Your ATS Is Probably AI: Ontario's Job Posting Rules And The Two That Actually Catch Employers

Most coverage of Ontario's new job posting requirements presents six rules as a uniform compliance list, which is accurate and not very useful. They are not equally difficult. Four can be handled by editing a template. Two cannot, and those two are where an otherwise diligent employer is most likely to be non-compliant right now without knowing it.

The Split That Organizes Everything

Before the detail, the organizing observation, because it determines where an employer should spend its attention.

Compensation disclosure, vacancy status, the Canadian experience prohibition and record retention are all satisfied by changing what a posting says and where a file is stored. They are real obligations with real consequences, but they are discharged once and then apply automatically to every future posting made from the corrected template.

The AI disclosure and the 45-day notification are different in kind. The first requires an employer to know something about its own systems that it probably has not investigated. The second requires a workflow that runs for six weeks after every interview, across every hiring manager, indefinitely. Neither is solved by a template, and one industry guide reaches the same conclusion from experience, noting that getting the salary range and the AI disclosure right is where most employers slip[1].

Who Is Covered, And When

The scope tests are specific and both contain a detail worth catching.

The obligations apply only to an employer with 25 or more employees on the day the job is posted[2], and only to publicly advertised external job postings; if you have fewer than 25 employees, or the posting is internal only, the rules do not apply[1].

Note that the headcount is measured on the day of posting rather than annually or at a fixed date. A business hovering near the threshold does not have a stable answer, and can be in scope for one posting and out for another. A growing business crosses into the regime without any event marking the transition.

On what counts as covered, the legislation defines a publicly advertised job posting as an external job posting that an employer or a person acting on behalf of an employer advertises to the general public in any manner, subject to certain prescribed exclusions[3]. The phrase "or a person acting on behalf of an employer" is doing work: a recruiter or staffing agency posting on your behalf does not move the obligation off you.

Where The Rules Come From

Worth knowing because the multi-statute origin explains why coverage of these rules has been fragmented and occasionally inconsistent.

The changes stem from multiple pieces of recent legislation, the Working for Workers Four Act, 2024, the Working for Workers Five Act, 2024, and the Working for Workers Seven Act, 2025, along with Ontario Regulation 476/24, Rules and Exemptions re Job Postings, collectively establishing new disclosure requirements for employers and compliance obligations for online job posting platforms[4].

Three statutes and a regulation, layered over the Employment Standards Act, 2000. An employer researching this will find commentary written at different points in that sequence describing different subsets of the rules, which is a reason to work from a current consolidated source rather than the first article that appears.

The Four Template Changes

Vacancy status. Postings must state whether the posting is for an existing vacancy[1]. One practical guide recommends adding a statement about vacancy, existing or newly created, to the posting template[5]. This provision targets so-called ghost postings advertised where no role exists.

Canadian experience prohibition. Employers cannot require Canadian work experience in publicly advertised job postings or on the related job application form[5]. Note the extension to the application form, which is a separate document frequently maintained by a different person or embedded in an applicant tracking system, and which is easy to leave uncorrected after the posting template is fixed. This obligation connects directly to the skills-matching problem examined elsewhere in this publication.

Record retention. Employers must retain copies of each publicly advertised job posting and any associated job application form for three years after the posting is taken down[5]. The clock runs from removal, not from posting, which means a long-running posting has a correspondingly long retention tail.

Compensation disclosure. Postings must include the expected compensation or a range[2]. Mechanically simple, definitionally not, which is the subject of the next section.

The Compensation Definition Trap

The pay disclosure rule looks like the easiest of the six and contains the subtlest problem.

The parameters are clear enough. When providing a range, the difference between the minimum and maximum cannot exceed $50,000 per year, and the requirement does not apply to positions where expected compensation, or the upper limit of the range, exceeds $200,000 annually[4][2]. Where an employer does not yet know the exact salary, a reasonable salary range may be used[6].

The definitional point is where care is needed. "Compensation" is defined as "wages" under the ESA, and in the ESA "wages" broadly covers most forms of pay and allowances under an employment contract, but excludes tips, non-performance-based discretionary bonuses, expenses, travel allowances, and employer benefit plan contributions[4].

So the disclosed figure is not total compensation as an employer or candidate would ordinarily use the phrase. Benefits, discretionary bonuses and allowances sit outside it. An employer that discloses a range built up from a total rewards figure has disclosed something other than what the provision requires, and one that quietly assumes the exclusions work the other way, treating a performance bonus as excluded when it is not, has the same problem in reverse. This is a question worth putting to employment counsel once, for your specific compensation structure, rather than resolving by intuition.

The AI Definition Is Broader Than You Think

This is the provision most likely to produce inadvertent non-compliance, and the reason is entirely in the definition.

