Claiming 2017 expenses in 2018

I had started a business in 2017 but I didn't register it until sometime in 2018. When I registered the business I said it started in 2017 because I had expenses related to it (I hadn't started making sales in 2017 yet). How do I go about claiming those expenses from the previous year and setting the start date in 2017 on my taxes?


You'll need to "adjust" your 2017 tax return to report your 2017 expenses. Expenses cannot be carried forward to another year and applied against that year's income. If you had "Capital Costs" (items for which you are claiming Capital Cost Allowance or depreciation on), you could choose to use these in a future year as CCA is an optional claim. 

Here's a little more information you might find helpful from TurboTax on CCA and Expenses:

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