Contract Translation Services

What are contract translation services and when do UK businesses need them?

Contract translation services are certified conversions of commercial or personal agreements into another language by qualified legal linguists, produced under ISO 17100 with a signed certificate of accuracy accepted by UK solicitors, courts, HMRC and overseas counterparties.

What types of contracts and agreements do we translate?

We translate every commercial and personal contract type in use in the UK, including NDAs, employment contracts, shareholder agreements, SPAs, SLAs, tenancy agreements, distribution and licence agreements, plus the schedules, annexes and side letters attached to them.

What is a certified contract translation and when is it needed?

A certified contract translation is a translated contract accompanied by a signed statement of accuracy from a CIOL or ITI-registered translator or an ATC-member company, required whenever the contract is filed with UK courts, submitted to the Home Office, used in arbitration or presented to a regulator.

How much do contract translation services cost in the UK?

Contract translation in the UK costs £0.10–£0.20 per source word depending on language pair and subject, or from £25 per short personal document; same-day and weekend delivery adds a 30–50% surcharge, and a signed certificate of accuracy is included at no extra cost.

How long does it take to translate a contract?

Standard turnaround is 2–3 working days for every contract type, regardless of whether the document is single-page or multi-page; large multi-schedule agreements and specialist subject matter are quoted individually, and same-day delivery is available at a 30–50% surcharge.

How is confidentiality ensured for contract translations?

Confidentiality is enforced through a mutual NDA on request, UK GDPR-compliant handling under the General Data Protection Regulation, encrypted file transfer, a named in-house project manager, and vetted CIOL/ITI-registered translators bound by professional codes of conduct.

Contract Translation Services is a certified legal translation service that converts commercial and personal contracts and agreements between English and 150+ languages, produced under ISO 17100 with a signed certificate of accuracy from a CIOL or ITI-registered translator. The service covers NDAs, employment contracts, shareholder agreements, SPAs, SLAs, tenancy agreements, distribution and licence contracts, plus every schedule and annexe attached to them. This page sits within our wider Document Translation UK: Certified Services for Visas, Legal, Academic and Business Documents hub.

What are contract translation services and when do UK businesses need them?

Contract translation services are certified conversions of commercial or personal agreements into another language by qualified legal linguists, produced under ISO 17100 with a signed certificate of accuracy accepted by UK solicitors, courts, HMRC and overseas counterparties. UK businesses need contract translation for cross-border deals, foreign hires, litigation exhibits and Home Office filings. Every contract translated by us carries a second-linguist QC pass and a signed statement from a CIOL or ITI translator.

Who commissions contract translation in the UK?

Contract translation is commissioned by UK solicitors, in-house legal teams, HR departments, corporate M&A advisers, shareholders relocating internationally, and individuals dealing with foreign employment, tenancy or family agreements. Law firms use us as an outsourced legal translation service for exhibits and disclosure. In-house counsel and HR commission employment contracts and NDAs. Private clients bring tenancy, loan and prenuptial contracts.

How does contract translation differ from general legal translation?

Contract translation is a clause-consistency discipline: defined terms, cross-references, schedules and governing-law wording stay identical across every occurrence. General legal translation covers judgments, statutes and correspondence without the same internal-reference load. A contract translated with inconsistent defined terms is legally unsafe. Our linguists lock defined terms into a project glossary before drafting a single clause.

What types of contracts and agreements can be translated?

We translate every commercial and personal contract type in use in the UK, including NDAs, employment contracts, shareholder agreements, SPAs, SLAs, tenancy agreements, distribution and licence agreements, plus the schedules, annexes and side letters attached to them. The table below lists the eight most common contract families, typical word counts and standard turnaround in GBP terms.

Contract type	Typical word count	Standard turnaround	Price band
NDA (mutual or unilateral)	800–2,500	2–3 working days	£0.10–£0.20/word
Employment contract	2,000–6,000	2–3 working days	£0.10–£0.20/word
Shareholder agreement	8,000–20,000	2–3 working days (quoted)	£0.10–£0.20/word
SPA (share purchase agreement)	15,000–40,000	Quoted individually	£0.10–£0.20/word
SLA	3,000–8,000	2–3 working days	£0.10–£0.20/word
Tenancy agreement	3,000–7,000	2–3 working days	from £25 (short) or per word
Distribution / licence agreement	5,000–15,000	2–3 working days (quoted)	£0.10–£0.20/word
Joint-venture heads of terms	1,500–4,000	2–3 working days	£0.10–£0.20/word

Which commercial contracts and business agreements can be translated?

