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Business Insurance

Professional Liability Insurance

Professional liability, also called errors and omissions insurance, addresses client claims that your advice or services caused a financial loss. This guide explains how it differs from general liability and how legal, license, and contract rules work in Maryland, Virginia, and Washington, D.C.

Written by: US Insurance Guide Editorial Team · Insurance Content Editor

Reviewed by: US Insurance Guide Review Team · Insurance education content

10 min read
Last reviewed
Sources reviewed
DC Department of Insurance, Securities and Banking, Maryland Insurance Administration, Virginia State Corporation Commission, US Insurance Guide

Key points

  • What is professional liability insurance?
  • How is professional liability different from general liability?
  • Is professional liability required by law in Maryland, Virginia, or D.C.?

Professional liability insurance, also called errors and omissions (E&O) insurance, is the policy that may respond when a client says your professional work was wrong, late, incomplete, or negligently performed and that the mistake caused a financial loss. It is not a substitute for general liability insurance, which is built around bodily injury and property damage.

The District of Columbia Department of Insurance, Securities and Banking describes professional liability as coverage for wrongful practices by professional service providers, using healthcare providers, lawyers, and consultants as examples. DISB states that this insurance covers faulty service (errors) or failure to provide a service (omission). Malpractice insurance is a specific professional liability form used for physicians and certain other licensed professionals.

This guide is educational. It does not tell you whether your occupation must be licensed or insured. Policy wording, exclusions, and contract clauses vary. A licensed insurance professional can review your services, contracts, and any board rule that applies to you. For the rest of a small-business coverage map, see what insurance a small business may need and our business insurance guides.

Professional Liability Versus General Liability

These two policies are often requested on the same certificate. They do not cover the same events.

General liability (CGL)Professional liability (E&O)
Core claimSomeone was physically hurt, or tangible property was damagedA client lost money or suffered a financial harm tied to your advice or professional service
Typical exampleA visitor slips in a Bethesda office. A laptop is dropped during a site visit in Arlington.A tax filing is late. A security design misses a requirement. A listing or opinion is alleged to be negligent.
DISB framingCGL may cover bodily injury, damage to others' property, personal injury such as slander or libel, and false or misleading advertisingProfessional liability covers faulty service or failure to provide a service. Malpractice is a related form for certain licensed professionals.
Usual triggerAn accident arising from premises or operationsAn alleged error, omission, or professional negligence
Common formOften occurrenceOften claims-made

DISB is explicit that commercial auto and professional liability are separate from CGL. The general liability explainer covers bodily injury, property damage, and advertising injury. If your work product is a report, filing, design, or managed service, that explainer is not enough on its own.

A DMV firm can need both. A Falls Church architect who visits a job site has premises exposure (GL) and design exposure (professional liability). A Capitol Hill consultant who never hosts clients may still need E&O because the deliverable is advice.

What Professional Liability May Cover

A professional liability policy is a contract. Coverage depends on the insuring agreement, definitions of professional services, exclusions, and limits. In general terms, a claim may involve:

  • An alleged error in work you performed for a fee
  • An alleged omission: a step, disclosure, or service you failed to provide
  • Defense costs for a covered claim, which may be inside or outside the limit depending on the form
  • Settlements or judgments for covered financial loss, up to the limit

Malpractice policies, as DISB notes, are a professional liability subtype that may also address bodily injury tied to professional care. That is a different product from the E&O form used by a bookkeeper or IT contractor.

Policies often define "professional services" narrowly. If a District technology firm, real estate team, or hybrid consultancy lists services the policy does not describe, a claim can fall outside coverage.

Common limitations include:

  • Intentional wrongdoing, fraud, or criminal acts
  • Bodily injury and property damage that belong on a GL or commercial auto policy
  • Employment claims (hiring, firing, harassment), which are usually employment practices liability
  • Breach of contract that is not also a professional-negligence claim, depending on wording
  • Work performed before the retroactive date on a claims-made policy
  • Known claims or circumstances you did not disclose at binding

Cyber incidents overlap in messy ways. A failed backup recommendation may look like E&O. A network intrusion may look like cyber liability. Many District contractors are asked for both.

