The Canada Revenue Agency (CRA) will be sending you a Notice of Assessment (NOA) with the explanation as to why the calculation was different after their assessment. Sometimes the CRA has access to a forgotten information slip entered in your file or other information that may has not been entered. Once you have reviewed this on the NOA and perhaps with the CRA and if you still believe there may have been a calculation error please see our TurboTax FAQ: How do I submit a claim under the TurboTax 100% Accurate, Expert Approved Guarantee?
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