The verdict in three sentences
A credible brochure website redesign for a London accounting firm costs between EUR 8,000 and EUR 16,000 in 2026, excluding advanced options. The gap comes mainly from the agency (EUR 9,000-18,000) versus freelance (EUR 4,000-8,000) choice and from adding a client portal. Expect 5 to 9 weeks of production and EUR 700 to EUR 1,000/month in recurring costs across maintenance, local SEO and hosting.
Line-by-line breakdown
An accounting firm does not sell a product, it sells trust. The site must reassure a small business about rigour, availability and sector expertise. Here is a typical 2026 breakdown for a London firm.
| Item | 2026 range (EUR) | Note |
|---|---|---|
| Design + build | 4,500 - 9,000 | 6-10 pages, responsive, brand |
| Headless CMS (self-editing) | 2,000 - 4,000 | Blog, tax updates, guides |
| Light client portal | 3,500 | Document upload, secure messaging |
| Local SEO 6 months | 3,900 | EUR 650/month x 6 |
| EU/UK hosting | 480 - 1,080 /yr | EUR 40-90/month |
| Maintenance (retainer) | 120 - 350 /month | Updates, backups, security |
Without the portal or SEO, a firm targets EUR 6,500 to 11,000. With both, the first-year budget climbs toward EUR 13,000 to 16,000.
Agency or freelance: the real trade-off
The same brief yields very different quotes depending on who you ask. This table sums up what you actually get for your money.
| Criterion | Freelance | Agency |
|---|---|---|
| Redesign budget | EUR 4,000 - 8,000 | EUR 9,000 - 18,000 |
| Average timeline | 4 - 7 weeks | 6 - 9 weeks |
| Client portal | Rare / outsourced | Available as option |
| Structured local SEO | Variable | Defined process |
| Continuity (leave, illness) | High risk | Team = continuity |
| Guaranteed SLA support | Often absent | Contract EUR 120-350/month |
For a 3-to-8-person firm, a senior freelance is enough for a simple brochure need. As soon as a client portal or a local SEO strategy is involved, an agency secures the timeline and maintenance better.
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Mini case study
Mr Fabre, partner in a 6-person firm in central London, is redesigning a 2018 site that generates no leads. Chosen quote: EUR 9,800 (design 5,500, CMS 2,300, six-month SEO 3,900 partly spread, maintenance EUR 180/month). Goal: win 4 new small-business clients per year at EUR 1,800 in annual fees each. In year one, 5 signed clients = EUR 9,000 in recurring revenue, paying back the budget in roughly 13 months, then net recurring revenue thereafter. A client portal added in year two (+EUR 3,500) cuts document-chasing emails by 30 %.
FAQ
What is the minimum credible budget for an accounting firm? Below EUR 4,500, you get a barely differentiated template. A reassuring, locally optimised site realistically starts around EUR 6,500 all-in for the first year.
Is a client portal essential? No, but it becomes a strong commercial argument: secure upload of accounts and documents, saving staff time and justifying EUR 3,500 once you manage more than 40 active files.
How much does local SEO cost in London? Budget EUR 650/month for at least 6 months to rank on queries like accountant central London or small-business accountant, i.e. EUR 3,900 over the half-year.
What timeline should I plan for? Between 5 and 9 weeks depending on the vendor and how fast you approve content. The limiting factor is almost always sign-off on copy inside the firm.
Do I need a maintenance contract? Yes. Without it, an un-updated site becomes a security hole within months. A retainer at EUR 120-350/month covers updates, backups and fixes.
Let's scope your project. Brochure redesign, CMS and client portal for an accounting firm, indicative budget EUR 8,000-16,000, live within 6-9 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.
