Your T4 slip, box by box
What a T4 Statement of Remuneration Paid contains, when it must reach you, and a map of every box with a link to the article that explains it.
Updated 24 July 2026 · 1 min read
The T4, Statement of Remuneration Paid, is the slip your employer gives you after the end of the year. It reports your 2026 pay and everything withheld from it. One employer means one T4.
When it should arrive
Your employer must file the T4 information return and give you your copy on or before the last day of February following the calendar year. For 2026 slips that is 28 February 2027, which falls on a Sunday, so the practical date is Monday 1 March 2027.
The boxes
| Boxes | What they hold | Article |
|---|---|---|
| 10 to 18 | Province, SIN, pay, CPP, CPP2 and EI | Boxes 10 to 18 |
| 16A | Second CPP contributions | Box 16A |
| 20 to 29 | Pension plan, tax deducted, insurable and pensionable earnings, exemptions | Boxes 20 to 29 |
| 44 to 56 | Union dues, donations, pension adjustment, provincial parental insurance | Boxes 44 to 56 |
| Other information | Two-digit codes at the foot of the slip | Other information boxes |
Boxes are not pre-numbered at the foot
The six spaces in the "Other information" area at the bottom of the slip have no fixed numbers. Your employer writes in the code and the amount. Read the codes carefully; two slips from two employers will not use the same order.
If you worked in Quebec
Your Quebec employer also issues an RL-1, and Hypertax needs it as well as the T4 to prepare your TP-1. Read filing a Quebec return.
Sources
Every figure and every procedure on this page was checked against the pages below on the date shown. The agencies revise these pages, so confirm anything you are about to act on.
- T4 slip: information for employers (opens in a new tab)canada.ca · checked 24 July 2026
- Completing and filing information returns (opens in a new tab)canada.ca · checked 24 July 2026
- Line 10100 – Employment income (opens in a new tab)canada.ca · checked 24 July 2026
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This article explains a form and a process. It is general information, not tax advice about your own situation, and Hypertax does not send your return to the CRA — you print it and mail it. See the not-tax-advice notice and the rest of the help centre.