CRA indicates that refinery catalysts are Class 26 property notwithstanding their short useful life
In response to a submission that “Most modern refinery catalysts have a useful life of 1 to 3 years and are disposed of at the end of this period,” CRA stated:
Our position remains that the cost of catalysts is properly classified as Class 26, deductible on a declining basis at 5% per year. … We suggest you make a submission to the Department of Finance.
Neal Armstrong. Summary of 7 June 2017 Canadian Petroleum Tax Society Roundtable, Q.7 under Sched. II, Class 26.