Australia Partner Visa from Thailand — Evidence Guide

For Thai applicants applying to Australia. Official source: Australian Embassy Thailand (visa applications are processed by the Department of Home Affairs).

Applicable visa categories

Partner Visa (Offshore) (309/100) — varies by case; check current Home Affairs global processing times
Partner Visa (Onshore) (820/801) — varies by case; check current Home Affairs global processing times
Prospective Marriage Visa (300) — varies by case; check current Home Affairs global processing times

What is different for Thai applicants

Under Thai law, a marriage in Thailand is only valid once it is registered with Thai authorities. The Australian Embassy says a wedding ceremony or religious service without registration at a District Office (Amphur) does not make a couple legally married in Thailand or Australia, and Home Affairs asks married applicants for their marriage certificate or other evidence that the marriage is valid in Australia.
For an Australian citizen who entered Thailand on an Australian passport, Thai authorities require a Certificate of No Impediment to Marriage (CNI) issued by the Australian Embassy in Bangkok or the Consulate-General in Phuket, applied for in person by appointment. The Embassy says Thai authorities accept it for up to 3 months after issue, and that the documents must be translated into Thai and authenticated by the Thai Department of Consular Affairs before the Amphur registration.
Applications are lodged online in ImmiAccount and processed by the Department of Home Affairs; Embassy staff cannot help with general visa enquiries. The Embassy says visa applicants in Thailand must provide biometrics (a facial image and fingerprint scan) and are notified of this in ImmiAccount. Home Affairs lists biometrics collection centres in Bangkok, Chiang Mai and Phuket, and panel clinics for health examinations in Bangkok, Chiang Mai, Phuket and Udon Thani.
Thai-language documents need English translations, provided together with the originals. Translators in Australia must be NAATI-accredited; translators outside Australia do not have to be, but each translation must show, in English, the translator’s full name, address, telephone number and qualifications and experience in the language. Home Affairs says documents do not need to be certified.

Document authentication (Thailand)

Thailand deposited its accession to the Hague Apostille Convention on 30 June 2026, but the Convention only enters into force for Thailand on 28 February 2027. Until then, Thai documents for use abroad are legalized by the Ministry of Foreign Affairs' Department of Consular Affairs rather than apostilled; check whether the destination country's embassy must also legalize them.

Issuing authority: Department of Consular Affairs — Nationality and Legalization Division (MFA Thailand).

Civil documents commonly required

สูติบัตร (birth certificate)
ทะเบียนบ้าน ท.ร.14 (house registration book)
บัตรประจำตัวประชาชน (Thai national ID card)
ทะเบียนสมรส คร.2 (Kor Ror 2, marriage register) and ใบสำคัญการสมรส คร.3 (Kor Ror 3, marriage certificate)
หนังสือสำคัญการเปลี่ยนชื่อ ช.3 (name-change certificate), where a name has changed
Police certificate from the Special Branch of the Royal Thai Police

Official form guides

888: Supporting statement in relation to a Partner or Prospective Marriage visa application

Common refusal grounds at Australian Embassy Thailand (visa applications are processed by the Department of Home Affairs)

Not enough evidence that the relationship is genuine across the four areas Home Affairs asks applicants to cover: finances, household, social matters (including statements from 2 witnesses, which can be made on Form 888) and commitment.
Applying as a spouse on the strength of a ceremony that was never registered at an Amphur: the Embassy says this does not make a couple legally married in Thailand or Australia, and a spouse applicant must be in a married relationship.
A de facto relationship of less than the usual 12 months immediately before applying, without one of the listed exceptions such as registration of the relationship with an Australian state or territory registry or compelling and compassionate circumstances. Home Affairs notes that time spent dating or in an online relationship might not count.
Sponsorship limitations: Home Affairs may refuse the sponsorship and the visa application if the sponsor has sponsored another partner, or was sponsored as a partner, within the last 5 years, or if this is their third time sponsoring someone for a Partner or Prospective Marriage visa (some exceptions apply). A sponsor may also not be approved on character grounds, for example a significant criminal record for relevant offences or refusing to provide a police clearance.
Marrying while a Prospective Marriage visa (subclass 300) application is still undecided without asking to be considered for the subclass 309/100 visa and withdrawing the 300 application; Home Affairs says the 300 application will otherwise be refused.
False or altered documents: Home Affairs says providing altered, edited or digitally manipulated documents, including photos, is unlawful, tells applicants not to create or modify documents with AI, and warns that bogus or false and misleading documents or information may lead to refusal, visa cancellation and restrictions on future applications.

What officers scrutinize on this corridor

A written relationship history: how, when and where you met, how the relationship developed, when you moved in together, got engaged or married, time spent apart, significant events and your plans for the future.
Evidence that you stay in touch when apart, which Home Affairs lists under commitment, for example dated LINE, WhatsApp, Messenger or video-call records.
Your marriage certificate (or other evidence the marriage is valid in Australia) with an English translation or, for de facto couples, evidence of at least 12 months in the relationship before applying, or of its registration with an Australian state or territory registry.
Shared finances and household: joint bank accounts, leases, household bills in both names and mail addressed to you both.
Statements from 2 witnesses aged 18 or over who know you both and know about your relationship (Form 888 can be used), with proof of status for any witness who is an Australian citizen or permanent resident.

