Why social media marketing matters for accounting firms

Your competitors are already posting

Most accounting firms we speak with know they should be on social media. The problem isn't awareness. It's time. According to Wolters Kluwer, 58% of Belgian accounting firms name workload reduction as their top priority. Social media keeps sliding.

But while you're putting it off, other firms aren't. Godderis Accountancy in Roeselare, a 20-person firm, posts steady weekly content that blends tax insights with team updates. Acs Accountants, with 10 offices across Kempen and Flemish Brabant, manages a structured multi-channel presence from a single dashboard. And Carbofisc in Oostkamp has been building their social media presence consistently since 2021, growing their local following year over year.

These aren't large firms with marketing departments. They're teams like yours who decided that showing up mattered.

Where your next clients are actually looking

The referral still matters. But what happens after someone gets your name? They look you up.

There are 5.86 million LinkedIn users in Belgium as of early 2025: 48.4% of the entire population. In the Netherlands, that number hits 13 million: 74% of the population. Your clients, your prospects, and the entrepreneurs who might need a new accountant next quarter are already on the platform.

And when they're evaluating a firm, LinkedIn is one of the first places they check. 80% of all B2B social media leads come from LinkedIn, and its visitor-to-lead conversion rate is nearly three times higher than Facebook or X.

So the question isn't whether your future clients are on social media. They are. The question is whether they can find you there.

The talent problem social media helps solve

Here's the angle most people miss: social media isn't just for winning clients. It's for attracting people to your firm.

72% of Belgian employers report difficulty filling vacant positions, with financial services among the hardest-hit sectors at 80%. In the Netherlands, nearly 60% of accounting firms admit they can't fill roles. And globally, 94% of accounting firm leaders say talent challenges will limit their growth.

Roughly 30% of dossier manager vacancies at Belgian accounting firms go unfilled.

Candidates in their twenties and thirties, the exact profiles most firms are competing for, check your LinkedIn before they apply. If your page hasn't been updated in three months, they draw conclusions. If a competing firm's page shows team events, career stories, and a clear culture, they apply there instead.

As Alain Carels from Carbofisc puts it: "Social media is mostly used to gain more of a fanbase and to let potential job applicants know how Carbofisc is."

What "social media" actually means for an accounting firm

Social media is more than dancing on TikTok. For most accounting firms in Belgium and the Netherlands, social media means LinkedIn. That's it.

It means posting a mix of:

• Tax insights and regulatory updates that show your expertise. A quick explanation of a new fiscal ruling takes 20 minutes to write and positions you as the firm that stays on top of things.
• Team updates and culture content that make your firm human. A photo from a team event, a welcome post for a new colleague, a short behind-the-scenes look at your office.
• Thought leadership from partners that builds trust with prospective clients. Employee-shared content gets twice the engagement of brand page posts on LinkedIn. When a partner shares their perspective, it reaches further than any company post.

You don't need five platforms. You don't need a content calendar that would make a marketing agency blush. You need one platform, a steady rhythm, and content that reflects who you actually are.

The compound effect of showing up

Social media doesn't deliver leads in week one. It compounds. And the data on this is clearer than you might expect.

We analysed 43,738 LinkedIn posts across 488 company pages over 12 months. The single biggest factor separating high-performing pages from low-performing ones wasn't content quality, posting time, or follower count. It was consistency.

Pages that post every week, without gaps, massively outperform those that don't. Even if the inconsistent ones publish more total posts. The jump from posting "some weeks" to "most weeks" alone triples yearly impressions and more than doubles engagement per post. And pages that posted twice a week saw 60% more yearly visibility and 63% more follower growth than once-a-week pages, with only a 5% dip in per-post performance.

The most striking finding: pages that posted up to 34% more content in bursts still performed up to 9x worse on engagement than pages with steady weekly consistency and fewer total posts.

Consistency beats volume. That's the takeaway. And it's good news, because it means one post per week, every week, beats five posts one month followed by silence.

Start with one person, one platform, one rhythm

The firms that make social media work aren't the ones who hired a marketing team. They're the ones who started small and stayed consistent.

A few practical steps that work:

• Pick one person who's willing to own the rhythm. Often that's a partner, a senior associate, or a marketing-minded team member.
• Commit to one post per week on LinkedIn. That's the minimum viable presence. Alternate between a tax insight, a team update, and a thought piece from a partner.
• Plan two weeks ahead. Batch your content so you're not scrambling every Monday morning.

Carbofisc started with a social media makeover at a conference in 2021 and built from there. Godderis Accountancy replaced guesswork with steady weekly posts and saw reach, engagement, and even recruitment improve. None of them had it figured out on day one.

The firms that are winning the visibility game in Belgian and Dutch accounting right now aren't louder. They're just more present.

That's something any firm can do.