Paid social is where UK consumers spend their attention — and where many SMEs spend their budget with very little to show for it. The platforms work; the problem is usually that businesses pick the wrong platform for their audience, run creative that looks like an advert from 2009, or judge results too early. This guide walks through Meta, TikTok and LinkedIn ads for UK SMEs: who each platform suits, what creative actually performs, sensible budgets, and how to measure whether it's working.
The platforms, and who they're for
Meta (Facebook + Instagram)
Still the default for most UK SMEs, and for good reason. Over 40 million UK adults use Facebook or Instagram, and Meta's targeting — interests, behaviours, lookalikes of your customer list — remains the most flexible of any platform. Best for:
- Local services: trades, salons, clinics, estate agents — anything with a postcode.
- Ecommerce and retail: Instagram in particular is a shopping channel now, not just a photo app.
- Lead generation with longer consideration: courses, financial services, home improvements.
Facebook skews older (25–54 is the core UK commercial audience); Instagram skews younger and more purchase-ready. Most SMEs should run both placements and let Meta's delivery decide.
TikTok
The UK's fastest-growing ad platform, and no longer just for teenagers. Around a third of UK TikTok users are over 35. TikTok ads suit:
- Products with visual or demo-able appeal: food, fashion, beauty, gadgets, home goods.
- Brands with a personality: founder-led businesses do disproportionately well here.
- Recruitment and training: TikTok is quietly huge for reaching 18–30 job seekers and course buyers.
TikTok's algorithm finds buyers better than its targeting tools do, so creative volume matters more than audience precision. Plan to test many variations.
Expensive but unmatched for B2B. UK click costs run £4–£12+, so this only works when the deal size justifies it: professional services, software, recruitment, commercial property. LinkedIn's job-title and company targeting is precise enough to reach, say, finance directors at 200–1,000-employee firms in the North West. If your average customer is worth thousands, that's a bargain. If it's worth £50, it isn't.
Creative that works (and creative that doesn't)
The single biggest lever in paid social is creative, not targeting. Rules that hold across platforms:
- Look native, not corporate. The best-performing SME ads look like organic posts: a founder talking to camera, a real customer unboxing, a before-and-after filmed on a phone. Polished TV-style creative consistently underperforms on TikTok and Instagram Reels.
- Hook in the first two seconds. Lead with the outcome or the problem, not your logo. "We fit kitchens in Manchester in 5 days" beats your company ident every time.
- One message per ad. An ad that sells the product, the offer, the guarantee and the brand story sells none of them. Pick the single strongest angle.
- Subtitles always. Most social video is watched on mute. If your point needs sound, it's lost.
- Fresh creative monthly. Ad fatigue is real: performance on a single creative typically decays within 4–6 weeks. Budget for ongoing production, even if it's just a phone and a tripod.
UGC-style content — real people, real settings, slight imperfections — is not a trend, it's the format social platforms reward. A Manchester solicitor filming a 40-second "three things to check before you buy a leasehold flat" will outperform a stock-photo carousel every week of the year.
Budgets: what to actually spend
Honest numbers for UK SMEs:
- Testing phase: £500–£1,500/month per platform. Below this you won't get enough data to learn anything in a reasonable timeframe.
- Give it 4–6 weeks before judging. The algorithm needs roughly 50 conversions per ad set to optimise properly; starving it of budget then declaring "it didn't work" is the most common paid-social mistake.
- Lead gen benchmarks: expect £15–£60 per lead depending on sector. If you're paying £100+ per lead on Meta, something is wrong — usually the offer, the landing page, or the audience definition.
- Ecommerce: judge on ROAS. A 2–3x return is a reasonable starting target for cold traffic; retargeting should do 4x+.
Start with one platform, not three. Spreading £1,000/month across Meta, TikTok and LinkedIn gives each algorithm nothing to work with.
Measurement: the part everyone gets wrong
Since Apple's privacy changes, platform-reported conversions undercount reality — sometimes significantly. A practical UK SME measurement setup:
- Install the pixel/API properly. Meta's Conversions API (server-side tracking) alongside the browser pixel recovers a meaningful chunk of lost attribution. This is technical but worth doing once, properly.
- Use UTM tags on every ad. Then check GA4 for the traffic, not just the platform's dashboard.
- Track the business outcome, not the click. Cost per lead is a start; cost per qualified lead and cost per sale are the numbers that matter. Tag leads in your CRM by source.
- Watch for lift, not just last click. Ask new customers "where did you hear about us?" You'll be surprised how many say Instagram when analytics says Google.
The five mistakes to avoid
- Boosting posts instead of using Ads Manager — boosted posts optimise for engagement, not customers.
- Targeting too narrowly — a 5,000-person audience will exhaust in days and cost you a fortune per result.
- No retargeting — website visitors and video viewers are your warmest audience; ignoring them is leaving money on the table.
- Sending traffic to a slow or confusing landing page — paid social traffic is impatient; every extra click halves conversion.
- Pausing after one week — see the algorithm learning period above.
We run paid social for UK businesses that want enquiries and sales, not vanity metrics — Meta, TikTok and LinkedIn campaigns built around your offer and your audience, with creative direction and proper tracking. See our social media marketing service, or pair paid social with content marketing so your organic and paid efforts pull in the same direction. Wondering how paid social compares to programmatic display? Read programmatic vs PPC. Get a free consultation.
