Register a change of sex on a birth certificate

If you have changed your sex, also known as sexual reassignment, you can register your new gender on your birth certificate.

Sexual reassignment involves a surgical procedure that alters a person’s reproductive organs.

It changes a person’s gender or removes any ambiguities relating to their sex.

Your new birth certificate

When a change of sex is registered, a birth certificate can be issued showing the new gender.  

The new birth certificate will not make any reference to the fact a change has occurred.

The old birth certificate must be returned to the Births, Deaths and Marriage office. You can request to have the old birth certificate returned to you. It will be cancelled and stamped. You will no longer be legal to use for official purposes.

It is an offence to produce a birth certificate that shows your previous sex.

You may also want to change your name. Read more about legally changing your name.

How to register a change of sex for an adult

To register a change of sex for an adult you must be all of the following:

  • born in the Northern Territory (NT)
  • over 18 years old
  • unmarried.

Evidence you need to provide 

You will need to provide evidence. Documents you can use are either:

You may also need to produce other documents or information as requested by the Registrar of the Births, Deaths and Marriages office.

How to apply

You will need to submit all of the following to the Births, Deaths and Marriages office by mail or in person:

How to register a change of sex for a child

To register a change of sex for a child they must:

  • have been born in the Northern Territory (NT)
  • be under 18 years old
  • be unmarried.

Evidence you need to provide

You will need to provide evidence documents for the child. This can be either:

You may also need to produce other documents or information as requested by the Registrar of the Births, Deaths and Marriages office.

How to apply

You will need to submit all of the following to the Births, Deaths and Marriages office by mail or in person:

Last updated: 27 June 2017