British Columbia, Canada
The following excerpt is from Deuling v. Ketchum, 2016 BCSC 824 (CanLII):
The burden of proof is on the party seeking to impute income to the other party to demonstrate intentional underemployment or unemployment on the basis of evidence, not mere speculation: Nahu v. Chertkow, 2003 BCSC 1285 at para. 30. However, where the party to whom income is sought to be imputed is a self-employed professional who has unique knowledge of the facts, that party has the burden of demonstrating, at least to some degree, the reasonableness of his/her actions in attempting to find employment. An adverse inference may be drawn from the failure to produce relevant documents or answer relevant questions on discovery: Nahu, at paras. 31 - 32.
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