Every few months a Singapore business asks us the same question in a slightly different form: if the Government makes social platforms verify how old their users are, what happens to our advertising? Usually the question is asked defensively, as though a new compliance burden is about to land on the marketing team.
It is the wrong worry. For an advertiser, the compliance burden already landed — in 2023, globally, and without Singapore doing anything at all. Meta stopped letting anyone target under-18s by interest, activity or gender three years ago. Google’s advertising policies say plainly that people under 18 are not eligible for personalised advertising of any kind. Whatever Singapore legislates, it will not tighten a targeting setting you still have.
What age assurance actually changes is something quieter and, for a business that spends real money on paid social, more consequential. It changes who the platform believes is a teenager — and today that belief rests on a self-declared birthday. This guide separates the three layers (what is already law in Singapore, what the platforms already do worldwide, and what has only been announced), and then works through the part nobody is modelling: the effect on your reach, your costs and your audience data. This is general information, not legal advice.
Layer one: what is already law in Singapore
Two IMDA codes are in force, made under Part 10A of the Broadcasting Act 1994, which since February 2023 has empowered IMDA to designate online services with significant reach or impact in Singapore and require them to comply.
The Code of Practice for Online Safety — Social Media Services took effect on 18 July 2023. It applies to services designated under section 45K(1), and the designated set has been Facebook, HardwareZone, Instagram, TikTok, Twitter (now X) and YouTube. It covers six categories of harmful content: sexual, violent, suicide and self-harm, cyberbullying, content endangering public health, and content facilitating vice and organised crime.
Buried in its protections for children is a clause that is squarely about advertising, and that we have never seen quoted in a Singapore marketing context. Paragraph 18 reads:
“Children must not be targeted to receive content that the Service is reasonably aware to be detrimental to their physical or mental well-being… In this regard, content targeting refers, but is not limited to, advertisements, promoted content and content recommendations.”
Two things follow. First, the duty is expressly imposed on the Service, not on you — it is the platform that must not target children with such content. Second, the mechanism by which a platform discharges that duty is by restricting what advertisers can do, which is exactly what has happened. Paragraph 20 adds that unless the service restricts children’s access outright, children must be given differentiated accounts with safety settings “set to more restrictive levels that are age appropriate by default”, with clear warnings if those defaults are opted out of. Paragraph 25 requires designated services to file annual online safety reports with IMDA.
The second code is the Code of Practice for Online Safety — App Distribution Services, in force from 31 March 2025. It requires designated app stores to minimise exposure to harmful content and, critically, to put age assurance measures in place to prevent users under 18 from accessing age-inappropriate apps. That is the first Singapore instrument to require age assurance rather than age declaration, and it operates at the app store rather than in the app.
Layer two: what the platforms already do, everywhere
This is the layer Singapore businesses consistently underrate, because it happened quietly and outside any Singapore process.
In January 2023 Meta announced that from February that year, “age and location will be the only information about a teen that we’ll use to show them ads”. It removed gender as a targeting option for reaching teens, removed interest and activity targeting, and stopped teen engagement signals — following a Facebook Page, engaging with an Instagram post — from informing ad delivery. From March 2023 it also gave teens Ad Topic Controls in Ad Preferences, with restricted topics pre-set to “See Less”.
Google’s position is blunter still. Its personalised advertising policy states that “Users under the age of 18 are not eligible for personalized advertising of any kind, including serving based on Predefined Google Audiences.” It also prohibits advertisers using advertiser-curated audiences from uploading customer information drawn from viewers of child-directed content.
So for a Singapore advertiser, as of today, targeting an under-18 audience already means: age and location on Meta, and no personalisation at all on Google. There is no interest targeting, no lookalike modelling off a teen seed, no retargeting pool built from teen behaviour, and no demographic refinement. This is not a Singapore rule, it is not new, and no Singapore legislation is going to make it stricter than “none”.
Layer three: what has actually been announced
MDDI’s factsheet of 4 July 2026, “Singapore’s Next Steps in Building Child-Safe Digital Environments”, sets out the direction in the Government’s own words: it “has announced plans to extend age assurance requirements to designated social media services, including requiring them to keep users under 13 off their services”, and for older children is “looking at how to make social media services safer by requiring age-appropriate experiences and safeguards.”
The same factsheet describes the consultation that will shape it: focus group discussions with parents and youths in June and July 2026, an MDDI–IPS forum with global regulators and industry in mid-July 2026, and a public survey for parents of children aged 0–17 running through Singpass until end-July. The questions being put include “whether children under 13 should be allowed access to social media platforms, and safeguards that should be in place for older children up to age 18”. It also records that the Online Safety Commission began operations in June 2026, giving victims of online harms a dedicated route to redress — a change we cover from the brand’s side in our guide to brand impersonation and the statutory torts.
Two honest caveats a marketing plan should carry. The mechanism has not been published: it is not yet known what counts as “robust” age assurance, whether it will be document-based, inference-based or device-level, or which services will be designated for it. And the timing is not fixed. Treat anything you read giving a precise commencement date or a specific verification method as commentary rather than as law. The direction is settled; the detail is not. We keep the broader regulatory picture current in our review of the Singapore digital marketing changes landing in 2027.
