From 9 December 2017, you can apply for a visa as your partner’s ‘spouse’ if you are in a same-sex marriage following the legalisation of same-sex marriage in Australia.
Under the changes, if you are in a same-sex marriage you can apply for a visa as your partner’s ‘spouse’, rather than as their ‘de facto partner’.
The changes will apply to Partner visas (subclasses 100, 309, 801 and 820) and to all other visas where you can include your spouse in your application.
You can also apply for a Prospective Marriage visa (subclass 300) if you are in a same-sex relationship and genuinely intend to marry your prospective spouse in Australia.
Source: Department of Home Affairs