Your employer can cut your hours while you are on light duty, but only for specific reasons, and several federal laws limit when those cuts are legal. Whether an employer can reduce your hours during a light-duty assignment turns on why the reduction happened: a genuine medical restriction, a real operational limit, or something that looks like punishment for reporting an injury, asking for an accommodation, or taking protected leave. The first two can be lawful. The third is not.
Legitimate Reasons an Employer Can Reduce Light-Duty Hours
The clearest justification is your own medical documentation. If your doctor limits you to six hours a day or restricts certain tasks, your employer can build your schedule around those limits. This is where specificity matters. A vague note saying “limit physical activity” invites disputes. A restriction reading “no lifting over 10 pounds, maximum 6-hour shifts” gives both sides a concrete framework, and a court will hold everyone to what the paperwork actually says.
An employer can also reduce hours when keeping you at full schedule would cause undue hardship. Under the ADA, undue hardship means significant difficulty or expense relative to the employer’s resources. The EEOC weighs the cost of the accommodation, the size and finances of the employer, and the effect on operations at your specific facility.1U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship Under the ADA A five-person business has a much easier time meeting that standard than a corporation with thousands of workers. Inconvenience is not enough; the employer needs to point to real financial or operational strain.
A third reason is a genuine shortage of suitable work. If your restrictions mean you can only perform certain tasks and only four hours of that work exists each day, the employer is not required to invent tasks to fill your regular schedule. Watch for stretching, though. If coworkers are doing work you could safely handle within your restrictions, the “no work available” explanation weakens fast.
What the ADA Requires Before Hours Are Cut
The ADA prohibits discrimination against qualified individuals with disabilities and requires reasonable accommodations unless the employer shows undue hardship.2Office of the Law Revision Counsel. 42 USC 12112 – Discrimination A modified or part-time schedule can itself be a reasonable accommodation. The EEOC has said explicitly that employers must allow one when needed, even if the company does not offer modified schedules to other employees.1U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship Under the ADA
The ADA does not guarantee you keep your pre-injury schedule if your medical restrictions genuinely prevent it. What it does guarantee is an interactive process. Your employer must work with you and your medical provider to find an arrangement that fits your limitations without causing undue hardship. Skipping that conversation and unilaterally slashing your hours is a red flag.
Employers that already run a light-duty program face a further constraint. If the company reserves certain positions for light-duty workers, the ADA may require reassigning you to a vacant light-duty position rather than reducing your hours, as long as you can do the work and the reassignment does not cause undue hardship.
When an Hour Cut Becomes Illegal Retaliation
Most of these disputes are not really about whether an employer can adjust a schedule. They are about whether the schedule was adjusted because you filed a claim, asked for an accommodation, or took protected leave. If it was, that is retaliation, and it is illegal.
The ADA prohibits retaliation against anyone who has opposed a discriminatory practice, filed a charge, or participated in an ADA investigation. It also makes it unlawful to coerce, intimidate, or interfere with anyone exercising their ADA rights.3Office of the Law Revision Counsel. 42 USC 12203 – Prohibition Against Retaliation and Coercion Requesting a reasonable accommodation is itself protected activity. Hours cut shortly after that request can help establish a retaliation claim on timing alone.
The FMLA has its own anti-retaliation provision. Employers cannot interfere with, restrain, or deny FMLA rights, or discriminate against anyone for exercising them.4Office of the Law Revision Counsel. 29 USC 2615 – Prohibited Acts The Department of Labor gives a pointed example: an employee returns from FMLA leave for migraine headaches, and her manager reduces her schedule from 40 to 20 hours per week. The DOL calls this prohibited retaliation.5U.S. Department of Labor. Retaliation The DOL has also identified changing the number of shifts assigned to an employee as a potential FMLA violation.6U.S. Department of Labor. Fact Sheet 28 – The Family and Medical Leave Act
Workers’ compensation retaliation rules vary by state, but nearly every state prohibits adverse action against workers who file injury claims. An adverse action is anything that would discourage a reasonable employee from asserting their rights, and cutting someone’s hours in half after they report an injury fits comfortably in that category.5U.S. Department of Labor. Retaliation
Light Duty You Can Refuse
If your injury happened at work and qualifies as a serious health condition, workers’ comp leave and FMLA leave can run at the same time. When your doctor clears you for light duty, your employer can offer the position, but you are not required to accept it. Federal regulations say the employee “is permitted but not required to accept” a light-duty offer during a workers’ comp absence that overlaps with FMLA leave.7eCFR. 29 CFR 825.702 – Interaction With Federal and State Anti-Discrimination Laws
There is a tradeoff. Declining light duty during that overlap may cost you workers’ comp wage-replacement payments depending on your state’s rules. But your FMLA entitlement stays intact. You can remain on unpaid FMLA leave until you can return to your original job or until the 12-week period runs out.7eCFR. 29 CFR 825.702 – Interaction With Federal and State Anti-Discrimination Laws
Two related points matter. Your employer cannot condition your job on accepting light duty instead of taking FMLA leave; acceptance must be voluntary and uncoerced.8eCFR. 29 CFR 825.220 – Protection for Employees Who Request Leave or Otherwise Assert FMLA Rights And time you spend on light duty does not count against your 12 weeks of FMLA leave, so if the assignment does not work out, the rest of your entitlement is still there.
