The answer
Accountants professional liability, often called CPA malpractice insurance, pays defense costs, settlements, and judgments when a client alleges an accounting error: a missed election, an audit that missed a material misstatement, or advice outside the engagement. Coverage mechanics are the same in every state PRIA writes, with a claims-made and reported form and a retroactive date that must be carried forward at each renewal. Premium is driven by service mix, revenue, staff count, and claims history far more than by state, but state decides venue, how many carriers will quote the class, and what limits clients in that market expect.
States where PRIA writes coverage
Texas (TX)
A large accounting market with heavy energy, real estate, and healthcare work, where attest and audit engagements drive both limits and premium.
Florida (FL)
Litigation volume and a large retiree and real estate client base push professional liability pricing toward the upper half of the national band.
Illinois (IL)
Chicago anchors a market with substantial audit, not-for-profit, and manufacturing work, and Cook County venue affects how claims are valued.
New Jersey (NJ)
A dense, regulated market where firms serving pharmaceutical, healthcare, and construction clients buy higher limits than headcount alone would suggest.
Nevada (NV)
A smaller market with fewer carriers writing accounting E&O, so shopping the renewal matters more than in larger states.
Delaware (DE)
Corporate, trust, and entity work dominates, so limits track the size of the entities served rather than the size of the firm.
Typical limits and application requirements by state
The limits below are the placements carriers most often quote for firms in each state, not state requirements. Licensing, peer review, and disclosure rules change, so confirm the current rule with your state board before relying on any row.
| State | Typical limits | Coverage mandate | Licensing notes | What we need to quote |
|---|---|---|---|---|
| Texas (TX) | $1M / $1M for tax; $1M to $3M for audit | No state requirement to carry professional liability for most engagements; client and lender agreements may require it | Peer review and licensing rules apply to attest work; confirm current board requirements | Engagement mix, revenue, staff count, largest client, loss runs |
| Florida (FL) | $1M / $1M for tax; $1M to $3M for audit | No general coverage mandate; institutional clients often require certificates | Board rules and peer review obligations apply to attest services | Engagement mix, revenue, representation work, loss runs |
| Illinois (IL) | $1M / $1M for tax; $1M to $3M for audit | No general coverage mandate; grant and lender agreements commonly set a limit | Peer review and board rules apply to attest work | Engagement mix, not-for-profit and audit work, largest client, loss runs |
| New Jersey (NJ) | $1M / $1M for tax; $2M+ for healthcare and pharma advisory | No general coverage mandate; client contracts often require proof of coverage | Board rules and peer review obligations apply to attest services | Engagement mix, client concentration, attest work, loss runs |
| Nevada (NV) | $1M / $1M for tax; $1M to $2M for audit | No general coverage mandate; fewer carriers write the class, so marketing matters | Board rules and peer review obligations apply to attest services | Engagement mix, gaming and hospitality clients, loss runs |
| Delaware (DE) | $1M to $2M for entity and trust work | No general coverage mandate; fiduciaries and corporate clients may require it | Board rules and peer review obligations apply to attest services | Largest entity served, trust and estate work, attest services, loss runs |
| California (CA) | $1M / $1M for tax; $1M to $3M for audit | No general coverage mandate; disclosure rules apply in specific practice situations | California has specific rules for certain engagements; confirm the current requirement before you rely on it | Engagement mix, revenue, staff, largest client, loss runs |
Texas (TX)
Texas firms range from solo tax preparers to multi-office audit practices, and the coverage needs look nothing alike. A firm signing audit opinions carries far more exposure per client than a bookkeeping shop, and carriers price that difference into both the base rate and the minimum premium.
Premium in Texas is driven by service mix, revenue, staff count, and claims history more than by location, though Houston, Dallas, and Austin firms handling larger engagements tend to buy higher limits. Firms with SEC or public company work usually need limits well above the small-firm starting point.
| Service | Typical limit | Why |
|---|---|---|
| Tax preparation and planning | $1M per claim / $1M aggregate | The common starting structure for tax-focused practices. A single amended return or penalty dispute rarely exceeds the limit, but frequency matters. |
| Audit and attest | $1M to $3M per claim | Limits track the size of the entities audited. Firms with public company or institutional clients usually buy $2M or more. |
| Bookkeeping and CFO services | $1M per claim | Lower severity than audit work, but payroll and cash-handling errors can compound across clients. |
Florida (FL)
Florida accounting firms see a steady stream of IRS representation and penalty work alongside real estate and estate planning engagements. Claims tend to arrive as client disputes over missed elections, late filings, and advice given outside the engagement letter.
