If I claimed the full amount for the enhanced CCA for EV, would the unsed portion carry over to the following year? If it doesn't would I be able to change it?

[amarch10]

The enhaced CCA is 100%

[Ques_Solver]

Taking CCA is optional; so you can take only a portion this year or none at all. Anything you don’t claim this year will remain in your UCC balance for future years. Since you can’t use CCA to create or increase a loss, you may not be able to take the full amount there, if you have less income than CCA.

You can also check these TurboTax FAQ Links, 

What is the capital cost allowance (CCA) on accelerated investment incentive properties and zero-emi... 

What is the capital cost allowance (CCA) on zero-emission vehicles?

Thanks for choosing TurboTax.

[TurboTaxBrenda]

Good answer please post (if not posted already)