The FMLA itself also allows reduced-schedule leave when medically necessary.9Office of the Law Revision Counsel. 29 USC 2612 – Leave Requirement If your condition requires fewer hours, intermittent FMLA leave can cover the gap.
What Cut Hours Do to Your Pay and Benefits
Fewer hours mean less pay, and that is often where the real damage lands. For work-related injuries, temporary partial disability benefits through workers’ comp may cover part of the gap. Most states pay roughly two-thirds of the difference between your pre-injury average weekly wage and what you now earn on light duty, subject to a state-specific weekly cap. If you were earning $1,200 a week before your injury and now earn $700 on reduced hours, you would typically receive about $333 a week in partial disability benefits on top of the $700. Caps and eligibility differ by state, so check with your state workers’ comp agency.
Health insurance is the other pressure point. Under the Affordable Care Act, employers subject to the employer mandate must offer coverage to employees averaging at least 30 hours a week.10Internal Revenue Service. Identifying Full-Time Employees If a light-duty schedule drops you below that line, an employer might argue you no longer qualify. ERISA Section 510 pushes back: it is illegal to reduce hours for the purpose of preventing an employee from receiving benefits owed under an employee benefit plan.11Office of the Law Revision Counsel. 29 USC 1140 – Interference With Protected Rights If your hours were cut specifically to knock you off the health plan, that is its own claim.
Even without bad motive, losing coverage during a recovery is serious. Before you accept a light-duty offer, ask HR in writing how the schedule affects your eligibility for health, dental, and retirement benefits, and get the answer in writing too.
Workers whose hours are involuntarily reduced may also qualify for partial unemployment insurance in most states. The programs are designed for exactly this situation: you still have a job, but you are earning significantly less. Eligibility rules vary, and some states set an earnings ceiling, but if the cut was not your fault, it is worth filing. Most states also waive job-search requirements because the employer expects you back at full hours. Your state unemployment office can give you the specifics.
If You’re Covered by a Union Contract
A collective bargaining agreement governs much of what your employer can do with your schedule during light duty. Some agreements require mutual agreement between the employer and the union before hours change. Others specify that light-duty assignments cannot result in reduced pay. The details depend entirely on what your union negotiated.
Do not assume your CBA guarantees hours. Some agreements explicitly disclaim any guarantee for light-duty workers. The U.S. Postal Service’s agreements, for example, state that light-duty provisions “do not guarantee any employee who is on a light duty assignment any number of hours of work per day or per week,” even while requiring management to give “greatest consideration” to employees needing light duty.12United States Postal Service. Employee and Labor Relations Manual – 355 Light Duty Assignments Yours may read very differently. Read it carefully or ask your union steward.
If your employer violates the CBA, the standard remedy is a grievance through the union. That process is usually faster and cheaper than a lawsuit, and labor arbitrators tend to take scheduling provisions seriously.
What to Do If Your Hours Were Cut Unfairly
Start with the timeline. Write down when you reported your injury, when you requested light duty, when the hour reduction started, and what reasons your employer gave. Save emails, texts, and copies of medical documentation. The strongest retaliation cases rest on a clear paper trail showing the sequence of events.
Review your medical restrictions against your new schedule. If your doctor’s note supports full-time work within certain physical limits and your employer cut your hours anyway, that disconnect is powerful evidence. Ask your doctor for specific, detailed restrictions rather than general guidance.
If you are in a union, file a grievance. If you believe the reduction violates the ADA, file a charge of discrimination with the EEOC. A charge is a signed statement asserting employment discrimination, and you must file one before you can bring an ADA lawsuit.13U.S. Equal Employment Opportunity Commission. Filing a Charge of Discrimination For workers’ comp retaliation, contact your state’s workers’ comp agency or labor department.
Filing Deadlines
Time limits are strict, and missing one can end your claim. For EEOC charges, you generally have 180 calendar days from the discriminatory act. The deadline extends to 300 days if your state has its own agency enforcing a similar anti-discrimination law, which most states do.14U.S. Equal Employment Opportunity Commission. Time Limits for Filing a Charge Weekends and holidays count toward the deadline, though if the last day falls on one, you have until the next business day. Workers’ comp retaliation deadlines vary by state and are often much shorter, sometimes as little as 30 to 90 days.
Check for an Arbitration Clause
Look at your employment agreement for a mandatory arbitration clause. Many employers require disputes to go through private arbitration instead of court, and these clauses are generally enforceable for hour reduction and accommodation disputes. The main exception covers claims involving sexual harassment or sexual assault, which the Ending Forced Arbitration Act exempts from mandatory arbitration. For other employment claims, including ADA and FMLA disputes, arbitration clauses usually stand unless a court finds the specific agreement unconscionable. Knowing whether you signed one shapes your strategy, so check your onboarding paperwork before you plan your next step.