The verdict in three sentences
For a 15-person accounting practice, a premium website rebuild costs between EUR 8,000 and EUR 18,000 excl. VAT in 2026, and the gap between three quotes almost always comes down to four items: content, calculators, online booking and local SEO. The right quote is not the cheapest one but the one that prices the route to 20 qualified enquiries a month precisely. Plan for 8 to 12 weeks and maintenance of EUR 90 to 250 a month, otherwise the site decays within eighteen months.
Reading a rebuild quote line by line
The managing partner usually receives three proposals: a freelancer, a local generalist agency and an agency specialised in regulated professions. To compare them, bring them back to the same grid.
| Item | 2026 range (EUR excl. VAT) | What drives the price |
|---|---|---|
| Audit of the current site and sitemap | 800 to 1,800 | Number of existing pages, Search Console analysis |
| Custom design (mock-ups) | 2,000 to 5,000 | Number of templates, mobile variants |
| Build and CMS | 2,500 to 6,000 | Headless CMS or WordPress, number of templates |
| Copywriting for service pages | 1,200 to 3,500 | 8 to 20 service pages, partner interviews |
| Online booking module | 1,500 | Outlook or Google calendar sync |
| Tax calculators (income tax, corporate tax, self-employed) | 2,500 to 4,000 | Number of calculators, yearly rate updates |
| Local SEO and URL migration | 600 to 1,500 | 301 redirects, Google Business Profile |
| QA, GDPR, go-live | 400 to 900 | Cookie banner, legal notices, training |
A EUR 6,500 quote that mentions neither copywriting nor redirects is not cheaper: it shifts those items onto your staff or onto lost traffic.
Three typical quotes received in 2026
| Criterion | Freelancer | Generalist agency | Specialist agency |
|---|---|---|---|
| Rebuild price | EUR 7,500 | EUR 11,900 | EUR 16,800 |
| Calculators included | None | 1 (income tax) | 3 (income, corporate, self-employed) |
| Online booking | Calendly link | Built-in module | Built-in module + reminder |
| Copywriting | Client | 8 pages | 15 pages |
| Announced timeline | 6 weeks | 10 weeks | 12 weeks |
| Monthly maintenance | EUR 90 | EUR 150 | EUR 250 |
| Total cost over 3 years | EUR 10,740 | EUR 17,300 | EUR 25,800 |
Over three years, the real gap is about EUR 15,000. The question becomes: how many extra clients does it take to absorb it?
Set a measurable goal: 20 qualified enquiries a month
A practice of this size bills on average EUR 1,800 to 4,500 per year per small business or professional client (2026 order of magnitude). With 20 qualified enquiries a month and a 15 % close rate, the site brings 3 new clients a month, or 36 a year. The levers that matter:
- pages per audience (start-ups, medical professionals, property holding companies, restaurants) rather than a generic "our services" page;
- a free calculator with the result sent by e-mail, which captures 30 to 40 % of inbound contacts;
- a short form (5 fields maximum) and a booking slot visible from the home page;
- conversion tracking in Matomo or GA4 from day one.
Mini case study
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Aoife, managing partner of a 15-person practice in Dublin's docklands, picks the specialist agency at EUR 16,800 plus EUR 250 a month. First-year cost: 16,800 + 3,000 = EUR 19,800. By month six, the site produces 18 enquiries a month and the practice signs 2.5 clients a month at EUR 2,600 average annual fees. Over twelve months at cruising speed, that is 30 clients, or EUR 78,000 of recurring revenue. Payback comes before the end of year one, even counting only half of those signatures as attributable to the site.
FAQ
How long does an accounting practice website rebuild take?
Allow 8 to 12 weeks between the scoping workshop and go-live. The longest step is content sign-off by the partners, often 3 to 4 weeks on its own.
Are tax calculators worth the money?
A calculator costs EUR 2,500 to 4,000 depending on complexity and must be updated every year after the budget, roughly EUR 300 to 600. It becomes the main lead source on most well-ranked practice websites.
Should we keep WordPress?
WordPress remains viable if the practice publishes rarely. A headless CMS costs 15 to 25 % more to build but cuts security maintenance and improves mobile load speed.
What regulatory obligations apply to an accountant's website?
The site must follow the professional body's code of ethics, state the firm's registration and comply with GDPR. Budget EUR 400 to 900 for legal review, notices and the cookie banner.
What does EUR 250 a month of maintenance cover?
Security updates, daily backups, 2 hours of monthly changes and SEO ranking tracking. At EUR 90, usually only technical updates are included.
Let's scope your project. Send us your current sitemap and your monthly enquiry target, and we will price the rebuild line by line with an 8 to 12 week schedule. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
