You do not have to change your name after marriage.
That choice is entirely up to you.
If you do want to change it
For many people married in Australia, the official marriage certificate is the key document used to update records.
That is the NSW BDM certificate, not just the ceremonial one from the day.
Common places to update
People often use the official certificate to update:
- passport
- driver licence
- bank records
- Medicare
- superannuation
- work records
Sometimes a formal change of name is needed
If you want a surname that is not covered by the usual marriage-certificate process, or if your situation is more complex, check the current rules with NSW Births, Deaths and Marriages.