ADA Accommodation Denial: How to Legally Deny Requests Without Liability

6/2/2026

Employers are allowed to say no. The ADA does not require every requested accommodation to be granted — it requires a good-faith interactive process and a reasonable accommodation where one exists. The problem is that most denials are legally sound in substance and indefensible in execution.

Quick answer: There are four lawful grounds for denying an accommodation request: the individual is not a qualified individual with a disability, the requested accommodation would not enable performance of essential functions, it would impose an undue hardship, or it would eliminate an essential function or create a direct threat. Each requires a specific evidentiary record. A denial without that record is a charge waiting to happen.

The Four Lawful Grounds

Ground	What You Must Establish	Difficulty
1. Not a qualified individual with a disability	Either no impairment substantially limiting a major life activity, or the individual cannot perform essential functions with or without accommodation	High — the disability threshold is construed broadly
2. Accommodation would not be effective	The requested change would not actually enable performance of the essential functions	Moderate — but you must then look for one that would
3. Undue hardship	Significant difficulty or expense, judged against the employer's overall resources	Very high for most employers
4. Elimination of an essential function or direct threat	The accommodation would remove a function that is fundamental, or would create a significant risk of substantial harm that cannot be reduced	Moderate to high; direct threat requires an individualized, evidence-based assessment

Note what is not on this list: cost alone in a large organization, employee morale, fairness to coworkers, precedent concerns, a general policy against remote work, or "it wouldn't be practical." None of these is a legal basis for denial standing alone.

Ground 1: Not a Qualified Individual

Two separate questions live here. First, is there a disability? Since the ADA Amendments Act, this analysis should be straightforward and not the focus of the inquiry — episodic conditions in remission count when active, mitigating measures are disregarded, and the list of major life activities is broad. Do not build a denial on the theory that the condition is not serious enough.

Second, can the individual perform essential functions with or without accommodation? This is where legitimate denials live — and it depends entirely on how well you have defined essential functions. See our guide on what ADA-compliant job descriptions must include.

Ground 2: The Accommodation Would Not Be Effective

This is a legitimate but incomplete ground. If the requested accommodation would not enable performance, the employer's obligation does not end — it shifts to identifying one that would. A denial on this basis must be accompanied by evidence that you looked for alternatives, including reassignment.

The correct output is rarely "denied." It is usually "denied as requested; alternative approved."

Ground 3: Undue Hardship — The Standard Employers Overestimate

Undue hardship means significant difficulty or expense, evaluated against factors including the nature and net cost of the accommodation, the overall financial resources of the facility and of the employer as a whole, the number of employees, and the impact on operations.

Two things employers consistently get wrong:

• The comparison is to the employer's total resources, not the department's budget. A $2,000 accommodation is not an undue hardship for a company with $80 million in revenue because a manager's cost center is tight.
• It must be documented with evidence. Cost figures, coverage analysis, operational data. An assertion that "it would disrupt the team" carries no weight without proof.

Undue hardship can also be non-financial — a fundamental alteration of the nature of operations, or a genuine inability to maintain safety or service standards. But those claims require the same evidentiary rigor. Work through our undue hardship analysis framework and evaluation guide before claiming it.

Ground 4: Direct Threat

An employer may deny an accommodation, or exclude an individual, where they pose a direct threat — a significant risk of substantial harm to the health or safety of the individual or others that cannot be eliminated or reduced by reasonable accommodation.

The assessment must be individualized and based on reasonable medical judgment relying on the most current medical knowledge or the best available objective evidence. Four factors: duration of the risk, nature and severity of the potential harm, likelihood the harm will occur, and imminence of the harm.

Direct threat is the most misused ground in ADA practice. Generalized safety concerns, stereotypes about a condition, or an employer's discomfort do not satisfy it.

What a Defensible Denial File Contains

40. A job description predating the request that accurately identifies essential functions.
41. A record of the interactive process — dates, participants, what was discussed, what the employee proposed.
42. Medical documentation obtained (if any) and how it was evaluated, stored in the confidential medical file.
43. A written list of every accommodation considered, including options the employer generated independently, with the reason each was rejected.
44. Evidence supporting the specific ground — cost data for hardship, medical evidence for direct threat, function analysis for effectiveness.
45. Documented consideration of reassignment to a vacant position for which the employee is qualified.
46. The written denial communication to the employee.
47. An open door — an express statement that the employee may return with new information.

Denial Letter Language

A defensible denial letter does four things: it states the decision plainly, ties it to a specific ground, shows the work, and keeps the process open.

"Thank you for your accommodation request of [date], in which you asked for [request]. We reviewed the essential functions of your position, the information provided by your health care provider, and the alternatives we discussed on [dates].

We are not able to approve [request] because [specific ground with supporting reasoning]. In reaching this decision we also considered [alternative 1], [alternative 2], and [alternative 3]. We were unable to approve those because [reasons]. We are approving [alternative, if any], effective [date].

This decision is based on the information currently available. If your circumstances change, if your health care provider identifies an option we have not considered, or if you would like us to review vacant positions for which you may be qualified, please contact [name] and we will reopen the discussion."

What not to include: medical details, comparisons to other employees, editorial commentary about the request, or language suggesting the request itself was unwelcome.

Six Ways Employers Turn a Valid Denial Into Liability

• Denying without ever meeting. Failure to engage in the interactive process is an independent violation in many jurisdictions.
• Revising the job description after the request. Contemporaneous documents are credible; retrofitted ones are devastating.
• Never considering reassignment. It is the accommodation of last resort, and it is mandatory to consider.
• Applying a blanket policy. "We don't allow remote work / modified schedules / leave beyond 12 weeks" is per se problematic.
• Adverse action following the denial. A performance write-up two weeks after a denial is a retaliation claim.
• Failing to communicate the decision at all is worse than denying it.

Frequently Asked Questions

Can we deny an accommodation because it is too expensive?

Only if the cost constitutes undue hardship measured against the employer's overall resources, documented with actual figures. For most employers and most accommodations, cost alone will not suffice. Tax credits and external funding must also be considered.

Do we have to grant the specific accommodation requested?

No. The employer may choose among effective accommodations. But the alternative must actually be effective for the employee's limitations, and the reasoning should be explained.

Can we deny leave as an accommodation because FMLA is exhausted?

No. FMLA exhaustion is not an ADA defense. Additional leave may be a reasonable accommodation, and a denial must rest on undue hardship or indefiniteness — documented individually.

What if other employees complain the accommodation is unfair?

Coworker morale is not undue hardship. Accommodations are individualized by design, and employers should address the perception through general messaging rather than by disclosing the employee's situation.

Must we tell the employee the reason for the denial?

The ADA does not expressly require it, but doing so in writing is strongly advisable. Unexplained denials are the ones that become charges.

Get the Analysis Right Before the Answer

A denial is only as strong as the process that produced it. The employers who defend these decisions successfully are the ones who documented the analysis while they were doing it — not after they received the charge.

The ADA Training & Certification Program covers qualified-individual analysis, essential functions, undue hardship, direct threat, and denial documentation. For teams handling requests that overlap with leave, see the Advanced Issues in FMLA, ADA, and Leave Management Certificate Program.

👉 See the ADA Training & Certification Program →

Additional resources: ADA Compliance FAQs | ADA Compliance Requirements for Employers | Glossary of ADA Terms