What's Actually Working for UK Online Brands in 2026

Every year brings a new wave of predictions about what'll work in online retail. Most of them are rubbish — written by people who've never run a business, pushing whatever technology they're selling. Here's what we've actually seen work for UK brands this year.

The brands that grew did fewer things better

The most successful brands we worked with in 2025 weren't the ones trying every new platform and tactic. They were the ones who picked two or three things and did them properly.

One skincare brand we work with ignored TikTok entirely and focused on email and search. Their competitors were burning money trying to go viral while they quietly built a list of 40,000 customers who actually buy. Another brand stopped chasing new customers altogether for six months and focused entirely on getting existing customers to buy again. Their profit tripled.

The lesson: It's better to be excellent at a few things than mediocre at many. Before adding anything new, ask whether you've fully exploited what you're already doing.

Advertising costs kept rising, but some brands didn't care

Yes, Facebook and Google got more expensive again. The brands that struggled were the ones entirely dependent on paid advertising. The ones that thrived had multiple ways for customers to find them.

We saw a food subscription brand reduce their advertising spend by 40% while growing revenue by 25%. How? They'd spent two years building their email list and their presence in search results. When they cut advertising, those channels picked up the slack. They're more profitable now than they were spending twice as much.

The lesson: Advertising works, but dependency on it is dangerous. Every pound you spend should be buying you something permanent — an email address, a review, a ranking — not just a one-time sale.

Mobile experience became non-negotiable

This isn't new advice, but the gap between brands with good mobile experiences and everyone else widened significantly. Over 75% of traffic now comes from phones, and customers' expectations have risen.

We audited a fashion brand whose mobile checkout took 14 taps to complete. After rebuilding it to take 6 taps, their completion rate increased by 45%. That's not clever marketing — it's just removing obstacles.

The lesson: Actually use your own website on your phone. Go through the entire process of finding a product and buying it. If it's frustrating, fix it.

Customer retention finally got attention

For years, brands obsessed over acquiring new customers while ignoring the ones they already had. That started to change in 2025, partly because acquisition got so expensive.

The numbers are stark: acquiring a new customer typically costs 5-7 times more than getting an existing one to buy again. Yet most brands spend 90% of their budget on acquisition. The brands that rebalanced — spending more on retention through email, loyalty programmes, and better post-purchase experiences — saw their profits increase significantly.

The lesson: Before spending another pound finding new customers, calculate what a 10% improvement in repeat purchase rate would mean for your business. It's probably more than you think.

What we expect in 2026

Advertising will continue getting more expensive. The brands that survive will be the ones with diversified customer acquisition and strong retention. Customers will continue expecting faster, simpler experiences — especially on mobile. And the businesses that focus on fundamentals rather than chasing trends will outperform those distracted by whatever's shiny and new.

None of this is exciting. It's not going to get clicks on LinkedIn. But it's what actually works.