Is It Legal to Use a Maiden Name
After Marriage in Australia?

Picture of Hayder Shkara
Hayder Shkara

You’ve just gotten married, and now everyone seems to assume you’ll be changing your name. Forms ask for your “married name.” Well-meaning relatives already address cards to a name you haven’t actually adopted.

But you’re not sure you want to change it at all, or maybe you want to use both, your maiden name at work and your married name everywhere else. Is that even legal? Do you need to formally register anything, or could you get in trouble down the track for using a name that doesn’t match your official documents?

This guide explains exactly where you stand under Australian law, whether you keep your maiden name, take your spouse’s, or want to use both.

This article is general information, not legal advice. A family lawyer can advise you on how the law applies to your specific circumstances.

Do You Have to Change Your Name After Marriage in Australia?

No. There is no legal requirement to change your name after marriage in Australia, in any state or territory. Getting married doesn’t automatically change your legal name, and choosing to keep your maiden name is entirely your right.

This surprises some people, since it’s such a common tradition that many assume it’s also a legal obligation. It isn’t. Marriage in Australia has no automatic effect on your name at all, unless you actively choose to change it.

Is It Legal to Keep Using Your Maiden Name?

Yes, completely. There’s no formal process required to keep using your maiden name after marriage, since your name hasn’t changed in the eyes of the law unless you take steps to change it. You can continue using your maiden name on all your documents, from your driver’s licence to your passport to your bank accounts, indefinitely.

Many Australians choose this option for professional continuity, personal identity, cultural reasons, or simply because they see no reason to change a name they’ve had their whole life. It’s a personal decision, not a legal one.

Can You Use Both Your Maiden and Married Name?

Yes, and this is genuinely common. Australia recognises what’s often called a “change of name by usage,” a more informal way some people take on their spouse’s surname socially, without registering a formal, legal change of name through Births, Deaths and Marriages.

In practice, this means some people use their married name socially, on invitations, at social events, or even at work, while keeping their maiden name on official records like their driver’s licence, Medicare card, and passport, since only a formal registered change of name updates those documents. 

Others do the reverse, using their maiden name day to day while their legal documents reflect a formally registered married name. 

There’s no single correct approach, and Australian law doesn’t require consistency between social use and official records, though for practical reasons, most people eventually align the two to avoid confusion.

How Does “Change of Name by Usage” Work?

If you married in Australia and want to use your spouse’s surname without going through the Registry of Births, Deaths and Marriages, your official marriage certificate itself generally serves as sufficient evidence to update most organisations, including your driver’s licence and Medicare, without needing to apply for a separate change of name certificate first.

This is different to a full legal name change, which is a separate, formal process through the relevant state or territory registry, generally used when you want to adopt an entirely new name that isn’t simply your spouse’s existing surname, such as a hyphenated or double-barrelled combination, or a new name altogether.

It’s worth understanding the limitations of changing your name through usage alone, though. If you never formally register the change and later want firm, unambiguous documentary proof of your married name, for example for some international travel or specific legal purposes, a formal registered change of name may be required rather than relying on your marriage certificate alone.

What If You Want to Formally Change Your Name to Your Spouse’s?

If you do want to change your name after marriage, the process is broadly similar across Australia, though the exact forms and fees differ by state or territory:

  1. Get your official marriage certificate, the full registered certificate issued by Births, Deaths and Marriages, not the commemorative certificate handed out at the wedding, which generally isn’t accepted as legal proof of the marriage.
  2. Update your name with key organisations, typically starting with your driver’s licence and Medicare, since these are commonly required as identification for other updates.
  3. Update your name everywhere else, including your passport, bank, employer, Australian Taxation Office, and any other official record, using your marriage certificate as evidence throughout.

Each state manages this slightly differently. Victoria’s Births, Deaths and Marriages, the Queensland Government’s name change guidance, and NSW Government’s process for changing your surname after marriage all set out the specific steps and requirements for their respective states, and it’s worth checking the relevant page for where you’re registered.

What About Changing Back to Your Maiden Name Later?

If you do formally change your name after marriage and later separate or divorce, reverting to your maiden name generally doesn’t require a court order either, your marriage and divorce certificates together usually serve as sufficient evidence for most organisations to update your records. Our detailed guide on how to change back to your maiden name after marriage covers this process, including passports, driver’s licences, and what documents you’ll need.

Are There Any Restrictions on Which Name You Use?

Generally, no, provided you’re not using a name change to avoid a legal obligation, commit fraud, or mislead others for an improper purpose. Outside of that, Australia is genuinely flexible about names, whether you keep your maiden name entirely, take your spouse’s, hyphenate both surnames, or choose an entirely different name together, as some couples do.

When to Seek Legal Advice

Most name-related questions after marriage are straightforward and don’t require legal advice, particularly if you’re simply keeping your maiden name or making a standard change to your spouse’s surname. 

However, if your situation is more complex, for example you married overseas, you’re navigating separation or divorce at the same time, or there’s a dispute about a name change involving a child, it’s worth speaking with a family lawyer to make sure everything is handled correctly.

Our team is here to help if a name change forms part of a broader family law matter you’re working through.

Frequently Asked Questions

Can I use both maiden and married names in Australia?

Yes. There’s no legal requirement to use only one name consistently, and many people use their married name socially while keeping their maiden name on official documents, or vice versa. Where official consistency matters, such as for travel documents, it’s worth formally registering whichever name you intend to use long-term.

Can I still use my maiden name even if I’m married? 

Yes, absolutely. Getting married doesn’t legally change your name unless you actively choose to change it. You can continue using your maiden name on all official documents and in everyday life for as long as you like.

Can I use both my maiden and married name? 

Yes, this is a genuinely common approach. Some people use a hyphenated or double-barrelled version of both surnames, while others simply switch between the two depending on the context, professional versus personal, for example, without any legal issue.

Am I still “Mrs.” if I keep my maiden name? 

Whether you use “Mrs.,” “Ms.,” or another title is entirely a personal and social choice, separate from your legal name. Many people who keep their maiden name still choose to use “Mrs.” socially, while others prefer “Ms.” regardless of their surname. Neither option affects your legal name or marital status under Australian law.

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