Why Australia's social media ban is in court
Australia's world-first ban on social media accounts for under-16s reached the High Court on 3 November 2026. It took effect nearly 11 months earlier. Reddit and the Digital Freedom Project asked the court to declare the law invalid. The advocacy group is led by John Ruddick, a Libertarian member of the New South Wales upper house.
The two-day hearing is being held in Canberra. It is the first major legal test of a policy that several other governments have studied. The High Court joined the two challenges into a single special case because they depend on the same constitutional argument.
The dispute is not about whether Australia can regulate social media. The government accepts that it can. The question is whether a blanket account ban for all under-16s imposes too heavy a burden on political communication.
Australia does not have a guaranteed right to freedom of speech. Its constitution contains an implied freedom of political communication, which the challengers say the ban breaches. Under the court's test, a law that burdens that freedom must serve a legitimate purpose. It must go no further than reasonably necessary.
For the challengers, the ban fails that test. For the Commonwealth, the protection of children justifies a measure that it describes as modest and targeted. The outcome could shape how far Australia, and other countries, go in restricting young people's access to online platforms.
The hearing has drawn attention from civil liberties and industry groups. Three groups have sought leave to appear as friends of the court. They are the British Free Speech Union, the US trade group NetChoice and the Electronic Frontier Foundation. Their involvement signals that the case is being read as a test of platform regulation, not just Australian family policy.
What does Australia's under-16 social media ban actually do?
The law is the Online Safety Amendment (Social Media Minimum Age) Act 2024, often shortened to the SMMA. It began on 10 December 2025. It requires designated platforms to take reasonable steps to prevent Australians under 16 from creating or keeping accounts.
Ten services are covered: Facebook, Instagram, Threads, Snapchat, X, TikTok, YouTube, Kick, Reddit and Twitch. WhatsApp and YouTube Kids are not covered. Platforms decide how to estimate age. The BBC has reported that methods have included ID checks and selfie-based age estimation.
The law does not ban teenagers from the internet. It bans them from holding accounts on platforms that the government classifies as age-restricted social media. Platforms must deactivate or suspend accounts they identify as belonging to under-16s. The Digital Freedom Project argues that potentially harmful content remains available even without an account.
The maximum civil penalty for a breach was originally A$49.5 million. In June 2026 the government doubled it to A$99 million and gave the eSafety Commissioner stronger powers to compel documents and evidence. The government said the change aligned the penalty with competition law.
Enforcement is the responsibility of the eSafety Commissioner, Julie Inman Grant. Her office has been investigating whether TikTok, Snapchat, YouTube, Instagram and Facebook are complying, after reports that some teenagers still hold accounts. The government says the rules can be updated over time.
The government says more than 5 million accounts have been deactivated, removed or restricted since the law began. It has not published a breakdown by platform. The opposition has questioned whether the total is inflated, and the government has refused to release figures for individual services.
Why does Reddit say the ban is unconstitutional?
Reddit's case rests on the implied freedom of political communication. Its counsel, Perry Herzfeld SC, told the court the law was "ill thought-out". He said it did not clearly target the harms the government described. He noted that the eSafety Commissioner had not called for the ban and that two parliamentary inquiries had not recommended it.
Reddit argues that social platforms are now a common source of news and political information. It points to its Ask Me Anything threads, where politicians have taken questions, and to the accounts of party youth wings. A teenager barred from the site cannot post, comment or react to that material, the company says.
Herzfeld said the ban leaves young people unable to "shout their views on a street corner" and reach the same audience. In written submissions, Reddit's lawyers put the point more formally. They said it deprives young people of the ability to "speak, interact, organise and reach domestic and global audiences quickly and inexpensively".
The submission said the deprivation was "profound" because under-16s have no "avenue of the ballot box".
Reddit also wants a declaration that it is not an "age-restricted social media platform" under the Act. Its counsel accepted that Reddit has some of the features the government considers harmful, but argued that it differs in four ways. It relies on pseudonyms, is mostly text-based, has no endless feed and does not automatically delete posts after a set time.
The Digital Freedom Project makes a broader argument. It says there is a "fundamental disconnect" between the law's purpose and its effect. Many children have found ways around age checks, it argues. It also says less restrictive alternatives exist, including parental consent for 14- and 15-year-olds, safer default settings and targeted moderation.
Both challengers face a procedural hurdle. The Commonwealth argues that the Digital Freedom Project lacks standing. It says the group has not shown that its own activities are impeded by the ban. Two 15-year-olds, Noah Jones and Macey Nyland, were originally named as plaintiffs. They were removed from the case in July, reportedly over concerns about legal costs. The group says some of its members are aged 13 to 15.
What is the government's defence?
The Commonwealth says the ban addresses specific features that make social media harmful to children. It lists algorithmic feeds, infinite scroll, persistent notifications and likes. It argues that platforms are motivated by advertising revenue to maximise engagement and retention.
On the constitutional question, the government makes a narrower claim. It says the implied freedom protects communication on political and governmental matters. It argues that the practical effect is modest and indirect. It also says the freedom applies to "electors" — people eligible to vote.
