Updated on 9 November 2026 by Nicolas Finet, CEO of Sortlist. This guide has been rewritten for UK businesses in 2026: it gives current cost per click and cost per thousand ranges for Google, Meta, LinkedIn and TikTok, the size of the UK digital ad market, how to set a budget and how costs vary by sector, with warnings about averages.
The cost of online advertising depends on the platform, your audience, your sector and the competition for the same attention. There is no standard price, and published averages hide huge variation. This guide shows typical UK ranges and a method for setting a budget that makes sense for your business.
Key takeaways
- UK digital advertising reached £21.2 billion in the first half of 2026, up 13% on the year, and mediasense forecasts £45.2 billion for 2026, so competition for attention is rising.
- 2026 UK benchmarks: Meta cost per click about £0.45-£1.10 (wider ranges reported), LinkedIn about £2.00-£6.25, with legal services averaging around £8.25 a click on search and retail around £0.95.
- Set the budget backwards from your goal: how many customers you need, your conversion rate and the maximum you can pay for each.
How much does online advertising cost?
Online advertising is usually bought on one of these bases:
| Model | What you pay for | Typical use |
|---|---|---|
| CPC (cost per click) | Each click on your ad | Search, social, shopping |
| CPM (cost per thousand impressions) | 1,000 times your ad is shown | Awareness, video, display |
| CPA / CPL (cost per action or lead) | A conversion or a lead | Performance campaigns |
| Fixed fee or sponsorship | A placement for a period | Newsletters, publishers, creators |
Your total cost is media spend plus creative production, tools and management fees. The UK market is large and growing: IAB UK and mediasense report £21.2 billion of digital advertising in the first half of 2026, with retail media up 32% and video up 18%.
Types of online advertising and their costs
| Channel | Typical UK cost (2026 guides) | Notes |
|---|---|---|
| Google Ads (search) | Average UK search CPC about £1.95; service businesses £1.85-£4.20; legal services about £8.25; retail about £0.95 | Varies hugely by keyword and competition |
| Meta (Facebook and Instagram) | CPC about £0.45-£1.10 in one 2026 guide; other guides report £0.26-£2.00; CPM about £3-£18 | Depends on audience, placement and season |
| CPC about £2.00-£6.25; CPM about £20-£35 | The most expensive paid social platform, but precise B2B targeting | |
| TikTok | Varies; creative production is the main cost | Native video performs best |
| Display and programmatic | CPMs from low single pounds, depending on quality and targeting | Watch brand safety and invalid traffic |
| Amazon and marketplaces | Pay-per-click; see Amazon advertising | High purchase intent |
| Email and SMS | Low per-message costs; see email marketing cost | Owned list required |
| Influencers and creators | See social media pricing by platform | Fees, plus usage rights |
“LinkedIn is the most expensive paid social platform by a wide margin.”
Media Performance, Paid social advertising costs UK 2026
Pay-per-click (Google advertising)
In search, you bid for keywords, and the price depends on competition, ad quality and landing page experience. A UK benchmark report puts the average UK search CPC at about £1.95, but warns that this figure alone is close to useless: legal, finance, insurance and software terms cost far more than retail or local services. See search engine advertising for how the auction and Quality Score work.
Social media advertising
Social platforms price by audience, placement and competition. Costs rise in the fourth quarter, when retail advertisers compete for attention. Creative quality matters: strong creative can lower your cost per result.
Content marketing and SEO
These are not pay-per-click but have costs in people, production and tools. They build value over time. See content marketing price and advanced SEO services for UK ranges.
Mobile and app advertising
App install and in-app ads are priced by cost per install or per thousand impressions, with wide variations by country and platform. See mobile app marketing.
Factors that affect online advertising costs
- Industry and competition: sectors with high customer value pay more per click.
- Audience targeting: narrow, valuable audiences cost more per impression.
- Quality and relevance: better ads and landing pages reduce costs on platforms that reward quality.
- Season and events: Black Friday and Christmas raise prices.
- Placement and format: video, feeds, stories, search and display differ.
- Bidding and automation: settings, targets and learning phases influence results.
- Location: London and large cities may cost more.
- Budget size and available funds: small budgets exit the learning phase more slowly.
How to set your online advertising budget
- Define the goal: sales, leads, calls, awareness.
- Work out your numbers: average order value or customer value, margin and conversion rates.
- Calculate your maximum cost per acquisition: the most you can pay for a customer and stay profitable.
- Estimate the traffic needed: customers needed divided by conversion rate gives clicks required; multiply by expected CPC for the budget.
- Add overheads: creative, tools and management fees.
- Split across channels based on where your audience is and where measurement is reliable, and keep a reserve to scale winners.
- Test and review: start small, learn, then scale.
| Example (hypothetical) | Value |
|---|---|
| Target: new customers a month | 50 |
| Website conversion rate | 2% |
| Clicks needed | 2,500 |
| Expected CPC | £1.50 |
| Media budget | £3,750 a month |
| Cost per customer | £75 |
If a customer gives you £60 of profit, this campaign loses money on first sales; improve conversion rate, lower CPC or increase customer value. See conversion rate optimisation.
There is no reliable published UK benchmark for how much small businesses should spend as a share of revenue, and rules of thumb vary; use goals and unit economics rather than a fixed percentage. For campaign planning, see how to create an advertising campaign and the media planning guide.
How to reduce your costs
- Improve landing pages and conversion rates.
- Target specific, high-intent audiences and long-tail keywords.
- Test creative regularly and drop weak ads.
- Use negative keywords and placement exclusions.
- Retarget warm audiences, who convert at lower cost.
- Avoid peak-season auctions where you can.
- Measure incrementality to avoid paying for sales that would have happened anyway.
Frequently asked questions about online advertising costs
How much should I spend on online advertising?
Work backwards from your goal, conversion rate and the maximum you can pay per customer. There is no standard percentage.
How much does Google Ads cost in the UK?
A 2026 UK report puts the average search CPC at about £1.95, with large differences by sector: from around £0.95 in retail to about £8.25 in legal services.
How much do Facebook and Instagram ads cost?
UK guides report CPCs from about £0.26 to £2.00 and CPMs from about £3 to £18, varying by audience and season.
Is LinkedIn advertising worth the cost?
It is the most expensive paid social platform, with CPCs of about £2.00-£6.25, but it can pay off for B2B where a customer is worth a lot.
How big is UK digital advertising?
£21.2 billion in the first half of 2026, up 13%, with a forecast of £45.2 billion for the year.
How can I get the best return?
Set clear goals, track conversions accurately, improve landing pages and test continuously.
Planning online advertising? Post your project on Sortlist and compare UK digital advertising agencies for free.
Sources: IAB UK, digital adspend H1 2026, Media Performance, paid social costs, Ridley Digital, Google Ads costs, Gilke Media, platform comparison, Behaviour Digital, social ad costs. Benchmarks are indicative; the budget example is hypothetical.
