheritance tax, but a few states do enforce their own inheritance taxes (in accordance with the decedent's state of residence, not the address of the heir): EstateExec will let you know if this is applicable for your estate. Inheritance taxes typically vary by the relationship of the heir (e.g., child, spouse) with the decedent, and it is generally the estate that must pay the tax. If applicable, the inheritance tax form must be filed within 6-18 months, depending on the state.
While not required, you can submit IRS Form 5495 to shorten the period during which you may be personally liable for underpaid federal income, gift, or estate taxes.
Normally the IRS has 3 years to after the submission of any tax return to assess it and request payment of any determined deficiency. Form 5495 shortens this period to 9 months (6 months if you are a professional fiduciary). You are not required to wait for the expiration of this period before making distributions; just be aware that you could be personally required to make up for any underpayments if the estate does not have enough funds to pay, due to your earlier distributions.
You can only apply Form 5495 to tax forms you have submitted, not future ones, so you can wait until all tax forms have been submitted before filing Form 5495, or you can submit additional copies of Form 5495 over time as you file new tax forms.