The tax shelter rules, which were originally enacted to target marketed tax shelter schemes, may capture legitimate business undertakings, especially those conducted through a partnership. The rules should therefore be carefully considered whenever a property (such as an interest in a partnership) is expected within the first few years after acquisition to provide the acquiror with tax deductions and prescribed benefits that equal or exceed the property's cost. Published in Volume 22, Number 5 of Canadian Tax Highlights by the Canadian Tax Foundation.