Professions That Commonly Discuss This Coverage

The following are illustrations of work that produces advice or service-quality claims. This is not a licensing list and not a statement that any of these occupations must carry E&O under Maryland, Virginia, or District law.

Line of workWhy E&O comes up in the DMV
AttorneysOpinion letters, filing deadlines, conflicts, and advice to clients who also do business with the federal government
Accountants and bookkeepersTax positions, payroll filings, and audit or compilation work for contractors and nonprofits
Management and policy consultantsStatements of work with federal agencies, primes, and Maryland or Virginia agencies
Real estate professionalsDisclosure, valuation, and transaction-timing allegations in a high-cost housing market
Architects and engineersDrawings, specifications, and construction-administration decisions on local projects
IT, software, and cybersecurity firmsImplementation failures, missed requirements, and security-design allegations
Healthcare-adjacent practicesBilling, care-coordination, or professional-service allegations. Clinical malpractice is a distinct form.

Solo practitioners in Rockville, Arlington, and downtown D.C. see the same certificate requests as larger firms. The trigger is usually the client, the prime, or a facility lease, not a general statute.

If you also have employees, vehicles, or a public office, pair this conversation with Maryland business insurance, Virginia business insurance, and Washington, D.C. business insurance. Workers' compensation and commercial auto are separate legal topics.

Claims-Made Versus Occurrence, at a High Level

Most business owners meet occurrence forms first, because many general liability policies use them. Professional liability is more often claims-made. The difference controls whether a claim years later still has a policy in front of it.

FeatureOccurrenceClaims-made
What must happen during the policy periodThe incident or wrongful actThe claim is first made (and often first reported). The act usually must be after the retroactive date.
Claim filed after the policy endsMay still be covered if the act happened while the policy was in forceGenerally not covered unless an extended reporting period (tail) applies
Retroactive dateUsually not usedThe earliest date of services the policy will consider
Typical useMany CGL policiesMany professional liability policies

Occurrence follows the event. Claims-made follows the claim. For DMV professionals who change firms, win a contract that demands higher limits, or wind down a practice: keep the retroactive date as far back as your first covered services if the insurer will offer it, report potential claims when the policy requires notice of circumstances, and ask about an extended reporting period if you retire or move to a carrier that will not pick up prior acts. A gap between claims-made policies can leave a year of work with no policy home. Do not treat a GL occurrence policy as tail coverage for professional work.

Maryland, Virginia, and the District do not impose a single professional-liability mandate on every business. DISB, the Maryland Insurance Administration, and the Virginia Bureau of Insurance regulate insurance and publish consumer material. They do not, in those general resources, say that every firm must buy E&O.

What you may actually face:

PressureWhat it isWhat it is not
State or District statute of general applicationUsually silent on E&O for ordinary businessesNot a substitute for reading a specific licensing statute
Licensing board or practice ruleMay require minimum limits, a particular form, or proof at renewal for some occupationsNot something this site can certify for your license
Client or prime contractOften states minimum E&O limits, additional-insured or certificate language, and claims-made notice rulesNot a law, but it can stop you from starting work
Government contractFederal, District, Maryland, and Virginia solicitations frequently list professional liability beside GL and workers' compensationNot uniform across agencies
LeaseMore often requires GL. Some professional-office leases also mention E&O.Not a professional-license rule

The split is simple: the law may be silent, and the contract may still be mandatory for that engagement.

Federal contracting is the local multiplier. Many District, Montgomery County, and Northern Virginia professional firms sell to agencies or primes. Those statements of work commonly ask for professional liability with a stated limit, sometimes with coverage that must continue after the work ends. That continuation clause is one reason claims-made tails appear in closeout checklists. Maryland and Virginia state and local contracts can do the same at a smaller scale: county IT work, school-system consulting, or accounting for a nonprofit that passes through public funds.

