If you are sponsoring a Thai partner for an Australian partner visa (Subclass 309/100 for offshore applications, or 820/801 for onshore), you will need to submit a set of Thai documents translated into English by a NAATI-certified translator. This guide provides a complete checklist of the Thai documents typically required, explains what each one is, and explains what “NAATI-certified” means and why it matters for the Department of Home Affairs.
What Is a Partner Visa and Why Do You Need Translated Thai Documents?
A partner visa allows the Thai spouse or de facto partner of an Australian citizen or permanent resident to live permanently in Australia. The visa application requires documentary evidence of both the relationship and each partner’s identity and immigration status. For Thai-born applicants and sponsors with Thai documents, this means translating a range of official Thai government documents into English.
The Department of Home Affairs requires all translations to be completed by a NAATI-certified translator — a translator who holds current accreditation from Australia’s National Accreditation Authority for Translators and Interpreters. Translations not completed by a NAATI-certified translator will not be accepted, and failure to provide properly translated documents is one of the most common reasons for partner visa delays.
Complete Translation Checklist: Thai Documents for Partner Visa Applications
The following Thai documents typically require NAATI-certified English translation for Australian partner visa applications. Not all documents apply to every applicant — your migration agent or the Department of Home Affairs visa requirements will specify exactly which documents you need to submit.
1. Thai Marriage Certificate (Kor Ror 3 / ทะเบียนสมรส)
If you and your Thai partner are legally married in Thailand, the Thai marriage registration certificate (Kor Ror 3) is the central document for your partner visa application. This document confirms the legal marriage between the two parties. The accompanying Kor Ror 2 (the marriage certificate booklet) is also commonly submitted. Both documents should be translated.
2. Thai Passport Pages
The biographical data page of the Thai partner’s passport (the page with the photo, full name, date of birth, and passport number) may require translation if the Department of Home Affairs specifically requests it. In practice, passports are usually submitted in their original form with a certified copy, but if your migration agent advises you to include a translated copy, have the data page translated by a NAATI-certified Thai translator.
3. Thai National ID Card (บัตรประจำตัวประชาชน)
The Thai national identity card confirms the Thai partner’s identity, Thai citizenship, and date of birth. This is often required as a supporting identity document alongside the passport. The front and back of the ID card should be translated.
4. Thai Birth Certificate (สูติบัตร / Suti Bai)
The Thai birth certificate establishes the Thai partner’s full name, date of birth, birthplace, and parents’ names. It is used to confirm identity and may be required to establish relationship evidence. If the names on the birth certificate differ from the passport due to Thai name changes, a name change certificate (see below) will also be required.
5. Thai Name Change Certificate (ใบเปลี่ยนชื่อ)
It is common in Thailand for people to legally change their first name (and less commonly their surname). If your Thai partner has changed their name at any point, a certified English translation of the name change certificate must be included to establish that all documents referring to different names are for the same person.
6. Thai Surname Change Certificate (ใบเปลี่ยนนามสกุล)
If the Thai partner changed their surname (for example, upon a previous marriage or divorce), a certified translation of the surname change document is required. This is particularly important for ensuring that your partner’s current legal name is consistent across all submitted documents.
7. Thai Divorce Certificate (ทะเบียนการหย่า / Kor Ror 7)
If either party has been previously married, certified translations of the divorce registration and divorce certificate are required. Thailand uses the Kor Ror 7 (Tabian Kan Ya) as the official divorce registration document. This document must be included to demonstrate that both parties are legally free to marry.
8. Thai Police Clearance Certificate (หนังสือรับรองความประพฤติ)
The Thai police clearance certificate (issued by the Royal Thai Police) confirms that the Thai partner does not have a criminal record in Thailand. This document is generally required for all partner visa applicants who have resided in Thailand for 12 months or more in the past 10 years. The original Thai police clearance, once obtained, must be translated by a NAATI-certified Thai translator.
9. Thai Household Registration (ทะเบียนบ้าน / Tabien Baan)
The Thai house registration document (Tabien Baan or Blue Book) records the Thai partner’s registered residential address and all household members. It can serve as evidence of residence and family relationships. While not always required, it is sometimes requested by the Department of Home Affairs as supporting evidence of the relationship or as a document establishing shared cohabitation history in Thailand.
10. Thai Partner’s Previous Visa Documents (if applicable)
If the Thai partner has previously held Australian visas, these may need to be evidenced in the application. Any Thai-language correspondence from immigration authorities should be translated.
11. Thai Employment or Financial Documents (if requested)
In some cases, the Department of Home Affairs may request evidence of the Thai partner’s financial circumstances, employment, or business ownership. Thai-language bank statements, employment letters, or business registration documents may require NAATI-certified translation.
12. Statutory Declarations and Relationship Statements (Thai-language versions)
If supporting statutory declarations have been prepared in Thai for Thai-speaking witnesses or family members, these will also need to be translated by a NAATI-certified Thai translator. Note that statutory declarations for Australian legal purposes must be sworn before an authorised witness in Australia; translation of an existing Thai-language statement is a different matter from creating a new declaration for Australian submission.
Turnaround Times for Thai Partner Visa Document Translations
Partner visa document bundles often involve multiple documents that all need to be translated at the same time. When planning your visa application timeline, allow sufficient time for translations to be completed and reviewed. Typical turnaround times for a NAATI-certified online Thai translation service:
- Individual documents (self-service extract): often within 1 hour on the same business day
- Standard extract service: within 1 business day per document
- Full document translation: 1–2 business days per document
- Multiple documents: discuss volume pricing and turnaround with your translator when ordering a full application bundle
Can You Use the Same NAATI Translator for All Documents?
Yes, and this is often recommended. Using the same NAATI-certified Thai translator for all documents in your partner visa application ensures consistency in transliteration of names and terminology across all documents. Inconsistent name transliteration (for example, rendering the same Thai name as “Sirikan” in one document and “Sirigan” in another) can raise questions from Department of Home Affairs case officers and cause unnecessary delays.
Is NAATI Certification Required for Documents Used Inside Thailand?
NAATI certification is specifically an Australian requirement. If you are preparing documents for submission to Thai authorities, you will not need a NAATI-certified translator — Thai authorities will have their own requirements. This checklist covers documents being submitted to Australian immigration authorities only.
Get Your Thai Partner Visa Documents Translated
DJHartmann Translation provides NAATI-certified Thai translation for all documents in this checklist — individually or as a bundle. Same-day turnaround available. 100% online. Accepted by the Department of Home Affairs, VETASSESS, and all Australian government agencies.
✅ Acceptance guaranteed — all translations carry the NAATI stamp, accepted by the Department of Home Affairs, VETASSESS, Australian courts, and universities.
View individual document translation pages: Marriage Certificate | Birth Certificate | Divorce Certificate | Police Clearance | Government & ID Documents
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