- 13 - C. Conclusion Petitioner has failed to show that, on account of reasonable cause and not due to willful neglect, petitioner is excepted from liability for the section 6651(a)(1) addition to tax. IV. Conclusion Petitioner is liable for an addition to tax pursuant to section 6651(a)(1) for failure to file timely the Form 706. Decision will be entered under Rule 155. 2(...continued) available and later filing an amended return. See Estate of Vriniotis v. Commissioner, 79 T.C. 298, 311 (1982).Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13Last modified: November 10, 2007