Trignani v. The Queen, 2010 TCC 209 (CanLII)[18] The first argument appears to be based on a long-standing principle that has been applied in the context of spousal support. Under this principle, legal fees incurred to establish a right to spousal support were considered to be on account of capital and not deductible by virtue of s. 18(1)(b). This is in contrast to fees incurred to enforce a pre-existing right, which are on current account.
[19] More recent judicial decisions have questioned the correctness of this principle and it appears that the CRA no longer follows it: Nissim v. The Queen,1998 CanLII 184 (TCC), [1999] 1 CTC 2119; Income Tax Technical News, No. 24, October 10, 2002. At this point, however, the jurisprudence is not clearly established: Nadeau v. The Queen, 2003 FCA 400 (CanLII), 2003 FCA 400, at para. 7.