Commercial contracts we translate include share purchase agreements, shareholder agreements, distribution and reseller contracts, SLAs, supply agreements, franchise agreements, licence agreements and joint-venture heads of terms. We also handle side letters, deeds of adherence and amendment agreements. Every commercial business contract translated by us is quoted per source word in GBP after review of the draft contract.

How are employment contracts and HR agreements translated?

Employment contracts are translated with the statutory particulars intact — job title, pay, hours, notice, restrictive covenants and governing law — using UK employment-law terminology or the equivalent civil-law wording in the target language. Our HR clients rely on us for offer letters, settlement agreements and staff handbooks in parallel-language format for signature by international hires.

How are NDAs and confidentiality agreements translated?

NDAs and confidentiality agreements are translated with mutual/unilateral status, defined 'Confidential Information', term, carve-outs and governing-law wording carried across accurately. We sign a mutual NDA with the client before work begins on request. Every NDA is checked by a second linguist under ISO 17100 before delivery.

Can tenancy agreements and personal contracts be translated?

Yes — tenancy agreements, prenuptial agreements, loan agreements and personal service contracts are translated as certified documents accepted by UK letting agents, solicitors and the Home Office. Short personal contracts are quoted as a fixed price from £25 per document.

Can schedules, annexes and bilingual contracts be translated?

We translate schedules, annexes, appendices and side letters as part of the main contract, and produce parallel-language bilingual layouts where both language versions must appear side by side for signature. Where a schedule carries specifications, safety data sheets or regulatory annexes, our Technical Translation team handles that portion under the same ISO 17100 workflow.

What is a certified contract translation and when is it needed?

A certified contract translation is a translated contract accompanied by a signed statement of accuracy from a CIOL or ITI-registered translator or an ATC-member company, required whenever the contract is filed with UK courts, submitted to the Home Office, used in arbitration or presented to a regulator. The distinctions between certified, notarised, sworn and apostilled are explained in depth on our Certified Translation page.

Do contracts need a certified translation for use in UK courts and arbitration?

Yes — a translated contract used in evidence before UK courts, tribunals or arbitration panels must carry a signed certificate of accuracy, and we include that signed certificate on company letterhead in every certified contract translation at no extra cost. UK courts, employment tribunals and arbitration panels accept certified human translations without further formality.

Can a solicitor certify a translation?

A solicitor does not certify a translation. A solicitor can notarise it by witnessing the translator's signature, but the certification itself is issued by a CIOL or ITI-registered translator or an ATC-member translation company. Their signed accuracy statement is what UK authorities accept.

Are sworn translations needed for UK contracts?

Sworn translations are not a UK legal category. UK contracts are certified by a professional translator. Sworn translations are produced only when the contract is destined for a civil-law jurisdiction such as Spain, France or Germany, where a court-appointed sworn translator is required.

How much do contract translation services cost in the UK?

Contract translation in the UK costs £0.10–£0.20 per source word depending on language pair and subject, or from £25 per short personal document. Same-day and weekend delivery adds a 30–50% surcharge. A signed certificate of accuracy is included at no extra cost.

Pricing model	Rate	Applies to
Per source word	£0.10–£0.20	Long contracts and agreements
Fixed price per document	from £25	Short personal contracts
Urgency surcharge	+30–50%	Same-day and weekend delivery
Certificate of accuracy	£0	Included in every certified job

What factors affect the cost of contract translation?

Four factors move contract translation price: language pair rarity, subject-matter complexity, contract length beyond 250 words, and urgency. Same-day or weekend delivery adds a 30–50% surcharge on the base rate. Legal and financial subject matter sits at the higher end of the £0.10–£0.20 band.

How is a contract translation quoted — per word, per page or fixed fee?

Long contracts are quoted per source word at £0.10–£0.20. Short personal contracts are quoted as a fixed price from £25 per document. Complex multi-schedule agreements are quoted individually after review of the draft contract, depending on the project length and complexity.