Employers must disclose in any publicly advertised job posting if AI is used to screen, assess, or select applicants, and must include the same note in any associated application form[7].

Now the definition. "AI" is broadly defined to mean "a machine-based system that, for explicit or implicit objectives, infers from the input it receives in order to generate outputs such as predictions, content, recommendations or decisions that can influence physical or virtual environments"[2].

Read that against what ordinary recruiting software does. A system that scores or ranks applicants against a job description infers from input to generate a recommendation. A tool that surfaces a shortlist, flags candidates as strong matches, or orders a candidate list by fit is generating outputs that influence a decision. None of these need to involve a large language model, machine learning, or anything an employer would describe as artificial intelligence in conversation, and on the plain wording of the definition they appear capable of falling within it.

The gap this creates is specific: an employer asks its HR team "do we use AI in hiring?", the team correctly answers that nobody is using ChatGPT to review résumés, and the posting goes out without disclosure while the applicant tracking system quietly ranks candidates by keyword match. Nobody has been careless. The question was simply asked in ordinary language against a definition that is not ordinary language.

Is Your ATS Doing This?

The practical resolution is to stop asking your team and start asking your vendor, in writing.

The question to put to an applicant tracking system provider is not "does your product use AI," which invites a marketing answer in either direction depending on what the vendor thinks you want to hear. It is functional: does the system generate any score, rank, match percentage, recommendation, shortlist, or automated advancement or rejection based on inferring from application content? A yes to any of those puts you in disclosure territory on the definition above, whatever the vendor calls the feature.

Two further points. Vendors have a commercial incentive to describe their products as AI-powered in marketing and as simple rules-based filtering in compliance discussions, and both descriptions may appear in their own materials. Get the answer in writing from someone accountable. And features change: a provider that adds AI-assisted matching in a product update has changed your disclosure obligation without telling you, which argues for revisiting the question at renewal rather than treating it as settled.

Where the answer is yes, the requirement is a clear statement that your hiring process uses AI at any stage to screen, assess, or select candidates[7], in the posting and in the application form.

The 45-Day Rule Is A Process, Not A Posting

The second provision that no template edit reaches, and the one most likely to fail quietly across an organization.

For candidates granted an interview in respect of a publicly advertised job posting, employers must notify the candidate within 45 days of their interview, or their last interview, whether a hiring decision has been made[2].

Three features make this operationally awkward. The clock runs from the candidate's last interview, so every candidate has an individual deadline rather than the process having one. It applies to everyone interviewed, not merely finalists, which for a role with a dozen first-round interviews means a dozen tracked dates. And it survives the outcome: a process that stalls, gets deprioritized, or has its requisition frozen still owes every interviewed candidate a notification within their window.

What the provision requires is notification of whether a hiring decision has been made, which is a lower bar than communicating an outcome to each candidate but still requires someone to send something. In practice the exposure sits with hiring managers running processes outside HR's direct oversight, and with roles that go quiet rather than roles that conclude, because a concluded process naturally generates communication and a stalled one does not.

This is the requirement to build an actual system for: a tracked date per interviewed candidate, an owner, and an escalation before the window closes.

The Remote And National Posting Problem

A scope question that affects employers well outside Ontario.

One recruitment advisory frames the applicable population as employers with 25 or more employees employed in Ontario, employers posting roles Canada-wide, and employers hiring for remote roles that could reasonably be performed in Ontario, advising that for Canada-wide postings or remote roles that could reasonably be performed in Ontario, best practice is to assume the requirements apply, and that many organizations are choosing to standardize job postings nationally to reduce compliance risk[6].

We would flag that this is advisory best-practice guidance rather than a statement of legal scope, and the precise reach of the Ontario provisions to an out-of-province employer posting a remote role is a legal question this article cannot resolve. But the practical logic is sound and worth acting on for a different reason than compliance alone: an employer posting the same remote role nationally cannot easily maintain one version of the ad for Ontario applicants and another for everyone else, and attempting to would create its own problems.

For a Canadian business outside Ontario that hires remotely, the realistic choice is to standardize to the most demanding provincial requirement or to accept ambiguity, and standardizing is cheaper than resolving the ambiguity.

Job Boards Have Obligations Too

A parallel development worth knowing about, because it affects where postings can go.

Online job posting platforms are subjected to new compliance measures to address fraudulent postings[4].

The relevance to an employer is second-order but real. Platforms carrying their own obligations will build validation into their posting flows, which means a posting that omits required elements may be rejected or flagged by the board before any regulator sees it. That is a useful backstop, and it is also a reason not to rely on it: a platform's validation reflects its own compliance needs rather than a legal opinion on yours, and passing a job board's checks is not evidence of compliance with the ESA.

