Partner visas are open to spouses and de facto partners of Australian citizens, permanent residents and eligible New Zealand citizens. Both use the same 820 and 801 or 309 and 100 visas, but some important rules apply only to de facto couples.
Key points
- There is no minimum length of relationship for a married couple.
- A de facto relationship must generally have existed for 12 months immediately before you apply.
- Registering the relationship, or marrying after you apply, removes the 12 month rule.
- For de facto couples, both partners must have been 18 or over when the application was made.
- If a marriage is not valid for migration purposes, the relationship can be assessed as de facto instead.
What both types need to show
Whether married or de facto, you must show a mutual commitment to a shared life to the exclusion of all others, a genuine and continuing relationship, and that you live together or do not live separately and apart on a permanent basis. The Department considers the financial, household, social and commitment aspects of the relationship. See our guide to the four aspects of the relationship.
Key differences
| Rule | Married | De facto |
|---|---|---|
| Minimum relationship length | None | 12 months before applying, unless an exception applies |
| Age | Marriage must be valid for migration purposes | Both partners 18 or over at application |
| Formal proof | Marriage certificate | Evidence of the relationship, or a relationship registration |
| Related by family | Prohibited degrees under marriage law | Cannot be related by family |
The 12 month rule and its exceptions
For de facto partner visas, regulation 2.03A requires the relationship to have existed for at least 12 months immediately before the application. The 12 months must be the current, unbroken relationship. The rule does not apply where:
- the relationship is registered under a state or territory scheme, see relationship registers;
- there are compelling and compassionate circumstances, such as a dependent child of the relationship;
- the partner is a permanent humanitarian visa applicant, or is or was a permanent humanitarian visa holder who declared the relationship before their grant.
Timing can work in your favour. The Department’s instructions say a registration completed after you lodge, but before the decision, still removes the rule. And if you marry after lodging, you are assessed as spouses at the time of decision, so the de facto 12 month rule no longer applies. Registration schemes exist in most states and the ACT, but not in Western Australia or the Northern Territory.
When a marriage is not valid
Some marriages are not recognised for migration purposes, such as a second concurrent polygamous marriage, a marriage without real consent, or some underage marriages. In those cases, the relationship may be assessed as de facto instead. See is our marriage valid for visa purposes? and polygamous marriages.
What you should do now
- Work out your relationship type: decide whether you will apply as spouses or de facto partners.
- Count the 12 months: if de facto, check when your current relationship began and whether you have 12 months.
- Consider registration: if you are short of 12 months and live in a state with a register, look at registering.
- Gather evidence: collect evidence across all four aspects of the relationship.
Frequently asked questions
How long do we need to be married before applying?
There is no minimum length for a married couple, but the marriage must be genuine and valid for migration purposes.
Can we register our relationship after we apply?
Yes. A registration completed after lodging and before the decision still removes the 12 month rule. A receipt for an application to register is not enough.
Does breaking up and getting back together restart the 12 months?
Yes. The 12 months must be the current, unbroken relationship.
Is pregnancy a compelling reason to waive the 12 months?
Not normally on its own. A dependent child of the relationship is one example the Department gives.
Can same-sex couples apply as married or de facto?
Yes. Same-sex marriages and de facto relationships are both recognised.
Related guides
- De facto relationships for partner visas
- Relationship registers
- Is our marriage valid for visa purposes?
- The four aspects of the relationship
- Partner visa requirements
Not sure whether to apply as married or de facto? Book a consultation with one of our registered migration agents.
This article is general information only and is not legal advice for your situation.







Doctors and Lawyers: When Registration or Admission Is Your Skills Assessment
Married, Separated or Had a Baby After Your Skilled Visa Invitation?
Second Jobs, Volunteering and Overseas Work on a 482 Visa
Australian Study Requirement: RPL, Overlapping Courses and Time Offshore
Australian Migration News: October 2026 Update