Short answer: Yes, but only after the deadline passes and you have done your part. If an employee never returns requested FMLA paperwork, the leave is not FMLA-protected. Before counting absences as unexcused, you must give written notice, allow at least 15 calendar days, and warn of the consequences.
Few FMLA situations frustrate HR more than the blank stare after you hand over a certification form. The absences pile up, the manager wants an answer, and the paperwork simply never comes back. Before you code those days as unexcused, it pays to walk through the rules carefully, because most FMLA interference claims in this area turn on what the employer did or did not do.
Key takeaways
- An employee who never returns a requested certification has not given you an "incomplete" form; under 29 CFR 825.305(c) it is a failure to provide certification.
- Employees get at least 15 calendar days from receipt of the request, longer if they make diligent, good-faith efforts and still cannot meet the deadline.
- You must tell the employee, in writing and at the time of the request, what happens if the form is not returned. Skip this step and you may lose the right to deny leave.
- Once an employee tells you they need leave now for a potentially qualifying reason, you cannot say "no leave until you return the paperwork." The leave is provisionally protected while the certification window is open.
- Absences during the 15-day window are generally protected. Denial applies to leave after the deadline passes, and to all of the leave if the certification is never produced.
- Statements like "my anxiety is so bad I can't leave the house" may trigger ADA duties and may also be the very reason the employee cannot comply on time.
What are the FMLA notification and paperwork (certification) requirements?
The FMLA puts notice duties on both sides, and the employer's duties start the moment it learns an absence may qualify. The employee does not have to say "FMLA." Once they share enough information to suggest a potentially qualifying reason, the burden shifts to you to ask questions and start the process (29 CFR 825.302(c) and 825.303(b)).
| Notice | When it is due | Regulation |
|---|---|---|
| Eligibility notice Form WH-381 | Within 5 business days of learning of the need for leave, absent extenuating circumstances | 29 CFR 825.300(b) |
| Rights and responsibilities notice Form WH-381 | With the eligibility notice; it must spell out certification requirements and the consequences of not meeting them | 29 CFR 825.300(c) |
| Request for medical certification Form WH-380-E (employee's own condition) or WH-380-F (family member's condition) | At the time of the employee's notice or within 5 business days (for unforeseen leave, within 5 business days after leave begins) | 29 CFR 825.305(b) |
| Notice of the consequences of not returning certification | At the same time you request certification | 29 CFR 825.305(d) |
| Notice of an incomplete or insufficient certification | In writing, stating what is missing; the employee gets 7 calendar days to cure | 29 CFR 825.305(c) |
| Designation notice Form WH-382 | Within 5 business days after you have enough information to decide whether the leave qualifies | 29 CFR 825.300(d) |
The employee's obligations
Foreseeable leave: give at least 30 days' notice, or as soon as practicable if 30 days is not possible (29 CFR 825.302).
Unforeseeable leave: give notice as soon as practicable, usually by following your normal call-in procedures absent unusual circumstances (29 CFR 825.303). A spouse, adult family member or other responsible party may give notice if the employee cannot.
Certification: return a complete and sufficient certification within 15 calendar days of receiving the request, "unless it is not practicable under the particular circumstances to do so despite the employee's diligent, good faith efforts" (29 CFR 825.305(b)).
"Not returned" is different from "incomplete"
This distinction matters. If a form comes back with gaps, you must identify the deficiencies in writing and allow 7 calendar days to fix them. If the form never comes back at all, the regulation treats it as a failure to provide certification, and you move straight to the consequences in 29 CFR 825.313.
Can you say "no leave until you return the paperwork"?
No. Once an employee tells you they need leave now, or are already out, for a reason that may qualify under the FMLA, you cannot make the leave itself wait on the certification. The certification process runs alongside the leave, not in front of it.
The regulations build the timeline this way on purpose. An employee has at least 15 calendar days to return the form, and the denial provisions in 29 CFR 825.313 apply only to leave taken after that window closes without a good reason. While you wait for the form, or while you seek clarification or a second opinion, the employee is provisionally entitled to FMLA benefits (see 29 CFR 825.307(b)).
In practice, that means:
Do not tell an employee who calls out with a serious medical issue to "come back to work until we get the forms."
Do not assess attendance points, discipline, or termination for absences inside the certification window.
Do not refuse to start a leave that is needed right now because the HR packet is still on the employee's kitchen table.
