Is paid social costing you in the long run?

Paid social is unquestionably a vital part of the modern media mix, but is it too often being mistaken for an entire digital media strategy? In 2025, social accounted for 28% of UK digital ad spend, while search remained the largest channel at 44%, which is a useful reminder that digital performance does not begin and end inside social platforms.

That matters because channel dominance often creeps in quietly. A platform starts performing well, teams become comfortable with its tools and reporting, and before long it is taking a disproportionate share of budget simply because it is familiar, fast and easy to scale. The issue is not that paid social does not work; it is that it cannot do every job equally well.

In the first piece in this series, I argued that marketers can miss valuable opportunities and audiences when they focus too narrowly on social and overlook the open web. In the second, I looked at the growing role of video and made the case that attention, while important, is not the same as persuasion. This third article in the series builds on both points: if reach is broader than social, and if attention alone is not enough, then a paid digital strategy should not be over-reliant on paid social.

Where paid social works

Paid social still earns its place. It is excellent at generating rapid awareness, supporting launches, amplifying content and retargeting users who already know something about a brand. The scale of advertiser demand reflects that: UK social media ad spend rose 21% in 2025 to £11.5 billion, with video responsible for 59% of all social investment.

Those are obviously not small numbers, and they show why social remains a central planning channel. But they also reveal how easily the market can become biased towards what is most visible in reporting dashboards: impressions, views, clicks and frequency. Those metrics have value, but they do not always tell the whole story about quality, context or conversion.

Where paid social falls short

The challenge comes when paid social is asked to do too much. It is often strongest in the upper funnel, where the goal is visibility or re-engagement, but weaker when used as the sole answer to persuasion, consideration and intent capture.

That is especially true when success is being judged on platform metrics (which let’s not forget are set by the platform!) rather than business outcomes.

This is where my argument from the video article becomes relevant. A format can be highly effective at stopping the scroll without being equally effective at shifting perception or driving action. Paid social can create the impression of efficiency because the data is immediate and abundant, but a campaign that looks strong in-platform can still be underperforming when judged against the wider paid media objective.

Why balance matters

The strongest paid media strategies give channels different jobs. Search remains such a large part of the market because it captures demand when people are actively looking for answers, products or providers; in 2025, UK search spend reached £17.9 billion.

That does not mean every brief should pivot to search, but it does show the continued importance of intent-led media alongside awareness-led media.

The same principle applies to publisher environments and other open web placements. Context influences how advertising is received, and IAS reports that more than 70% of consumers say their perception of an ad is shaped by the content around it. That is an important counterweight to feed-based environments, where the surrounding context can be more volatile and less controlled.

There is also a resilience argument. When a large amount of budget is concentrated in a small number of ecosystems, advertisers become more exposed to cost inflation, algorithm changes and measurement limitations set by those platforms.

What a better mix looks like

A stronger paid digital strategy is not anti-social; it is simply less dependent on social. It uses paid social where it is most effective but supports it with channels and formats that can do different jobs across the funnel.

In practice, that means thinking less about which channel is easiest to buy and more about what role each one should play.

For some brands, particularly those chasing young audiences, paid social may still deserve a significant share of budget. But it should sit within a broader paid media plan that also includes channels geared towards intent, context and persuasion.

That is particularly important for advertisers using content-led paid media, where the environment in which a message appears can be just as important as the message itself.

That is also where formats such as native articles and content partnerships can play a valuable role: not as a replacement for everything else, but as part of a more balanced paid digital mix. Used well, they can bridge the gap between awareness and action by combining the scale of paid distribution with the depth and context that shorter social formats often cannot provide.

The planning question to ask

The most useful question is not whether paid social works. It clearly does. The better question is whether it is doing too much of the work in your plan.

If the answer is yes, it is worth reassessing the balance. Social can still play a major role, but it should not dominate by habit. A healthier paid digital strategy usually comes from assigning clearer roles to different channels, judging them against the right outcomes and making sure the mix reflects how people actually move from awareness to consideration to action.