Troubleshooting

T4 slips are issued when there have been deductions from the employee’s pay that go towards the Canadian Pension Plan (CPP) (or the Quebec Pension Plan QPP), Employment Insurance (IE), Income taxes or Provincial Parental Insurance Plan. So the income on the T4 is considered to be Canadian income, even if it was paid by a foreign company.

Is it possible that your employer also has a US slip that has your US income on it?