A T4 is the slip an employer issues each employee summarising their employment income and the income tax, CPP and EI withheld during the calendar year.
The T4 Statement of Remuneration Paid reports an employee's total employment income and deductions for the year. Employers must issue T4s to employees and file them with the CRA by the last day of February following the year. Employees use their T4s to complete their personal T1 return.
The amounts on the T4s must reconcile to what was actually remitted through the year via source deductions; discrepancies are a common trigger for CRA follow-up. A related slip, the T4A, reports other income such as contractor fees or pension income and generally carries no CPP or EI.
By the end of February, an employer issues each employee a T4 showing the year's gross pay and the income tax, CPP and EI withheld, and files copies with the CRA. Employees enter these figures on their T1.
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