- 6 - only they, were responsible for filing the estate tax return when it became due. Section 6075 establishes that an estate tax return must be filed within 9 months after the decedent’s death, and section 6081 allows the Secretary of the Treasury to grant an extension of time to file for no more than 6 months. Messrs. Roisen and Helman received an extension to file the estate tax return until December 10, 2000. The return was not filed until September 19, 2001, however, and was, therefore, delinquent. Section 6651(a)(1) provides for an addition to tax in the event a taxpayer fails to file a timely return (determined with regard to any extension of time for filing), unless it is shown that such failure is due to reasonable cause and not due to willful neglect. The amount of the addition is equal to 5 percent of the amount required to be shown as tax on the delinquent return for each month or fraction thereof during which the return remains delinquent, up to a maximum addition of 25 percent for returns more than 4 months delinquent. II. Dispute The parties do not dispute the computation of the section 6651(a)(1) addition to tax (which respondent agrees must be recomputed, due to additional deductions allowed petitioner). They dispute only whether petitioner has avoided the addition to tax by showing that Messrs. Roisen and Helman’s delinquency inPage: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 NextLast modified: November 10, 2007