Resource Aid Center

7 min read · Last updated September 18, 2026

The Family and Medical Leave Act (FMLA) caps job-protected leave at 12 weeks in any 12-month period, but the Americans with Disabilities Act’s (ADA) separate reasonable-accommodation obligation does not expire when that leave does, and can require an employer to hold a job open well past the 12-week mark if doing so does not create undue hardship.

In this article

• The first 24 hours: make the request, in some form, now
• What actually activates: an obligation FMLA doesn’t cover
• The mistake that costs people their job
• What to do at 30, 60, and 90 days
• Frequently asked questions

James’s 12 weeks of job-protected leave under the FMLA were set to run out on a Tuesday, and his cardiologist still had him out of work for three more months of recovery. The Monday before his leave ended, he sent his manager a two-line email asking for more time off and a temporary move to a desk-based role once he returned. That email is what kept his job, not because the law required the request to be in writing, but because his employer’s human resources (HR) team argued three months later that no such request had ever been made, and the email was the only proof that it had.

The first 24 hours: make the request, in some form, now

The moment it becomes clear that a diagnosis or recovery will outlast the available FMLA leave, three things need to happen before the leave date arrives, not after it.

First, name the specific limitation and what would help: more unpaid time, a modified schedule, reduced hours, or a temporary change in duties. Second, make that request to a manager or HR, in whatever form is easiest right now, since a request does not have to use any particular language. Third, follow up with a short written summary of what was asked for and when, even if the original request was made in a phone call or in person.

What actually activates: an obligation FMLA doesn’t cover

FMLA and the ADA solve two different problems, and confusing them is what leaves people believing their job protection ends exactly when their 12 weeks do. Under Section 825.702 of the Code of Federal Regulations (CFR), the federal rulebook that implements workplace leave law, FMLA entitles eligible employees to 12 weeks of leave in any 12-month period for their own serious health condition, while the ADA allows “an indeterminate amount of leave, barring undue hardship, as a reasonable accommodation” (29 CFR § 825.702). The same regulation also notes that FMLA requires an employer to maintain group health coverage during the leave, while the ADA does not require that unless other employees on leave receive the same treatment.

Question	FMLA	ADA reasonable accommodation
How much leave is available	Up to 12 weeks in a 12-month period	An indeterminate amount, limited only by undue hardship on the employer
What triggers it	A qualifying serious health condition, family need, or military-family event	Any physical or mental impairment that substantially limits a major life activity, once a request is made
Health coverage during leave	Employer must maintain group health coverage on the same terms as if actively working	Not required unless the employer extends the same treatment to other employees on leave
What happens when it ends	Job restoration guarantee ends once the 12 weeks are used	The accommodation obligation continues independently, for as long as it does not create undue hardship

Once a request for accommodation is made, in whatever form, federal regulation requires the employer to determine the appropriate accommodation by initiating “an informal, interactive process with the individual” to identify the precise limitation and the potential accommodations that could address it (29 CFR § 1630.2(o)(3)). That means an employer cannot simply deny a request outright without engaging in that back-and-forth first.

The mistake that costs people their job

If you assumed no protection exists once your 12 weeks of FMLA leave run out, that assumption is the single biggest reason people lose jobs they could have kept. The federal government’s own enforcement guidance on this topic states plainly that requests for reasonable accommodation “do not need to be in writing,” that an individual “may use ‘plain English’ and need not mention the ADA or use the phrase ‘reasonable accommodation,’” and that a family member, doctor, or other representative can make the request on the employee’s behalf (U.S. Equal Employment Opportunity Commission, Enforcement Guidance on Reasonable Accommodation and Undue Hardship).

The real mistake is not the format of the request. It is making no request at all, on the assumption that once FMLA leave is exhausted, nothing more can be done. The second most common mistake is waiting until the actual last day of FMLA leave to raise it, which leaves no time for the interactive process to run before the leave date arrives and gives an employer room to argue the request came too late to act on.

What to do at 30, 60, and 90 days

At 30 days before FMLA leave is set to run out, name the specific accommodation being requested and put a date on it in writing, even as a short follow-up email to a spoken conversation. At 60 days, if the employer has not responded or scheduled any discussion, follow up in writing again and ask directly what stage the interactive process is at. At 90 days, if the employer denies the request, ask for the specific reason in writing, since a bare denial with no stated reason is itself a sign the interactive process was not actually followed. If a formal medical certification is also part of this picture, the 15-day certification clock runs on its own separate timeline from the accommodation request. And if the underlying condition also affects short-term disability’s own elimination period, coordinate both processes rather than assuming one covers the other, since the first two weeks after a serious diagnosis already carry several separate clocks running at once.

Frequently asked questions

Does my job protection end the moment my FMLA leave runs out? Not necessarily. FMLA’s own job-restoration guarantee ends once the 12 weeks are used, but a separate obligation under the ADA can require more unpaid leave as a reasonable accommodation, as long as it doesn’t create undue hardship for the employer. The two are separate legal protections, not one continuous clock.

Do I have to put my accommodation request in writing for it to count? No. Federal guidance states plainly that requests do not need to be in writing and don’t need to mention the ADA or the word “accommodation” at all. In practice, a written request with a date on it is still the strongest evidence if an employer later disputes whether or when a request was made.

What is the “interactive process” my employer has to go through? Once an accommodation request is made, federal regulation requires the employer to engage in an informal, back-and-forth process to identify the specific limitation and the accommodations that could address it, rather than simply approving or denying the first request with no discussion.

Can someone else request an accommodation for me if I can’t do it myself? Yes. A family member, a treating doctor, or another representative can make the request on the employee’s behalf. The employee can still decline an accommodation they don’t actually need or want.

Is there a limit to how much extra leave the ADA can require beyond my 12 weeks of FMLA? The ADA does not set a fixed cap the way FMLA does. Instead, additional leave is required as a reasonable accommodation up to the point where it would create undue hardship for the employer, which is decided case by case rather than by a set number of weeks.