Can CRA challenge farm losses I claimed against other income?

Yes. CRA frequently scrutinizes farming loss claims, particularly when a taxpayer has significant income from other sources. Under the Income Tax Act, the deductibility of farming losses depends on whether farming is the taxpayer's "chief source of income" or a "subordinate source combined with" another chief source.

If farming is your chief source of income or a significant part of a combination, you can generally deduct the full farming losses against other income. However, if farming is a sideline activity (a "hobby farm" or supplementary endeavor), losses may be restricted — only a portion of the loss is deductible against other income as a "restricted farm loss," with the remainder carried forward to be deducted only against future farming income.

CRA auditors look at factors such as the time and effort devoted to farming, the farming operation's history of profitability (or realistic potential for it), capital invested, and whether the taxpayer has farming expertise. A farm that has never shown a profit and shows no realistic prospect of doing so is likely to be characterized as a restricted farm loss situation or, in extreme cases, as a personal hobby with no deductible losses at all. If your farm has been operating at a loss for multiple years, documenting your business plan and the reasonable expectation of profitability is important.