How to Start an Interpreting or Translation Business in the UK

If you are fluent in two or more languages, freelance translation and interpreting offer flexible, well-paid self-employment. The UK market spans legal, medical, technical, literary, and business translation, with demand growing as international trade and immigration continue.

Qualifications

No mandatory qualifications, but professional credentials are essential for higher-paying work:

• DPSI (Diploma in Public Service Interpreting) — for legal and medical interpreting
• DipTrans — the Chartered Institute of Linguists diploma in translation
• MA in Translation or Interpreting — from a recognised university
• NRPSI registration (National Register of Public Service Interpreters) — essential for court and public service interpreting
• ITI membership (Institute of Translation and Interpreting) — the leading UK professional body
• CIOL membership (Chartered Institute of Linguists)

For court interpreting, you must be on the NRPSI and meet the Ministry of Justice requirements.

Sole Trader or Limited Company?

Almost all freelance translators and interpreters start as sole traders. The business model is straightforward — you provide services and invoice clients or agencies. A limited company is rarely needed unless your earnings are very high.

Registering with HMRC

Register for Self Assessment within three months. VAT at £90,000 turnover.

VAT on language services is complicated:

• Translation services supplied to UK businesses — standard-rated (20%)
• Translation services supplied to businesses outside the UK — zero-rated (outside the scope of UK VAT)
• Interpreting services — generally follow the same rules

If a significant portion of your work is for overseas clients, you may be below the effective VAT threshold even if your total turnover exceeds £90,000, because zero-rated supplies do not count towards the threshold in the same way. Take professional advice on this.

Insurance

• Professional indemnity — essential. A translation error in a legal or medical context could have serious consequences. Cover costs £150–£400 per year.
• Public liability — if you attend client premises for interpreting assignments
• Cyber insurance — if you handle confidential documents

Claimable Expenses

• Software — translation memory tools (SDL Trados, MemoQ, Wordfast), CAT tools, dictionaries, glossary databases
• Reference materials — specialist dictionaries, technical publications, online databases
• Home office costs — flat rate or actual proportion
• Computer and equipment — laptop, monitor, headset, webcam (for remote interpreting)
• Professional memberships — ITI, CIOL, NRPSI
• Training and CPD — language courses, specialist terminology workshops, conferences
• Travel — to interpreting assignments, at 45p per mile or actual costs
• Phone and broadband
• Marketing — website, professional directories, LinkedIn
• Accountancy fees
• DBS checks — if required for public service interpreting

Accounted tracks your expenses automatically and keeps everything categorised for your tax return.

Setting Your Rates

• Translation — £0.08–£0.15 per source word (standard commercial), up to £0.20+ for specialist or legal translation
• Interpreting — £150–£400 per day for public service, £400–£800+ for conference interpreting
• Proofreading/editing — £0.04–£0.08 per word
• Transcription — £1–£2.50 per audio minute

Rates vary enormously by language pair, specialism, and whether you work through agencies (lower rates) or directly with clients (higher rates).

Industry-Specific Tax Considerations

Overseas Client Income

Income from overseas clients is still UK-taxable. However, the VAT treatment differs — services to business customers outside the UK are generally outside the scope of UK VAT. Keep clear records of where your clients are based.

Exchange Rate Gains and Losses

If you invoice in foreign currencies, exchange rate fluctuations create gains or losses. These are taxable or deductible. Record the sterling equivalent of each invoice at the exchange rate on the date of the invoice, and separately record any gain or loss when payment is received at a different rate.

Home Office

Many translators work exclusively from home. Claim the appropriate proportion of household costs — for a dedicated home office used full-time, this can be a significant deduction.

Building Your Client Base

• Translation agencies — the main source of work for new translators. Register with reputable agencies.
• Direct clients — higher rates but harder to find initially. Target law firms, marketing agencies, and businesses in your specialist sector.
• Professional directories — ITI, CIOL, and ProZ.com directories
• Networking — attend ITI and CIOL events
• Specialisation — specialist translators (legal, medical, technical, financial) command higher rates
• LinkedIn — connect with potential direct clients in your target industries

Bookkeeping Tips

• Separate business and personal finances
• Track work by client and language pair — understand where your income comes from
• Record exchange rates — for foreign currency invoices
• Invoice promptly — agencies typically pay on 30-60 day terms
• Set aside 25–30% of profits for tax

Accounted connects to your bank and uses AI to categorise transactions. Perfect for UK freelancers.

Key Deadlines

• 31 January — Self Assessment and payment
• 31 July — second payment on account
• Quarterly — VAT returns if registered

Getting Started

Freelance translation and interpreting offer flexible, intellectually rewarding self-employment. Build your professional credentials, register with agencies, and keep your finances in order from the start.

Ready to translate your skills into a thriving business? Sign up for Accounted and let Penny handle the bookkeeping while you focus on your languages.