- 11 - property, the taxpayer generally cannot claim a deduction for a casualty loss relating to that property. Blanche v. Commissioner, T.C. Memo. 2001-63; see Wayno v. Commissioner, T.C. Memo. 1992-53, affd. without published opinion 12 F.3d 1111 (9th Cir. 1993). In our discussion regarding the mortgage interest deduction, we held that petitioner had no legal or equitable ownership interest in the Bronx Boulevard house during 2003 when the fire loss occurred. In addition, in order to determine entitlement to a casualty loss deduction, a taxpayer’s basis in the damaged or destroyed property must be known. Where a taxpayer fails to prove his basis, we are unable to determine the amount of loss that is deductible. Zmuda v. Commissioner, 79 T.C. 714, 727 (1982), affd. 731 F.2d 1417 (9th Cir. 1984); Millsap v. Commissioner, 46 T.C. 751, 760 (1966), affd. on other issues 387 F.2d 420 (8th Cir. 1968); see, e.g., sec. 1.165-1(c), Income Tax Regs. Petitioner has not proven any tax basis in the Bronx Boulevard house. Because petitioner did not own the Bronx Boulevard house or establish a tax basis in the house, we hold that petitioner is not entitled to a casualty loss deduction for the fire damage to the house. Turning to petitioner’s personal property allegedly destroyed in the Bronx Boulevard house fire, petitioner has notPage: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 NextLast modified: November 10, 2007