Navigating the Employment Standards Act Ontario complaints process

Nobody starts a business hoping to meet an employment standards officer. But employ people for long enough and somebody will eventually say, “I think my last pay was short,” and how you answer that sentence matters more than almost anything else in this guide. Handled quickly, it’s a ten-minute fix and a thank-you. Handled slowly, it can become a file with a number on it.

This guide lays out the Employment Standards Act Ontario complaints process in the order it actually unfolds. You’ll find out who’s covered and why the choice between a Ministry claim and a lawsuit matters so much. You’ll also see how claims are filed and investigated and what happens afterward. We’ve folded in the 2025 and 2026 changes Ontario employers are expected to know, because the best time to learn a rule is before somebody asks about it. And we’ve kept it practical, because a Ministry notice is stressful enough without the jargon.

Understanding the Ontario Employment Standards Act (ESA)

Every job in Ontario comes with a rulebook, whether or not anyone has read it. The Employment Standards Act, 2000 (ESA) is the main one, and it works alongside the Ontario Human Rights Code and the Occupational Health and Safety Act (OHSA). Discrimination complaints go to the Human Rights Tribunal of Ontario, which is a different door entirely. The ESA itself sets statutory minimums for minimum wage, hours of work, overtime pay, vacation time and pay, public holidays, leaves of absence, equal pay and termination notice. Our guide to Ontario employment standards walks through each of them, and they’re the raw material of most claims.

What surprises people is that you can’t opt out of any of it. An agreement to waive a statutory right such as overtime or holiday pay is null, void and invalid, which makes a signed waiver a nicely formatted wish. Employees can’t give these rights away, and employers can’t buy them back.

Ontario has also been busy. Three changes since mid-2025 belong on your checklist, as set out by the Government of Ontario, and the last one is the easiest to test in public because anyone can read a job posting.

• 19 June 2025: long-term illness leave. Employees with at least 13 consecutive weeks of service can take up to 27 weeks of unpaid, job-protected leave in a 52-week period for a serious medical condition, supported by a medical certificate. The job is still there when the person is ready to come back.
• 1 July 2025: new-hire information. Employers with 25 or more employees must give new hires written job information before their first day, or as soon as reasonably possible. It covers legal names, contact details, work location, starting wage, pay periods and expected initial hours. Think of it as the handshake, in writing.
• 1 January 2026: job postings. Employers with 25 or more employees must include the expected compensation, or a range not exceeding $50,000 a year, in publicly advertised postings unless the pay is over $200,000. Postings must also say whether AI screens applicants and whether the role is an existing vacancy, and they can’t require Canadian experience. Interviewed applicants must hear the outcome within 45 days. “Competitive salary” no longer counts as a number.

Who is covered by the ESA (and key exemptions)

Most employees in Ontario, full-time and part-time, are covered by the ESA. The exceptions are short enough to read in one go.

• Federally regulated workplaces. Airlines, banks, the federal civil service, postal services, telecommunications, radio and TV stations and interprovincial railways fall under federal jurisdiction, so their employees can’t file provincial claims. A federal unjust dismissal complaint goes first to the Labour Program, which can refer unresolved complaints to the Canada Industrial Relations Board (CIRB).
• Unionized employees. An employee represented by a union and covered by a collective agreement can’t file an ESA claim, and the grievance process takes its place.
• Specific exemptions. Police officers are exempt, except for the provisions on lie detector tests. People doing community participation under the Ontario Works Act, 1997, inmates in rehabilitation programs and people in approved school work experience programs are also exempt.
• Gig workers. Since 1 July 2025, the Digital Platform Workers’ Rights Act, 2022 has given app-based platform workers enforceable rights, including pay transparency and minimum wage protections.

Then there’s misclassification, which is where growing businesses can get tripped up. Employers can’t label employees as independent contractors, interns or volunteers to avoid the ESA. Calling a burger a salad doesn’t change the nutrition label, and calling an employee a contractor doesn’t change the working relationship.

Ministry of Labour claims vs. civil litigation

Every employee with a pay or termination dispute eventually reaches a fork in the road. The route they choose decides what they can recover, how long it takes and what you’ll be dealing with, so it’s worth understanding from your side of the desk.

The two routes are mutually exclusive. An employee can’t file an ESA claim if they’ve already started a civil action over the same matter, and an employee who files an ESA claim generally can’t sue over it afterwards. The ESA does build in one cooling-off period: an employee who withdraws a complaint within 2 weeks of filing it can still commence a civil proceeding. After that, the door closes. That’s the procedural trap, and it explains why you’ll sometimes see an employee take a beat, or take advice, before filing. A Ministry claim for termination or severance pay generally ends the right to sue for wrongful dismissal over the same termination.

The two routes also ask different questions. A Ministry claim asks what the statute required. A lawsuit asks what was reasonable. Wrongful dismissal is a common law claim for civil court, and a Ministry of Labour complaint can only recover statutory minimums, which have caps. According to ontario.ca, statutory termination pay is capped at 8 weeks (up to 16 weeks in mass terminations). Eligible employees can add statutory severance pay of up to 26 weeks, for up to 34 weeks of statutory compensation in an individual termination. Courts weigh age, length of service, the character of the employment and the availability of similar work. They have rejected any fixed formula, although awards often land near or above 1 month of notice for each year of service.

