Accounting and tax firm website in Brussels: local agency prices vs Kolonell (2026)

The verdict in three sentences

In Brussels, a website for an accounting and tax firm built by a local agency costs, as a 2026 ballpark, between 6 000 and 30 000+ EUR excluding VAT, while a freelancer usually asks 2 500 to 8 000 EUR. Kolonell builds this kind of site for 2 700, 4 500 or 8 200 EUR, with native English or French copywriting, a bilingual FR/EN site from the Premium plan and a project manager reachable in your time zone. To decide, compare the three-year total cost, how Dutch is handled, and how well the site produces qualified fee proposal requests.

What does a Brussels agency charge for an accounting firm website?

These ranges are prudent ballpark figures, not official rates. They draw on rate cards published by Belgian web agencies, the minimum project sizes listed on Clutch.co profiles of Brussels agencies, and rates visible on freelance platforms (Malt, Upwork). Brussels agencies commonly show hourly rates of 75 to 130 EUR excluding VAT. Scope makes the difference: number of languages, service pages per client type, client area, calculators.

A Brussels agency often handles all three languages end to end and can meet you at the office. If your clients are mostly French-speaking and international, a fixed-price FR/EN site covers the essentials, with Dutch added through your own translator.

What does each Kolonell plan cover for an accounting firm?

Quoted on request: a client portal for exchanging accounting documents, an interactive fee calculator, or an integration with your practice software. All plans are detailed on our international website offer.

Three-year cost and quote comparison grid

Before signing, ask every provider: are texts written or only uploaded? Is Dutch priced? Is maintenance mandatory, at what price? Can you publish tax news yourself? Red flags: a deposit above 50 %, a proprietary builder, admin access kept by the agency.

What an accounting firm's site needs in Brussels

Your prospects are self-employed professionals, SME owners, non-profits and many expatriates linked to the EU institutions and international companies. They want to understand in a minute what you do, for whom, in which language, and how to get a proposal.

• Professional framework: accountants and tax advisers in Belgium fall under the ITAA, whose professional conduct rules also cover communication. The firm checks the titles and statements displayed; Kolonell writes no tax advice.
• Disclaimer: tax news articles stay informative and point to a consultation, with no promised tax savings.
• Languages: French and English written natively by Kolonell; Dutch, often expected in Brussels, is supplied by you or quoted separately.
• Personal data: forms collect data covered by the GDPR, supervised in Belgium by the Data Protection Authority. Clear privacy notice, limited collection, no accounting documents sent through a plain form. This is not legal advice.

The team works on GMT, one to two hours from Brussels depending on the season: Google Meet calls happen during your working day, with a written update every week.

Mini case study

Illustrative example: James, a British partner in a twelve-person accounting firm in Ixelles serving expatriates, receives a local quote of 18 000 EUR excluding VAT for a trilingual site, with 175 EUR a month of maintenance. Over three years: 18 000 + (175 × 36) = 24 300 EUR. With Kolonell Premium at 8 200 EUR (FR/EN, 6 months of support), a Dutch translation from the firm's usual translator estimated at 1 200 EUR, and the same 175 EUR a month assumption over 30 months (Kolonell maintenance is quoted on request): 8 200 + 1 200 + 5 250 = 14 650 EUR. The gap of about 9 650 EUR funds several months of tax news content. Price your project on the free quote page.

FAQ

Why such a gap with a Brussels agency?

Local agencies often bill 75 to 130 EUR an hour excluding VAT and handle all three languages themselves. Kolonell works at a fixed price, 8 200 EUR for bilingual Premium, with a remote team.

Can you write the site in Dutch?

No, Kolonell writes natively in French and English. Dutch is supplied by your translator or quoted separately, and we fit it into the site structure.

Can the site include a client area for accounting documents?

Yes, as a custom application quoted on request. The website itself is delivered in 3 to 4 weeks, or 4 to 6 weeks on Premium.

How is the project paid?

By bank transfer or Wise, 50 % at the start and 50 % at delivery. The domain is registered in the firm's name and all access is handed over.

Can we publish our own tax news?

Yes. From Growth at 4 500 EUR the blog is included, and an article takes about ten minutes to publish from the back office.

Let's scope your project. A bilingual Premium site for your Brussels firm, engagement pages and a structured fee proposal request included, for 8 200 EUR and live in 4 to 6 weeks. Request your free quote or see the international offer.