NAATI certified vs uncertified translation: which one do you actually need?
If a document of yours is in a language other than English, sooner or later someone in Australia will ask for a translation. The question that trips people up is whether that translation needs to be NAATI certified or whether any decent translation will do.
The short answer: for almost anything official, you need a NAATI certified translation. For your own understanding or for informal use, an uncertified one is fine. Below we set out exactly where the line sits, department by department, so you do not pay for certification you do not need, and you do not get a visa application delayed because you cut a corner you should not have.
What "certified" actually means in Australia
In Australia, a certified translation is one produced by a translator who holds a current credential from NAATI, the National Accreditation Authority for Translators and Interpreters. NAATI is the national standards body for the profession, and it is the benchmark that government departments point to.
A NAATI certified translation includes three things on the document itself:
- the translator's NAATI credential number
- a signed statement that the translation is a true and accurate rendering of the original
- the translator's stamp or seal
That credential number matters. It lets any department, court, or institution check the translator's identity and qualification through NAATI's public directory. The translation is traceable back to a named, accountable professional.
This is worth flagging because "certified translation" means different things in different countries. In some places it refers to a sworn translation made before a court, in others to a notarised document. In Australia the relevant standard is NAATI. A translation certified by an overseas body, even a respected one, is generally not accepted by Australian government departments as a substitute.
What counts as uncertified
An uncertified translation is anything not produced by a NAATI certified translator. That covers a wide range:
- a translation done by a friend, family member, or bilingual colleague
- the output of a machine tool such as Google Translate or DeepL
- a translation by a professional translator who does not hold a NAATI credential
- a translation certified by an overseas authority or notarised abroad
None of these are wrong in a general sense. They may be perfectly accurate. The issue is purely procedural: Australian institutions need the NAATI credential as proof of accountability, and an uncertified translation does not carry it.
When NAATI certification is required
This is the part that costs people time and money when they get it wrong. The following bodies require, or strongly prefer, NAATI certified translations.
| Department or institution | NAATI required | Context |
|---|---|---|
| Department of Home Affairs | Yes | All visa types: skilled, partner, parent, student, visitor. Non-English documents must be NAATI certified. |
| Administrative Review Tribunal | Yes | Visa refusal appeals and migration reviews require certified document translations. |
| State and territory courts | Yes | Foreign-language evidence submitted to a court must be translated by a NAATI certified translator. |
| Skills assessment authorities | Yes | VETASSESS, ACS, Engineers Australia, TRA, ANMAC and others require NAATI translations of overseas qualifications. |
| Births, deaths and marriages registries | Yes | Registering an overseas birth, marriage, or death in Australia needs NAATI translations of the foreign certificate. |
| Roads and licensing authorities | Varies | Most states accept a NAATI translation for converting an overseas licence. NSW runs its own approved process. |
| Universities and TAFEs | Yes | Overseas transcripts and qualifications for admission or credit transfer. |
| AHPRA | Yes | Overseas medical, nursing, and allied health qualifications for practitioner registration. |
A quick note on the tribunal name. The body that hears visa refusal appeals was the Administrative Appeals Tribunal (AAT). It was replaced by the Administrative Review Tribunal (ART) in October 2024. Either way, certified translations are required for foreign-language evidence.
If your situation touches any of the rows above, treat NAATI certification as mandatory rather than optional. The cost of certification is small next to the cost of a stalled visa application.
When an uncertified translation is fine
You do not need to pay for certification in every case. An uncertified translation is acceptable when the purpose is informal or internal:
- Personal understanding. If you just want to know what a document says, any translation method works.
- Internal business use. A company reviewing a foreign invoice or contract for its own purposes does not need NAATI.
- Informal correspondence. Personal letters and emails carry no certification requirement.
- Some private sector requests. Employers, landlords, and private organisations can accept uncertified translations at their own discretion. Ask them before you spend money.
The deciding factor is who is on the receiving end. A government department, court, or regulated authority needs NAATI. A private party can choose.
The legal weight of a NAATI translation
A NAATI certified translation is not just a formality with a stamp on it. It carries genuine standing in administrative and legal settings, for a few reasons.
Courts and tribunals treat it as an accurate rendering of the original without requiring further proof. The translator's credential backs that presumption. NAATI certified translators are bound by the AUSIT Code of Ethics and can face professional consequences for inaccurate work, which is what gives the certification its accountability. And because every certified translation carries a credential number, the translator's identity and qualification can be verified at any time. In practice, this means a NAATI translation is admitted as evidence without the translator needing to appear in person, except in rare contested cases.
Common misconceptions
A few beliefs come up again and again, and each one can cost you a rejected document.
"My bilingual friend can certify it." Language fluency is not the same as certification. In Australia only a NAATI credentialed practitioner can produce a certified translation, regardless of how good someone's second language is.
"A notarised translation is the same thing." Having a translation witnessed by a Justice of the Peace or notary does not make it NAATI certified. Departments require the translator to hold the credential. Notarisation alone is not enough.
"My overseas certified translation will be accepted." Translations certified abroad, including by reputable bodies in other countries, are generally not recognised here. You will usually need the document re-translated by a NAATI certified translator.
"Machine translation reviewed by a person counts." A certified translation must be produced or fully reviewed and endorsed by the NAATI certified translator. A machine translation checked over by a non-NAATI person does not qualify.
What happens if you submit an uncertified translation
Submitting the wrong type of translation rarely ends in an outright rejection on the spot. What usually happens is slower and more frustrating. The Department of Home Affairs, for example, can issue a request for further information asking you to provide a NAATI certified version, which adds weeks to your processing time. In some cases a decision can be made on the evidence available, meaning the untranslated or improperly translated document is simply not taken into account.
For something like a visa, where timing and completeness matter, a delay caused by an uncertified translation is entirely avoidable. Getting it right the first time is cheaper than fixing it later.
How to decide in thirty seconds
Run your document through these two questions:
- Who is asking for it? If it is a government department, court, tribunal, university, or regulated authority, you need NAATI certified. If it is yourself, a private company, or an informal contact, uncertified is fine.
- Is any relevant part in a language other than English? If a document is partly in English but the critical fields are in another language, the non-English content still needs certified translation.
If you land on "certified" for both, that is your answer.
Get a NAATI certified translation
We are a NAATI certified translation service for people dealing with Australian immigration and official processes. If you need a certified translation for a visa, skills assessment, registry, court, or any government purpose, you can upload your document and get a quote in minutes: Get your NAATI certified translation
Frequently asked questions
Can I use a translation from a friend or family member for my visa application? No. The Department of Home Affairs requires non-English documents to be translated by a NAATI certified translator. A translation by a friend or family member is not accepted, no matter how fluent they are.
Is a notarised translation accepted in Australia? Notarisation does not make a translation NAATI certified. Government departments require the translator to hold the credential, so notarisation on its own is not sufficient.
Are translations certified overseas accepted in Australia? Generally no. A translation certified by an overseas body is usually not recognised here, and you will need the document re-translated by a NAATI certified translator for official Australian purposes.
Is Google Translate or machine translation accepted? No. Machine translations are not accepted by Australian departments, courts, or skills assessment authorities. Only a translation produced by a NAATI certified translator, carrying the credential number and stamp, counts as certified.
Do I need a NAATI translation if my document is already partly in English? If any non-English content is relevant to your application, that content must be translated by a NAATI certified translator. A partly bilingual document still needs certified translation of the non-English parts.
How long does a NAATI certified translation take? For standard documents like a birth certificate or police check, turnaround is usually a few business days. Upload your document for an exact timeframe with your quote.
