In Ontario, most employees in a dental practice, other than employed dentists and true managers, earn overtime at 1½ times their regular rate for every hour worked past 44 in a work week, and overtime is not calculated daily unless a contract says so. Practices can also use written or electronic averaging agreements or banked time off in lieu, but only on the specific terms set out in the Employment Standards Act, 2000 (ESA).
How many hours did your hygienists, assistants and front desk team work last week? If your evenings run late, Saturday clinics are busy, or someone covered two roles while a colleague was away, the answer may be more than 44, and that is the point where Ontario's overtime rules start to apply.
As of October 2026, the Ontario government's guide to the ESA sets out the overtime rules most dental practices need, and Ontario Regulation 285/01 sets out many of the exemptions, including those most relevant to dental practices. This guide walks through both for practice owners and managers in Toronto, Mississauga, Markham, Vaughan and across the province. It is general information, not legal advice; for a specific situation, use the province's tools or speak with an employment lawyer.
When does overtime start for Ontario dental staff?
The Ontario government's ESA guide is direct: for most employees, overtime begins after 44 hours in a work week. That applies whether the employee is full-time, part-time, a student or a casual worker. Every hour after 44 must be paid at the overtime rate.
The overtime rate is 1½ times the employee's regular rate of pay, often called "time and a half." The province's own example: an employee with a regular rate of $25.00 CAD an hour has an overtime rate of $37.50 CAD an hour.
Two points trip up many practices:
- There is no daily overtime under the ESA. Unless a contract of employment or a collective agreement says otherwise, a 10-hour day does not, by itself, trigger overtime. Overtime is calculated weekly, or over a longer period under an averaging agreement.
- The 44-hour threshold is separate from the limits on hours of work. The ESA guide sets a daily limit of eight hours (or the established regular workday, if longer) and a weekly limit of 48 hours for most employees. Going past those limits needs an electronic or written agreement, and that agreement does not cancel the obligation to pay overtime.
Who is exempt from overtime in a dental practice?
Two exemptions in Ontario Regulation 285/01 matter most for dental practices, and one group of common roles is not exempt.
Dentists employed by the practice
Section 2(1) of O. Reg. 285/01 says that Parts VII, VII.1, VIII, IX, X and XI of the ESA do not apply to a person employed as a duly registered practitioner of dentistry. Part VII covers hours of work and eating periods, and Part VIII covers overtime pay. The same clause also lists chiropody, chiropractic, massage therapy, medicine, optometry, pharmacy, physiotherapy and psychology, and a separate clause covers students in training for those occupations.
Whether an associate is an employee or an independent contractor is a separate question, covered in the ESA guide's chapter on employee status. It matters for other ESA rights, such as leaves and termination, even though employed dentists are outside the overtime rules.
Dental hygienists, assistants and administrative staff
Dental hygiene is not on the list in section 2(1)(b) of O. Reg. 285/01, and neither are dental assisting or office administration. Unless another exemption fits, plan on the standard 44-hour rule applying to these roles. The province's special rule tool is the place to confirm any role you are unsure about.
Office managers and supervisors
Under section 8 of O. Reg. 285/01, the overtime part of the ESA does not apply to a person whose work is supervisory or managerial in character, even if they perform non-supervisory tasks on an irregular or exceptional basis. The ESA guide puts the limit plainly: the exemption holds when the non-managerial tasks are done only on an irregular or exceptional basis.
The guide also explains a 50 per cent rule for employees who do more than one kind of work. If at least half of an employee's hours are in a job category covered by overtime, the employee qualifies for overtime pay.
Pro Tip: If your office manager also works the front desk or assists chairside every week, track those hours separately for one month. That record shows whether the non-managerial work is only irregular or exceptional. If it is regular, the manager exemption may not apply; confirm with the province's special rule tool or an employment lawyer.
How do you calculate overtime for salaried dental staff?
Salaried does not mean exempt. The ESA guide explains two salary arrangements, and they are calculated differently.
Fixed salary
A fixed salary covers all non-overtime hours up to and including 44 hours a week. The guide's example uses a weekly salary of $950.00 CAD and a 50-hour week:
- Regular rate: $950.00 ÷ 44 = $21.59 CAD an hour
- Overtime rate: $21.59 × 1½ = $32.39 CAD an hour
- Overtime hours: 50 − 44 = 6
- Total pay for the week: $1,144.34 CAD
Fluctuating salary
If an employee has set hours and the salary is adjusted when hours change, the salary fluctuates. In the guide's example, a $750.00 CAD salary for a regular 40-hour week works out to $18.75 CAD an hour. That rate is paid for all hours up to and including 44, and the overtime rate is $28.13 CAD an hour.
Employees with two pay rates
Some dental team members split their week between two roles at two rates, such as assisting and reception. The ESA guide says each overtime hour is paid at 1½ times the rate for the work done in that hour. In its example, an employee earning $20.00 CAD and $25.00 CAD an hour for two different jobs worked four overtime hours, two in each role, for overtime pay of $135.00 CAD.
