Gen Z vs Millennial Marketing: What Actually Changes in 2026

Oscar OwenCEO & Founder, Advertain. Published 4 November 2026.

Most gen z vs millennial marketing advice is built on a cartoon. Gen Z lives on TikTok and hates ads. Millennials are on Facebook, buying houses and nostalgic for the early 2000s. Some of that is true. A lot of it is out of date.

We pulled together the newest public data from Pew Research Center, Ofcom, the Advertising Association’s Credos think tank, Morning Consult, Deloitte and World Data Lab. The picture is more interesting than the stereotypes.

On creators, the two generations now look almost identical. On platforms, TV and trust in advertising, they split sharply. And the money is moving faster than most media plans.

The short version

Gen Z vs millennial marketing: who are we talking about?

Start with the definitions. Pew Research Center defines millennials as people born from 1981 to 1996, and Gen Z as anyone born from 1997 onwards.

In 2026 that makes millennials roughly 30 to 45 years old. Adult Gen Z are 18 to 29. The oldest Gen Z are now the age millennials were when brands first started worrying about them.

Pew itself warns that generations are a blunt tool. The differences inside a generation can be as large as the gaps between them. A 19 year old student and a 29 year old parent are both Gen Z. So treat everything below as averages, not as personas.

One more caution. Most surveys report age bands, not birth years. Where a study uses 18 to 24 or 18 to 29 as its Gen Z group, we say so.

Where do Gen Z and millennials spend their time online?

The cleanest US data comes from the Pew Research Center social media fact sheet, based on 5,511 adults surveyed in the first half of 2026. It compares 18 to 29s, a fair stand in for adult Gen Z, with 30 to 49s, which covers most millennials.

YouTube is close to universal for both. After that the lines diverge.

Gen Z is 20 points more likely to use TikTok and 23 points more likely to use Snapchat. Millennials are ahead on Facebook and on Nextdoor, the neighbourhood app. That is the life stage gap showing up in the data. People with homes and children join local groups.

Daily use widens the gap. Pew’s 2025 report found 47% of 18 to 29s use TikTok every day, against 28% of 30 to 49s. Facebook flips it: 58% of 30 to 49s use it daily, against 49% of the younger group.

Millennials are not standing still either. Sprout Social found millennials now name TikTok as their favourite channel for product discovery, and in a 2025 survey 63% said they planned to use Reddit. The old idea that millennials stopped at Facebook does not hold.

The UK picture: TV is the real divide

In Britain, the sharpest split is the television. Ofcom’s Media Nations 2025 report breaks down how much video each age group watches at home every day, using Barb data for 2024.

16 to 24s spend 90 minutes a day on video sharing platforms like YouTube and TikTok. 25 to 34s spend 71. The older group gives far more time to subscription streaming, live TV and broadcaster apps.

Broadcasters take 19% of viewing among 16 to 24s and 27% among 25 to 34s, according to Ofcom. Only 45% of 16 to 24s watch broadcast TV in an average week, against 62% of 25 to 34s.

For planners, this is the clearest practical difference in the whole report. A TV or streaming plan still reaches a good share of millennials. For Gen Z it reaches a minority, and YouTube does the job TV used to do.

Which generation trusts advertising more?

This is where the stereotype is most wrong. Research from Credos, the Advertising Association’s think tank, found young adults are the most trusting age group in the UK. In 2024, 57% of 18 to 34s said they trusted advertising, against 44% of 35 to 54s and 21% of over 55s.

Inside that group, the split is striking. Credos found 25 to 34s were 20 points more trusting of advertising than 18 to 24s. Their trust rose 24 points between 2022 and 2024.

Credos links the rise to the cost of living. Among 25 to 34s, trust in advertising moved closely with inflation. Our reading: when budgets got tight, ads became a more useful way to find deals and make choices.

Gen Z is more sceptical. Credos also cites research from Channel 4 showing Gen Z trust influencers more than advertising, at 42% against 39%.

Millennials are not the cynical generation. In the UK, they are the people most likely to believe your ads.

Do Gen Z and millennials trust creators the same way?

Almost. A Morning Consult survey of 6,283 US adults in September 2026, reported by Net Influencer, found 64% of Gen Z and 63% of millennials trust the influencers they follow. Among all adults it was 49%.

Two thirds of Gen Z (67%) said they had bought something in the past year because an influencer endorsed it. So had 60% of millennials. And 78% of Gen Z follow influencers on YouTube, against 67% of millennials.

The long view is the bigger story. Among Gen Z and millennials, trust in influencers rose from 51% in 2019 to 64% today. Over the same period, trust in recommendations from friends and family fell from 84% to 78%.

A second Morning Consult study with Business Insider, published in October 2026, tells the same story. 62% of Gen Z and 64% of millennials trust creator recommendations. 48% of Gen Z and 52% of millennials buy because of them often or sometimes. On creators, millennials are not behind. They are level, or slightly ahead.

Where the creator gap still shows

Ask the question differently and a gap appears. The Modash Creator Trust Report 2026, a survey of 1,042 US adults in June 2026, found 60% of Gen Z rate creators as trustworthy, against 45% of millennials. Gen Z was the only group that ranked creators they follow level with friends and family.

Gen Z also follows more of them. Morning Consult found 44% of Gen Z follow 50 or more creators. The difference is depth, not direction. Both generations trust creators. Gen Z lives with more of them.

What builds that trust is the same for both. Modash found trust rises when a creator clearly uses the product (69%) and falls with AI generated content (43%) and scripted delivery (36%).