Is VAT charged on contract translation for UK businesses?

UK VAT is charged at the standard rate on contract translation supplied to UK-established clients. Supplies to overseas business clients are typically outside the scope of UK VAT under the general place-of-supply rule. VAT is shown separately on every invoice.

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How long does it take to translate a contract?

Standard turnaround is 2–3 working days for every contract type, regardless of whether the document is single-page or multi-page. Large multi-schedule agreements and specialist subject matter are quoted individually. Same-day delivery is available at a 30–50% surcharge.

1. Send the draft contract by email or online quote form.
2. Receive a fixed GBP quote and deadline within one working hour.
3. Approve the quote and confirm the delivery format.
4. Translation begins with a named legal linguist.
5. Second-linguist QC pass under ISO 17100.
6. Delivery of the translated contract and signed certificate.

How are urgent contract translation deadlines handled?

Urgent contracts are placed on same-day or weekend delivery at a 30–50% surcharge, with a named project manager, a dedicated legal linguist and a second-linguist QC pass compressed into a same-day ISO 17100 workflow. No stage is skipped, even under a tight deadline.

Can you translate a draft contract before it is signed?

Yes — we translate draft contracts under version control, tracking clause renumbering and redlines between drafts so that the final signed version and its translation stay clause-for-clause consistent. Every version is logged in the project translation memory.

How is confidentiality ensured for contract translations?

Confidentiality is enforced through a mutual NDA on request, UK GDPR-compliant handling under the General Data Protection Regulation, encrypted file transfer, a named in-house project manager, and vetted CIOL/ITI-registered translators bound by professional codes of conduct. The controls sit on top of our ISO 17100 workflow.

Do translation agencies sign an NDA before starting a contract translation?

We sign a mutual NDA on request before receiving the source contract. Every translator, reviser and project manager on the file is already bound by the CIOL or ITI code of professional conduct and by our internal confidentiality agreements. Our organisation applies the same NDA process for law firms and private clients.

How does a translation agency comply with UK GDPR when handling contract data?

Contract files are stored on UK-hosted encrypted servers. Access is role-limited, retention is time-boxed, and personal data is processed under a UK GDPR-compliant data processing agreement provided on request. The DPA covers legal documentation containing salary, address, ID and family data.

Can AI or ChatGPT be used for contract translation?

AI tools like ChatGPT are not accepted for legally binding contract translations. They cannot sign a certificate of accuracy, cannot be verified against a professional register, and produce clause and defined-term errors that fail court and Home Office scrutiny. Human ISO 17100 post-editing is required before any MT draft is admissible.

Where can machine translation help in the contract workflow?

Machine translation is useful for internal gisting of an inbound foreign-language contract, for triage during due diligence, and as a draft input to a human ISO 17100 post-editing workflow. It is never used as the final signature version. A qualified translator or interpreter always finishes the job.

Human contract translation vs ChatGPT: what UK regulators accept

UK courts, the Home Office, HMRC and arbitration panels accept certified human translations signed by a CIOL/ITI-registered translator. They do not accept ChatGPT output. A translated contract without a verifiable human signature is routinely rejected.

Criterion	Human certified translation	ChatGPT / raw MT
Signed certificate of accuracy	Yes	No
Accepted by UK courts and HMRC	Yes	No
Verifiable CIOL/ITI translator	Yes	No
Defined-term consistency	Locked in glossary	Drifts across the file
Suitable use	Signature and filing	Internal gisting only

What languages are available for contract translation?

Contract translation is available across 150+ languages, covering every major commercial pair including French, German, Spanish, Italian, Portuguese, Polish, Romanian, Arabic, Mandarin, Japanese, Russian, Turkish and Ukrainian. Our multilingual network of professional legal linguists spans both UK-requested pairs and the full range of international jurisdictions — meaning whether your counterparty is based in São Paulo, Shanghai or Warsaw, we hold a qualified specialist for that language combination. Rarer or lower-resource language pairs are quoted individually, and availability is confirmed at the point of enquiry so there are no surprises once work begins.

