Enter the decedent's date of death to calculate the general federal Form 706 filing deadline—nine months after the date of death.
The calculator also shows a potential six-month filing extension date if a timely Form 4768 extension applies.
This is a general federal deadline calculator. It does not determine whether Form 706 is required, portability relief eligibility, special disaster relief, payment extensions, section 6166 elections, or other case-specific rules.
IRS instructions generally require Form 706 to be filed within nine months after the decedent's date of death. If there is no numerically corresponding date in the ninth month, the due date is the last day of that month.
A Form 4768 request can generally provide an automatic six-month extension of time to file, but an extension to file does not automatically extend the time to pay estate tax.
Our Windows Form 706 software is $399, or combine Form 706 and Form 709 for $499.