Registry of Births, Deaths & Marriages

You can change your surname after marriage in Australia for free. For more information visit the NSW Registry of Births, Deaths & Marriages website

Replace a certificate after a natural disaster

If your birth, marriage or change of name certificate was destroyed due to a natural disaster you can get a free replacement within 6 months of the event. Go to a Service NSW Centre or call 13 77 88.

Government agencies

When changing your name in NSW, you will likely need to update multiple agencies. Here are some of the more common agencies you'll need to update.

Transport and road tolls

Fishing and boating

Identity and concessions

Business licences

Combat sports

Security and firearms

Related information

Last published: 25 November 2025