The verdict in three sentences
An audit and assurance firm website costs between EUR 10,000 and 20,000 excl. VAT in 2026 for a 35-person firm that wants to move beyond word of mouth. What converts a mid-market finance director are precise service pages (statutory audit, due diligence, IFRS), anonymised case studies and proof of independence, not a generic list of services. With an 8 to 10-week timeline, a signed mandate costs on average EUR 1,500 to 4,000 of marketing for EUR 20,000 to 60,000 of annual fees, on engagements that typically run for several years.
The budget for an audit firm website in 2026
An audit firm sells trust and technical competence. The website must demonstrate both without breaching the profession's ethical rules on communication.
| Item | 2026 range (excl. VAT) | Content |
|---|---|---|
| Content strategy and sitemap | EUR 1,500 - 2,500 | Targets (mid-market, family groups, private equity), needs-based journeys |
| Design and build | EUR 3,000 - 6,000 | Understated brand, accessibility, polished mobile version |
| Service pages (statutory audit, due diligence, IFRS, agreed-upon procedures, ESG) | EUR 2,000 - 4,000 | Methodology, deliverables, timelines, sectors |
| Anonymised case studies (4 to 8) | EUR 1,200 - 2,500 | Context, engagement, outcome, no client name |
| Careers and auditor recruitment page | EUR 1,000 - 2,500 | Career path, progression grid, online application |
| Partner and team pages | EUR 800 - 1,500 | Background, qualifications, publications |
| SEO, performance and launch | EUR 500 - 1,000 | Structured data, Search Console, conversion tracking |
| Total | EUR 10,000 - 20,000 | 8 to 10-week timeline |
The careers page deserves as much attention as the commercial pages. Hiring junior and senior auditors holds back growth at most firms, and a well-built page reduces reliance on recruitment agencies, which charge 15 to 25% of annual gross salary.
The content that wins a mandate
A mid-market CFO changing auditors, or preparing an acquisition, compares 3 to 5 firms. They look for sector specialisation, a method, a stable team and a fee range.
| Content | Effect on the prospect | Indicative production cost |
|---|---|---|
| Due diligence page with timelines (3 to 6 weeks) | Reassures a fund or a buyer in a hurry | EUR 400 - 800 |
| IFRS page with first-time adoption cases | Targets growing companies or IPO candidates | EUR 400 - 800 |
| Anonymised case studies by sector | Proof of experience without breaching confidentiality | EUR 200 - 400 per case |
| Technical articles (reforms, standards, e-invoicing) | Qualified CFO traffic, 2 to 4 a month | EUR 250 - 500 per article |
| Partner profiles with specialities | Humanises the firm, builds trust | Included in the site |
| Request for proposal form | Captures size, sector, mandate deadline | Included in the site |
Professional confidentiality prevents naming a client without consent. The anonymised case study (family-owned industrial group, EUR 180M revenue, first IFRS consolidation) is the right answer: it proves experience without exposing anyone.
The cost of acquiring a mandate
| Channel | 2026 marketing cost per signed mandate | Time to signature | Typical annual fees |
|---|---|---|---|
| Word of mouth and partner network | Low but not controllable | 3 - 12 months | EUR 20,000 - 60,000 |
| Website + SEO on service queries | EUR 1,500 - 3,000 | 2 - 6 months | EUR 20,000 - 60,000 |
| Website + LinkedIn (partner content) | EUR 2,000 - 4,000 | 3 - 9 months | EUR 25,000 - 70,000 |
| Google Ads on statutory auditor queries | EUR 2,500 - 5,000 | 1 - 4 months | EUR 15,000 - 40,000 |
| Trade shows and professional events | EUR 5,000 - 12,000 | 6 - 12 months | Variable |
These amounts are 2026 estimates. On a 6-year mandate at EUR 30,000 a year, an acquisition cost of EUR 3,000 is less than 2% of cumulative fees.
Mini case study
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Laurent, partner at a 35-person audit firm in Paris with a London desk, currently signs 4 new mandates a year, all from his network. He invests EUR 16,000 excl. VAT in a website and EUR 9,000 a year in content and SEO. Target: 3 extra mandates a year at EUR 30,000 in fees, i.e. EUR 90,000 of additional revenue in year one and EUR 540,000 over a 6-year term. Marketing cost per mandate comes out at about EUR 3,000 excluding the site, within the target range, and the site pays for itself with a single signed mandate.
FAQ
Can an audit firm advertise online?
Yes, communication is allowed within professional ethics: accurate information, no disparaging comparisons, respect for confidentiality. Case studies must therefore be anonymised, as are 100% of the examples in this article.
Should fees be displayed on the website?
Not fixed prices, but an indicative range per engagement type helps prospects. For example, financial due diligence for an SME often falls between EUR 15,000 and 40,000 excl. VAT depending on scope.
How many articles should we publish to be visible?
Two to four technical articles a month for 6 months is often enough to rank on specialised queries. Allow EUR 250 to 500 per article written or reviewed by a partner.
Is a careers page really worth it?
Yes, each hire made without an external recruiter saves 15 to 25% of an annual salary, i.e. EUR 6,000 to 12,000 for a senior auditor. A well-built careers page costs EUR 1,000 to 2,500.
What timeline should we plan for launch?
Allow 8 to 10 weeks, including 2 to 3 for writing service pages with the partners. Partner availability to approve content is often the limiting factor.
Let's scope your project. Share your priority services, your targets (mid-market companies, funds, family groups) and your hiring needs: we will price the website and the content plan with an 8 to 10-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.
