Substance use disorders are common among working adults. The 2025 National Survey on Drug Use and Health found 15.3% of people aged 12 or older — about 44.6 million — had a substance use disorder in the past year. Many held jobs the entire time.
This is why the most common practical objection to treatment isn’t cost or doubt about whether it works. It’s the paycheck. People delay for months assuming that asking for time off means announcing the problem to their boss.
That assumption is usually wrong. Federal law provides job-protected leave for substance use treatment, and it doesn’t require you to explain your diagnosis to your manager. This guide covers what’s protected, who qualifies, what you must disclose and your options if you fall outside it. This is general information, not legal advice — for your situation, consult an employment attorney or your state labor office.
If you or someone you know is in immediate danger, call 911 or go to the nearest emergency room. If you are in crisis or having thoughts of suicide, call or text the 988 Suicide & Crisis Lifeline at 988. The National Rehab Hotline at 866-210-1303 is for non-emergency information, support and referrals.
Does FMLA Cover Addiction Treatment?
Yes, and it’s written into the regulations. Under 29 CFR 825.119, substance use disorder can qualify as a serious health condition, and FMLA leave may be taken for treatment by a health care provider or a provider on referral from one.
One distinction in that regulation does the most work. FMLA covers absence for treatment; it doesn’t cover absence because of use. A residential program, an intensive outpatient program or ongoing appointments are protected. Missing a shift because you were too impaired to work isn’t, and never becomes protected retroactively.
The same regulation covers something people rarely realize they can use: you may take FMLA leave to care for a covered family member receiving treatment for substance use, and your employer may not act against you for doing it. If you’re the one driving someone to a program or holding the household together while they’re in residential care, that leave is available to you too.
Who Qualifies for FMLA Leave
Eligibility has three parts, and all three must be true. Per the Department of Labor’s FMLA Fact Sheet #28, you must:
- Have worked for your employer at least 12 months (not necessarily consecutive)
- Have at least 1,250 hours of service with that employer in the 12 months before your leave starts
- Work at a location where the employer has at least 50 employees within 75 miles
Covered employers include private employers with 50 or more employees, all public agencies, and public and private schools regardless of size. The 50-within-75-miles rule catches people out — a large national company with a small satellite office may not be covered at that location, so check rather than assume.
What FMLA Protects — and What It Doesn’t
Eligible employees have the right to up to 12 workweeks of unpaid, job-protected leave in a 12-month period, with group health insurance continuing as if you hadn’t taken leave. The DOL’s employee protections fact sheet uses inpatient treatment as a worked example, and notes an employer may not require you to stay on leave longer than you need — even if they hired a replacement for the full 12 weeks.
Leave need not be taken in one block. When medically necessary it can be intermittent or a reduced schedule, which is how ongoing outpatient treatment is usually handled.
Two limits deserve plain statement. Your employer can’t act against you for exercising your FMLA right to treatment — but an established policy allowing termination for substance use, applied consistently and communicated to all employees, can still apply. And requesting leave doesn’t erase discipline already in motion. If you’re in a formal process, get advice first.
What to Tell Your Employer (and What You Don’t Have To)
This is where most of the fear lives, and it’s largely unfounded. You don’t have to say the words “addiction” or “rehab” to your manager. What you owe your employer is enough information to recognize the leave may be FMLA-covered — and the first time you request leave, you need not mention the FMLA at all. A workable sequence:
- Tell HR rather than your manager, if your workplace has one. Leave requests are an HR process.
- Say you need medical leave for a serious health condition and expect to be out for a defined period. That’s sufficient.
- Give 30 days’ notice when the need is foreseeable, otherwise as soon as practicable.
- Expect a certification request from a health care provider supporting the leave.
Medical information tied to your leave stays confidential and separate from your personnel file, and substance use treatment records carry federal protection beyond ordinary medical privacy. Our page on whether calling a hotline is confidential covers the information-gathering side.
If You’re Not FMLA-Eligible
Falling outside the federal rules doesn’t mean you’re out of options. Several avenues are worth checking, often in combination:
- State leave laws. Several states have leave statutes with lower employer-size thresholds or shorter service requirements.
- Short-term disability. Coverage through work or a state program may replace part of your income.
- ADA reasonable accommodation. Time off for treatment or support meetings can be a reasonable accommodation for a qualifying employee, separate from FMLA.
- Internal employer policy. Many large employers exceed the federal minimum, employee assistance programs often coordinate leave confidentially, and accrued PTO has no eligibility test at all.
Format matters too. Evening and outpatient programs exist for people who can’t stop working, and medication-assisted treatment is generally compatible with a full-time job. How long treatment typically lasts and what to expect at a detox center will help you estimate how much leave to request.
Returning to Work
When FMLA leave ends, your employer must restore you to the same position or an equivalent one — virtually identical pay, benefits and terms. A quiet demotion on return isn’t lawful and is worth documenting.
Protections shift after treatment. Under the Americans with Disabilities Act, an employer may not discriminate against someone with a history of substance use disorder who is no longer engaging in illegal drug use, and alcohol use disorder is a covered condition. The ADA National Network notes current illegal drug use is excluded — the same treatment-versus-use line, in a different statute.
Talk Through Your Options
Sorting out which leave applies, what your employer offers and which treatment format fits your schedule is a lot to carry alone. The National Rehab Hotline is available 24/7 for information, guidance and referrals to local treatment resources. Call 866-210-1303 — free, confidential and non-emergency. Cost is the other question that stops people, and it has answers too: see paying for rehab without insurance and the substance abuse hotline for free and low-cost options.
Frequently Asked Questions
- Can I be fired for going to rehab?
If you’re FMLA-eligible, follow the notice and certification process, and the leave is for treatment, your employer can’t act against you for exercising that right. One exception matters: an established, consistently applied policy allowing termination for substance use can still apply, and discipline already underway doesn’t disappear because you requested leave. - Do I have to tell my employer I’m going to rehab?
You don’t have to name the condition — only give enough information for your employer to recognize the leave may be FMLA-covered, and the first time you request it you need not mention the FMLA by name. Certification from a health care provider may then be requested, and it goes to HR rather than your manager. - How long can I take off work for treatment?
Up to 12 workweeks of unpaid, job-protected leave in a 12-month period, taken all at once or — when medically necessary — in separate blocks or as a reduced schedule. - Is FMLA leave paid?
No, though group health insurance continues on the same terms. Many employers require or allow you to substitute accrued paid leave, and short-term disability or state paid-leave programs may replace part of your income. Check your handbook and your state program. - Can I take FMLA leave for someone else’s treatment?
Yes. The regulation allows FMLA leave to care for a covered family member receiving substance use treatment, and your employer may not act against you for taking it. The usual eligibility rules apply to you. - What if my employer is too small for FMLA?
Federal FMLA generally applies to private employers with at least 50 employees, and you must work at a site with 50 employees within 75 miles. Outside that, several states have leave laws with lower thresholds, many employers offer internal medical leave anyway, and evening or outpatient programs exist for people who can’t stop working.
To work out what your leave options actually are, call 866-210-1303 at any hour for support and treatment options in your area.
