In most situations, you can refuse a cognitive test — but whether that refusal costs you nothing or costs you your license, your job, your benefits, or your freedom depends entirely on who is asking. A doctor has to accept your “no.” A judge does not. Between those two poles sit employers, the Social Security Administration, motor vehicle agencies, insurers, and financial firms, each with its own leverage to make refusal painful. The real question isn’t whether you’re allowed to say no. It’s what saying no will cost.
At the Doctor’s Office
Your right to refuse is strongest here. The Supreme Court has recognized that the Due Process Clause of the Fourteenth Amendment protects a competent person’s right to refuse medical treatment and procedures, a principle established in Cruzan v. Director, Missouri Department of Health.1Constitution Annotated. Right to Refuse Medical Treatment and Substantive Due Process A cognitive screening is a medical procedure. No law forces you to sit for one because your doctor suggests it.
The consequences are medical, not legal. Without a baseline, there’s no way to track whether your thinking is changing over time, and early detection of conditions like Alzheimer’s, vascular dementia, or mild cognitive impairment is what opens the door to medications that can slow progression, useful lifestyle changes, and time to arrange your finances and care preferences while you can still direct them yourself.
Your doctor will respect the refusal but will document it in your chart. That note can matter later. If a family member ever petitions for guardianship, or a court has to evaluate your capacity, the record will show you were offered testing and declined.
The Medicare Annual Wellness Visit
If you’re on Medicare Part B, your free Annual Wellness Visit includes a cognitive impairment screening as part of the visit.2Centers for Medicare & Medicaid Services. Cognitive Assessment and Care Plan Services The screening can be done through direct observation, a brief tool, or input from family and caregivers.3Centers for Medicare & Medicaid Services. Annual Wellness Visit Health Risk Assessment You can decline it without losing Medicare coverage. The Annual Wellness Visit itself is a benefit, not a requirement, and refusing one component of it doesn’t affect your Part B enrollment or premiums.
At the DMV
Motor vehicle agencies in every state can require a driver to be re-examined when cognitive fitness is in question. The process usually starts with a report from a physician, a police officer, or a family member. The DMV can then require a written test, a road test, a cognitive screening, or some combination.
Refuse to show up or refuse to complete the re-examination, and your license is generally suspended until you comply. The suspension isn’t a punishment for failing — it’s what happens when the DMV can’t determine whether you’re safe on the road. In many states the suspension stays in place until you pass the required tests, submit medical documentation, and meet any other conditions the agency sets. If you never comply, you never get the license back.
At Work
Employment cognitive testing splits into two very different situations depending on whether you already have the job.
Job Applicants
Before making a conditional offer, an employer cannot require a medical exam or ask disability-related questions.4Office of the Law Revision Counsel. United States Code Title 42 – 12112 It can, however, ask you to take a cognitive ability test — one that measures reasoning, problem-solving, or processing speed — because those are generally treated as aptitude tests rather than medical exams under the ADA. Refusing one almost always ends the application. The employer has no obligation to keep moving you through the pipeline.
After a conditional offer, the rules change. The employer can require a full medical exam, including cognitive screening for conditions like dementia, as long as every incoming hire in the same job category faces the same requirement.4Office of the Law Revision Counsel. United States Code Title 42 – 12112 Refuse at this point and the offer can be withdrawn.
Current Employees
For someone already on the job, the bar is higher. An employer can require a cognitive evaluation only when it’s job-related and consistent with business necessity.4Office of the Law Revision Counsel. United States Code Title 42 – 12112 Under EEOC guidance, that standard is met when the employer has a reasonable belief, based on objective evidence, that your ability to perform essential functions is impaired by a medical condition or that you pose a direct threat because of one.5U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Disability-Related Inquiries and Medical Examinations of Employees Under the ADA A supervisor’s hunch isn’t enough. There has to be documented performance trouble, observed incidents, or something equally concrete.
If the employer meets that threshold and you refuse the fitness-for-duty exam, the possible consequences include suspension, reassignment, or termination. A common mistake is assuming refusal protects you. It doesn’t. The employer still can’t confirm you’re safe to do the job, and that uncertainty rarely cuts in the employee’s favor. If the test itself is hard to take because of a medical condition, requesting a reasonable accommodation is a better move than a flat refusal.
