Translation & interpreting · PII
PI insurance for UK translators, interpreters and language-service providers
Reviewed by Matthew Bartlett, Director, Apex Insurance Brokers Limited · Published 14 July 2026
Professional translation and interpreting is a growing UK service sector with distinctive PI considerations. Legal, medical, financial and technical translation each carry specific exposure. This page maps the market.
Who this applies to
- Freelance translators in written translation for legal, medical, technical, literary and other domains.
- Interpreters in simultaneous, consecutive, court, medical, community and business contexts.
- Language-service firms providing translation and interpreting at scale.
- Certified translators for official documents.
- DPSI (Diploma in Public Service Interpreting) and other qualified interpreters serving courts, NHS, immigration.
Professional-body context
- ITI (Institute of Translation and Interpreting).
- CIOL (Chartered Institute of Linguists).
- DPSI qualification for public-service interpreting.
- NRPSI (National Register of Public Service Interpreters).
- Voluntary standards rather than statutory regulation.
Common claim triggers
- Translation errors. Legal contract misrendered; medical translation error affects treatment; financial translation misleads.
- Interpreter errors in court. Testimony misrepresented; procedural mistake.
- Missed deadlines. Time-critical translation late.
- Confidentiality breaches. Sensitive content shared inappropriately.
- Certification errors. Official document translation incorrectly certified.
Cover-sizing
- Individual translator or interpreter — typically £250k-£1m.
- Small language-service firm — £500k-£2m.
- Larger firm serving corporate clients — £2m-£5m.
- Court and medical interpreting specifically — often at the higher end.
- Certified translation of high-value documents — sizing reflects individual document value.
Frequently asked
Do UK translators need PI insurance?
For most professional translators, yes. Client contracts commonly require it. Court, medical and legal translation particularly need cover. Freelance platforms often require it as a booking condition.
How much PI cover do translators typically hold?
£250k-£1m per claim. Higher for court and legal translators. Language-service firms materially higher based on scale.
Does PI cover interpreter errors in court?
Standard interpreter PI covers civil-liability from interpreting errors. Immunity considerations similar to expert witnesses — Post-Jones v Kaney, more limited than previously.
What about certified translation of official documents?
Certification adds a specific dimension. Errors in officially-certified translations can trigger claims from courts, government bodies, immigration authorities. Cover should address certified-work specifically.
Do I need cover for translation in specific domains like medical or legal?
Standard translation PI typically covers domain-specific work. High-risk domains (medical, pharmaceutical, legal) may attract higher rating. Specialist wording sometimes helpful.
Are language-service firms different from freelance translators?
Yes. Language-service firms carry firm-level PI covering the firm's activities; freelance translators carry individual PI. Firms also carry employer's liability and other cover.
What is DPSI and how does it affect PI?
Diploma in Public Service Interpreting is a UK qualification for court, immigration and medical interpreting. DPSI-qualified interpreters attract different insurer view given the specialist context.
Do I need cover for machine-translation-assisted work?
Standard PI covers professional work regardless of tools used. Where machine translation is used with human review, PI covers the human professional element. AI-assisted translation increasingly a specific underwriting question.