This article cannot tell you whether your board requires coverage. If you hold a professional license, read the rule or ask the board. Then ask a licensed insurance professional whether a policy on the table meets that rule.

How Professional Liability Fits a DMV Coverage Plan

E&O is one layer, not a business owners policy by another name.

ExposureCoverage that usually addresses it
Client alleges a professional mistakeProfessional liability
Visitor injury or damaged client property from operationsGeneral liability
Employee work injuryWorkers' compensation (thresholds differ by jurisdiction)
Business-owned or business-used vehiclesCommercial auto
Your own office equipment and tenant improvementsCommercial property or a BOP
Extra liability above GL (and sometimes other underlying policies)Commercial umbrella or excess
Network intrusion, ransomware, or breach noticeCyber liability

A home-based consultant in Silver Spring or Alexandria should not assume a homeowners policy covers client allegations. Homeowners and renters forms typically limit or exclude business professional services.

This guide does not quote premiums or recommend a limit. DISB notes that professional liability premiums depend on the type of service and its level of risk. Industry, revenue, claim history, deductible, retroactive date, and whether defense costs erode the limit all affect price. Compare those terms, not a single dollar figure.

Questions to Ask a Licensed Professional

  • Does this policy's definition of professional services match the work in my proposals and federal or local contracts?
  • Is the form claims-made, and what is the retroactive date?
  • Are defense costs inside or outside the limit?
  • Do my current contracts require coverage to continue after the project ends, and would I need tail coverage if I change insurers?
  • Should I carry general liability alongside this policy?
  • Does any licensing board that regulates my work specify a form or minimum limit? (Confirm the rule with the board. The agent can then help you see whether a policy matches it.)
  • Would a commercial umbrella sit above these limits, and does the umbrella follow the professional liability form?

Bring sample contracts and any certificate language a client has already sent. For help connecting with a licensed professional, use get insurance help.

Frequently Asked Questions

What is professional liability insurance?
Professional liability insurance, often called errors and omissions (E&O) coverage, may respond when a client alleges that your professional services, advice, or failure to perform a service caused a financial loss. It is designed for mistakes in professional work, not for slip-and-fall injuries or damage to a client's physical property from your operations.
How is professional liability different from general liability?
General liability typically addresses third-party bodily injury, property damage, and certain personal or advertising injury claims. Professional liability typically addresses alleged errors, omissions, or negligence in professional services. A consultant who gives bad advice and a contractor who drops a tool on a client's floor are different claim types and usually need different policies.
Is professional liability required by law in Maryland, Virginia, or D.C.?
There is no blanket state or District law that requires every business to carry professional liability insurance. Some licenses, boards, or practice rules may require coverage for a specific occupation. Clients, prime contractors, and government contracts frequently require it even when the statute does not. Confirm any license condition with the authority that issued the license. This guide is not licensing advice.
What is the difference between claims-made and occurrence coverage?
An occurrence policy may cover a claim if the incident happened while the policy was in force, even if the claim is filed later. A claims-made policy typically covers claims first made, and often first reported, during the policy period, usually for services after a retroactive date. Professional liability is commonly written on a claims-made form. Switching insurers or closing a practice may require extended reporting, sometimes called tail coverage.
Does general liability cover professional mistakes?
Generally no. Standard commercial general liability policies typically exclude or do not insure claims that arise from professional services. The District's insurance regulator treats professional liability as a separate coverage from CGL. Businesses that both visit client sites and sell advice often carry both policies.
Who typically considers professional liability coverage?
Attorneys, accountants, consultants, real estate professionals, architects, engineers, IT and cybersecurity firms, and many healthcare-adjacent practices commonly discuss it because their product is advice or a professional service. Solo firms in the DMV face the same client-contract demands as larger shops. A licensed insurance professional can help match a form to your work. This is not a list of who must be licensed or insured.

Sources & References