For Social Security Disability Benefits
When you apply for SSDI or SSI, the Social Security Administration may schedule a consultative examination to evaluate your mental functioning, and that often includes cognitive testing. The SSA doesn’t ask whether you’d like to participate. Cooperation is expected.
If you refuse or fail to attend without a good reason, the SSA can deny your claim based on your failure to cooperate.6eCFR. Code of Federal Regulations Title 20 – 404.1518 If you’re already receiving benefits, the SSA can decide your disability has stopped.7eCFR. Code of Federal Regulations Title 20 – 416.918 Religious or personal objections to medical testing don’t excuse a refusal.8Social Security Administration. Code of Federal Regulations 416.916
The regulations do recognize legitimate reasons for missing an appointment: illness on the exam date, not receiving notice, being given wrong information about the time or location, or a death or serious illness in the immediate family.6eCFR. Code of Federal Regulations Title 20 – 404.1518 The SSA also weighs your physical, mental, educational, and language limitations. If you can’t make an appointment, call the SSA before it, because rescheduling is nearly always possible while a no-show is treated as noncooperation.
When a Court Orders the Evaluation
Courts can order cognitive or psychological evaluations in criminal competency hearings, guardianship petitions, and custody disputes. In federal criminal cases, a judge may order a psychiatric or psychological examination when there’s reasonable cause to believe the defendant can’t understand the proceedings or assist in their own defense.9Department of Justice Archives. Criminal Resource Manual 63 – Standards for Determining Competency and for Conducting a Hearing
Refusing a direct court order can result in a finding of contempt. Federal courts have the power to punish disobedience of any lawful order by fine, imprisonment, or both.10Office of the Law Revision Counsel. United States Code Title 18 – 401 State courts have parallel authority. Refusal also tends to backfire in less obvious ways. Judges may draw negative inferences from an unwillingness to be evaluated, and those inferences can shape the outcome of the case.
Guardianship
In guardianship proceedings, a cognitive evaluation helps the court decide whether you can manage your finances and personal care. Refusal doesn’t stop the case. The court proceeds with whatever’s available — testimony from family members, medical records, observations from social workers — and can appoint a guardian on that evidence alone. Some courts have found they lack authority to physically compel a neuropsychological exam, but that isn’t a win for the person refusing. Without direct testing, the judge relies on other people’s accounts of your behavior, and you lose the chance to show your abilities on a standardized measure.
Custody Disputes
A judge who orders a psychological evaluation in a custody case expects compliance. Refusing hands the other parent a ready-made argument about your judgment and cooperativeness. Custody decisions turn on the child’s best interests, and a parent who won’t take an ordered evaluation is easy to portray as the harder parent to work with. The court can also hold you in contempt, impose sanctions, or simply decide custody on the other parent’s evidence.
Financial Accounts and Insurance
Cognitive concerns can trigger consequences in the financial world even without a formal test.
Brokerage and Investment Accounts
Under FINRA Rule 2165, broker-dealers can place a temporary hold on disbursements or transactions in your account if they reasonably believe you’re being financially exploited. The rule covers anyone 65 or older, and anyone 18 or older whom the firm reasonably believes has a mental or physical impairment that affects the ability to protect their own interests. An initial hold can run up to 15 business days, with a possible extension of another 10 if the firm’s internal review supports the concern.11FINRA. FINRA Rule 2165 – Financial Exploitation of Specified Adults
No failed test is required. Confusion during phone calls, erratic transaction requests, or a tip from a trusted contact person can be enough. Refusing to engage with the firm’s concerns doesn’t unfreeze the account faster.
Long-Term Care Insurance
Long-term care insurers routinely require cognitive screening as part of the application process, particularly for applicants over 70. These assessments typically include word recall, clock drawing, and other short memory tasks. Signs of impairment during the screening can mean denial or a much higher premium. Refusing the screening effectively ends the application, because an insurer won’t issue a policy when it can’t assess one of the primary risks the policy covers. Applying earlier, while the screening is comfortable to pass, is what preserves affordable options.
The Common Thread
Look across these settings and the pattern is consistent. The party asking for the test holds something you want or need: a license, a job, benefits, custody, coverage, access to your own money. Refusal rarely prevents the consequence you were trying to avoid. It moves the decision to someone else who has less information about you and no reason to give you the benefit of the doubt. The medical setting is the one place you can say no cleanly. Everywhere else, the institution can usually keep going without your cooperation, and the outcome tends to be worse than whatever the test would have shown.