The verdict in three sentences
A well-scoped website redesign for an accounting firm is not a communication expense, it is a measurable acquisition channel. With 14,000 EUR invested and 12 new engagements signed over 12 months, the firm generated a 3.4x ROI and halved its acquisition cost. Payback was reached in under 5 months thanks to a booking funnel and conversion-focused content.
Context and investment
The firm, based in Nantes, had 22 staff and an old 2019 brochure site: not responsive, no qualification form, and a visitor-to-contact conversion rate below 0.6%. The goal was clear: turn the site into a qualified-appointment machine for recurring engagements (bookkeeping, payroll, advisory).
| Item | Amount (excl. VAT) | Timeline |
|---|---|---|
| UX audit and information architecture | 1,800 EUR | Week 1 |
| Design and mockups | 3,200 EUR | Weeks 2-3 |
| Development and CMS | 5,400 EUR | Weeks 3-6 |
| SEO content and service pages | 2,600 EUR | Weeks 5-6 |
| Booking funnel and tracking | 1,000 EUR | Week 7 |
| Total | 14,000 EUR | 7 weeks |
The project shipped in 7 weeks with integrated booking (Calendly) and full analytics tracking from day one.
Before / after KPIs
Measurement compared the 6 months before the redesign with the 6 months after, at constant marketing budget.
| Metric | Before | After 6 months | Change |
|---|---|---|---|
| Visitors / month | 1,150 | 1,980 | +72% |
| Contact conversion rate | 0.6% | 1.9% | x3.2 |
| Contact requests / month | 7 | 13 | +85% |
| Acquisition cost (CAC) | 420 EUR | 205 EUR | -51% |
| Qualified appointments / month | 3 | 8 | +166% |
| Engagements signed (12 months) | 4 | 16 | +12 net |
The main gain comes not just from traffic but from qualification: the form filters engagement type and prospect revenue, cutting wasted sales time.
Mini case study
Marc, managing partner of the Nantes firm, values an average recurring engagement at 3,800 EUR / year in fees, with a 4-year client lifespan, i.e. 15,200 EUR in lifetime value. The 12 net additional engagements therefore represent roughly 182,000 EUR in lifetime value. Even counting only the first year (12 x 3,800 = 45,600 EUR), the 14,000 EUR investment is repaid by month 5. 12-month ROI: 45,600 / 14,000 = 3.26x on immediate revenue, and far more on lifetime value.
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FAQ
How much does a website redesign for an accounting firm cost in 2026?
Expect a ballpark of 8,000 to 20,000 EUR depending on the number of service pages, SEO content and integrations (booking, client portal). The firm in this case study sits mid-range at 14,000 EUR.
How fast do you see a return?
Here, payback was reached in under 5 months. As a conservative estimate, a firm can target a return between 4 and 9 months if the booking funnel and tracking are in place at launch.
Why did acquisition cost fall by half?
Because the same ad and SEO budget converts three times better: CAC dropped from 420 to 205 EUR. The lever isn't more traffic, it's a better conversion rate.
Do you need a blog or SEO content?
Yes. Optimized service pages (bookkeeping, payroll, company formation) drove +72% organic traffic in 6 months. That's the durable fuel that reduces reliance on paid ads.
How do you measure ROI seriously?
Define before the project: traffic, conversion rate, CAC, qualified appointments and signed engagements. Without a before/after measurement at constant budget, no figure is credible.
Let's scope your project. Accounting firm website redesign with a booking funnel, SEO content and tracking, indicative budget 10,000 to 18,000 EUR, delivery in 7 to 9 weeks. 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.
