Michigan PTO Law: Accrual, Usage, and Retaliation Protections

Michigan PTO law, formally the Earned Sick Time Act, requires almost every private-sector employer in the state to provide paid sick time. Workers earn one hour for every 30 hours worked and can use up to 72 hours a year at larger employers, or up to 40 hours a year at businesses with fewer than 10 people. The law took effect on February 21, 2025, and is codified at Michigan Compiled Laws 408.961 through 408.970.¹

Michigan does not have a broader “PTO” statute covering vacation days. The Earned Sick Time Act (ESTA) is the paid-leave law employers must follow, and its rules are what employees can rely on.

Who the Law Covers

ESTA applies to virtually every private employer in Michigan, but employer size changes the obligation. A “small business” is one where fewer than 10 people work for compensation in a given week, counting full-time, part-time, temporary, and staffing-agency workers. An employer stops being a small business once it has had 10 or more people on payroll during 20 or more calendar workweeks in the current or preceding year.²

Most workers qualify. The exclusions are narrow:

Federal employees, who are covered by separate federal leave programs.
Unpaid trainees and interns, because there is no compensated time to accrue against.
Workers employed under the Youth Employee Standards Act (1978 PA 90).
Self-scheduling workers who set their own hours under a policy that also bars the employer from penalizing them for not scheduling minimum hours. On-call and per diem workers do not qualify for this exemption if the employer controls scheduling.
Employers and employees covered by the Railroad Unemployment Insurance Act.
Elected officials and board members, unless the governing body treats them as employees.
Employees based outside Michigan who travel into the state, unless at least 50% of their compensated time is spent in Michigan.

How You Earn Paid Sick Time

Every covered employee earns one hour of paid sick time for every 30 hours worked.⁴ The annual cap depends on how large the employer is:

At employers with 10 or more workers, you can earn and use up to 72 hours per year.
At small businesses with fewer than 10 workers, you can earn and use up to 40 hours per year.

Accrual starts on your first day. If the employer uses the accrual method, though, it can make you wait up to 120 calendar days before you actually use any of the hours you have banked.³ Employers that instead frontload the full annual amount at the start of the benefit year cannot impose that waiting period.

Employers can track usage in the smallest time increment they already use for other absences. If your company records absences in 15-minute blocks, sick time can be used the same way. Otherwise the default is one-hour increments.

When You Can Use Sick Time

Michigan’s law covers a broader range of situations than many workers expect. The qualifying reasons fall into four categories:³

Treatment, diagnosis, or preventive care for a physical or mental health condition, yours or a family member’s. Family members include children, spouses, parents, grandparents, grandchildren, and siblings, among others.
Medical care, counseling, legal services, relocation, victim services, or court proceedings related to domestic violence or sexual assault, for you or a family member who is a victim.
Meetings at your child’s school or place of care about the child’s health, a disability, or the effects of domestic violence or sexual assault.
Public health closures, or situations where a health authority or provider says your presence, or a family member’s, would endanger others because of exposure to a communicable disease.

That last category matters because it covers quarantine even when you have not been diagnosed. Mere exposure is enough if a health authority says you should stay home.

Notice and Documentation Your Employer Can Require

For a foreseeable absence like a scheduled surgery or recurring therapy, an employer can require up to seven days’ advance notice. When the need is unexpected, you just have to notify the employer as soon as practicable, using whatever call-in process the company normally uses.³

Documentation is only allowed if the absence lasts more than three consecutive days. Acceptable documentation can include a note from a healthcare provider, paperwork from a court or victim services organization, or a statement from a government official in the case of a public health closure. You have up to 15 days after the request to provide it. Two important limits: the employer cannot demand a diagnosis or detailed medical information, and if getting the documentation costs money, the employer has to reimburse you. Anything the employer does collect must be kept confidential and stored separately from your main personnel file.

What Happens to Unused Hours

Unused sick time carries over from one year to the next, but the carryover cap matches the annual usage cap: up to 72 hours for employees at larger businesses, up to 40 hours at small businesses.⁴ Even with carryover, you cannot use more than your annual cap in a single year.

Employers can skip the accrual math by frontloading the full annual allocation at the start of each benefit year. An employer that frontloads does not have to allow carryover and does not have to pay out unused hours at year end.³

Michigan law does not require employers to pay out unused sick time when an employee resigns or is terminated.⁴ Some employers include payout provisions in their handbooks, but that is a policy choice, not a legal obligation.

Protection Against Retaliation

An employer cannot take adverse action against you for using earned sick time in a way the law permits. Firing, demoting, cutting hours, and issuing disciplinary points are all prohibited when the reason is that you used sick time you were entitled to.³

Point-based attendance systems, where absences trigger progressive discipline, run into this protection directly. Under the ESTA, those systems cannot count sick time taken for a qualifying reason as an absence that leads to discipline, unless the employee failed to follow the written notice procedures. Even an employee who mistakenly but in good faith alleges a violation is protected. The law does allow adverse action if an employee uses sick time for a purpose that does not qualify.

Penalties and How to File a Complaint

An employer that fails to provide earned sick time faces a $1,000 administrative fine per violation, plus a potential civil fine of up to eight times the employee’s normal hourly wage. Failing to display the required workplace poster carries a separate $100 fine for each violation.³

If you believe your rights have been violated, you can file a complaint with the Michigan Department of Labor and Economic Opportunity. If an investigation finds a violation, the state can order payment of the withheld sick time, damages, back pay, and reinstatement if you lost your job. Employers must give written notice of ESTA rights to each employee at hiring, or within 30 days of the law’s effective date, whichever is later.

How Michigan Sick Time Works With Federal FMLA

The federal Family and Medical Leave Act provides up to 12 weeks of unpaid, job-protected leave per year, but only at employers with 50 or more employees within 75 miles, and only for workers employed at least 12 months and 1,250 hours.⁵ Michigan’s ESTA covers employers of any size and has no minimum tenure requirement beyond the 120-day waiting period for usage.

When both laws apply, they generally run together. An employer can require you to use your accrued Michigan sick time during an FMLA absence, so those hours count against both balances. The effect is that FMLA leave becomes partially paid.

The reasons that qualify differ, though. FMLA requires a “serious health condition,” which generally means inpatient care or continuing treatment. Michigan sick time kicks in for ordinary illnesses, a single doctor’s appointment, or a school meeting about your child’s health. For the routine absences that do not rise to the FMLA threshold, the ESTA is the protection that matters.

1
State of Michigan. Earned Sick Time Act – Effective Feb. 21, 2025
2
Michigan Legislature. Michigan Compiled Laws 408.962 – Definitions
3
State of Michigan. Earned Sick Time Act: Frequently Asked Questions
4
Michigan Legislature. Michigan Compiled Laws 408.963 – Earned Sick Time Act
5
U.S. Department of Labor. Family and Medical Leave