Pro Tip: Set up your payroll software so that hours are recorded by role, not just by day. If a team member's 45th hour is spent at reception and their 47th is spent chairside, the overtime rate for each hour is different if the two roles are paid at different hourly rates.
What are averaging agreements, and when do they help?
An averaging agreement lets the practice and an employee average hours over a set period for overtime purposes. Under the ESA guide:
- The agreement must be made electronically or in writing.
- The averaging period can be two to four weeks.
- Overtime is owed only if the average weekly hours in the period exceed 44. Over four weeks, that means overtime starts after 176 hours.
- Averaging periods cannot overlap and must follow one after the other without gaps.
- For non-union employees, the agreement must have an expiry date no more than two years after it takes effect.
- Neither side can revoke it early unless both agree electronically or in writing.
Averaging can suit practices with uneven schedules, such as a hygienist who works long weeks during a busy recall period and short weeks after. The Ontario government's hours-of-work chapter notes that employers no longer need approval from the Director of Employment Standards for averaging agreements.
Can a dental practice offer time off instead of overtime pay?
Yes, with a proper agreement. The ESA guide calls this "banked" time or time off in lieu, and it comes with firm rules:
- The agreement must be electronic or in writing.
- Each overtime hour earns 1½ hours of paid time off, at the applicable regular rate. One hour of overtime does not equal one hour off.
- The time off must be taken within three months of the week the overtime was earned, or within 12 months if the employee agrees electronically or in writing.
- If the employee leaves before using it, the practice must pay the overtime by the later of seven days after employment ends or what would have been the employee's next pay day.
A practice and an employee cannot agree that the employee gives up overtime pay. The ESA guide says such an agreement would be void, while confirming that employees can agree to time off in lieu or to averaging.
What other hours-of-work rules affect dental schedules?
Overtime rarely travels alone. Long clinic days also bring in the ESA's rules on breaks and rest, as described in the Ontario government's hours-of-work chapter:
- Eating periods: an employee must not work more than five hours in a row without a 30-minute eating period free from work. With agreement, it can be split into two periods that together total at least 30 minutes.
- Daily rest: in most cases, an employee must get at least 11 consecutive hours off work each day.
- Excess-hours agreements: an agreement to work more than eight hours a day or 48 hours a week is valid only if the practice first gives the employee the most recent information sheet on hours of work and overtime from the Director of Employment Standards, and the agreement includes the employee's acknowledgment of receiving it. In most cases an employee can cancel with two weeks' written or electronic notice, and the employer can cancel with reasonable notice.
Pro Tip: Before your next late-clinic or Saturday rotation, check that every non-exempt employee who regularly works past eight hours a day (or their established regular workday, if longer) or 48 hours a week has a current excess-hours agreement on file, with the acknowledgment of the information sheet included.
A quick overtime checklist for Ontario dental practices
- Confirm which roles are covered: employed dentists are exempt from the ESA's hours-of-work and overtime rules (and several other Parts) under section 2(1) of O. Reg. 285/01; hygienists, assistants and administrative staff are not on that list.
- Calculate overtime weekly at 44 hours, or over the period of a valid averaging agreement, unless your contracts promise something better.
- For salaried staff, identify whether each salary is fixed or fluctuating, then use the matching formula.
- Record hours by role for anyone paid at two rates.
- Put averaging and banked-time arrangements in writing or in an electronic agreement, and diarize expiry dates and the three-month or 12-month window for time off.
- Keep excess-hours agreements current, with the information sheet acknowledgment.
- When unsure, check the Ontario Employment Standards Self-Service Tool, which the ministry recommends for compliance checks.
Overtime rules are not complicated, but they are unforgiving of assumptions. How does your practice handle overtime during busy recall seasons: paid, banked or averaged? Share what has worked for your team. For more practical guides for Canadian dental professionals, visit EBIKO Dental.
Sources
- Government of Ontario, Your guide to the Employment Standards Act: Overtime pay (updated February 5, 2026)
- Government of Ontario, Your guide to the Employment Standards Act: Hours of work
- Ontario Regulation 285/01, When Work Deemed to be Performed, Exemptions and Special Rules: e-Laws
Frequently Asked Questions
Q: Do dental hygienists in Ontario get overtime pay?
Generally, yes. Dental hygiene is not among the professions exempted in section 2(1) of Ontario Regulation 285/01, so the standard rule applies unless another exemption fits: overtime at 1½ times the regular rate after 44 hours in a work week. Use the province's special rule tool to confirm a specific role.
Q: Is overtime in Ontario calculated daily or weekly?
Weekly. Under the ESA, an employee does not earn overtime for working more than a set number of hours in a day unless a contract or collective agreement says so. Overtime is calculated per work week, or over two to four weeks under a written or electronic averaging agreement.
Q: Can my dental office give time off instead of overtime pay?
Yes, if the employee agrees electronically or in writing. The employee must get 1½ hours of paid time off for each overtime hour, taken within three months, or within 12 months if the employee agrees. Unused banked time must be paid out if employment ends.