common law
The common law reasonable notice period is significantly different from the notice period required under the Employment Standards Act (ESA). While both deal with the termination of employment and the employer’s obligation to provide notice or pay in lieu of notice, they operate under different legal frameworks and offer vastly different entitlements. Understanding the distinction between the two is essential for both employers and employees when dealing with termination of employment.
The ESA is a piece of legislation that sets out the minimum standards employers must follow when terminating an employee. These standards are meant to protect employees by ensuring they receive a basic amount of notice or compensation if their employment is ended without cause. The amount of notice under the ESA is determined primarily by the length of service, and the maximum notice an employee can receive under the ESA is typically capped at eight weeks, regardless of the employee’s role, age, or how difficult it may be for them to find new employment. In some provinces, this cap can vary slightly, but it still remains quite limited.
In contrast, the common law reasonable notice period is based on judge-made law that evolves through court decisions. It is not limited by statutory minimums and considers a range of factors that influence how long it might reasonably take an employee to find comparable employment. These factors include the employee’s age, length of service, position, level of responsibility, and the availability of similar jobs in the market. As a result, the notice period at common law is often significantly longer than the statutory minimums under the ESA. For example, an employee with 20 years of service may be entitled to only eight weeks of notice under the ESA, but could be awarded 18 to 24 months of notice under common law if the circumstances warrant it.

Is common law reasonable notice period different from ESA notice?
One key point is that unless there is a valid and enforceable termination clause in the employee’s contract that clearly limits notice to the ESA minimums, courts will generally apply the common law reasonable notice period. Many employees are unaware of this distinction and may mistakenly believe they are only entitled to what is stated in the ESA. In reality, the majority of wrongful dismissal claims are based on the difference between these two types of notice.
It is also important to understand that the common law reasonable notice period includes all components of an employee’s compensation, not just their base salary. This means that during the notice period, employees are entitled to receive the value of benefits, bonuses, pension contributions, and other perks they would have earned had they continued working. In contrast, ESA notice requirements typically only cover basic wages and vacation pay, with limited consideration of other compensation.
In summary, while the ESA provides a minimum safety net for employees, the common law reasonable notice period is designed to reflect the true impact of a termination on an individual’s ability to secure new employment. It often results in significantly higher compensation and broader protection, making it a critical concept in employment law.
