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Professional Malpractice Case Value Calculator

Calculate the value of a professional malpractice case against an attorney, accountant, financial advisor, or other licensed professional. Our calculator applies your documented financial losses and state malpractice rules.

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Frequently Asked Questions

Types of Professional Malpractice

Professional malpractice covers licensed professionals whose errors cause financial (rather than physical) harm.

  • Legal malpractice

    An attorney’s error — a missed deadline, bad advice, or conflict — that costs you a case or a right.

  • Accounting malpractice

    Negligent audits, tax preparation, or financial statements causing losses or penalties.

  • Financial-advisor malpractice

    Unsuitable investments, misrepresentation, or breach of fiduciary duty.

  • Architect/engineer errors

    Design or inspection failures causing construction losses or defects.

Proving Professional Malpractice

  1. 1

    Duty

    A professional relationship created a duty to meet the standard of the profession.

  2. 2

    Breach

    The professional fell below that standard — established almost always by an expert in the same field.

  3. 3

    Causation ("case within a case")

    For legal malpractice, you must show you would have won the underlying matter but for the error.

  4. 4

    Damages

    A quantifiable financial loss traceable to the mistake.

What You Can Recover

  • Direct financial loss

    What you lost — or failed to gain — because of the professional’s error.

  • Consequential damages

    Related losses that flowed from the mistake, such as penalties or lost opportunities.

  • Sometimes fee forfeiture

    Return of fees paid to the negligent professional, depending on the claim.

Punitive damages are uncommon in malpractice; recovery is usually tied to your provable economic loss.

The Expert Requirement

You can’t prove professional malpractice with your own opinion of the work.

Almost every professional-malpractice claim requires testimony from another professional in the same field establishing what the standard of care was and how it was breached. Many states also require a certificate of merit at filing. Engagement letters, billing records, and the professional’s file are the core evidence — and deadlines often run from when you discovered the error.

Recommended Reading

Legal Disclaimer

Information on this page reflects current state laws as of 2026-03-07. This tool provides estimates for informational purposes only and does not constitute legal advice. Verify current rules with a licensed attorney before making decisions about your case. Learn about our methodology.

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