An employee’s request to bring a service dog to work is generally evaluated as a reasonable-accommodation request. Workplace accommodation rules differ from the ADA rules governing customers in public businesses. [1]
Use the interactive process
Explain the disability-related limitation and how the animal helps perform essential functions or access the workplace. An employer may request appropriate documentation when the disability or accommodation need is not obvious. The inquiry should address necessity, effectiveness, undue hardship, and actual safety concerns. [1]
A public-access service-dog identification card does not decide the employment request. Alternatives may be considered through the accommodation process. [1]
Address practical responsibilities
Discuss workspace, animal control, breaks, coworkers’ substantiated concerns, and a trial arrangement where useful. Identify who will handle the animal and how the arrangement will work during meetings or shared-space use. Keep the request and response in writing. [1]
Tax treatment is separate from workplace access. Do not assume every pet expense becomes deductible because the animal comes to work; medical-expense deductions depend on the applicable tax requirements and individual circumstances. [2]
Practical application
An employee and employer can discuss where the animal will stay, how it will remain controlled, and whether the arrangement effectively addresses the limitation. Actual evidence about the worksite matters when assessing hardship or safety. A disagreement should be evaluated through the accommodation process. [1] Keep records of claimed medical expenses separately under the applicable tax rules. [2]
Medical-expense tax treatment is limited
IRS Publication 502 describes qualifying costs of buying, training, and maintaining a guide dog or other service animal for the stated medical purposes. That does not make every animal brought to work deductible. A taxpayer generally must satisfy the medical-expense rules, including itemizing and the applicable threshold. For Schedule A medical deductions, qualifying expenses generally must exceed 7.5 percent of adjusted gross income. Keep evidence of the medical purpose and actual costs and distinguish ordinary pet expenses. [2] The employer’s accommodation decision does not determine a federal tax deduction. [1][2]
Related questions
Related guidance: ADA service-dog documentation rules and Can a Hotel Charge for a Service Dog?.
Primary sources
- Enforcement Guidance on Reasonable Accommodation and Undue Hardship under the ADA | U.S. Equal Employment Opportunity Commission
- Publication 502 (2025), Medical and Dental Expenses | Internal Revenue Service
Sources checked: October 31, 2026.