- 19 - International Airport dated February 25, 2003, to support their deduction for supplies. It is unclear whether they want to also assert that the $5 was part of the $8 claimed for parking. If this amount is for parking, it is unclear whether the amount paid was a nondeductible commuting cost. Without more of an explanation, petitioners are not entitled to deduct any amount for parking expenses in 2003. Publications Petitioners claimed $26 for professional publications in 2003. Mr. Farran testified that this amount represented books that he needed for his classes at Dakota County Technical College. Petitioners have introduced no documentation or substantiation of this expense, however. We conclude that petitioners are not entitled to deduct the $26 for professional publications. Expenses Subject to Strict Substantiation Requirements We now consider those expenses that are subject to the additional strict substantiation requirements under section 274(d). Expenses subject to strict substantiation may not be estimated under the Cohan rule. Sanford v. Commissioner, 50 T.C. at 827. Cellular Phone Expenses Petitioners claimed $372 for cellular phone expenses for 2003. Cellular phones are included in the definition of “listedPage: Previous 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 NextLast modified: November 10, 2007