The part nobody is modelling: it is a data-quality event
Here is the argument that matters commercially, and it has nothing to do with compliance.
Right now, whether a Singapore user is treated as an adult by Meta, TikTok or YouTube is determined almost entirely by a birthday they typed into a form, often years ago, often as a child wanting an adult account. Every teenager who declared themselves 21 is, from the ad platform’s point of view, a 21-year-old. They sit inside your interest audiences. They are eligible for your retargeting. They are in the seed list your lookalike was built from. They count towards your estimated reach. And when they engage, their behaviour trains the delivery model.
Effective age assurance moves that population from the adult side of the line to the teen side. Nothing you are permitted to do changes. What changes is the composition of every audience you own. The consequences are ordinary media-planning consequences, and they are worth anticipating rather than discovering:
| What moves | Why | What to do about it |
|---|---|---|
| Addressable reach on youth-skewed audiences | Users reclassified as under-18 leave the targetable adult pool | Re-baseline reach estimates after the change rather than comparing to historic figures |
| CPMs on the remaining adult audience | A smaller pool with unchanged advertiser demand generally prices up | Treat any CPM step-change as a supply event, not a creative failure |
| Lookalike and Advantage+ seed quality | Seeds built from mixed-age data are modelling a population that no longer exists as defined | Rebuild seeds from post-change conversion data; do not extend an old lookalike |
| Year-on-year reporting | Audience definitions shift under your dashboards | Annotate the date in GA4 and your reporting so the discontinuity is visible later |
| Anything targeting 18–24 | The bottom of that band is where misdeclared ages concentrate | Expect the largest movement here; split it out before the change so you can measure it |
None of this is a reason to do anything drastic. It is a reason to annotate your analytics and re-baseline rather than panic when reach and CPM move on a date you did not schedule. The discipline is the same one we apply to any platform-side change that redefines a metric, and it is why the measurement conventions in our performance marketing guide insist on dated annotations rather than remembered ones.
The self-regulatory layer nobody reads
Alongside the statutory codes sits the Singapore Code of Advertising Practice (SCAP), administered by the Advertising Standards Authority of Singapore. It is industry self-regulation rather than law, its baseline principle is that all advertisements should be legal, decent, honest and truthful, and it states that special care should be taken in marketing communication directed towards or depicting children and young people — noting that how children perceive an advertisement depends on their age, experience and the context in which the message is delivered.
Three SCAP points bear directly on a digital campaign. Where online marketing is aimed at children of a certain age group, the content must be appropriate for that age group. Advertisements must not exaggerate what is attainable by an ordinary child using the product. And identifiable personal information about children should only be disclosed with the consent of a parent or legal guardian — which is a consideration for any user-generated content or competition mechanic involving minors, a topic we take further in our guide to user-generated content and the two gates it has to pass.
There is also a sector-specific layer: a framework governing food and beverage advertising targeted at children aged 12 or younger across all media in Singapore, which industry has been required to comply with since 1 January 2015, supported by ASAS interpretive guidelines. If you market food or drink and your audience includes primary-school-age children, that framework, not the platform settings, is the binding constraint on your creative.
What this looks like in practice: a Singapore tuition centre
Take the most common youth-adjacent Singapore business there is. A tuition centre in the heartlands wants secondary students in its catchment. The instinct is to target 13–16 year olds within 3km, interested in “education” and “exam preparation”. Under the rules above, almost none of that is available: on Meta the campaign gets age and location and nothing else, and on Google the audience cannot be personalised at all. What remains is a broad age band and a radius — which, on a teenage audience in a dense city, is close to buying untargeted impressions.
The plan that actually works inverts the audience. The buyer is the parent, not the student, and parents are adults, so every targeting tool is available on them: age 35–55, the same catchment, interests and behaviours intact, retargeting from the site, lookalikes from enrolled families, and search intent through Google. Reaching the student is then a content problem rather than a targeting problem — short-form video that gets recommended, a creator the cohort already follows, and organic presence in the places the algorithm serves rather than the places you buy.
Two constraints ride along with that plan. Anything shown to a child’s account is subject to paragraph 18 of the Online Safety Code, so promotional content that leans on exam anxiety is the category the platform’s classifier is most likely to judge detrimental. And under SCAP, the creative must not exaggerate what an ordinary child can attain with the product — which is a direct constraint on the results claims that dominate tuition advertising in Singapore. Both of those point the same way: the honest version of the creative is also the compliant one.
What to do now
Nothing here requires a strategy change. It requires an audit, and it is a short one.
- Find out whether you actually target under-18s. Most Singapore SMEs do not, and discover the answer is no in ten minutes. Check the age floor on every live ad set. If everything already starts at 18, layers one and two do not touch you and layer three only affects you through audience composition.
- Check the bottom of your age bands. Anything running 13–24 or 16–35 should be split so the under-18 portion is separately visible and separately measured — before the change, not after.
