Federal laws

ADA Guide for Small Businesses and Employers

Plain-English guide to the Americans with Disabilities Act for small business owners: who is covered, slides, key rules, numbers, tax credits and a checklist.

Last reviewed October 29, 2026 · General information, not legal advice

General information only, not legal advice. CPA Tax Payroll and Accounting Corp is a CPA firm, not a law firm. Laws change: confirm with the official source or a licensed attorney before you act. Read the full notice.

The Americans with Disabilities Act (ADA) is a federal civil rights law with two parts that matter to most small businesses. Title I covers the workplace and is enforced by the Equal Employment Opportunity Commission (EEOC). Title III covers businesses open to the public and is enforced by the U.S. Department of Justice (DOJ). This guide is for owners of small businesses, nonprofits and professional practices who want to know where the ADA reaches them. Page 3 closes with a short routine we call the Doorway-to-Desk Access Check.

Slide show: The ADA in seven slides

  1. What the law does

    The ADA of 1990, amended in 2008, bars disability discrimination in jobs (Title I) and in businesses open to the public (Title III).

  2. Who it covers

    Job rules reach employers with 15 or more employees. Title III reaches almost any customer-facing business of any size, accountants' and doctors' offices included.

  3. The core rule

    Employers provide reasonable accommodations. Businesses remove easy physical barriers, communicate effectively and welcome service dogs.

  4. A number to know

    A small business can claim a Disabled Access Credit of up to $5,000 and deduct up to $15,000 of barrier removal.

  5. The deadline

    A job charge goes to the EEOC within 180 days, or 300 days in Illinois, against employers with 15 or more employees.

  6. The penalty

    In DOJ suits the maximum civil penalty is $118,225 for a first Title III violation and $236,451 for a later one.

  7. Tip

    Write down each accommodation conversation, and keep medical files apart from regular personnel files.

Who is covered

ItemRule
Title I employer15 or more employees on each working day in each of 20 or more calendar weeks, this year or last. Left out: the U.S. government and its wholly owned corporations, Indian tribes and bona fide tax-exempt private membership clubs.
Title III businessPrivate businesses open to the public, such as restaurants, shops, banks, hotels, medical offices, gyms, private schools, day care and offices of accountants and lawyers. No minimum headcount or revenue. Nonprofits serving the public are included.
Title III exemptionsReligious organizations and bona fide private clubs. Membership fees alone do not make a club exempt.
Commercial facilitiesOffice buildings, warehouses and factories need only meet the ADA building standards for new construction and alterations.
DisabilityA physical or mental impairment that substantially limits a major life activity, a record of one, or being regarded as having one.

How it touches your taxes and payroll

Back pay awarded for an ADA claim generally counts as wages for social security and Medicare, so it goes on Form W-2 in the year it is paid (IRS Publication 957). See our guide to W-2 and W-3 filing. On the benefit side, eligible small businesses can claim the Disabled Access Credit on Form 8826 and a barrier-removal deduction. Both are explained under small business tax credits.

Next, see the rules and numbers for section-by-section duties and penalties, then the checklist and FAQs. Employers also meet related duties under Title VII and the Age Discrimination in Employment Act.

Official sources

This page is a plain-language summary. The official source controls if there is any difference.