Missouri became one more state to require age verification on adult sites when Governor Mike Kehoe signed the bill on July 10. By mid-2026 that list runs past 26 states, so another one is barely news on its own. The penalty structure is what makes Missouri worth a closer look.
The law takes effect August 28. It applies to commercial sites where more than a third of the content counts as “sexual material harmful to minors.” Covered sites have to verify age through a third party, using a government ID, a digital ID, or a “commercially reasonable” system built on transactional records such as mortgage, education, or employment data. The verification provider is barred from keeping any identifying data on the user.
The penalties are the story
Most state age-verification laws lean on private lawsuits or modest fines. Missouri handed enforcement to Attorney General Catherine Hanaway and gave her real financial weight to swing.
A non-compliant site can be charged up to $10,000 a day. Improperly retaining a user’s data runs $10,000 per instance. And if a minor accesses restricted material, the law allows up to $250,000 in additional penalties on top of that. Numbers at that level change the math for any operator deciding whether compliance or a lawsuit is the cheaper path.
The bill also cleared the legislature with unusual agreement. The Senate passed it 32 to 0 in May. The House followed 112 to 25.
The familiar fault lines
Hanaway framed the requirement as minimal. “All we are requiring is that you be able to prove that you’re 18 years old,” she said. Kehoe kept it broad: “Public safety will always be this administration’s top priority.”
The opposition raised the same objections that have followed every one of these laws. State Representative Eric Woods, a Kansas City Democrat, pointed to the workarounds. “Kids are smart. There are VPNs. There are browser settings that allow you to skirt around some of this stuff,” he said. Aaron Mackey of the Electronic Frontier Foundation argued the law will block adults from lawful content, undercut anonymity online, and put user data at risk.
Pornhub’s parent company, Aylo, has already answered laws like this the way it has in roughly two dozen other states: it blocked Missouri users back in December 2025 rather than comply. The legal backdrop is the June 2025 Supreme Court decision in Free Speech Coalition v. Paxton, which upheld Texas’s age-verification law and cleared the path for the wave Missouri just joined. What Missouri adds to that wave is teeth.
