- 12 - 6651(a)(1) addition to tax, either in her testimony or on brief. Consequently, we have no basis on which to conclude that petitioner’s failure to timely file her return was due to reasonable cause and not due to willful neglect. We thus hold that petitioner is liable for the section 6651(a)(1) addition to tax as determined by respondent. To reflect the foregoing, Decision will be entered for respondent.Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13Last modified: March 27, 2008