Do make it clear, in writing, that the leave is provisionally approved and will be denied if certification is not returned by the deadline.
The one narrow exception is foreseeable leave, covered next. Even there, the employer's right is to delay FMLA coverage when the employee had plenty of time and failed to act, not to bar an employee from taking leave the moment they say they need it.
What happens when FMLA paperwork is late or never returned?
The answer depends on whether the leave was foreseeable or unforeseeable, and on whether the employee ever turns the form in. 29 CFR 825.313 sets the rules
| Situation | What the employer may do | Absences inside the 15-day window |
|---|---|---|
| Foreseeable leave, certification late without good reason (825.313(a)) | Deny FMLA coverage until the certification is provided | Protected |
| Unforeseeable leave, certification late without good reason (825.313(b)) | Deny FMLA protection for leave after day 15 until a sufficient certification arrives | Protected |
| Certification never provided, no extenuating circumstances (825.313(b)) | Treat the leave as not FMLA leave and apply the normal attendance policy | Generally not FMLA leave once it is clear the form will never come |
| Late, but the employee made diligent, good-faith efforts (825.305(b)) | Extend the deadline; denial is not appropriate | Protected |
How the regulation's own example works
The Department of Labor gives a simple illustration. If an employee has 15 days to return a certification and takes 45 days without a sufficient reason, the employer can deny FMLA protection for the 30 days after the deadline, if the employee took leave during that period. The first 15 days stay protected. Once the certification arrives, protection resumes going forward.
When can you finally count absences as unexcused?
You are on the firmest ground when all of the following are true:
You gave the eligibility and rights and responsibilities notices on time.
Your written certification request stated the due date and the consequences of missing it.
At least 15 calendar days have passed since the employee received the request, and you can prove the receipt date.
The employee has not shown diligent, good-faith efforts or an extenuating circumstance, such as hospitalization or a provider who has not completed the form. Confirm this with the employee's supervisor, who may have heard about a delay that never reached HR.
You sent a follow-up reminder and gave a short, final deadline.
You considered whether the ADA or a state leave law independently protects the absence.
Courts have sided with employees when the employer skipped the consequences warning. In one widely discussed Sixth Circuit case involving FedEx, the employer could not rely on the missing certification because it had not told the employee that failure to return the form would lead to denial of leave.
Common scenarios: how should you handle them?
Scenario 1: The employee goes silent
You mailed the packet, called twice, and heard nothing. Silence is not the same as refusal, so build a record before acting.
Confirm receipt. The 15-day clock starts when the employee receives the request. Use email with a read receipt, certified mail, or hand delivery, and keep proof.
Use every reasonable channel. Call, email, text if that is how the employee normally communicates, and mail to the address on file. Note dates and times.
Send a day-15 letter. State that the certification has not been received, set a short final deadline (often 5 to 7 more days), and repeat the consequences: the leave will be denied and the absences handled under the attendance policy.
Check with the supervisor before acting. Employees often update their direct manager, not HR, by text, a voicemail, or a hallway comment such as "my doctor's office is backed up." Ask the supervisor, and anyone else the employee normally reports absences to, whether the employee has said anything about the paperwork or a delay. Communication to a supervisor is notice to the company, so a "no response" finding is only as good as this check. Document who you asked, when, and what they said.
Check for a reason behind the silence. Is the employee hospitalized? Did a family member call in? Under 29 CFR 825.303(a), a spokesperson may give notice for an employee who cannot. A silent employee who is in the ICU is not acting in bad faith.
Then decide. If the final deadline passes with no contact and no sign of incapacity, you may deny FMLA protection and apply your normal policy, including any no-call/no-show rules, consistently with how you treat others.
Scenario 2: "I just need a little more time"
The employee is responsive and friendly, but every check-in ends with "my doctor hasn't filled it out yet." The regulation protects diligent, good-faith efforts, so your job is to separate genuine obstacles from stalling.
Ask specific questions. When did you give the form to your provider? When is your appointment? Has the office given you a date?
Grant a reasonable extension in writing when the answers show real effort, and put the new date and consequences in the letter.
Offer practical help. With the employee's permission, the form can be faxed or emailed directly from the provider. Note that under 29 CFR 825.307(a), only an HR professional, leave administrator, or management official other than the employee's direct supervisor may contact the provider, and only to clarify or authenticate a submitted form.