Premium reflects service mix, revenue, and claims history. Firms in Miami, Tampa, Orlando, and Jacksonville handling larger commercial clients price higher, while small tax practices land closer to the middle of the range. Carriers also weigh whether the firm documents scope in engagement letters.
| Service | Typical limit | Why |
|---|---|---|
| Tax preparation and representation | $1M per claim / $1M aggregate | A standard starting point. Firms handling IRS representation for business clients often move to $1M / $2M. |
| Real estate and estate work | $1M to $2M per claim | Transaction values drive severity here rather than headcount. |
| Audit and attest | $1M to $3M per claim | Set by the largest entity audited and any lender or investor requirements. |
Illinois (IL)
Illinois firms range from downtown Chicago audit practices to downstate tax and bookkeeping shops. The Chicago market carries more attest work and larger engagements, which raises both limits and premium for firms operating there.
Underwriters weigh service mix, revenue per professional, and claims history. Firms serving not-for-profits and manufacturers often find limits set by grant agreements and lender requirements rather than by preference, which is worth checking before renewal.
| Service | Typical limit | Why |
|---|---|---|
| Audit and attest | $1M to $3M per claim | Not-for-profit and manufacturing audits often require evidence of coverage at a specific limit. |
| Tax and advisory | $1M per claim / $1M aggregate | Standard for tax-led practices; $1M / $2M when business return volume is high. |
| Litigation support and forensic work | $1M to $2M per claim | Testifying work carries different exposure than compliance work and is often excluded unless disclosed. |
New Jersey (NJ)
New Jersey accounting practices often sit close to pharma, healthcare, and construction clients, and the engagements that come with them carry larger numbers. That shows up in limits rather than in base rate.
Carriers look at service mix, client concentration, and whether the firm does attest work. A practice with one client representing a large share of revenue is priced differently from a diversified book, regardless of state.
| Service | Typical limit | Why |
|---|---|---|
| Audit and attest | $1M to $3M per claim | Client size and industry drive the number more than firm size. |
| Tax and compliance | $1M per claim / $1M aggregate | Standard starting structure for tax-led practices. |
| Healthcare and pharma advisory | $2M per claim | Larger engagement values and regulatory exposure justify higher limits. |
Nevada (NV)
Nevada has a compact accounting community serving gaming, hospitality, construction, and real estate clients. Fewer carriers actively write the class than in California, which makes market access the practical difference between a good renewal and a flat one.
Premium is driven by service mix and revenue. Firms with gaming or hospitality clients should expect questions about cash handling, internal controls advice, and the size of the entities served.
| Service | Typical limit | Why |
|---|---|---|
| Tax and bookkeeping | $1M per claim / $1M aggregate | Standard for small practices; adequate for most individual and small business work. |
| Audit and attest | $1M to $2M per claim | Gaming and hospitality audits can carry larger severity than the firm's revenue suggests. |
| Hospitality and gaming advisory | $1M to $2M per claim | Controls-related advice is the exposure to watch when setting limits. |
Delaware (DE)
Delaware accounting work skews toward corporate services, trust and estate matters, and entity administration for businesses registered in the state. Engagements can be small in fee but large in consequence, which is why limits here are usually set by the client relationship.
Underwriters ask about the largest entity served, whether the firm provides attest services, and how scope is documented. A practice with a single large corporate client prices differently from a diversified book of small entities.
| Service | Typical limit | Why |
|---|---|---|
| Corporate and entity services | $1M to $2M per claim | Set by the size of the entities served and any indemnity language in engagement letters. |
| Trust and estate accounting | $1M per claim | Severity tracks estate values; fiduciaries may require proof of coverage. |
| Attest services | $1M to $3M per claim | Largest entity audited drives the limit, as in every state. |
CPA malpractice questions
Do accountants need professional liability insurance by law?
In the states PRIA writes, professional liability coverage is generally not a condition of holding a license, but attest work, peer review, client contracts, and lender or grant agreements frequently require proof of coverage. Confirm the current rule with your state board before relying on any summary, including this one.
Does the state change what I pay for CPA malpractice insurance?
Less than service mix, revenue, and claims history do. State affects venue, how many carriers will quote the class, and what limits clients in that market expect. A tax practice in Nevada and a tax practice in Illinois with the same revenue price closer together than either does to an audit firm in the same city.
What limit should a small accounting firm start with?
Most small firms start at $1M per claim with a $1M aggregate. Firms doing audit or attest work, or serving clients whose agreements set a limit, usually move to $1M / $2M or higher. Set the limit from the largest engagement you would have to defend, not from the cheapest available premium.
Can one policy cover a firm licensed in several states?
Yes. Professional liability policies are written for the firm, and the states where it practices are scheduled on the application. What matters is disclosing every state of practice and every attest engagement, because an undisclosed jurisdiction can create a coverage question after a claim.
Does prior acts coverage transfer when I switch carriers?
Only if the new policy carries the same retroactive date. If the new carrier sets the retroactive date to the inception date, work performed before that date is uninsured, and the prior policy may not respond either. Ask for the retroactive date in writing before you sign a replacement policy.
Reviewed by Dean Hamid, CLCS, AINS, Founder and Principal Broker · California Insurance License #0G81238 · Last reviewed November 2026.
Get a CPA malpractice quote
One form, multiple A-rated carriers, no obligation. Tell us your services and the largest client you serve, and we will show you where your firm lands.