Each year our team translates well over 20 million words, and that volume is spread across more than 150 languages — giving us active, tested capacity far beyond the core European pairs most agencies cover. That breadth matters for contracts: a shareholder agreement governed by UAE law, a joint-venture deed subject to Chinese company regulations, or a lease tied to Polish civil-law requirements each demands a translator who knows both the language and the legal framework behind it. We assign linguists accordingly, matching subject-matter specialism to the jurisdiction as well as the language.

Are the translators native speakers and legal specialists?

Every contract is translated by a native speaker of the target language who also holds recognised expertise in legal translation, then independently checked by a second linguist under an ISO 17100 quality workflow. Native-speaker competence is non-negotiable for legal work: the subtle register differences between, say, a binding obligation and a best-endeavours clause must land correctly in the target legal culture, not merely in the target language. The two-stage review process — translator then reviewer — means every terminology choice and every formatting convention is verified before the document reaches you.

How are defined terms and clause references kept consistent in contract translation?

Defined terms are locked into a project-specific translation memory and glossary at the start of the file. Every subsequent occurrence — in clauses, schedules and cross-references — is enforced against that glossary before the second-linguist QC pass. This is the core of our commitment to quality on contract documents.

Can you deliver an editable Word translation and preserve formatting?

Contracts are delivered in editable Word by default, matching the source format — clause numbering, tables, signature blocks and stamps. PDF or bilingual side-by-side layouts are available on request. The default delivery format is editable Word plus a signed PDF certificate of accuracy.

Can you translate only selected clauses of a contract?

Yes — we translate individual clauses, extracts or specific schedules of a contract, quoted per source word from £0.10, with the same certified statement of accuracy covering the extracted portion. Partial-clause work is useful during redline review.

Can you request revisions after delivery?

Revisions after delivery are handled free of charge where the client identifies factual, formatting or preference changes to the translated document within 14 days of delivery. Revision is logged against the original project file.

Who translates contracts and what accreditation do they hold?

Contracts are translated exclusively by CIOL- or ITI-registered legal linguists who are qualified in the target language and in the contract's subject specialism — commercial, employment, property, finance or otherwise. Every assignment is managed under an ATC-member ISO 17100 workflow, which requires a mandatory second-linguist quality-control pass on every job before delivery. That two-stage process is not optional: ISO 17100 defines it as the minimum acceptable standard for professional translation, and we apply it without exception regardless of document length or urgency.

Accreditation is the foundation of certified contract translation. A signed certificate of accuracy — issued on company letterhead and included at no extra cost — confirms that the finished translation is a true and accurate rendering of the source document. That certificate is what makes a translated contract legally usable for UK courts, regulatory bodies, and government departments. Our translators' membership of CIOL and ITI, combined with our own ATC membership, means the certification carries recognised professional authority.

• Chartered Institute of Linguists (CIOL) — the UK's chartered professional body for language practitioners; membership signals verified linguistic and ethical standards.
• Institute of Translation and Interpreting (ITI) — a leading professional association for translators, with a code of conduct covering accuracy and confidentiality.
• Association of Translation Companies (ATC) — the UK trade body for translation agencies, whose members commit to quality and professional practice standards.
• ISO 17100 — the international standard governing translation service quality, including translator competence, project management and review processes.

Beyond the core contract translation team, the same accreditation framework covers adjacent financial translation and interpreting services for negotiations, signings and due-diligence sessions — all delivered under the same professional standards and confidentiality obligations.

How can I get a quote for contract translation services?

Send the draft contract or signed agreement to our London office by email or via the online quote form and receive a fixed GBP quote, turnaround and delivery format within one working hour. We reply from Suite 544, Unit B, 63-66 Hatton Garden, London EC1N 8LE, Monday to Saturday 9:00–18:00, on +44 20 4569 1419. This is where UK businesses get a fast and accurate quote for their translation needs.

What information is needed to quote a contract translation?

To quote your contract translation we need the source and target languages, the draft contract or signed PDF, the required delivery format, the deadline and whether a certified, notarised or apostilled version is required. Larger international business projects are scoped against length and complexity before a fixed fee is confirmed.

How is the translated contract delivered?

Translated contracts are delivered by secure email as an editable Word document and a signed PDF certificate of accuracy. Hard-copy delivery from our London EC1N office is available on request. Every contract translated by us is issued with a signed statement so that clients can complete the translation loop and file the document for legal use or official purposes on the same day.