Know when to stop extending. Repeated extensions with no evidence of effort, such as no appointment ever scheduled, can support a finding that the employee has not acted diligently. Document each extension and each answer.
Do not deny leave in the meantime. Absences while a good-faith extension is open remain provisionally protected.
Scenario 3: The veiled disability reference
The employee says something like, "I have so much anxiety right now, I can't even leave my house," when asked about the paperwork. Treat that sentence as information, not an excuse.
It may be FMLA notice in itself. Anxiety severe enough to keep someone home may be a serious health condition, and the statement may explain why the employee cannot get to a provider. That points toward the "not practicable despite diligent, good-faith efforts" standard.
It may trigger the ADA. An employee does not need to say "accommodation" or "disability." A statement linking a medical or mental health condition to difficulty meeting a work requirement can start the interactive process. A deadline extension or a different way to complete the process can be a reasonable accommodation.
Offer concrete alternatives. Telehealth appointments, a provider who can complete the form remotely, sending the form directly to the provider, letting a family member deliver or return paperwork, and more time.
Respond in writing with empathy. Acknowledge what they shared, explain the options, set a reasonable new deadline, and ask them to tell you if they need anything else to complete the process.
Do not discipline on the original deadline. Counting these absences as unexcused right after this kind of disclosure invites both FMLA interference and ADA failure-to-accommodate claims. Talk with counsel before taking adverse action.
Scenario 4: The employee is already on leave
When the employee is already out, they are usually dealing with the condition itself, which makes good-faith delay more likely.
The leave started; you cannot pause it pending paperwork. Provisionally treat it as FMLA leave and designate it once you have enough information.
Send the certification request within 5 business days after the leave begins, with the due date and consequences.
If the deadline passes, follow the Scenario 1 steps before denying protection, and make the denial prospective, from the end of the window forward, unless the certification is never provided at all.
Separately, you may require periodic reports on the employee's status and intent to return (29 CFR 825.311). A missed status report is not the same as a missed certification, so keep the two requests distinct.
If the employee returns to work without ever certifying, review whether the absences can be recoded under your attendance policy, and do it consistently and promptly, not months later.
Scenario 5: A scheduled leave is coming up
Planned surgeries and expected births are foreseeable leave, and this is where employers have the most room to require paperwork in advance.
Request certification as soon as the employee gives notice, so the 15 days ends well before the leave starts.
If the employee gave 30 or more days' notice and does not return the form by the deadline without a good reason, 29 CFR 825.313(a) allows you to deny FMLA coverage until it arrives. Put that consequence in the request letter.
Before the leave date, send a reminder that coverage depends on the form. Do not wait until the employee is already out.
If the employee says the surgery moved up, or they now need leave immediately, the leave becomes unforeseeable, and the provisional protection described above applies.
Even with foreseeable leave, avoid telling an employee they cannot have their surgery or delivery on schedule. The remedy is denying FMLA coverage for a defined period, not blocking the medical event.
Checklist: before you count FMLA absences as unexcused
FMLA Paperwork Not Returned: Sample Follow-Up and Denial Letters
Use these as starting points and adapt them to your policies, state law and the facts. Send each one by a method that proves delivery, and keep a copy in the leave file.
FMLA Certification Follow-Up Letter Template (Paperwork Past Due)
Use this letter when the 15-day deadline has passed and you have not received the employee's FMLA medical certification.
Subject: Your FMLA medical certification is past due
Dear [Employee Name],
On [date of receipt], you received a request to return a medical certification (Form [WH-380-E / WH-380-F]) supporting your request for leave beginning [leave start date]. The certification was due on [original due date]. As of today, we have not received it.
We want to make sure you have every opportunity to complete this process. Please return the completed certification by [new deadline, typically 5 to 7 calendar days out]. You or your health care provider may send it to [fax / email / address].
If you are having trouble getting the form completed, for example because of a delayed appointment or a health condition that makes this difficult, please contact me at [phone / email] before the deadline. We will work with you, which may include additional time or other ways to complete the process.
If we do not receive the certification or hear from you by [new deadline], your absences after [original due date] will not be protected under the FMLA. They will be handled under our attendance policy, which may result in discipline up to and including termination of employment.
Sincerely, [Name, Title]
rk with you, which may include additional time or other ways to complete the process.
FMLA Denial Letter Template for Unreturned Medical Certification
Use this letter only after the extended deadline has passed with no certification and no good-faith reason for the delay.
