How to handle multiple T4 and RL-1 slips in the same year in Quebec

Having several jobs in the same year is common: part-time work, seasonal contracts, job changes. This often means several T4 and RL-1 slips at tax time. Poorly handling these slips can lead to an unexpected balance owing or errors in your returns.

Here is how to stay organized in Quebec.

1. Gather all slips

For every job you held during the year, you should receive:

• A T4 (federal).
• An RL-1 (Quebec).

Check that you have:

• One full set of slips per employer.
• Correct amounts of income and tax withheld at source.

If a slip is missing, contact the employer first, then check your Revenu Quebec and CRA online accounts.

2. Understand how multiple jobs affect tax

Each employer usually calculates withholding tax assuming that job is your only income. As a result:

• If you combine several jobs, your actual marginal tax rates may be higher.
• Total withholdings may be insufficient, creating a balance owing.

This does not always mean a mistake was made; it often reflects that combined income exceeded the initial assumptions.

3. Entering slips correctly in your return

In tax software or with a professional:

• Enter all T4 and RL-1 slips separately; do not add them up by hand.
• Let the software aggregate totals into the correct boxes.

Make sure that:

• Boxes related to RRSPs (employer pension or group RRSP contributions) are entered correctly.
• Taxable benefits (insurance, car, etc.) are included as shown.

4. Simple numeric example

In 2024 you had:

• Job A (January–June): $25,000 salary, $4,000 tax withheld.
• Job B (July–December): $28,000 salary, $4,800 tax withheld.

Total for the year: $53,000 salary, $8,800 tax withheld.

Depending on your family situation and credits, your true tax may be slightly higher, leading to a small balance owing. For the next year, you can adjust your TD1 and TP-1015 forms so withholdings better reflect your situation.

5. Other items to watch

• Ensure your union or professional dues are correctly reported; they may be deductible. See also Union dues, professional dues, and work-from-home expenses for employees in Quebec.
• If you also have self-employment or rental income, consult our guides to coordinate everything properly.

Call to action

If you had multiple jobs in Quebec and are not sure you integrated all your T4 and RL-1 slips correctly, TaxCove can review your return and your withholdings at source. To book a meeting, start with the form on the secure tax intake form page.

Important notice

This article provides general information only and does not replace personalized tax advice. Tax rates, credits, and forms can change. Always check the latest information from Revenu Quebec and the CRA or talk to a professional before filing.