[Protect & pass on](https://www.helvate.ch/en/insights/categorie/protect-pass-on)# Professional liability insurance: protecting your business against the consequences of a mistake A mistake, an omission or poor advice can cause a client significant financial loss. Professional liability insurance protects the company or the professional when they are held liable in the course of their work. Some professions are particularly exposed to the consequences of an error in the delivery of their services. Unlike business liability insurance, which mainly covers operational risks, professional liability insurance applies when the damage originates in the professional activity itself. Published on 18 September 2026 Updated on 25 September 2026 2 min read [](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.helvate.ch%2Fen%2Finsights%2Fprofessional-liability-insurance-protecting-your-business-against-the-consequences-of-a-mistake) [](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.helvate.ch%2Fen%2Finsights%2Fprofessional-liability-insurance-protecting-your-business-against-the-consequences-of-a-mistake&text=Professional+liability+insurance%3A+protecting+your+business+against+the+consequences+of+a+mistake) [](mailto:?subject=Professional%20liability%20insurance%3A%20protecting%20your%20business%20against%20the%20consequences%20of%20a%20mistake&body=https%3A%2F%2Fwww.helvate.ch%2Fen%2Finsights%2Fprofessional-liability-insurance-protecting-your-business-against-the-consequences-of-a-mistake) Contents ## What risks can professional liability insurance cover? Professional liability insurance can cover the financial consequences of an error, an omission, negligence or a breach of professional duty, depending on the cover provided in the policy. Incorrect advice, important information left out, a mistake in a file or failure to comply with certain professional obligations can all lead to a claim for compensation. The insurer then assesses the insured's liability, pays justified claims within the limits of the policy and also helps defend the insured against unjustified claims. ## Who is it for? Professional liability insurance mainly concerns occupations in which an error, an omission, negligence or poor advice can cause financial loss to a client. It is particularly relevant for fiduciary firms, consultants, architects, engineers, IT professionals, accountants, the medical and legal professions and, more broadly, advisory and service activities. As risks vary considerably from one occupation to another, the cover must be tailored to the specific responsibilities of each profession. ## Is professional liability insurance compulsory? Professional liability insurance is not compulsory for all activities in Switzerland. It may, however, be required for certain professions or as a condition of a licence to practise, depending on the applicable legislation and the canton. This applies in particular to certain medical and healthcare professions, lawyers, notaries and some regulated technical activities. Requirements should therefore be checked according to the occupation and the place of practice. ## Professional liability vs business liability: what is the difference? Business liability insurance mainly protects against risks related to the running of the company, its premises, its employees or its products. Professional liability insurance focuses on the consequences of a fault or failure in the service provided. The same company may therefore need both types of protection. How they complement each other depends on its activity and the risks it is actually exposed to. ## Cover tailored to your profession Not all professional liability policies are equal. The declared activities, sums insured, deductible, exclusions, geographical scope of cover and conditions relating to claims must be examined carefully. At [**Helvate**](#cta), we analyse your activity, your responsibilities and the risks specific to your profession in order to determine the cover you need and put in place a suitable policy. [Back to all insights](https://www.helvate.ch/en/insights) Read next## Related articles [ Protect & pass on ### Business liability insurance: protecting your business against damage caused to third parties Published on 18 September 2026 Reading time : 3 min See more ](https://www.helvate.ch/en/insights/business-liability-insurance-protecting-your-business-against-damage-caused-to-third-parties) [ Protect & pass on ### Supplementary insurance: understanding the LCA to choose the right cover Published on 18 September 2026 Reading time : 3 min See more ](https://www.helvate.ch/en/insights/supplementary-insurance-understanding-the-lca-to-choose-the-right-cover) [ Protect & pass on ### LAMal insurance: understanding compulsory health insurance in Switzerland Published on 18 September 2026 Reading time : 3 min See more ](https://www.helvate.ch/en/insights/lamal-insurance-understanding-compulsory-health-insurance-in-switzerland) A free initial conversation## Let's discuss your needs, simply. Tell us about your situation, and we'll take it from there. - Full analysis - Response within 24h - No obligation Thank you! Your request has been noted — a Helvate advisor will get back to you shortly. [+41 22 342 55 55](tel:+41223425555) [contact@helvate.ch](mailto:contact@helvate.ch)