Sorry, but funeral expenses are not an eligible deduction and cannot be claimed on any tax returns.
The CPP Death Benefit is a payment made that is supposed to help with funeral expenses for a deceased CPP contributor. This is a taxable benefit that must be reported by the surviving spouse or common-law partner of the deceased; or the next-of-kin of the deceased.
https://www.canada.ca/en/services/benefits/publicpensions/cpp/cpp-death-benefit.html
