When to file Generally, the estate tax return is due nine months after the date of death. A six month extension is available if requested prior to the due date and the estimated correct amount of tax is paid before the due date. The gift tax return is due on April 15th following the year in which the gift is made. For other forms in the Form 706 series, and for Forms 8892 and 8855, see the related instructions for due date information. Where to file To pay Estate and Gift tax online, use the secure and convenient Electronic Federal Tax Payment System. If you are using a private delivery service to file your return, use the Submission Processing Center street address. Form Number Where to File after July 1, 2019 706 Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 706 (supplemental or amended) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 Schedule R-1 (Form 706) Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 Schedule R-1 (supplemental or amended) (Form 706) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706-A Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 706-A (supplemental or amended) Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 706-CE Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706-CE (supplemental or amended) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706-D (historical form only) Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 706-GS(D) Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 706-GS(D) (supplemental or amended) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706 GS(D-1) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706 GS(D-1) (supplemental or amended) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706-GS(T) Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 706-GS(T) (supplemental or amended) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706-NA Transfer Certificate Requests Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706-NA Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 706-NA (supplemental or amended) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 706-QDT Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 706-QDT (bond, letter of credit, or release request) On the Deceased person page, see the Estate tax based on value of assets section and the bullet for an estate with an IRC section 2056A qualified domestic trust election. 706-QDT (supplemental or amended) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 709 Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 709 (supplemental or amended) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 843 (Form 706 and Form 709 claims only; for other kinds of tax, see instructions) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 1127 (Form 709 only) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 4768 Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 4810 for Form 709 gift tax only Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 5495 (For Form 709 gift tax discharge requests or when an estate tax return, Form 706, has been filed) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 8892 Department of the Treasury Internal Revenue Service Center Kansas City, MO 64999 8939 (historical form only) Department of the Treasury Internal Revenue Service Stop 824G 7940 Kentucky Drive Florence, KY 41042-2915 8971 Department of the Treasury Internal Revenue Service Stop 8307F 7940 Kentucky Drive Florence, KY 41042-2915 Form 8855 Mailed January 1, 2019, and later IF you are located in ... THEN send the election to the .. Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin Department of Treasury Internal Revenue Service Center Kansas City, MO 64999 Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Hawaii, Idaho, Iowa, Kansas, Louisiana, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming A foreign country or a U.S. possession Department of Treasury Internal Revenue Service Center Ogden, UT 84201 Contact information For questions about return accounts and extensions (no tax law questions), call: 866-699-4083. For lien discharge information, see Publication 4235, Collection Advisory Offices Contact Information PDF. For information on estate tax closing letters, see When can I expect the Estate Tax Closing Letter? at Frequently Asked Questions on Estate Taxes. Many general estate and gift tax law questions can still be answered by calling: 800-829-1040. You may also find many answers to your questions by visiting Forms and Publications. Caution: Do not submit tax related questions below. If you have a tax question that was not answered here or by checking Frequently Asked Questions, please call our toll-free tax assistance line at 800-829-1040 for individual tax questions or 800-829-4933 for business tax questions. We will not respond to tax related inquiries submitted on this page. If you have suggestions or comments (or suggested FAQs) for the Estate and Gift Tax webpage, please contact us by emailing sbse.estate.gift@irs.gov. We will not be able to respond to your email, but will consider it when making improvements or additions to this site. Related Estate and gift taxes Estate tax Frequently asked questions on estate taxes Information for executors Gift tax Frequently asked questions on gift taxes Filing estate and gift tax returns Transcripts in lieu of estate tax closing letters Frequently asked questions on the Estate Tax Closing Letter Penalties What's new — Estate and gift tax Related international topics Estate tax for nonresidents not citizens of the United States Frequently asked questions on estate taxes for nonresidents not citizens of the United States Transfer certificate filing requirements for the estates of nonresidents not citizens of the United States Transfer certificate filing requirements for the estates of nonresident citizens of the United States Gift tax for nonresidents not citizens of the United States Estate & gift tax treaties (international) Publications Forms and publications: Estate and gift tax About Publication 559, Survivors, Executors and Administrators