If you have not filed your 2025 return, you can start a new return.
If you have already filed your 2025 return and need to correct it, you cannot "cancel" it, but you can amend it using the
CRA ReFile service. But it is highly recommended to wait for your Notice of Assessment (NOA) before ReFILE.
For additional details regarding ReFile, kindly review this
TurboTax article.
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