Australian Citizenship Certificate: Number, Lost & Replacement

An Australian citizenship certificate is the official document that proves you are an Australian citizen. Most people who become citizens by conferral receive it at their citizenship ceremony. If yours is lost, stolen or damaged, you replace it by applying to the Department of Home Affairs for evidence of Australian citizenship.

This guide explains what the certificate is used for, where to find the certificate number, the difference between a certificate and a "citizenship card", and what to do if you need a replacement.

What Is an Australian Citizenship Certificate?

A citizenship certificate is a formal document issued by the Australian Government that records your name, date of birth and the date you became an Australian citizen. It is one form of evidence of Australian citizenship. For people who become citizens by conferral, the certificate is usually handed over at the citizenship ceremony, straight after you make the pledge. People who become citizens through other pathways, such as citizenship by descent, receive their evidence of citizenship through the Department.

When You Will Need Your Certificate

Applying for your first Australian passport — if you were born overseas, you will usually need to show evidence of citizenship.
Jobs that require citizenship, such as many Australian Public Service and defence roles or positions needing a security clearance.
Proving your status to government agencies, for example when enrolling to vote or accessing some services.
Registering children born overseas as citizens by descent, where you may need to prove you were a citizen when the child was born.

Where to Find Your Citizenship Certificate Number

Your certificate number is printed on the certificate itself. Forms such as passport applications may ask for it, along with the date you became a citizen. There is no public online lookup for certificate numbers, so if you have lost the certificate and do not have a copy, you will generally need to apply for new evidence of citizenship. Keep a secure scan or photograph of your certificate in a safe place, and do not post it online — it contains personal details that could be misused.

Is There an Australian Citizenship Card?

No. Australia does not issue a "citizenship card". Your certificate — and, once you have one, your Australian passport — are the usual ways to prove citizenship. You may have heard of the ImmiCard, but that is an identity card issued to certain visa holders, not proof of citizenship.

How to Replace a Lost or Damaged Certificate

There is no separate "replacement certificate" application. Instead, you apply for evidence of Australian citizenship. The usual steps are:

Check the current process on the Department of Home Affairs website (immi.homeaffairs.gov.au).
Apply online through ImmiAccount where available, or use the paper form (Form 119) if that suits your situation.
Provide identity documents and recent photographs as requested, plus any documents showing a change of name.
Pay the application fee — the current amount is listed on the Department's website.
Wait for processing, then receive your new evidence of citizenship.

If your certificate was stolen, consider reporting it to the police, and mention this in your application. If you still hold a valid Australian passport, you may be able to use it as proof of citizenship for many purposes while you wait.

Changed Your Name?

Your original certificate shows the name you had when you became a citizen. If you have since changed your name, for example through marriage, you can apply for new evidence of citizenship showing your current name, supported by your name-change documents.

Frequently Asked Questions

Can I become a citizen without receiving a certificate?

If you apply by conferral, you become a citizen when you make the pledge — the certificate is the proof, not the thing that makes you a citizen. If there is a problem with your certificate on the day, contact the Department.

Does a lost certificate mean I lose my citizenship?

No. Losing the document does not affect your citizenship. You simply need new evidence if you have to prove your status.

Can I laminate my certificate?

It is best not to. Laminating can make it harder for officials to check security features. Store it flat in a protective sleeve instead.

Can I use a photocopy as proof?

Some organisations accept certified copies, while others ask to see the original. Check with the organisation before you go.

Getting to the Ceremony

Still working towards your certificate? The citizenship test comes first. CitiZen AU helps you prepare with category practice and full mock tests in English and Vietnamese, plus progress tracking so you know when you are ready.