How This Is Actually Enforced

The consequences are ordinary employment standards consequences, which is the point.

These rules sit in the Employment Standards Act, 2000 and are enforced like any other employment standard, so a non-compliant ad is a live compliance risk rather than a paperwork preference, and for multi-location operators in retail, hospitality and healthcare the exposure multiplies across every open role[1]. Failure to comply could result in reviews from the Ministry of Labour and potential fines[8].

The multiplication point deserves emphasis. A single template defect does not produce one breach; it produces one per posting made from that template. An organization running dozens of concurrent postings across locations has replicated whatever error exists in its template dozens of times, which is why the template audit is worth doing carefully once rather than quickly.

A Worked Case: Compliant Posting, Non-Compliant Process

An Ontario employer with roughly 60 staff across three locations. The reconstruction below illustrates a recognizable pattern rather than reporting a specific engagement.

In December 2025 the HR lead read a summary of the new rules and updated the posting template: a compensation range within the permitted spread, a vacancy statement, and removal of a Canadian experience line that had been in the template for years. Records retention was added to the HR calendar. Four requirements addressed properly, in about an afternoon.

Two gaps remained. Asked whether the company used AI in hiring, the HR lead correctly answered no in ordinary terms, because nobody was using any generative tool on résumés. The applicant tracking system, however, produced a match score against the job description and presented candidates in ranked order, which appears to fall within a definition covering a machine-based system that infers from input to generate recommendations influencing decisions. No disclosure was made, on any posting, for eight months.

Separately, the 45-day notification was understood as an obligation to tell unsuccessful candidates the outcome, and the HR team did that reliably for processes that concluded. Two requisitions were frozen mid-process during a budget review. The candidates interviewed for those roles were never told anything, because there was no decision to communicate and no mechanism tracking the individual 45-day windows that had continued running regardless.

Nothing here reflects carelessness. It reflects the difference between a rule you can read and satisfy in a document, and a rule that requires you to investigate your own systems or build a workflow.

The Wider Trend

Two reasons not to treat this as a one-off Ontario compliance chore.

First, direction of travel. One advisory notes that transparency requirements are expanding across Canada and globally, and that waiting until a deadline increases compliance risk and operational complexity[6]. Pay transparency legislation has been advancing in multiple Canadian jurisdictions, and an employer building a compliant process now is unlikely to find the work wasted.

Second, and more interesting, the AI disclosure requirement is an early instance of a pattern this publication has traced across several regulatory files: an obligation to be transparent about algorithmic decision-making, imposed sectorally rather than through a general AI statute. As discussed elsewhere in this publication, Canada has no comprehensive federal AI law, and what exists instead is a growing set of domain-specific requirements, OSFI's model risk expectations for financial institutions, securities disclosure expectations for AI claims, and now an employment standards disclosure obligation in Ontario hiring. An employer that treats this as an HR item rather than as part of its overall AI governance is likely to face the same question again from a different regulator.

What To Do This Week

Confirm your headcount position. The test is 25 or more employees on the day of posting, which is not a stable answer for a business near the threshold.

Audit the template and the application form separately. The Canadian experience prohibition and the AI disclosure both extend to the associated application form, which is typically a different document maintained by a different person.

Put the AI question to your ATS vendor in writing, functionally. Ask whether the system generates any score, rank, match percentage, recommendation, shortlist, or automated advancement based on inferring from application content. Do not ask whether it "uses AI."

Check the compensation definition against your pay structure. Compensation means wages under the ESA, which excludes tips, non-performance-based discretionary bonuses, expenses, travel allowances and benefit plan contributions. Confirm your range is built from the right components.

Build the 45-day tracker. One tracked date per interviewed candidate, an owner, and an alert before the window closes. Test it specifically against the scenario where a requisition is frozen.

Standardize nationally if you post remote roles. Maintaining divergent versions of the same posting is harder than complying with the more demanding standard.

Get the AI answer re-confirmed at vendor renewal. A product update can change your disclosure obligation without notice.

The Limits Of This Analysis

Several caveats matter. This article describes Ontario provisions in force since January 1, 2026 based on legal and industry commentary rather than the statutory and regulatory text, and readers should work from the ESA, Ontario Regulation 476/24 and current Ministry of Labour guidance with qualified employment counsel. The rules derive from three statutes and a regulation and commentary written at different points describes different subsets. Prescribed exclusions from the definition of publicly advertised job posting exist and are not enumerated here. The application of the AI definition to any particular applicant tracking system is a legal question dependent on that system's actual functionality, and this article's reading of the definition is offered as a reason to investigate rather than as legal advice. The scope of these provisions for out-of-province employers posting remote roles is unresolved here and the guidance reported on it is advisory best practice, not a statement of law. Nothing in this article is employment law advice.