Frequently asked questions

Is a Thai wedding ceremony enough to apply as a spouse?

Not on its own. The Australian Embassy in Thailand explains that a marriage in Thailand must be registered with Thai authorities to be valid under Thai law, and that a ceremony or religious service without registration at a District Office (Amphur) does not make you legally married in Thailand or Australia. A legal overseas marriage that would also have been legal if performed in Australia is recognised under Australian law. Couples who are not legally married can look at the de facto partner criteria (usually at least 12 months in the relationship immediately before applying) or, if they have met in person as adults and intend to marry, the Prospective Marriage visa (subclass 300).

What does the Australian partner need to register a marriage in Thailand?

An Australian citizen who entered Thailand on an Australian passport needs a Certificate of No Impediment to Marriage (CNI) issued by the Australian Embassy in Bangkok or the Consulate-General in Phuket. The Australian applicant attends in person by appointment, signs in front of a consular official and pays a fee, and Thai authorities accept the CNI for up to 3 months after issue. Someone who entered Thailand on another country’s passport needs the equivalent document from that country’s embassy, and dual Thai/Australian citizens do not need a CNI. The documents are then translated into Thai and authenticated by the Thai Department of Consular Affairs before the marriage is registered at an Amphur.

Do Thai documents need translation, certification or an apostille for Home Affairs?

Home Affairs asks for all documents to be translated into English, with both the original and the translation provided. Translators in Australia must be NAATI-accredited; translators outside Australia do not have to be, but each translation must give the translator’s full name, address, telephone number and qualifications and experience in the language, in English. Home Affairs states that documents do not need to be certified, and its partner-visa document steps do not mention an apostille or legalisation step. For reference, the HCCH status table lists Thailand’s accession to the Apostille Convention (instrument deposited 30 June 2026), with entry into force for Thailand on 28 February 2027.

Where do Thai applicants give biometrics and have health examinations?

Home Affairs tells you whether you need to attend an Australian Biometrics Collection Centre in person or can use the Australian Immi App. Its list of centres (correct as of March 2026) includes Bangkok, Chiang Mai and Phuket; VFS Global operates them, appointments are required and a service fee applies. Health examinations must be done by a Home Affairs-approved panel physician or clinic; the Thailand list includes clinics in Bangkok, Chiang Mai, Phuket and Udon Thani. Health assessment results and police certificates are each valid for 12 months for immigration purposes, so Home Affairs suggests checking visa processing times before getting them.

Does the Australian sponsor need a Thai police certificate?

Only if they have spent a total of 12 months or more in Thailand in the last 10 years since turning 16. Sponsors provide a complete-disclosure National Police Certificate from the Australian Federal Police, plus an overseas police certificate from every country where they spent a total of 12 months or more in that period. For Thailand, the Home Affairs service finder points to the Special Branch Bureau’s police clearance service centre in Bangkok.

Should a Thai partner apply from Thailand or from inside Australia?

The Partner visa (subclass 309/100) and the Prospective Marriage visa (subclass 300) must be lodged outside Australia. The Partner visa (subclass 820/801) must be lodged in Australia, and cannot be lodged if your current or previous visa has a no-further-stay condition such as 8503 unless a waiver is approved first. Under Ministerial Direction 117, Home Affairs gives the highest priority to onshore 820/801 applications and lower priority to offshore 309/100 and 300 applications, which it says are likely to take longer. For the 309 and 300, you can be in or outside Australia when the temporary visa is decided, but if you travel to Australia on another visa while the application is in progress, you are responsible for keeping a valid visa.

Can LINE or WhatsApp chats be used as relationship evidence?

They can help. Home Affairs asks for evidence that you stay in touch when apart, under the commitment aspect of the relationship, and chat records are one way to show this. All documents need English translations, so Thai-language messages you rely on need translating too. Keep exports unaltered: Home Affairs says providing altered, edited or digitally manipulated documents is unlawful and tells applicants not to create or modify documents with AI. A chronological export that keeps the original dates and times makes the record easier to read without changing its content.

Official sources

Related corridors

Australia Partner Visa from Vietnam — Australian partner-visa evidence guide for Vietnamese applicants — subclass 309/100 & 820/801, four evidence pillars, English translation rules.
Australia Partner Visa from India — Australian partner-visa evidence guide for Indian applicants — subclass 309/100 & 820/801, four evidence pillars, English translation rules, arranged-marriage FAQ.
US K-1 & Spouse Visa from Thailand — US K-1, CR-1, and IR-1 evidence guide for Thai applicants — Bangkok embassy interview, Amphur-issued English documents, marriage registration, translation rules.
UK Spouse & Fiancé Visa from Thailand — UK Spouse, Fiancé(e) & Unmarried Partner visa evidence guide for Thai applicants — A1 English test, TB certificate, district-office marriage registration, VFS Global.

PartnerProof converts WhatsApp, Telegram, Instagram, Facebook Messenger, and iMessage exports into DHA-formatted PDF evidence packets for Australia visa applications. Try it free →