Local agency or remote studio for an accounting and tax firm website in Brussels: how to choose (2026)

The verdict in three sentences

For an accounting and tax firm in Brussels, a local agency is justified if you want a trilingual French, Dutch and English site steered through meetings at your offices, with a team photo shoot. If you need a clear site that presents your services by client type and filters inquiries, a remote studio delivers it for 2 700, 4 500 or 8 200 EUR, in 3 to 4 weeks, with native French or English copywriting. Decide on three points: who supplies the Dutch version, who holds the domain and code, and how the site respects ITAA professional rules.

Which pages win new engagements in Brussels?

A Brussels firm's clientele is highly segmented. A self-employed professional starting out in Ixelles wants to know whether you handle quarterly VAT and social status. An SME in Anderlecht looks for bookkeeping, tax returns and filing of annual accounts with the National Bank. An EU official or an expat in the Schuman area wonders whether a Belgian return is needed and how foreign income is treated. Each one should find their page in two clicks.

The pages that convert: one page per client profile (self-employed, SMEs, expats and international civil servants, non-profits), one page per service (bookkeeping, tax, start-up advice, payroll through a partner), a team page with exact professional titles, a fees or billing page, and a form asking for legal form, approximate turnover and preferred language.

These ranges are a 2026 ballpark, based on public price pages of Belgian agencies, minimum project sizes listed on Clutch.co profiles of Brussels agencies and rates published on Malt and Upwork.

What does each tier include and what is the total budget?

Every tier includes a project manager reachable in your time zone, native French or English copywriting, delivery in 3 to 4 weeks and 3 months of support after launch. Maintenance beyond that is quoted on request. Payment by bank transfer: 50 % at kickoff, 50 % at delivery. For details, see the international website offer. As a real reference in professional services, Kolonell built the bilingual French and English site of TR Signing Group, a notary and apostille service in New Jersey, with per-file quote requests and an appointment calendar.

When is a Brussels agency the better choice?

If the Dutch copy must be written with the same care as the French, if you want a positioning workshop with the partners at your Uccle or Woluwe offices, or if a team photo shoot is part of the project, a local agency fits better: Kolonell does no on-site meetings and no photo or video shoots. It is also the better option if the site must connect from day one to your accounting software and a document upload portal, with on-site technical support.

Which rules govern an accounting firm's website in Belgium?

The GDPR and the Belgian law of 30 July 2018 apply to forms, under the supervision of the Data Protection Authority; a form collecting tax information should state its purpose and retention period, and never invite clients to send documents by plain email. Non-essential cookies require prior consent. Accountants and tax advisers fall under the ITAA, whose professional rules govern advertising: accurate information, no disparaging comparisons, professional titles used correctly. The Code of Economic Law also requires certain mentions, such as the company number. For accessibility, aim for WCAG 2.1 AA. This is not legal advice.

Which questions should you ask before choosing?

• Who writes the tax pages and who reviews them technically at the firm?
• How is the Dutch version integrated and kept up to date?
• Are the domain, hosting and code in our name?
• Where is form data stored, and for how long?
• Can we edit a fees page or a tax news item ourselves?
• What does maintenance cost after the support period?

For an estimate based on your current site, request a free quote.

Mini case study

Illustrative example. Sophie V., partner at an 8-person accounting firm in Etterbeek, receives a local quote of 24 000 EUR for a trilingual site over 10 weeks. She picks Kolonell Premium at 8 200 EUR for French and English, and hires a translator for the Dutch version at 2 000 EUR: 10 200 EUR in total, a 13 800 EUR gap. With an average annual engagement of 2 400 EUR per expat client (hypothesis), 5 new engagements from the expat page cover the site within a year.

FAQ

Does a Brussels site have to be in Dutch?

It is not a general obligation for a private site, but part of the Brussels clientele expects it. Budget roughly 1 500 to 2 500 EUR of translation for 12 to 15 pages.

Does the time difference complicate the project?

Hardly: the team is 1 hour behind in winter and 2 hours in summer. A 10 am meeting in Brussels falls at 9 or 8 am in Dakar.

Is the document upload portal included in Premium at 8 200 EUR?

No, it is quoted on request. Premium covers the complete bilingual public site and its forms.

Can we display our fees?

Yes, if the information is accurate and consistent with ITAA professional rules. Many firms show a starting package, for example from 150 EUR a month for a self-employed client.

How long until go-live?

Allow 2 weeks to gather copy and photos, then 3 to 4 weeks of build, about 6 weeks in total.

Let's scope your project. One page per client profile, forms that qualify inquiries and a bilingual version, on Premium at 8 200 EUR, delivered in 3 to 4 weeks. Request your free quote or see the international offer.