The rise of the Polyclass: why Britain’s class system is fragmenting – and what it means for brands

Social class has long been one of the defining structures of British society – shaping identity, opportunity and perception. It has also been a cornerstone of how brands segment and understand consumers. 

New research from Attest reveals that structure is beginning to shift. Class identity in Britain is no longer fixed or singular. Instead, it is becoming fluid, layered and, for many, internally contradictory. A growing number of people no longer see themselves as belonging to one class alone – but two at the same time.

We call this group the ‘Polyclass’. And their emergence signals a deeper transformation in how identity works in modern Britain – one that brands can’t afford to ignore.

Britain’s class identity is no longer fixed

At a surface level, class still appears stable. Many people continue to identify with familiar labels like working, middle or upper class. But beneath that, the data tells a more complex story.

• 39% of Brits say they are no longer the class they grew up in
• 25% say they have changed class and no longer identify with their former status
• 1 in 7 (14%) now identify with more than one class simultaneously

This equates to nearly 6 million people in the UK who exist between traditional class boundaries.

Taken together, these findings point to a clear shift: class is no longer a fixed category, but something increasingly shaped by both background and current circumstances.

The emergence of the Polyclass

Traditionally, moving class meant leaving one identity behind and adopting another. Today, many people are doing something different: carrying multiple class identities at once. This is what defines the Polyclass consumer.

Rather than seeing themselves as having “become” middle class or working class, they identify with elements of both – reflecting where they came from and where they are now.

This is particularly pronounced among younger generations: 48% of Millennials and 44% of Gen Z say they have either moved class or identify across multiple classes.

But this fluidity is not evenly distributed. Those from more privileged backgrounds are more likely to adopt a multi-class identity, while those from working-class backgrounds are more likely to maintain a single, stable classification.

This suggests that class fluidity is not simply about upward mobility – it is also about how comfortable people feel redefining their identity.

Fluid, but not free: the tension at the heart of modern class identity

While class is becoming more fluid, it is far from unconstrained. Nearly 70% of Brits say it is at least somewhat possible to change class, but only 21% believe class is fully flexible.

At the same time, 49% say background still matters, even if change is possible, while 21% believe class is difficult or impossible to change.

This creates a fundamental tension. People feel able to move between classes – but not to fully escape where they came from. The result is a form of identity that is fluid, but not free.

Rather than replacing one class identity with another, many individuals layer new identities on top of old ones. This explains the rise of the Polyclass: people are not moving cleanly between categories, but inhabiting several at once.

The performance of class: why most people are adapting to fit in

One of the clearest signs that class identity is shifting is not just how people describe themselves, but how they behave.

For most Brits, class is no longer something that sits quietly in the background. It is something they actively navigate. More than half say they adjust how they present themselves to fit different social or professional groups at least occasionally, suggesting that moving between environments often means moving between versions of themselves.

• 28% change how they behave
• 21% change how they dress
• 19% modify their speech patterns

These adaptations are rarely dramatic, but they are widespread. People talk differently depending on who they are with. They dress differently for different settings. They subtly shift how they behave, what they emphasise, and what they downplay. Taken together, these small adjustments add up to a kind of social fluency – the ability to read a room and respond accordingly.

This is often described as code-switching, but in the context of class, it reflects something deeper. As traditional boundaries blur, individuals are no longer anchored to a single, fixed identity. Instead, they are navigating a more complex social landscape, where fitting in can require constant calibration.

This behaviour is particularly pronounced among younger generations: 29% of 18–24s “frequently” code-switch to fit in, compared to 10% of those aged 55–64. Younger adults are far more likely to adapt how they act and present themselves depending on context, suggesting that for them, class is not just a background characteristic, but something more active and situational. It is not simply what you are – it is something you manage.

The psychological cost of class fluidity

This increased flexibility comes at a cost. If class identity is no longer fixed, it is also no longer entirely secure. For many, the need to continually adjust and reassess where they fit creates a sense of instability. Around four in ten people say they have experienced imposter syndrome linked to their class identity – a feeling that they don’t quite belong in the spaces they occupy.

These feelings are not evenly distributed. Younger people, who are also the most likely to move between identities, are significantly more likely to feel uncertain about where they belong. Among Gen Z in particular, class identity is more likely to be associated with embarrassment, anxiety or self-doubt.

Part of this stems from a disconnect between internal identity and external perception. People are not only asking themselves where they fit, but also trying to anticipate how others see them. Class isn’t simply assigned or inherited; it’s something people interpret, negotiate and, at times, question.

For many, this means living with a degree of ambiguity. Rather than a stable label, class becomes an ongoing process – shaped by context, perception and personal experience.

What defines class today?

Despite this fluidity, class has not disappeared – rather it has evolved. In Britain, class has never been defined by income alone. Historically, it has been shaped by a broader infrastructure of privilege – including upbringing, education, accent, social networks and cultural capital. Financial success could shift someone’s circumstances, but it did not necessarily grant full access to the social and cultural markers associated with higher class status.

What the data suggests is not a complete break from this model, but a gradual reweighting of it. Today, people are more likely to point to income, occupation and where they live as key indicators of class, signalling a shift towards more tangible, measurable factors.

At the same time, newer and more personal signals are becoming increasingly important, particularly among younger generations. For Millennials, career plays a central role in how they define their class position, while Gen Z are more likely to look ahead – tying class identity to ambition and future aspiration.

There is also a notable distinction between how people think they are judged and how they define themselves. When considering external perception, visible markers such as appearance, wealth and career tend to take precedence over class itself. Yet when people reflect on their own identity, class still holds weight, sitting alongside factors like ethics and intelligence as part of how they understand who they are.

Rather than disappearing, class is becoming more layered – shaped by a combination of structural realities, cultural signals and personal interpretation.

Why this matters for brands

For brands, these findings expose a growing gap between traditional segmentation models and lived consumer reality.

Class has long been used as a proxy for behaviour, preference and purchasing power. But that model assumes class is stable, singular and externally defined, which our data shows it is not.

Today’s consumers may:

• Identify with multiple classes at once
• Move between different class identities depending on context
• Reject the labels that would traditionally be applied to them

This creates a challenge for targeting. Two people with similar incomes or occupations may have very different identities, aspirations and behaviours – because they understand their class differently.

At the same time, the rise of code-switching means consumers present different versions of themselves in different environments. A single static profile is unlikely to capture this complexity.

The risk of relying on outdated class frameworks is that it can lead to misreading audiences and missing nuance in how people see themselves.

Understanding consumers today means understanding the layers of identity they carry – and the contexts in which those identities shift. That requires going beyond traditional frameworks and building a richer, more nuanced picture of who people are.

To explore how qualitative research can help unlock this deeper understanding, download our white paper: A new gold standard for consumer profiling – a qualitative methodology powered by AI-moderated interviews.

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Methodology

This research was conducted by Attest in April 2026 among 2,000 UK adults aged 18–65 [view dashboard].

The sample was nationally representative, with respondents evenly distributed across household income brackets and balanced by key demographics including age, gender and region.

To explore class identity, respondents were asked:

• What social class they grew up in
• What class they believe society would classify them as today
• What class they personally identify with
• Whether they identify with more than one class

“Polyclass” respondents are defined as those who selected more than one class when describing their identity.

The study also explored attitudes towards class mobility, perceptions of judgement, and behaviours related to social adaptation, including how people adjust their presentation across different social and professional contexts.

Segment sizes*

Working class: 764
Lower middle class: 401
Middle class: 587
Upper middle and upper class: 180
Unsure: 64
*Class respondents believe they are on paper