T4s in Canada: A Detailed Guide for Employers

For Canadian employers, T4s are a non-negotiable part of payroll reporting. All employers are required to submit T4s for each employee, but often do not know exactly how. Questions often come up around what income needs to be reported, how benefits and deductions are treated, and what happens when payroll doesn’t follow a neat, predictable pattern throughout the year.

This guide takes a comprehensive look at T4s and T4 reporting in Canada. Whether you’re running payroll year-round or dealing with a more complex or sporadic setup, understanding how T4s work can prevent burdensome mistakes and unnecessary stress, for both you and your employees.

Understanding What a T4 Is (and What It Isn’t)

A T4 is an annual report that summarizes employment income paid to an employee during the calendar year. It includes gross earnings as well as payroll deductions such as CPP contributions, EI contributions, and income tax withheld. This information is issued to employees and submitted to the Canada Revenue Agency, serving as the starting point for an employee’s personal tax filing.

Just as important is understanding what a T4 does not represent. A T4 isn’t a replacement for pay stubs, which show detailed earnings and deductions for individual pay periods. It’s also not used to report payments made to independent contractors, which are generally reported on a T4A. Additionally, a T4 serves a different purpose than a Record of Employment, which is submitted to Service Canada (not the CRA) when an employee leaves an employer for any reason and is used for Employment Insurance purposes.

Who Is Required to Issue T4s

In Canada, any employer who paid employment income during the year is required to issue T4s. This requirement applies regardless of business size or structure. Corporations, sole proprietors, and partnerships are all subject to the same obligations if they have employees.

A common misconception is that T4s only apply to full-time or long-term staff. In reality, the requirement is triggered by income paid, not by hours worked or duration of employment. Part-time employees, seasonal workers, and employees who worked only briefly during the year still require a T4 if they received employment income over $500 or if CPP and/or EI were deducted. Owner-managers often fall into a grey area. When owners are paid through payroll rather than dividends, that income is reported on a T4 just like any other employee.

The distinction between employees and independent contractors is critical here. Contractors do not receive T4s, but misclassification is common and can create reporting issues later. Employers should be confident in how workers are classified before issuing any T4 reports.

When T4s Are Required and How Timing Works

T4 reporting is based on the calendar year, not a business’s fiscal year. Any employment income paid between January 1 and December 31 is reported on that year’s T4. This is based on pay date, not pay period. E.g. If an employee is paid on Jan 2, 2026 for work done between December 17 and December 31, 2025, it is considered 2026 income and would not be included on the 2025 T4.  

This applies even when employment situations change throughout the year. Employees who leave mid-year still receive a T4 for the income they earned before departure. Businesses that stop operating or restructure partway through the year are still required to issue T4s if employees were paid earlier in the year.

In addition to providing T4s to employees, employers must submit T4 reports and a T4 Summary to the CRA. The summary consolidates totals across all employees and must match the figures reported on individual T4s. Discrepancies at this stage often lead to follow-up or penalties. For T4s, accuracy is essential. 

What Happens When Payroll Isn’t Run During the Year

Acommon source of confusion around T4s is whether payroll activity occurred consistently throughout the year. The key factor isn’t whether payroll software was used, but whether employment income was paid.

If no employees were paid at all during the year, T4s are generally not required. However, if employees were paid wages outside of a formal payroll system, or if payroll began later in the year, T4s are still required for the income that was paid.

This scenario often leads employers to search for answers to questions like “how to report income without a T4” or “do I need to issue a T4 if payroll wasn’t run.” In these cases, the obligation is the same: employment income must be reported accurately. Employers may need to reconstruct payroll records, verify amounts paid, and confirm deductions before issuing T4s.

Information Required to Prepare Accurate T4s

Accurate T4 reporting depends on having complete and correct information from both the employer and employee sides. Employer details such as the legal business name, CRA payroll account number, and business address must be correct. Employee information, including full legal name and Social Insurance Number, must also be accurate, as even small errors can delay processing or trigger CRA follow-up.

Payroll data plays a central role as well. Employment income, CPP contributions, EI contributions, income tax withheld, and taxable benefits must all be calculated and recorded properly. Errors or omissions in any of these areas will require T4s to be amended after submission.

Taxable vs Non-Taxable Benefits on T4s

One of the most complex areas of T4 reporting is determining whether a benefit is taxable. Many employer-provided benefits feel like income to employees, but not all are treated the same for tax purposes.

Dental and health benefits are a frequent source of confusion. Most employer-paid dental and health plans are considered non-taxable benefits and do not increase an employee’s taxable income. Others are considered taxable and must be included on the T4. The determining factors depend on the plan.

