Australia’s Multilingual Communication Partner
Certified Translation Services Across Australia by NAATI-Certified Translators
Interlingual is an Australian translation agency providing certified document translation by NAATI-certified translators in more than 190 languages for government agencies, businesses and culturally diverse communities. Our certified translations are prepared for submission to Australian courts, government departments and institutions, with standard, express and 24-hour turnaround options.
No obligation · Fast response
Same day
Express turnaround available
Document translation services
Explore our document translation services and request a quote for your language and deadline.
Personal and identity documents
Education documents
Visa, police and legal documents
Medical and financial documents
Business and community materials
How to order a NAATI-certified translation
- Send your document. Provide a clear copy, the source and required translation languages, the receiving organisation and your deadline.
- Receive your quote. We confirm a fixed price and turnaround before work starts.
- Translation and certification. A NAATI-certified translator translates your document and applies their NAATI stamp to certify the translation.
- Receive your translation. Receive your translation in the delivery format agreed in your quote.
Interlingual is a NAATI-endorsed language service provider.
Why Australian Organisations Choose Interlingual
Trusted by Government, Healthcare and Corporate Australia
Government agencies, hospitals, universities, legal firms and businesses across Australia rely on Interlingual for accurate, NAATI-certified translation. We understand the standards, language and compliance requirements of your sector, and we can also provide NAATI certified interpreters for appointments, hearings, meetings and events.
See our multilingual health translation work for the Ethnic Communities Council of Queensland.
Industry Specialists, Not Just Translators
Our translators are specialists in your field — not just fluent in the language. Government policy, medical records, legal contracts and technical documents all require deep subject matter knowledge. Every project is matched to a translator who works in your sector.
190+ Languages. Every Sector. Australia-Wide.
From Mandarin to Arabic, Vietnamese to Dari — we cover the languages your community, clients or stakeholders speak. With 8,000+ linguists across Australia, we can staff projects in multiple languages simultaneously and at scale.
Confidential, Secure and Compliant
Every document we handle is treated with the highest level of confidentiality. Our translators sign strict confidentiality agreements, files are transferred through secure channels, and all data is handled in compliance with Australian privacy standards. We regularly work with sensitive government briefs, protected health information and legal documents.
• What we translate
NAATI-Certified Translations for Every Industry and Project Type
Our translators are sector specialists, not just language experts. Whether you need a government policy translated into 20 languages or a healthcare information sheet for CALD communities, every project is matched to a translator with direct expertise in your field.
Legal translation
Contracts, affidavits, court orders, statutory declarations, and legal correspondence are translated with accuracy for Australian courts and legal institutions.
Migration & visa translation
Birth certificates, marriage certificates, police clearances, and visa application documents are translated by NAATI-certified translators for visa and migration applications.
Business & corporate translation
Annual reports, marketing materials, website content, contracts, HR documents, and internal communications are professionally translated for Australian and international markets.
Technical & scientific translation
Engineering manuals, research papers, safety data sheets, IT documentation, and scientific reports are translated by specialists who understand your field’s terminology. We also provide patent translation.
Community & CALD
translation
Government, NFP, and health organisations trust us to reach Australia’s CALD communities in 190+ languages with accurate translation and cultural understanding, not just word-for-word conversion. We also translate fact sheets and posters.
Education & academic translation
Academic transcripts, research papers, enrolment documents, and university correspondence are accurately translated for educational institutions across Australia.
• Plans
Flexible Turnaround Options for Every Project
Whether you need a large-scale multilingual project completed over several weeks or an urgent document by tomorrow, we have a turnaround plan that fits. All options include NAATI-certified translators and dedicated project management.
5 business days
Best value for non-urgent documents. Ideal for personal, legal, and migration documents with no hard deadline.
- NAATI-certified translator
- Proofread before delivery
- No additional surcharge
- Hard copy + electronic copy delivered
- Most requested
3 business days
Our most requested option offers faster turnaround times while maintaining the same NAATI-certified quality standards.
- NAATI-certified translator
- Proofread before delivery
- Hard copy + electronic copy delivered
- Pre-assessment of word count required
- 30% express surcharge applies
24 hours
For time-sensitive documents that can’t wait, visa deadlines, court submissions, and emergency applications.
- NAATI-certified translator
- Electronic copy delivered in 24 hrs
- Pre-assessment of quantity required
- Subject to translator availability
- 50% urgent surcharge applies
Quick comparison
Service
Standard
Express
Urgent
Turnaround
5 business days
3 business days
24 hours
Hard copy included
Yes
Yes
Electronic only
Surcharge
None
+30%
+50%
NAATI certified
Service
Yes
Yes
Pre-assessment needed
No
Yes
Yes
Quick comparison
Standard
Turnaround
5 business days
Hard copy
Yes
Surcharge
None
NAATI certified
Yes
Pre-assessment
Yes
Express
Turnaround
3 business days
Hard copy
Yes
Surcharge
+30%
NAATI certified
Yes
Pre-assessment
Yes
Urgent
Turnaround
24 hours
Hard copy
Electronic only
Surcharge
+50%
NAATI certified
Yes
Pre-assessment
Yes
• 17 Years · 190+ Languages · 8,000+ Linguists
Trusted by Government, Healthcare and Corporate Organisations Across Australia
• Our work
Take a look at some of our work
• FAQs
Common Questions from Procurement and Project Teams
What is a NAATI-certified translation?
A NAATI-certified translation is completed and certified by a translator who holds current NAATI translator certification for the relevant language direction. NAATI certifies practitioners, not individual documents: the translator certifies their own translation by applying their NAATI stamp, which identifies them and their credential.
How can the translator’s NAATI credential be checked?
Anyone receiving the translation can verify the translator on NAATI’s website using the practitioner number shown on the stamp, or by scanning the QR code on a digital stamp. See NAATI’s guidance on practitioner identification.
What types of files do you accept?
Do all Australian authorities accept your translations?
Each organisation sets its own requirements, and the decision to accept a document rests with the organisation receiving it. As one example, the Department of Home Affairs asks for an English translation of documents in other languages: its guidance says translators in Australia should be accredited by NAATI, and translators outside Australia should be qualified and include their full name, address, phone number and qualifications on the translation. Tell us which organisation will receive the translation and include any translation requirements with your quote request.
Is a certified translation the same as a certified copy?
No. A certified translation is the translator’s confirmation that the translated text is accurate. A certified copy is a copy of your original document that an authorised person has confirmed is a true copy. Some organisations ask for both, so check what yours requires.
How long does a certified translation take?
Standard turnaround is 5 business days with a hard copy included. Express (3 business days, +30%) and Urgent (24 hours, electronic copy, +50%) options are available, and same-day service can be arranged for short documents.
How much does a certified translation cost?
Pricing depends on the language pair, the length and type of document, whether certification is required and the turnaround you choose. Send us the document through the free quote form and we will confirm a fixed price before any work starts.
Can you translate documents from anywhere in Australia?
Yes. Documents are sent securely online and certified translations are delivered electronically, with hard copies posted when required, so we work with clients in every Australian state and territory as well as overseas.