Government lawyers describe the rules as consultative, targeted and capable of being updated. They say the burden on political communication is indirect and justified by the seriousness of the harm the law seeks to prevent. The Commonwealth also says the law penalises platforms rather than teenagers.
Outside court, Communications Minister Anika Wells said the government was defending Australians from harm against "sustained ideological attacks". She called the regulation of tech platforms "the most compelling policy question of our time".
A government spokesperson said: "We will stand firm to protect young Australians from experiencing harm on social media."
The spokesperson declined to comment further while the case is before the courts.
South Australia, which has pushed for age restrictions, supports the Commonwealth. Premier Peter Malinauskas said social media had "made discourse in our democracy worse, not better". He argued that algorithms decide what children see, adding: "No one's banning the internet."
State and territory attorneys-general have also made submissions in support of the law.
The government also points to a digital duty of care bill now before parliament. It argues the bill would require platforms to take the same action. That could blunt the practical effect of a win for Reddit.
What did the High Court justices signal on day one?
The case is being heard by a full bench. From the first day, the justices pressed Reddit's counsel on children's political engagement. They asked whether the ban would make a meaningful difference. They suggested teenagers could use messaging apps or email to communicate.
Justice James Edelman AC questioned the idea that young people could not take part in political debate without social media. He observed that they had influenced public argument for centuries before the platforms existed.
Herzfeld responded that the scale and speed of social media are different. He cited the School Strike for Climate movement as an example of underage political engagement. He argued that it was unrealistic to assume a person's political life begins only when they turn 16.
Noah Jones, a teenager associated with the Digital Freedom Project, spoke outside court. "If the children aren't collaborating and sharing their own views, then they're just spectators in their own world," he said.
John Ruddick accused the government of a pattern of censorship. He linked the ban to proposed hate speech reforms and the digital duty of care. He said the group hoped the court would begin to "reverse this censorship crusade".
Questions from the bench are not predictions. The justices often test both sides, and the court has not indicated when it will rule. The hearing continues on 4 November.
The bench's focus on political engagement suggests that the challengers must show a concrete effect, not only a theoretical one. That is a higher bar than arguing that the law is bad policy. Reddit's best hope may lie in its narrower claim about how the Act defines a social media platform.
How many accounts have been removed, and is the ban working?
Account numbers have become a point of dispute. In January 2026, the government said platforms had deactivated, removed or restricted about 4.7 million under-16 accounts. By June, it described the figure as more than 5 million. The ABC reported in November that nearly 5 million accounts had been blocked.
In court, Reddit's counsel said almost 44,000 of the 4.7 million accounts were on Reddit. That is less than 1% of the total. The government has not released a platform-by-platform breakdown, which makes it difficult to assess how the burden falls across services.
Compliance and effectiveness are separate questions. The government treats the account removals as evidence that the law is working. Critics say the numbers do not show whether children have simply moved to other apps or used virtual private networks to get around age checks.
Adam Collins, the company's chief communications officer, said Reddit would keep complying while it challenged the law. It would also advocate for "more effective youth safety measures".
The eSafety Commissioner is also using new powers to investigate five platforms over compliance. Companies could face penalties of up to A$99 million per breach if the regulator takes them to the Federal Court.
Legal opinion is divided. Anne Twomey, a constitutional law professor, has suggested Reddit could succeed. It could show a mismatch between the law's purpose and its practical effect. Luke Beck of Monash University has said the challenges are likely to fail. He argues the ban only slightly reduces the overall volume of political communication.
Beck has also said the Digital Freedom Project faces a difficult standing argument. "Traditionally the courts aren't too keen" on advocacy groups challenging laws, he said.
The wider question is whether removing accounts reduces harm or simply moves it. That debate is not confined to Australia. Several other countries are considering similar age limits, the Guardian reported.
What happens next, and why does it matter outside Australia?
The hearing ends on 4 November. The court will then decide the special case; it has not set a date for judgment. Possible outcomes include upholding the law or striking it down in whole or in part. The court could also read it down so it cannot silence political speech.
A win for the challengers would not necessarily end the ban. Beck has said a successful challenge might amount to a "technical breach" that parliament could fix with amendments. The government's digital duty of care bill could also impose similar obligations on platforms.
The court could also decide that the Digital Freedom Project lacks standing. That would end its challenge without reaching the constitutional question, leaving Reddit's narrower case to carry the argument.
The case matters beyond Australia because other countries are weighing age limits of their own. Australia's experiment is the most extensive so far, and its courts are now defining the legal limits of that approach. A ruling could influence how governments design age assurance and how platforms challenge it.
It also tests a broader question about rights in the platform era. Social media companies are private businesses, but they host much of the public conversation. The High Court must decide how far the constitution protects access to that conversation for people who cannot yet vote.
What to watch: the judgment and its reasoning. Also watch the court's standing ruling and the eSafety Commissioner's enforcement decisions. The digital duty of care bill is the other variable. Each could change the practical reach of the ban in the months ahead.