The performance review used the words "attention to detail" twice. You have a diagnosis, a prescription and a sinking feeling that telling anyone would trade one problem for a bigger one.
**The short answer: you do not have to tell your employer anything, and the law protects you from being asked in almost every situation. The one reason to disclose is to get something in return: a reasonable accommodation. In California, an employer with five or more employees must provide one for a known mental disability unless it would cause undue hardship, must engage in a timely, good-faith interactive process when you ask, and may not retaliate against you for asking, whether or not the request is granted. Federal law imposes parallel duties on employers of fifteen or more. ADHD qualifies when it makes a major life activity difficult, judged as if you were not taking medication. This page tells you what to ask for, what to write, and what happens to the information.**¹ ² ³ ⁴
The rules, and where each one comes from
| Rule | What it says | Source |
|---|---|---|
| Who is covered | California's Fair Employment and Housing Act (FEHA) applies to employers "regularly employing five or more persons"; the federal ADA applies to employers with 15 or more employees. | Gov. Code §12926(d);¹ EEOC fact sheet⁴ |
| What counts | A mental disability is a mental or psychological disorder or condition that "limits a major life activity," and it limits one "if it makes the achievement of the major life activity difficult." The test is applied "without regard to mitigating measures, such as medications." California requires "a 'limitation' upon a major life activity," not the federal "substantial limitation," and "'working' is a major life activity." | Gov. Code §12926(j); §12926.1(c), (d)¹ |
| The duty to accommodate | It is unlawful for a covered employer "to fail to make reasonable accommodation for the known physical or mental disability of an applicant or employee" unless the accommodation would produce "undue hardship." | Gov. Code §12940(m)(1)² |
| No retaliation for asking | It is unlawful to "retaliate or otherwise discriminate against a person for requesting accommodation under this subdivision, regardless of whether the request was granted." | Gov. Code §12940(m)(2)² |
| The interactive process | The employer must "engage in a timely, good faith, interactive process with the employee or applicant to determine effective reasonable accommodations, if any," once you ask. | Gov. Code §12940(n)² |
| What an accommodation can be | Job restructuring, part-time or modified schedules, reassignment to a vacant position, modified equipment or devices, adjusted examinations, training materials or policies, "and other similar accommodations." | Gov. Code §12926(p)¹ |
| When you can be asked about it | Under federal guidance, an employer may ask medical questions in four situations: when you ask for an accommodation; after a job offer and before you start, if everyone in the job category is asked; during affirmative action for people with disabilities; and on the job "when there is objective evidence that you may be unable to do your job or that you may pose a safety risk because of your condition." | EEOC, 2016³ |
| Confidentiality | If you do disclose, the employer "must keep the information confidential, even from co-workers." | EEOC, 2016³ |
The decision, in three questions
- Is there something specific you need? If the answer is "to be judged more kindly," disclosure buys little; managers do not become better managers on receipt of a diagnosis. If the answer is "written instructions instead of verbal ones," "a quiet space for focused work," "a later start after my morning dose," or "a weekly ten-minute priorities check with my manager," disclosure is how the law gives you the right to ask for it.
- Can you get it without the word? Many ADHD accommodations are ordinary requests. Ask for the written instructions first, as a preference. Escalate to a formal request when a preference is refused or when your job is at risk.
- Is your job already at risk? A formal accommodation request made before a termination or a final warning changes the legal picture: the employer now has a known disability, a duty to accommodate, and a prohibition on retaliating for the request.² Made after, it is harder. If a review has already used the words, this is the moment.
What to write
Two paragraphs, in writing, to HR or your manager, kept in your own records.
I have a medical condition that affects [concentration / working memory / organization]. I am requesting reasonable accommodation under California law. Specifically: [list two or three]. I am happy to discuss alternatives that would work for the business.
I can provide a letter from my health care provider confirming the condition and the functional limitations if you need it.
You do not have to name ADHD in the request; you have to describe the limitation and ask. The step-by-step version, with the interactive-process meeting and the follow-up letter, is the printable ADHD work accommodations in California →. Federal guidance says the employer may ask you to put the request in writing, to describe generally how the condition affects your work, and may ask for a letter from your provider;³ your therapist or prescriber can write one that describes functional limits without your history. The Job Accommodation Network, a free service funded by the U.S. Department of Labor, lists accommodation ideas for ADHD by limitation and takes calls at 800-526-7234.⁵
Signs the process has gone wrong
- The request is met with silence for weeks. The process must be "timely."²
- You are asked for your full diagnosis and treatment history rather than your functional limitations.³
- Your schedule, duties or reviews get worse after you ask. That is the retaliation the statute names,² and it is documented by the paper trail you kept.
- You are told a small employer is exempt. FEHA's discrimination and accommodation duties apply to employers of five or more; harassment is prohibited in every workplace regardless of size.¹ ⁶
If any of these happens, the California Civil Rights Department takes complaints, generally within three years of the act.⁶ Statutes and agency guidance read on the operative text on September 5, 2026. This page describes the law; it is not legal advice.
Q&A
Q: Will my employer find out I take a stimulant? A: Not from an accommodation request: you describe functional limitations, not medication, and whatever you do disclose must be kept confidential, even from co-workers.³ Drug-testing programs have their own review step for prescribed medication; ask the program, not your manager, how it handles a valid prescription.
Q: Is an ADHD diagnosis automatically a disability under California law? A: No, and it does not need to be dramatic. The test is whether the condition makes a major life activity difficult, judged as if you were unmedicated, and working itself is a major life activity.¹ A provider's letter states the limitation; the diagnosis alone does not.
Q: I am a contractor or gig worker. A: The accommodation duty in §12940(m) runs to applicants and employees of a covered employer.² Whether you are one is a misclassification question for an employment attorney. The practical route to accommodations is the same: describe what you need in writing and keep the copy.
Q: Should I disclose in the interview? A: Nothing requires it, and an employer may not ask applicants about the existence or nature of a disability before an offer.⁴ If you need an accommodation for the interview itself, you may request one for that alone.
Ready to find a therapist who can write the letter and build the systems the accommodation assumes? Filter by approach, schedule and payment route → · Every adult ADHD decision on one map → · Therapy that works for adult ADHD →
Sources
- California Government Code §12926, "Definitions," subdivisions (d) employer, (j) mental disability, (p) reasonable accommodation; as amended by Stats. 2025, ch. 321 (SB 477), effective January 1, 2026 — law.justia.com; §12926.1, legislative findings, subdivisions (c) and (d); as amended by Stats. 2022, ch. 28 (SB 1380) — law.justia.com.
- California Government Code §12940, subdivisions (m) reasonable accommodation and retaliation for requesting it, (n) interactive process; as amended by Stats. 2024, ch. 877 (SB 1100), effective January 1, 2025 — law.justia.com.
- U.S. Equal Employment Opportunity Commission, "Depression, PTSD, & Other Mental Health Conditions in the Workplace: Your Legal Rights," December 12, 2016 — eeoc.gov.
- U.S. Equal Employment Opportunity Commission, "Fact Sheet: Disability Discrimination," January 15, 1997 — "The ADA covers employers with 15 or more employees" — eeoc.gov.
- Job Accommodation Network, "Attention Deficit/Hyperactivity Disorder (AD/HD)," accommodation ideas by limitation; 800-526-7234 — askjan.org.
- California Civil Rights Department, "Employment" — "It is illegal for employers of 5 or more employees to discriminate"; "Harassment is prohibited in all workplaces, even those with fewer than five employees"; complaints "within three years from the date an alleged discriminatory act occurred" — calcivilrights.ca.gov.
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