- Review your organic feed against paragraph 18’s language. Boosted posts are advertisements. If any of your content would be uncomfortable next to the Code’s harmful-content categories, the platform’s classifier is the one making that call, and it will make it conservatively.
- Date your lookalike and custom audiences. Record when each seed was built. When reclassification happens you will want to know which audiences predate it.
- Handle minors’ data deliberately. If a competition, UGC campaign or form can collect data from someone under 18, decide now how consent is obtained and evidenced. Our guide to PDPA consent and marketing tracking covers the mechanics.
- Do not buy a compliance product for this. The age-assurance obligation, when it lands, will fall on designated services and app stores. It will not fall on an SME running Meta ads, and any vendor telling you otherwise is selling to a fear rather than to a duty — one of the patterns in our list of agency red flags in Singapore.
If your brand’s audience genuinely is young — tuition, enrichment, youth sport, gaming, fast fashion — the strategic answer has been the same since 2023 and age assurance only sharpens it: you reach young audiences through content and creators, not through targeting, because targeting is the thing that has been taken away and content is not. That is a case for organic social media marketing and for the creator route we set out in our guide to influencer and KOL marketing in Singapore, and it is the sort of shift the results in our Singapore case studies are built on.
Frequently asked questions
Can I still advertise to under-18s in Singapore?
Yes, within narrow limits that already exist. On Meta, since February 2023, age and location are the only signals used to show ads to teens — gender, interests, activity and engagement-based targeting were all removed. Google’s advertising policies state that users under 18 are not eligible for personalised advertising of any kind. Separately, IMDA’s Online Safety Code for Social Media Services requires designated services not to target children with advertisements, promoted content or content recommendations the service is reasonably aware are detrimental to their physical or mental well-being.
Does the announced age assurance rule apply to my business?
On what has been published, no. MDDI’s stated plan is to extend age assurance requirements to designated social media services — the platforms themselves — and the existing App Distribution Services Code imposes age assurance on designated app stores. Neither reaches an ordinary advertiser. The effect on an SME is indirect: it changes which users the platforms classify as under-18, and therefore the composition of your audiences.
Which platforms are designated in Singapore?
The Code of Practice for Online Safety applies to social media services designated under section 45K(1) of the Broadcasting Act 1994. The designated set has been Facebook, HardwareZone, Instagram, TikTok, Twitter (now X) and YouTube. Designation can change, so check IMDA’s current list rather than relying on a fixed number.
What will age assurance do to my ad costs?
No one can put a figure on it honestly, because the mechanism and timing have not been published. The direction is predictable: users reclassified as under-18 leave the targetable adult pool, so a youth-skewed adult audience gets smaller while advertiser demand does not, which usually pushes CPMs up. The practical response is to annotate the date in your analytics and re-baseline reach and cost, rather than reading the movement as a creative or bidding failure.
Are there rules about advertising to children beyond the platforms?
Yes. The Singapore Code of Advertising Practice, administered by ASAS, requires special care in marketing communication directed towards or depicting children and young people: content aimed at a given age group must be appropriate for it, advertisements must not exaggerate what an ordinary child can attain with the product, and identifiable personal information about children should only be disclosed with a parent’s or guardian’s consent. There is also a framework governing food and beverage advertising to children aged 12 and under across all media, in force since 1 January 2015.
Where this leaves you
The headline is about verifying ages. The story for an advertiser is about data. Singapore’s statutory layer already tells platforms not to target children with detrimental advertising, the platforms have already removed almost every targeting lever you could have used on a teenager, and the change still to come lands on the services and the app stores rather than on you.
What it will do is redraw the boundary between two audiences you already buy against — and it will do so on a date that appears in your reporting as an unexplained step change unless you write it down. So the work is unglamorous: check your age floors, split your youngest bands out now, date your audience seeds, and annotate the change when it comes. If you sell to young people, invest in the routes that still work on them — content and creators — because the targeting route was closed three years ago and is not coming back.
If you would like your paid social reviewed for where it actually depends on audience definitions that are about to move, that is the kind of groundwork our social media marketing engagements start with. The wider cluster begins with our Singapore social media management guide.
Sources: MDDI, “Singapore’s Next Steps in Building Child-Safe Digital Environments (Factsheet)”, 4 July 2026; IMDA, Code of Practice for Online Safety — Social Media Services (in force 18 July 2023), paragraphs 4, 17, 18, 20 and 25; IMDA, Code of Practice for Online Safety — App Distribution Services (in force 31 March 2025); Broadcasting Act 1994, Part 10A and s45K(1); Allen & Gledhill, “Online Safety Code issued by IMDA takes effect”, 25 August 2023; Meta, “Continuing to Create Age-Appropriate Ad Experiences for Teens”, 10 January 2023; Google Ads policy, “Personalized advertising”, accessed 5 September 2026; Advertising Standards Authority of Singapore, Singapore Code of Advertising Practice and the Children’s Code for Advertising Food and Beverage Products. This is general information, not legal advice; rules change — verify before relying on them.
