Accounting fees and the cost of tax prep software are only tax-deductible in a few situations:
If your tax return is re-assessed and you consult a professional accountant for advice, those fees may be deductible in certain cases.
Visit the Canada Revenue Agency’s Line 23200 – Legal Fees web page for details.
If you are self-employed or have rental income, you can enter your fees for TurboTax under office supplies.