LLC vs PLLC for a CPA Firm: Choosing and Registering Your Entity
Choosing between an LLC vs PLLC for a CPA firm usually comes down to state law: many states require licensed professionals to form a PLLC or professional corporation, while others allow a standard LLC. Both give liability protection for business debts; neither protects you from your own professional negligence.
Choosing between an LLC vs PLLC for a CPA firm usually comes down to state law: many states require licensed professionals to form a PLLC or professional corporation, while others allow a standard LLC. Both give liability protection for business debts; neither protects you from your own professional negligence.
Last updated: September 2026
LLC vs PLLC for a CPA firm: what actually differs
A PLLC is an LLC for licensed professionals. The operating mechanics — pass-through taxation by default, an operating agreement, member-managed or manager-managed structure — are the same. What differs is who may own it and who approves the formation. Many states require the owners of a PLLC to hold the relevant professional license, and several route the formation paperwork through the state board of accountancy before the secretary of state will accept it.
Liability is where new owners misread the difference. Neither structure shields you personally from a claim arising out of work you performed or supervised. What they shield is your personal assets from the firm's commercial obligations: the office lease, the software contracts, a vendor dispute. Professional liability cover, not entity choice, is what answers a negligence claim.
The practical rule: check your state's statute and your board's firm registration rules first, then pick the structure that is permitted, then decide on tax elections. Doing it in the other order is how people end up dissolving an entity in month three.
Sole proprietorship, LLC, PLLC and S corp election compared
S corp is a tax election, not an entity type — an LLC or PLLC can elect it. The table compares how each option behaves in practice.
| Option | Liability protection | Default taxation | Typical fit |
|---|---|---|---|
| Sole proprietorship | None — you and the business are the same legal person | Schedule C, self-employment tax on all profit | Testing an idea with a handful of clients; rarely right once you sign engagement letters |
| LLC | Separates personal assets from business debts | Pass-through; single-member is disregarded by default | States that allow non-professional entities to provide accounting services |
| PLLC | Same as LLC, with professional ownership requirements | Pass-through; same elections available | States that require licensed professionals to use a professional entity |
| S corp election | Depends on the underlying entity | Reasonable salary plus distributions; payroll filings required | Profitable firms where the payroll administration cost is outweighed by the savings |
General comparison only. Availability and requirements vary by state — confirm with your state board of accountancy.
CPA firm permit from the state board
Registering an entity with the secretary of state does not give you permission to practice. Most states separately require a firm permit or firm registration from the board of accountancy, held alongside the individual licenses of the people signing reports. The permit typically names a licensee in charge, renews on its own schedule, and can carry peer review enrollment conditions once you perform attest work.
Two things catch new owners out. First, the permit often has to be in place before you hold the firm out as a CPA firm, including on a website. Second, the renewal date rarely matches your individual license renewal, so you end up with two compliance dates to track in your first year and more after that.
Can non-CPAs own a CPA firm?
In many states, yes — but only up to a point. A common pattern is that a simple majority of ownership, and voting control, must sit with licensed CPAs, with non-licensee owners permitted as a minority, often subject to conditions such as being active in the firm and agreeing to abide by professional conduct rules. Some states are stricter and some are more permissive.
This matters if you plan to bring in a commercially minded partner, an equity-holding firm administrator, or outside investment. Ask the board the specific question before you draft the operating agreement, because unwinding an impermissible ownership split later is expensive and public.
EIN, business licenses and firm naming
The administrative layer is not difficult, but each item blocks something else, so do them in this order.
- EIN for the accounting firm: apply directly with the IRS once the entity exists. You need it to open a business bank account, run payroll and file entity returns. It is free — you never need a paid intermediary.
- Business bank account: open it before the first client payment lands, so personal and firm money never mix. Commingling is the fastest way to weaken the liability separation you just paid to create.
- State and local business licenses: separate from your professional license. City or county registration, and sometimes a home-occupation permit, may apply even to a virtual firm.
- Using 'CPA' in the firm name: most boards regulate this. The name usually has to be approved or at least conform to naming rules, and it cannot imply a partnership or specialization that does not exist. Reserve the name before you buy the domain.
- Registered agent and address: a home address becomes public record in most states. A registered agent service or commercial address avoids that.
- Sales tax registration: a minority of states tax some accounting or bookkeeping services. Check yours rather than assuming professional services are exempt.
How Remindoo helps once you are registered
Registration produces a pile of dates and documents: the firm permit renewal, the entity annual report, the operating agreement, the license of every person you later hire. In Remindoo these live as tasks with deadlines and automated reminders, so the renewals that have no client attached to them still get done.
The first client is the real test of whether the firm is organized. Remindoo gives you the client CRM record, a white-label engagement letter sent as part of client onboarding, and roles and permissions that control who can see which client. Setting those three up before client one is a couple of hours of work that saves a rebuild at client thirty.
Remindoo is built by a practicing chartered accountant who runs a 40-person accounting firm, so the workflows come from running a practice rather than from a product roadmap.
Next steps
IRS and compliance checklist
PTIN, EFIN, CAF, Circular 230, WISP and the FTC Safeguards Rule in one checklist.
Insurance and engagement letters
What to include in an engagement letter and which cover to buy first.
How to start an accounting firm
The full ten-step guide, startup costs and first-90-days plan.
Frequently asked questions
Do I need a PLLC to run a CPA firm?
It depends on the state. Some states require licensed professionals to use a PLLC or professional corporation; others accept a standard LLC. Check the statute and your board of accountancy's firm registration rules before filing, because the board often has to approve the entity.
Does an LLC protect me from a malpractice claim?
No. An LLC or PLLC separates your personal assets from the firm's commercial debts, but you remain personally responsible for professional work you perform or supervise. Professional liability insurance is what responds to a negligence claim.
Can a non-CPA own part of a CPA firm?
In many states a minority, non-controlling interest may be held by a non-licensee, usually with conditions. Licensed CPAs typically must hold a majority of ownership and voting control. Rules differ by state, so confirm with your board before drafting ownership documents.
Do I need an EIN if I am the only owner?
Practically, yes. You need an EIN to open a business bank account, run payroll and file entity returns, and most clients prefer not to receive an invoice tied to a Social Security number. Applying directly with the IRS is free.
When should I elect S corp status?
Only once profit is high enough that the self-employment tax saving clearly exceeds the cost of running payroll, filing an extra return and documenting a reasonable salary. Many firms wait until the second or third year and model it before electing.
Can I use 'CPA' in my firm name?
Usually only if the firm holds a valid firm permit and the name complies with your board's naming rules. Names implying a partnership that does not exist, or a specialization you cannot support, are commonly prohibited. Get the name cleared before buying a domain.
Do I need a business license for a home-based accounting firm?
Often yes. Professional licensure is separate from local business registration, and many cities require a business license or home-occupation permit regardless of where clients are located. Check your city and county requirements directly.
Registered? Get the firm organized before client one
Set up client records, engagement letters and roles in Remindoo so your first client arrives into a system, not an inbox.