If payroll year-end is creeping up on you, one question matters more than most: when are T4 slips due? For Canadian employers, the deadline is generally the last day of February following the calendar year being reported. Miss that date, and you may be dealing with avoidable penalties, employee frustration, and extra CRA follow-up.
For small and medium-sized businesses, T4 filing is one of those tasks that sounds simple until the details start stacking up. You are not just issuing a slip to an employee. You are also preparing the related T4 Summary, making sure payroll deductions match your remittances, confirming taxable benefits were handled properly, and filing everything on time.
When are T4 slips due?
In most cases, T4 slips are due by the last day of February after the end of the tax year. That same deadline applies to providing T4 slips to employees and filing them with the Canada Revenue Agency.
So if you are reporting employment income for the 2024 calendar year, the T4 slips and T4 Summary are generally due by February 28, 2025, unless that date falls on a weekend or recognized deadline extension rule applies. The key point is that employers should not treat employee delivery and CRA filing as separate seasonal tasks with different due dates. They are typically due at the same time.
This deadline applies whether your business is incorporated, owner-operated with staff, or part of a larger payroll structure. If you paid salary, wages, bonuses, taxable allowances, or certain benefits during the year, you likely need to prepare T4 slips.
Who has to issue a T4 slip?
A T4 slip is generally required when you pay employment income to an employee and withhold payroll deductions such as Canada Pension Plan contributions, Employment Insurance premiums, or income tax. It is used to report the employee’s earnings and deductions for the calendar year.
That said, not every payment made by a business belongs on a T4. Independent contractors are usually not issued T4 slips for service payments. Misclassifying a worker can create problems, though, especially if CRA later determines the person was really an employee. In that situation, the issue is no longer just filing a slip late. It can expand into payroll deduction liability, penalties, and interest.
If you are unsure whether someone is an employee or contractor, that question should be settled well before year-end reporting starts.
What employers need to file by the deadline
Meeting the T4 deadline means more than printing a form. Employers are typically responsible for three connected steps.
First, each employee who received reportable employment income needs a T4 slip. Second, the employer must complete a T4 Summary that totals the amounts reported. Third, the information must be filed with CRA by the deadline, using the required filing method.
Employees also need to receive their copies on time. That can be done in paper format or, in some cases, electronically, as long as delivery meets CRA requirements and employees can reasonably access the information.
A common mistake is thinking the work is done once slips are handed to staff. It is not. CRA filing is a separate compliance requirement, and both pieces matter.
Why T4 deadlines are often missed
Late T4 filings usually happen for predictable reasons. Year-end payroll reviews are left too late. Bonus payments are not coded correctly. Taxable benefits such as vehicle benefits, group insurance, or shareholder-employee perks are overlooked. Payroll records may also fail to match source deduction remittances made during the year.
Another issue is internal timing. Many business owners assume that because their corporate year-end falls later, payroll reporting can wait. It cannot. T4 reporting follows the calendar year, not your fiscal year.
Businesses with seasonal labor, high turnover, or multiple pay categories tend to face more payroll complexity. Construction, transportation, medical practices, farms, nonprofits, and retail operations often need extra care because compensation structures can vary across the workforce.
Penalties for filing T4 slips late
If you miss the deadline, CRA can apply penalties based on how many slips were filed late and how long the delay lasted. The penalty amount increases as the number of slips grows, which means what seems minor for a very small employer can become more serious for a growing business with a larger payroll.
There may also be indirect costs. Employees may be unable to file their personal tax returns on time. They may come back with questions or concerns if the numbers do not match their final pay records. If CRA reviews your payroll account, late filing can also increase scrutiny around deductions and remittances.
The larger issue is not only the penalty itself. Late T4 filing often signals that payroll records were not fully reconciled before the deadline. That can lead to correction work that takes far more time than filing accurately in the first place.
What if a T4 slip has an error?
Sometimes the slip is filed on time, but the information is wrong. That is still a problem worth fixing quickly. If you discover an error in employment income, deductions, taxable benefits, or employee identification details, an amended T4 may be required.
Errors often show up after a payroll reconciliation, after an employee asks about a number that looks off, or after year-end bookkeeping is finalized. The sooner the issue is corrected, the easier it is for both the business and the employee.
It depends on the nature of the mistake. A minor administrative issue may be simpler to address than a payroll coding error that affected CPP, EI, or tax withholdings across several pay periods. If multiple slips are affected, the correction process can become more involved.
What employees should expect
If you are an employee wondering when are T4 slips due, the short answer is that you should generally receive yours by the last day of February. If it has not arrived, the first step is usually to contact your employer and confirm whether it was issued, mailed, or made available electronically.
Sometimes the delay is administrative rather than intentional. An employer may have an outdated mailing address, a delivery issue, or a processing backlog. In other cases, the slip may already be available through the employee’s CRA account, even if a paper copy has not arrived yet.
Employees should also review the slip carefully once received. Name, Social Insurance Number, earnings, and deductions should all be checked. Catching an issue early gives the employer more time to correct it before it affects tax filing.
How to prepare before the T4 deadline
The easiest way to meet the T4 deadline is to treat payroll year-end as an ongoing process, not a February emergency. That means reconciling payroll records regularly, reviewing taxable benefits before year-end closes, and making sure remittances align with payroll reports.
It also helps to confirm employee information in advance. Legal names, current addresses, Social Insurance Numbers, and employment status details should be verified before slips are generated. Waiting until filing week usually creates unnecessary delays.
For owner-managed businesses, special attention is often needed when compensation includes a mix of salary, bonus, and shareholder-related benefits. Those items can affect what belongs on the T4 and how payroll deductions should have been handled during the year.
If your payroll has grown, your systems are inconsistent, or prior-year filings contained errors, professional review is often worth it. A reliable payroll process protects more than compliance. It saves management time and reduces disruption during tax season.
When extra support makes sense
Businesses do not usually struggle with T4 slips because the form itself is difficult. They struggle because payroll data is only as good as the records behind it. If bookkeeping is behind, taxable benefits are unclear, or payroll deductions were not reviewed throughout the year, the deadline can arrive before the numbers are truly ready.
That is where having an experienced accounting partner helps. A firm such as WiseWealth Accountancy Services can support payroll accuracy, year-end reconciliations, and filing compliance so business owners are not trying to solve reporting issues at the last minute.
A missed T4 deadline is usually preventable. The best approach is simple: know the due date, keep payroll records clean, and review year-end details before February becomes a rush. That gives you a better chance of filing accurately, paying attention to your employees, and keeping your business focused on work that actually moves it forward.
