Yes, LinkedIn advertising costs more per click than Google or Meta, often two to three times more. But for a B2B business, that is not the number to watch. What matters is the cost of the qualified lead at the end of the chain, and there LinkedIn often becomes the cheapest channel. So the real question for a Belgian SME is not "is it expensive?", but "do I sell to other companies, and can I hold out a few weeks before judging?".

Why a LinkedIn click costs more (and why the lead can cost less)

LinkedIn charges for access to an audience no one else assembles as cleanly: professionals identified by their job function, their industry and their company size. That precision has a price. The 2026 benchmarks place the cost per click between 5 and 8 dollars, with a cost per thousand impressions (CPM) around 30 to 39 dollars. For comparison, a click on Meta or on Google's Display Network often costs mere cents.

The paradox is what happens after the click. In B2B, a poorly targeted audience on a cheap channel generates a lot of worthless traffic: visitors who will never decide on a professional purchase. LinkedIn starts more expensive but more accurate. Result measured by the platform: a cost per lead 28 % lower than Google Ads on B2B campaigns, despite a much higher click.

Two other figures sum up the channel's value. Marketers see a conversion rate up to twice as high on LinkedIn compared to other networks, and audiences exposed to brand messages are six times more likely to convert. For an SME selling a service or product to other companies, that is far from trivial.

The targeting only LinkedIn offers

That is the real argument. No other ad platform lets you build such a precise audience from declared professional data.

Targeting by function, industry and company size

You can precisely address the "purchasing managers in construction companies of 50 to 200 people in Belgium", or the "managers of accounting firms in Wallonia". On Meta, you approach these people through rough interests; on LinkedIn, you target them by what they actually do. For a niche catalogue or a technical service, that granularity changes everything.

An audience that decides

LinkedIn counts 1.3 billion members in 2026, of which more than 407 million in the Europe, Middle East and Africa region. Above all, four members in five weigh on business decisions, and that audience shows buying power twice the web average. You are not paying to reach "people", you are paying to reach people who sign purchase orders. That is also why 87 % of B2B marketers use the platform and 40 % rate it their most effective channel for quality leads.

LinkedIn, Meta or Google: which one for your SME?

There is no universal winner, there is a channel suited to your model. The rule is simple: the more your customer is a company and the higher your average order, the more LinkedIn is justified.

LinkedIn has the edge when you sell to other companies, when your sales cycle is long, and when a single contract is worth several thousand euros. The expensive click is absorbed by the customer's value. Conversely, if you sell to the general public, a low-margin product or an impulse purchase, advertising on Facebook and Instagram remains unbeatable on cost. We cover that ground in our article on advertising on Facebook and Instagram for a Belgian SME.

Google Ads, for its part, captures immediate intent: someone is already searching for your service. LinkedIn creates demand among people who were not yet looking for you. Many B2B SMEs combine the two, and the question of which euro to invest first deserves its own reflection, which we raised in what budget to plan for your Google Ads campaigns. Well managed, a digital advertising strategy makes these channels work together rather than against each other.

The formats that pay off on a small budget

Not all LinkedIn ads cost the same, and some are far more forgiving for a small business.

• Lead Gen forms: the user fills in a pre-filled form without leaving LinkedIn. They show an average conversion rate of about 13 %, two to three times a classic landing page. The most cost-effective format for collecting contacts.

• Thought Leader Ads: they promote a post published from a person's profile (the manager, for example). Their median cost per click sits around 2 dollars, versus more than 13 dollars for a classic image ad. A very favourable cost/credibility ratio.

• Single-image Sponsored Content: the entry format, visible in the feed. Effective for awareness, more expensive per lead than the previous two.

• Carousels and documents: well suited to explaining a technical offer in several parts, with higher engagement than a single image.

What to plan, concretely, for a Belgian SME

LinkedIn imposes a minimum daily budget per campaign, which rules out tests of a few euros. An honest test requires holding out at least four to six weeks with a monthly budget that lets through enough clicks to judge, otherwise you will only have statistical noise.

On the results side, stay clear-eyed: the cross-industry cost per lead sits around 94 dollars in 2026, up from 87 dollars in 2025. In technical or financial sectors, it climbs higher. That seems high until you compare it to the value of a B2B customer over their whole lifetime. If a customer brings you 8,000 euros over three years, a lead at 90 euros of which one in five converts remains an excellent deal. The maths no longer holds if your average order is low: in that case, LinkedIn is probably not your channel.

Frequently asked questions

What minimum budget to test LinkedIn Ads seriously?

Plan a monthly budget that lets you gather several dozen clicks per week on a well-targeted audience, kept up for four to six weeks. Below that, you do not collect enough data to decide. One well-funded segment beats three starved campaigns.

LinkedIn Ads, is it relevant given the size of the Belgian market?

Yes, provided you target correctly. The Belgian audience is smaller than in the United States, but it is dense with decision-makers, and targeting by language (French, Dutch) lets you address each region cleanly. A narrow but precise audience beats a broad and vague one.

Do you need an active LinkedIn page before launching ads?

Strongly advised. Your ads point to your page, and a complete page gets about 30 % more views. A prospect who clicks and lands on an empty or abandoned page becomes wary. Fill in the description, add the logo and publish a minimum before paying for visibility.

How long before you see results?

The first clicks come the same day, but a reliable judgement takes four to six weeks. LinkedIn needs to deliver enough to optimise, and you need distance to tell a signal from chance. Cutting a campaign after five days is the most common mistake.

Priority action plan

1. Check your model: do you sell to companies, with an order that justifies an expensive click? If not, steer the budget to another channel first.

2. Clean up your LinkedIn page: complete description, logo, cover image and a few recent posts, before spending a euro on advertising.

3. Build a single precise audience: one function, one industry, one company size, one language region. Resist the urge to target broadly.

4. Launch a Lead Gen form with a clear offer (a guide, an audit, a meeting), the most cost-effective format to start.

5. Hold out four to six weeks, measure the real cost per lead and its conversion into customers, then decide to increase, adjust or stop based on figures, not on an impression.

LinkedIn advertising is not a channel for everyone, and that is precisely what makes it powerful for the right businesses. If you sell to other companies a service or product with real value, it is one of the few places where you can speak directly to the people who decide, with no middleman and no guessing. The click is expensive; the customer, often, is not.

Selling in B2B and wondering whether LinkedIn deserves a place in your mix? Let's talk about your digital advertising strategy and figure out together where to place each euro.