Ministry of Labour claims vs. civil litigation

From the employer’s chair, the fork tells you who to call first. A Ministry claim is largely a records question: what did you pay, and what did the ESA require? A lawsuit is a bigger conversation, and your termination clause is part of it.

If answering a pay question means hunting through several systems, a demo will show you how Employment Hero keeps every pay run adjustment and approval together.

Steps before a formal complaint: internal dispute resolution

The best complaint process is the one nobody ever needs to use. People who raise a pay concern are often not looking for a fight. They want to be heard and paid correctly, which is the same thing you’d want. So the first step is usually quiet: the employee talks to a supervisor, follows the company’s internal complaint procedure or goes to HR. A formal complaints handling policy makes that conversation easier by giving people a clear place to take a grievance and giving you the chance to fix a small problem while it’s still small.

Both sides should write things down: the conversation, the date, the incident and what was agreed. If a dispute does escalate, the evidence that matters is rarely dramatic. It’s pay stubs, time records, employment contracts, company policies, emails, witness statements and, in leave cases, medical records. The employer who can find those in five minutes starts every later step ahead.

While a complaint is open, an employee who’s still employed is advised to keep doing the job professionally and avoid discussing the complaint with coworkers. For employers, the matching rule is discretion. Handle the matter privately, and remember that the ESA protects people who ask about or enforce their rights, so raising a concern should never cost anyone their schedule, their pay or their job.

How to file an employment standards claim in Ontario

Filing a claim is meant to be easy, and it is: free, online and no lawyer required. Claims go to the Ministry of Labour, Immigration, Training and Skills Development (MLITSD), and this is the route an employee follows to reach you:

1. Gather the evidence. Pay stubs, time records, the employment contract, policies, emails, witness statements and any medical records.
2. Check the deadline. Employees have up to 2 years from the date of the alleged violation to file, and missing the deadline can lead to the complaint being dismissed.
3. File the claim. File online through the Ministry of Labour’s portal, or call the Employment Standards Information Centre at 1-800-531-5551 (TTY 1-866-567-8893). There are no filing fees, and legal counsel isn’t required.
4. Wait for the assignment. The Ministry assigns an employment standards officer, and the employer is notified.

The Ministry also handles violations of the Employment Protection for Foreign Nationals Act, 2009 and the Protecting Child Performers Act, 2015. Employers with a My Ontario account can use the Ministry’s Business Portal to check the status of claims and inspections and to upload documents, which beats waiting for the mail.

The investigation process and potential outcomes

A Ministry notice is an invitation to show your work. Once an ESA complaint is filed in Ontario, the Ministry assigns an employment standards officer or investigator, and you’re notified and given the chance to respond. The investigator may interview witnesses and review documents, and the process can take anywhere from several weeks to several months depending on how complex the case is. That’s a long time to wonder, so use it well.

Showing your work starts with the records. Pull the pay stubs, time records, the contract and the policies that apply, respond on time, stick to the facts and keep copies of everything you send. Officers also look beyond the complaint itself, checking whether the workplace has posted required materials and kept proper employment documentation, so the mandatory Ontario employer documents are worth having in order before anyone asks. The Ministry doesn’t wait for complaints either. It also conducts proactive workplace inspections, so a visit doesn’t need a complaint to start.

What happens next depends on what the officer finds. If the complaint is unsubstantiated, it’s dismissed. If it’s upheld, compliance orders can require an employer to pay owed wages, reinstate employment, pay monetary compensation or change policies. Claims most often involve unpaid wages, overtime, vacation pay and end-of-employment entitlements, and a monetary order for that last group follows the Ontario termination pay rules.

Watch how Employment Hero keeps payroll records, approvals and employee documents together before an officer ever asks.

Strict protections against employer reprisals

One move turns a manageable complaint into a harder one, and it’s retaliation. It is illegal under Ontario law for an employer to retaliate against an employee for inquiring about, exercising or enforcing their statutory rights. Reprisal covers terminating, demoting, cutting hours, intimidating or otherwise penalizing the employee. Employers, clients of temporary help agencies and recruiters found guilty of reprisal can be ordered to compensate the worker financially, reinstate a terminated or suspended worker, or both, and the employee can file an additional, separate complaint.

A good test is whether you’d be comfortable reading the decision aloud to an officer. If a schedule, duty or pay change has a sound reason unrelated to the complaint, write the reason down at the time and have a second person review it before anything changes.

How to appeal an employment standards decision

This is the part employers rarely hear about until it’s urgent. Both employees and employers can apply for a review of an ESA decision, and the deadline is strict: 30 days. Reviews, along with appeals of inspector health and safety orders, go through the Ontario Labour Relations Board (OLRB).

For employers, there’s a catch. To apply for a review of an order to pay wages, you must first pay the full amount of the order, including administrative costs, to the Director of Employment Standards in trust. For an order to pay compensation, the deposit is the lesser of the order amount and $10,000. The Board can’t waive the requirement, and it has to be met within the 30-day window, so the day an order arrives is the day to get advice.

Answering the small question early

When somebody says “I think my last pay was short,” the best response is a pay stub and a conversation. Everything else in this guide is what happens when that conversation comes late. Fix it fast and write it down, and most of this process can stay a story about other businesses.

Ready to answer the next pay question from a record rather than a memory?