Money, homes and life stage

If you want to understand the real differences, look at bank balances, not birth years. The Deloitte 2026 Gen Z and Millennial Survey asked 22,595 people across 44 countries about money and life plans.

The two generations share the same squeeze. Nearly half of both live month to month. More than half are putting off big decisions.

But they sit at different points of it. Gen Z is more likely to feel locked out of home ownership, and more hopeful about the future. Millennials are more worried about the cost of living right now, because they carry more of it: rent or mortgages, childcare, family food shops.

The spending power shift

Despite all that, the money is growing fast. World Data Lab estimates millennials will spend around $16 trillion worldwide in 2026, about 23% of global consumer spending. Gen Z will spend around $13 trillion, or 18%.

The detail that matters most is per head. World Data Lab found Gen Z aged 25 to 29 spends 14% more per person than millennials did at the same age in Western markets, and 53% more elsewhere.

So Gen Z is not a small audience you can build for later. It is already outspending millennials at the same stage of life.

Does humour work on both generations?

Yes, and this is one of the safest bets in the whole report. In a 2022 Oracle study with the author Gretchen Rubin, reported by Marketing Dive, 91% of people said they prefer brands to be funny. Among Gen Z and millennials it rose to 94%.

The tone differs. Ipsos found both generations lean towards dark humour, and that Gen Z gets far more of its comedy from social feeds. 79% of Gen Z use social media for a quick laugh, against 64% of millennials. 81% of Gen Z get comedy from TikTok.

The same Ipsos work found 90% of Gen Z and millennials would view a brand more favourably if it partnered with their favourite comedic creator. Only 28% of people said brands match their sense of humour. That gap is the opportunity.

We have written more about what lands with younger audiences in our Gen Z content ideas report.

How is AI changing discovery for each generation?

AI is starting to show up in how both generations find products, but it is still small. Morning Consult found 12% of Gen Z and millennials name an AI assistant as one of their main routes to discovering products, against 9% of all adults, according to Net Influencer.

For Gen Z, search still edges out creators as a discovery route, at 37% against 33%. When an AI tool answers a question, it pulls from the same pages, videos and threads that search ranks. Our guide to generative engine search (GEO) explains how those answers choose their sources.

AI creators are a harder sell. The share of millennials likely to follow an AI influencer fell from 54% to 43%, while Gen Z held flat at 42%. Combine that with the Modash finding that AI generated content lowers trust, and the direction is clear.

I put it this way on LinkedIn earlier this year, and the data has only strengthened the point.

People follow people. Not AI generated scripts or faceless YouTube channels.

Use AI for speed. Use people for trust. Both generations can tell the difference.

What actually changes: a practical plan

Here is how we would turn the data into decisions. Most brands do not need two separate strategies. They need one strong idea and different routes to each audience.

1. Plan by life stage, then by generation

Start with what people are going through: first jobs, renting, a first child, a first home. Those moments explain more about buying than a birth year. Use generation as a filter on top, not as the brief.

2. Keep one master brand and vary the delivery

The core story should not change between audiences. The format, creator and platform should.

3. Put creators at the centre for both

Trust in creators is now level across the two generations. Choose creators who genuinely use the product, give them room to speak in their own words and avoid scripted reads. Our creator marketing report covers models and budgets.

4. Split the media plan where the data splits

For Gen Z, put YouTube, TikTok and Snapchat first and treat TV as optional. For millennials, keep streaming and broadcaster video in the mix, and do not write off Facebook, where daily use is still higher than among younger adults.

5. Use advertising harder on millennials than you think

UK 25 to 34s are among the most trusting audiences for advertising in the country right now. Clear, useful ads that help them save money or time work well with this group. For Gen Z, route more of the message through people.

6. Make people laugh

Humour is wanted by both generations and delivered by few brands. Work with comedic creators rather than writing jokes in a meeting room. Keep it specific and slightly dark rather than safe.

7. Build for search and AI answers

Both generations still search before they buy, and AI tools increasingly answer for them. Publish clear, useful video and articles that answer the questions your buyers ask. See how Gen Z discovers brands for more on the younger side.

The same idea sits behind everything we make. As I put it in another LinkedIn post:

‘Real’ is what brands are typically paying for. And the better AI gets, the more valuable that becomes.

For brands building their own voice, our guide to founder led content and our report on long form vs short form video show how to give both generations something real to follow.

Frequently asked questions

What is the main difference between Gen Z and millennial marketing?

The biggest differences are platforms, TV and trust in advertising. Gen Z leans towards TikTok, Snapchat and YouTube and watches little broadcast TV. Millennials still use Facebook and streaming services more, and in the UK they trust advertising far more than Gen Z. On creators, the two generations are now almost level.

What age are Gen Z and millennials in 2026?

Using Pew Research Center definitions, millennials were born from 1981 to 1996, so they are roughly 30 to 45 in 2026. Gen Z were born from 1997 onwards, so adult Gen Z are 18 to 29.

Do millennials trust influencers more than Gen Z?

It depends on the survey. Morning Consult found 64% of Gen Z and 63% of millennials trust influencers they follow. Modash found a wider gap, with 60% of Gen Z and 45% of millennials rating creators as trustworthy.

Which generation spends more, Gen Z or millennials?

Millennials do today. World Data Lab estimates around $16 trillion of global spending by millennials in 2026, against $13 trillion for Gen Z. But Gen Z spends more per person than millennials did at the same age.

Should brands run separate campaigns for Gen Z and millennials?

Usually not. Most brands do better with one strong idea, delivered through different creators, formats and platforms for each audience. Plan around life stage first and generation second.

Want to see how brands build content both generations choose to watch? See our work or talk to us about your brand.