Subject: FMLA leave denied: certification not received
Dear [Employee Name],
We requested a medical certification on [date of receipt], followed up on [follow-up date(s)], and extended your deadline to [final deadline]. We have not received the certification or any information about why it could not be provided.
As a result, your absences on [dates] are not designated as FMLA leave, under 29 CFR 825.313. These absences will be handled under our attendance policy.
If you have information about circumstances that prevented you from returning the certification, or if you need an accommodation, please contact [name] at [phone / email] by [date]. We will review anything you provide.
Sincerely, [Name, Title]
Before sending the denial letter, confirm you have checked with the employee's supervisor about any delays, reviewed any mention of a medical or mental health condition for ADA obligations, and spoken with counsel if termination is possible.
Frequently asked questions
How long does an employee have to return FMLA paperwork?
At least 15 calendar days from receiving the request. The employer may allow more time, and must allow more when the employee cannot meet the deadline despite diligent, good-faith efforts (29 CFR 825.305(b)).
Can I fire or terminate an employee for not returning FMLA paperwork?
Possibly, but not for absences inside the certification window, and only if you warned the employee in writing about the consequences when you requested the form. After a failed deadline with no good reason, the absences are not FMLA-protected and your normal attendance policy can apply. Check ADA and state law first.
Can I deny FMLA leave until the paperwork is returned?
Not when the employee needs leave now. The leave is provisionally protected while the certification is pending. For foreseeable leave, you can deny FMLA coverage if the employee misses the deadline without good reason, until the form is provided.
Is an unreturned form the same as an incomplete form?
No. An incomplete or insufficient form must be identified in writing, with 7 calendar days to cure. A form that never comes back is a failure to provide certification under 29 CFR 825.305(c).
Can I call the employee's doctor to get the form?
No, not to obtain a missing form. Employers may contact the provider only to authenticate or clarify a certification the employee has already submitted, and the contact cannot be made by the employee's direct supervisor (29 CFR 825.307(a)).
What if the employee says their anxiety or depression is why the form isn't back?
Treat it as possible notice of a serious health condition and a possible request for accommodation. Extend the deadline, offer alternatives such as telehealth or provider-direct submission, and begin the ADA interactive process before taking any disciplinary action.
Does the employee have to mention "FMLA" to be protected?
No. The employee only needs to give enough information to suggest the leave may qualify. It is then the employer's job to ask follow-up questions and send the required notices.
Does the 15-day FMLA deadline include weekends?
Yes. The deadline is 15 calendar days, so weekends and holidays count. The clock starts when the employee receives the request, not when you send it.
What if the employee's doctor won't fill out the FMLA form?
A provider's delay or refusal can be an extenuating circumstance, so do not deny leave automatically. Ask what the employee has done to get the form completed, extend the deadline when the effort is real, and suggest a different provider or a telehealth visit if the first office will not cooperate.
Do I have to use the DOL's WH-380-E and WH-380-F forms?
No. The Department of Labor's forms are optional. You may use your own form, but it cannot ask for more information than the regulations allow (29 CFR 825.306).
What should I do if a supervisor says the employee mentioned a delay?
Treat it as if the employee told HR. Notice to a supervisor is notice to the employer. Reach out to the employee, document the reason for the delay, and extend the deadline if the delay reflects a good-faith effort.
The bottom line
An unreturned FMLA certification can eventually justify treating absences as unexcused, but the regulations reward employers who are patient, documented and clear. Never hold leave hostage to paperwork, give the full 15 days and then some when the employee is trying, listen for disability cues, and put every deadline and consequence in writing.
This article is for general information only and is not legal advice. Many states and cities have their own leave, paid sick leave and disability laws that may protect an absence even when the FMLA does not. Consult employment counsel before disciplining or terminating an employee.
About CHRO, LLC
CHRO, LLC is an attorney-led fractional HR firm based in the Philadelphia suburbs. We help employers in Pennsylvania, New Jersey, Delaware, Maryland, New York and nationwide handle FMLA and ADA leave before it becomes a legal problem. As your Outsourced CHRO, we help you send the right notices on time, follow up on unreturned certifications, work through the ADA interactive process when an employee raises a health concern, and decide when absences can fairly be treated under your attendance policy. We provide employee relations and HR compliance support and deliver manager training so supervisors know to route every leave request, medical comment and "I need more time" straight to HR.
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