Related Reading

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Frequently Asked Questions

Who do these rules apply to?

Ontario employers with 25 or more employees on the day a job is posted, and only to publicly advertised external postings. Internal-only postings and employers below the threshold are outside the rules. Note the headcount test is measured per posting, so a business near the threshold does not have a stable answer.

What are the six requirements?

Disclose expected compensation, disclose any use of AI in hiring, state whether the vacancy is real, remove Canadian experience requirements, notify interviewed applicants within 45 days whether a hiring decision has been made, and retain postings and application forms for three years after the posting comes down.

Does my applicant tracking system count as AI?

Possibly, and this is the main trap. AI is defined as a machine-based system that infers from input to generate outputs such as predictions, content, recommendations or decisions influencing environments. A system producing match scores, ranked candidate lists or automated shortlists appears capable of falling within that, whether or not anyone internally calls it AI. Ask your vendor functionally, in writing.

What are the salary range limits?

A posted range cannot span more than $50,000 per year, and the requirement does not apply where expected compensation or the top of the range exceeds $200,000 annually. Note that "compensation" means wages under the ESA, which excludes tips, non-performance-based discretionary bonuses, expenses, travel allowances and employer benefit plan contributions.

Why is the 45-day rule harder than it sounds?

Because it is an operational obligation, not a posting one. The clock runs from each candidate's last interview, so every interviewed candidate has an individual deadline, it applies to all interviewees rather than finalists, and it keeps running if a requisition is frozen or the process stalls, which is exactly when nobody thinks to communicate.

I am outside Ontario but hire remotely. Am I caught?

Unresolved, and this article cannot answer it. Recruitment advisory guidance suggests assuming the rules apply for Canada-wide postings and remote roles that could reasonably be performed in Ontario, and standardizing nationally. That is best-practice advice rather than a statement of legal scope, but maintaining divergent versions of one posting is usually harder than meeting the stricter standard.

References

1. Workforce.com. (2026, June 16). Ontario Job Posting Rules 2026: Full Guide, on the six requirements, the 25-employee and external-posting scope, ESA enforcement and multi-location exposure. workforce.com/ca/resources/ontario-job-posting-rules-2026
2. Littler. (2025, November 5). Canada: New Ontario Job Posting Requirements In Force January 1, 2026, including the AI definition, the 45-day notification and the compensation thresholds. littler.com/news-analysis/asap/canada-new-ontario-job-posting-requirements-force-january-1-2026
3. Osler, Hoskin & Harcourt LLP. (2025, December 15). Reminder For Ontario Employers: Incoming Public Job Posting Requirements, including the definition of publicly advertised job posting. osler.com/en/insights/blogs/employment-and-labour-law-blog/reminder-for-ontario-employers
4. Hicks Morley. (2025, December 16). New Year, New Rules: Ontario Job Posting Requirements Take Effect January 1, 2026, on the source legislation, Ontario Regulation 476/24, the definition of compensation as wages, and platform obligations. hicksmorley.com/2025/12/16/new-year-new-rules-ontario-job-posting-requirements
5. Human Resources Professionals Association. (2026, January 23). Ontario Pay Transparency + AI Disclosure: What HR Teams Must Know In 2026, on vacancy statements, the Canadian experience prohibition extending to application forms, and record retention. hrpa.ca/hr-insights/ontario-pay-transparency-2026
6. HighlightTA. (2026, April 16). Canada Job Posting Transparency Changes Employers Need To Know, on remote and national postings and the recommendation to standardize. Note: advisory best-practice guidance from a talent acquisition consultancy, not a statement of legal scope. highlightta.com/blogs/canada-job-posting-transparency-changes-employers-need-to-know
7. SpringLaw. (2025, November 20). Ontario's New AI Rules For Job Postings In 2026: What HR Needs To Do Now, on the scope of the AI disclosure and its extension to application forms. springlaw.ca/ai-job-posting-rules
8. IQ Partners. (2025, December 9). Canada's Hiring Shake-Up: What New Legislation Means For Job Postings, AI Screening And Pay Transparency, on Ministry of Labour reviews and potential fines. iqpartners.com/blog/canadas-hiring-shake-up
9. CBC News. (2025, December 30). Major Changes To Ontario Law On Job Postings Coming Jan. 1. cbc.ca/news/canada/ottawa/major-changes-to-ontario-law-on-job-postings-coming-jan-1

This article discusses Ontario employment standards requirements and is provided for general informational purposes. It is not employment law advice. The rules derive from multiple statutes and a regulation with prescribed exclusions not enumerated here; work from the ESA, Ontario Regulation 476/24 and current Ministry of Labour guidance with qualified employment counsel.