How age verification works
Laws set the result, and the site picks a method that reaches it: an ID check, a face scan, a bank or card check, or a digital ID.1, 2 Ticking a box that says you are 18 is not enough in the UK, Brazil or, in the Commission's view, the EU.1, 3, 4
Checked 28 October 2026 against the sources.
The methods, and which laws name them
The UK lists methods that can be highly effective. US state laws like Texas's and Arizona's name the kinds of check a site may use.1, 2, 5
| Method | What it checks | Named in |
|---|---|---|
| Government ID | A passport or driving licence, often matched to a photo of you | UK (photo ID matching), Texas, Arizona1, 2, 5 |
| Facial age estimation | An estimate of your age from a selfie or short video | UK1 |
| Transactional data | Records of an exchange, such as mortgage, education or employment records | Texas, Arizona2, 5 |
| Open banking | Your bank confirms you are an adult | UK1 |
| Credit card check | A card that only adults can hold | UK1 |
| Mobile network check | Whether your phone account has age restrictions | UK1 |
| Digital ID | A reusable proof of identity or age held in an app | UK, Texas, and the EU's age verification app1, 2, 6 |
| Email-based age estimation | An estimate from where your email address has been used | UK1 |
This page describes laws and regulator guidance. It is not legal advice.
What does not count
Where the check happens
Most laws put the check on the site. Newer ones move it to the app store, and the EU's proposal adds a way to handle accounts that already exist.
At the app store
Texas's SB 2420 makes app stores verify each new account holder's age category and link a minor's account to a parent's.7 Read the Texas page for its court history.
From what an account already shows
Under the proposed EU KIDS Act, providers would estimate the age of existing account holders from proxies such as account age or credit card details.8 The UK government says many adults won't need a new check for social media under its planned ban, for example if their account has been open more than 16 years.9
What a site may keep
Some laws limit what happens to your data after the check. These are duties on the company, not a promise about any one verifier.
| Law | What it says |
|---|---|
| Texas HB 1181 | The site, or a third party that checks ages for it, may not retain any identifying information. Up to $10,000 a time for keeping it.2 |
| Arizona, Laws 2025 ch. 193 | No retaining identifying information, and no passing it to any federal, state or local government. A person whose information was kept can sue.5 |
| Texas SB 2420 | App stores must collect only the personal data needed for the age check, consent and compliance records, and send it encrypted.7 |
Questions people ask
Does age verification store your face or ID?
Why is age verification everywhere now?
Many laws started at once. UK checks for porn were due by July 2025,1 Brazil's law took effect in March 2026,3 and Texas's app store law has been enforced since June 2026.10 See the full list.
Can I choose the method?
The site or platform picks which methods it offers. Ofcom's list means a UK service has several ways to meet the standard, not only ID uploads.1
Sources 10
- Age checks to protect children online, 16 January 2025, Ofcom. Read 28 October 2026 from the Internet Archive copy of 24 October 2026.
- HB 1181, 88th Legislature, enrolled text, Texas Legislature Online. Read 28 October 2026.
- Lei nº 15.211, de 17 de setembro de 2025, art. 9, Presidency of Brazil. Read 28 October 2026 from the Internet Archive copy of 22 October 2026.
- Commission preliminarily finds Pornhub, Stripchat, XNXX and XVideos in breach of the Digital Services Act, 26 March 2026, European Commission. Read 28 October 2026.
- Laws 2025, Chapter 193 (HB 2112), Arizona Legislature. Read 28 October 2026.
- EU age verification, European Commission. Read 28 October 2026.
- SB 2420, 89th Legislature, enrolled text, Texas Legislature Online. Read 28 October 2026.
- EU KIDS Act to restrict social media platforms' access to children in the EU, 17 September 2026, European Commission. Read 28 October 2026.
- Fact sheet: new rules to protect children online, Department for Science, Innovation and Technology. Read 28 October 2026.
- Update for apps distributed in Texas, 3 June 2026, Apple Developer News. Read 28 October 2026.
Every fact here comes from the law, the regulator or the company, checked again and dated. How we check