Other benefits, such as allowances, personal use of employer vehicles, or certain reimbursements, may be taxable and require reporting. Incorrect benefit reporting is acommon reason for employers to issue amended T4s.

When there is uncertainty about benefit treatment, reviewing the benefit structure and seeking professional guidance can help prevent reporting errors.

CPP and EI Reporting: Common Issues Employers Encounter

CPP and EI contributions are core components of T4 reporting. Incorrect CPP or EI amounts are frequently flagged by the CRA after submission.

Issues often arise from over-contributions, under-contributions, or incorrect application of exemptions. For example, certain age thresholds, pension situations, or employment arrangements may affect CPP obligations. When these nuances are missed, discrepancies appear on the T4.

Because CPP and EI affect both employer and employee contributions, even small errors can compound quickly. These mistakes often surface after T4s are submitted, leading to amended filings and additional administrative work.

RRSP Contributions and T4 Reporting

Employer contributions to a group RRSP may be considered a taxable benefit and included on the T4 as employment income. There will be an offsetting deduction also recorded on the T4, which causes the net tax to be zero. Employee RRSP contributions, on the other hand, are not reported as income on the T4 and are handled separately on the employee’s personal tax return.

Understanding this distinction is critical. Misreporting RRSP contributions can affect an employee’s taxable income and RRSP room calculations, leading to issues well beyond payroll reporting. 

Tips and Gratuities: When They Appear on T4s

Tips and gratuities are especially relevant in industries such as hospitality and service. Whether tips need to be reported on a T4 depends largely on how they are collected and distributed.

Tips that are controlled by the employer and paid through payroll are generally included on the T4 as employment income. Direct tips received by employees may be treated differently, depending on the circumstances.

Clarifying how tips are handled throughout the year can help avoid confusion when T4s are prepared.

Severance, Termination Pay, and Retiring Allowances

Severance and termination payments must also be reported on a T4. Some termination payments are reported on a T4, while others are reported on a T4A, depending on the nature of the payment and its classification.

Severance is generally considered taxable income and needs to be reported on a T4. Payments for damages, such as compensation for personal injury, however, are not considered taxable income. 

How T4s Are Submitted and What a T4 Summary Does

Issuing T4s involves two parallel responsibilities: providing employees with their individual T4s and submitting T4 reports along with a T4 Summary to the CRA. The summary consolidates totals across all employees and must align exactly with the figures reported on individual T4s.

If you have more than 5 employees, you must submit the T4s and T4 summary electronically. Regardless of the submission method, consistency and accuracy are essential. You can submit paper copies if you have 5 or fewer employees, but submitting electronically is still recommended.

Correcting Errors: Amended, Cancelled, and Late T4s

Even with careful preparation, errors on T4s can occur. Common issues include incorrect income amounts, errors in SINs or names, missing deductions, or omitted employees.

When mistakes are discovered, employers may need to issue amended or cancelled T4s. Addressing errors promptly is important, as inaccuracies can delay employee tax filings and lead to CRA follow-up. Late T4s can also create complications for employees, particularly when they’re waiting to file personal tax returns.

Why T4 Accuracy Matters for Employees

Accurate T4s matter for more than just compliance. Employees rely on T4s to file personal tax returns, calculate RRSP contribution room, reconcile CPP and EI contributions, and even support applications for mortgages or credit.

Errors on a T4 can create downstream issues for employees that extend well beyond payroll, making accuracy and timely correction especially important.

The Role of Payroll Software in T4 Reporting

While T4 requirements apply regardless of how payroll is managed, payroll software can reduce many of the manual steps involved in reporting. Automated calculations, centralized records, and built-in reporting tools can help ensure totals align and reduce the risk of errors.

For employers using OneTwoPay, T4s and T4 Summaries in PDF and XML format (for electronic submission) can be generated directly from recorded payroll data, helping streamline reporting and reduce administrative effort, particularly for businesses with complex or evolving payroll needs.

OneTwoPay also provides T4As in PDF and XML format.

T4 reporting is a fundamental employer responsibility in Canada, but it’s rarely simple in practice. Employment arrangements change, benefits vary, and payroll does not always follow a perfect pattern. Taking the time to understand how T4s work, reviewing records carefully, and addressing issues early can make the process significantly smoother and help employers avoid unnecessary complications during tax season.

As an employer, if you are unsure how to generate T4s or T4As for your employees, please give us a call, open a chat or send us an email, and we’ll do our best to answer your questions. Get in touch.