An unlawful non-citizen is a non-citizen who is in Australia and does not hold a valid visa. The status is defined in section 14 of the Migration Act 1958. Being an unlawful non-citizen is not a criminal offence in itself, but it triggers a mandatory detention obligation under the Act and — if not resolved — can result in removal from Australia, a re-entry ban, and significant difficulties obtaining future visas.

Unlawful status can arise in several ways: a visa expires or is cancelled while the person remains in Australia, a person enters Australia without a valid visa, or an applicant's bridging visa ceases and they have no other valid visa. The Immigration Status Resolution Service assists persons who have become unlawful non-citizens to understand their options and resolve their status. For current guidance, refer to the DHA page on not having a valid visa.

• Migration Act 1958, s 14 — definition of unlawful non-citizen
• Migration Act 1958, s 189 — mandatory detention: an officer who knows or reasonably suspects a person is an unlawful non-citizen must detain them
• Migration Act 1958, s 196 — an unlawful non-citizen detained under s 189 must be kept in detention until removed, deported, or granted a visa
• Migration Act 1958, s 198 — removal of unlawful non-citizens
• DHA: If you don't have a valid visa — immi.homeaffairs.gov.au/no-valid-visa
• DHA: Re-entry ban — immi.homeaffairs.gov.au/re-entry-ban
• DHA: Immigration Status Resolution Service — immi.homeaffairs.gov.au/status-resolution

How unlawful status arises

A non-citizen becomes unlawful in Australia when they no longer hold any valid visa. Common causes include:

• Visa expiry: The person's visa lapses and they remain in Australia without having applied for a new visa (or their bridging visa also expires)
• Visa cancellation: The person's visa is cancelled (for example, for a breach of conditions or character grounds) and no other visa is in effect
• Failed visa application: A substantive visa application is refused and any bridging visa that covered the application period has also ceased
• Entry without a visa: A person enters Australia without lawful authority (for example, by entering outside a port of entry)

Note: under the concept of implied status, an applicant who applies for a further visa before their current visa expires, and whose current visa then expires during processing, generally has their bridging visa automatically take effect — keeping them lawful. However, this only applies if the application was made before the expiry and meets the bridging visa criteria.

Mandatory detention

Section 189 of the Migration Act 1958 creates a mandatory detention obligation: an officer who knows or reasonably suspects that a person is an unlawful non-citizen must detain that person. Unlike some other countries' detention frameworks, Australian law does not give officers discretion to release an unlawful non-citizen — detention is required by the statute. Detainees must be released if they are granted a visa or are removed from Australia (s 196).

In practice, not all unlawful non-citizens are immediately detained — the obligation requires that an officer form a reasonable suspicion, and many persons with minor overstays come to DHA's attention voluntarily through the Status Resolution Service rather than through enforcement. However, the legal obligation to detain exists regardless of the length of the overstay or the reason for it.

The 3-year re-entry ban

A person who departs Australia without holding a valid visa after having been unlawful for more than 28 consecutive days may be subject to a re-entry ban of up to 3 years. This means DHA may refuse to grant any visa to that person for the period of the ban. The ban is intended to deter persons from deliberately overstaying. There are limited circumstances in which the ban may be waived, including compelling or compassionate reasons. For current guidance on the re-entry ban and any applicable exceptions, refer to the DHA re-entry ban page.

Bridging Visa E — restoring lawful status

A person who is an unlawful non-citizen (or is at risk of becoming one) can apply for a Bridging Visa E (BVE) (subclass 050 or 051). The BVE is a short-term visa designed to allow the person to remain in Australia lawfully while they:

• Make arrangements to depart Australia; or
• Apply for a substantive visa (if eligible); or
• Pursue an appeal or review of a visa refusal or cancellation

A BVE typically grants limited work rights (or none) and does not carry a travel facility — departing on a BVE generally results in the BVE ceasing and the person being unable to return unless they obtain a new visa. Persons applying for a BVE should act promptly — the longer a person remains unlawful, the more difficult it becomes to regularise status.

Immigration Status Resolution Service

DHA's Immigration Status Resolution Service assists persons who do not hold a valid visa to understand their immigration status, their options, and the consequences of each option. The service can help arrange BVE applications and other pathways. It is accessible at immi.homeaffairs.gov.au/status-resolution. Persons are encouraged to contact the service proactively rather than waiting for enforcement action.

Persons who become unlawful non-citizens often experience significant anxiety about their situation. The most important step is to seek assistance promptly — either through the Immigration Status Resolution Service or a registered migration agent — rather than continuing to remain in Australia without taking action. The longer the overstay, the more limited the options and the more severe the potential consequences.

Unlawful status does not automatically mean a person will be removed — DHA has operational priorities and the Status Resolution Service exists precisely to help resolve status through legitimate pathways. However, the legal risk of detection and detention is real, and voluntary approaches to DHA are generally treated more favourably than enforcement-initiated ones.