No — in most situations a CPA does not have to be licensed in every state where they work. Under CPA mobility laws adopted in all 50 states, the District of Columbia, Guam, and the U.S. Virgin Islands, a license from your home state lets you serve clients in other participating jurisdictions with no application, no fee, and no waiting period. The exceptions matter, though: opening a permanent office in another state, holding a license from a jurisdiction that falls short of national standards, or performing audit work through a firm can each force you to get licensed where the work happens.
How CPA Mobility Works
The Uniform Accountancy Act, developed jointly by the National Association of State Boards of Accountancy (NASBA) and the American Institute of Certified Public Accountants (AICPA), is the model law behind cross-border practice. Section 23 creates what the profession calls “practice privileges.” If your home-state license is in good standing and your qualifications meet the substantial equivalency standard, you may practice in any other participating state automatically.1NASBA. Uniform Accountancy Act 9th Edition The statute is blunt: “no notice or other submission shall be provided by any such individual.”2NASBA. Uniform Accountancy Act – Sixth Edition
It doesn’t matter whether you show up at a client’s office in person, work by phone, or handle everything electronically. A CPA licensed in one state can prepare tax returns, provide advisory services, and handle most non-audit engagements for clients anywhere in the country on a single license.
There is a trade-off. By practicing in another state under mobility, you consent to that state’s board of accountancy exercising disciplinary authority over you as if you held a full license there. A complaint from a client in the target state can trigger an investigation, sanctions, and a referral back to your home board. The system is designed as “no notice, no fee, and no escape.”2NASBA. Uniform Accountancy Act – Sixth Edition
Does Your Home-State License Qualify
Mobility only works if your license is “substantially equivalent” to the Uniform Accountancy Act’s benchmarks. NASBA evaluates state licensing laws against three criteria:
- A bachelor’s degree or higher with at least 150 semester hours, including a concentration in accounting.
- Successful completion of the Uniform CPA Examination.
- At least one year of qualifying professional experience.
If your state’s law meets all three, you receive automatic mobility everywhere else that participates.3NASBA. Substantial Equivalency
A handful of jurisdictions fall short. If you hold a license from one of them, you can still qualify individually through NASBA’s CredentialNet service, administered by the National Qualification Appraisal Service. CredentialNet reviews your personal education, exam scores, and experience rather than your state’s law, and issues a verification report that most state boards accept.4NASBA. NASBA Licensing
A grandfather clause covers CPAs who passed the Uniform CPA Examination and obtained a valid license before January 1, 2012. Those individuals may be exempt from the 150-hour education requirement for mobility purposes even if they finished under an older standard.2NASBA. Uniform Accountancy Act – Sixth Edition
When You Do Need a Second License
Mobility covers a lot of ground but not everything. The biggest trigger is where you physically operate. Your primary license must come from the state where you maintain your principal place of business. Relocate that office to a new state, and you have to apply for licensure there. Running a permanent practice in one state on a license from another is not permitted.
Other situations that require a full reciprocal license:
- Opening any permanent physical office in a second state, including a satellite location.
- Holding a license from a non-equivalent jurisdiction without having obtained individual verification through CredentialNet.
- Working for an employer or on a government contract that requires a license issued by the state where the work is performed, regardless of mobility.
Establishing a physical office without the right license can result in administrative penalties, fines, and disciplinary action from both the new state’s board and your home board.
How to Apply for a Reciprocal License
When mobility doesn’t cover you, the path is a reciprocal license, sometimes called licensure by endorsement. Start at the target state’s board of accountancy website. NASBA’s Accountancy Licensing Library compiles state-specific forms and instructions in one searchable place.5NASBA. The Accountancy Licensing Library – Your Ultimate Resource for CPA Licensure
Most boards want some combination of:
- An Authorization for Interstate Exchange of Information, which lets boards share your licensing history, disciplinary records, and exam data.
- Continuing professional education records. Most jurisdictions require roughly 40 hours per year, though reporting cycles run annually, biennially, or triennially.
- Verification of your Uniform CPA Examination scores, either from your original state or through NASBA.
- An ethics examination. Some states accept the AICPA Professional Ethics course; others require a state-specific exam.
- A criminal background check, often with fingerprinting and pulls from both FBI and state-level databases.
Reciprocal licensing fees generally run $100 to $300 and are typically nonrefundable, with separate charges possible for transcripts, background checks, and ethics exams. Processing times range from two to four weeks in fast states to six weeks or longer elsewhere. Incomplete applications, pending background checks, and missing transcripts are the usual reasons for delays.
Firm Mobility Is Narrower Than Individual Mobility
Here is where CPAs regularly get tripped up: individual mobility and firm mobility are not the same thing. You may personally qualify to practice in every state and still find that your firm needs a separate permit to perform certain services across state lines.
The dividing line is attest work — audits, reviews, and examinations of prospective financial information. Under Section 7 of the Uniform Accountancy Act, a firm without an office in a state that wants to perform attest services there generally must either register with that state’s board or meet specific conditions for an exemption.1NASBA. Uniform Accountancy Act 9th Edition Fewer than 30 states have adopted full firm mobility. In the rest, your firm needs a permit.
Firm registration typically involves:
- Naming a designated licensee, a specific CPA who holds a valid license in the state and takes responsibility for the quality of services delivered there.1NASBA. Uniform Accountancy Act 9th Edition
- Undergoing peer review at least once every three years, verifying that individuals who supervise attest work and sign reports meet the profession’s competency standards.1NASBA. Uniform Accountancy Act 9th Edition
- Paying annual firm permit fees that often run several hundred dollars.
Even in firm-mobility states, the firm still has to meet peer review and ownership requirements. Non-attest services like tax preparation and consulting generally do not trigger firm registration, though the line can blur when advisory engagements involve compilations or agreed-upon procedures.
Mobility Doesn’t Solve Your Tax Filing
Being licensed to practice in another state and being free of that state’s tax code are two different things. Working in another state, even briefly, can create a nonresident income tax filing obligation for you personally.
As of 2026, 22 states have no meaningful threshold for nonresident filing. A single day of work in one of those states can be enough to require a return. Nineteen states offer some relief through filing thresholds, but the numbers vary widely: day-based rules generally fall between 20 and 30 days per year, while income-based thresholds run from as low as $100 to over $15,000 before filing becomes mandatory. A couple of states use combined tests.
The Mobile Workforce State Income Tax Simplification Act, most recently introduced in the 119th Congress as S.1443, would create a standard 30-day threshold nationwide.6Congress.gov. S.1443 – Mobile Workforce State Income Tax Simplification Act of 2025 It has not been enacted. Until it is, track where you work and for how long, especially if you travel to client sites.
What Happens If You Practice Without the Right License
The penalties are real. Administrative fines for unauthorized practice range from a few thousand dollars for a first offense to $25,000 or more for repeat violations, depending on the state and the services involved.
The bigger risk is your home license. State boards share information, and a disciplinary action in one state can trigger a separate investigation by your home board, which has authority to suspend or revoke your license based on another state’s finding. A single misstep can put your entire practice at risk.
Firms carry their own exposure. An unregistered firm that performs attest services in a state requiring a permit can be fined, barred from future practice there, and referred for disciplinary proceedings in its home jurisdiction. Its peer review standing may take a hit as well, which ripples into every other state where it operates.
Before you take on a client in a new state or move any part of your practice, confirm whether mobility covers you or whether you need a permit. The Accountancy Licensing Library and the target state’s board website will tell you.