General information only — not financial advice for your situation.
This is a learning tool. Always check CRA My Account records and talk to a qualified professional for your own numbers.
Plain English
A slip your employer gives you showing how much you earned and how much tax, CPP, and EI were taken off your pay during the year.
Technical definition
The T4 — Statement of Remuneration Paid is issued by employers to report gross employment income, income tax deducted at source, CPP/QPP contributions, EI premiums, and other source deductions. Employers must issue T4 slips by the last day of February following the calendar year. The amounts flow onto the T1 General return.
Examples
- • Your T4 shows $80,000 in Box 14 (employment income), $15,200 in Box 22 (income tax deducted), and $3,867 in Box 16 (CPP contributions) for 2025.
- • You received two T4s because you changed jobs mid-year — both get reported on your single T1 return.
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About this site
Every number on this site is sourced from CRA publications, the Income Tax Act, or provincial fiscal releases. We show the math, cite the sources, and never tell you what to do with your money.