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Changing your name after marriage in Australia: what you need and where to start

Direct answer. If you marry in Australia and want to take your partner's surname, or combine your names, you do not have to apply for a formal name change. You show organisations your official marriage certificate, the one from the state or territory registry of births, deaths and marriages, not the ceremonial certificate your celebrant gives you on the day. If you marry overseas, you generally need a formal change of name first.

Written by Vereli Weddings. Last reviewed 27 September 2026.

Do I have to change my name at all?

No. The Western Australian Government says a person who marries in Australia may choose to assume their spouse's surname "as a matter of custom, not law". Whether you change your name, keep it, or combine names is your choice. The New South Wales and Victorian pages both describe taking your partner's surname or combining the two with a hyphen.

Which certificate proves it?

You need the official marriage certificate from the registry in the state or territory where you married. The New South Wales, Victorian and Queensland pages say the certificate your celebrant gives you at the ceremony is not the one to use. Your celebrant sends the paperwork to the registry after the wedding, and you (or your celebrant, generally at a cost) order the official certificate from there. Our Notice of Intended Marriage guide covers what happens to the paperwork after the ceremony.

Do I need to apply to the registry?

If you married in Australia, the four state pages we read say no:

  • New South Wales: the page says you do not need to pay the fee for an official change of name; the official marriage certificate is enough for most departments.
  • Victoria: you do not need to apply for a change of name; you provide the marriage certificate to the organisations you are updating.
  • Queensland: you do not need to apply to the registry; you contact each organisation, and they will tell you what they need to see.
  • Western Australia: a certified marriage certificate from an Australian registry is usually enough to have your documents changed to a married surname. You can register a formal change of name if you want one, which can make proving your identity easier.

What to update, and in what order

The New South Wales page suggests starting with the two documents most other organisations rely on:

  1. Your driver licence. In NSW, take the official marriage certificate and your current licence to a Service NSW centre. Other states have their own licence authority, so check yours.
  2. Your Medicare card. Update it at a Services Australia centre or by phone with the marriage certificate.
  3. Everything else, using the marriage certificate plus your new licence and Medicare card as proof: banks and insurers, utilities, the Australian Taxation Office, the Australian Electoral Commission, and the Australian Passport Office.

Make a list first. Each organisation sets its own requirements, so ask what each wants to see.

If you were born overseas

If you were born overseas and married in Australia, Queensland and Victoria both say many organisations will accept a copy of your passport or Australian citizenship certificate together with your official marriage certificate. Victoria adds that some may ask for a formal change of name.

If you marry overseas

An overseas marriage cannot be registered in Australia. The New South Wales, Victorian and Western Australian pages say that if you married overseas you need (or may need) an official change of name from a registry instead of relying on the marriage certificate. Check your state or territory registry before you plan around it.

Changing back after separation or divorce

You may need your official marriage certificate, your birth certificate and a divorce document. The registry does not hold divorce records; the Victorian page points to the Federal Circuit and Family Court of Australia. Check what each organisation will accept.

Where this comes from

The New South Wales Government's Change your surname after marriage, the Victorian Registry's Changing your name after marriage, separation or divorce, the Queensland Government's Changing your last name after marriage or separation and the Western Australian Government's Changing your name, all read on 27 September 2026. South Australia, Tasmania, the Northern Territory and the ACT are not covered here yet; ask that registry. We do not list fees, because they change. This is general information, not legal advice.

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