Use Form 4768 to: Apply for an automatic 6-month extension of time to file Form 706, Form 706-A, Form 706-NA, or Form 706-QDT. Apply for a discretionary (additional) extension of time to file Form 706 (Part II of Form 4768). Apply for a discretionary (for cause) extension of time to file Form 706. Apply for an extension of time to pay estate or generation-skipping transfer tax under section 6161 (Part III of Form 4768). Current Revision Form 4768 PDF Instructions for Form 4768 (Print Version PDF) Recent Developments IRS approves temporary use of e-signatures for certain forms -- 28-AUG-2020 Taxpayer Relief for Certain Tax-Related Deadlines Due To Coronavirus Pandemic -- 14-APR-2020 Change to Filing Address and Revised Form 4768 Available -- 03-OCT-2019 Other Items You May Find Useful All Form 4768 Revisions Other Current Products Related About Form 706, United States Estate (and Generation-Skipping Transfer) Tax Return About Form 706-A, United States Additional Estate Tax Return About Form 706-NA, United States Estate (and Generation-Skipping Transfer) Tax Return About Form 706-QDT, U.S. Estate Tax Return for Qualified Domestic Trusts