- 13 - (1968), affd. per curiam 412 F.2d 201 (2d Cir. 1969). For such expenses, only certain types of documentary evidence will suffice. Internet Access Expenses We now examine those expenses not subject to the strict substantiation requirements. Petitioners claimed $75 for Internet access expenses during 2003. We have previously characterized Internet expenses as utility expenses. Verma v. Commissioner, T.C. Memo. 2001-132. Strict substantiation therefore does not apply, and we may estimate the business portion of utility expenses under the Cohan rule. See Pistoresi v. Commissioner, T.C. Memo. 1999-39. Petitioners introduced a copy of an invoice showing they paid PressEnter, L.L.P., $107 for Internet access from October 4, 2003, to April 4, 2004, of which $52 was for Internet access during 2003. Mr. Riley testified that the $23 difference between the amount claimed on the return for Internet access and the amount shown on the PressEnter receipt is attributable to the purchase price of software that had to be installed on petitioners’ computer to make the computer Internet accessible. The PressEnter charges were incurred during the time Mr. Riley worked in Newark while the computer was in Wisconsin. In addition, Mr. Riley failed to introduce documentation showingPage: Previous 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 NextLast modified: November 10, 2007