The verdict in three sentences
An 8-person accounting firm in London replaced its static brochure site with a rebuild plus a secure client portal for EUR 38,000. Within a year it saved 9 hours per week, cut chase-ups by 35% and signed 18 new clients. Payback was reached in 11 months, before the peak of tax season.
The context: a firm losing time on admin
Before the rebuild, the firm ran on email and paper. Clients sent documents in bulk, staff chased manually, and the site produced no qualified leads. Management set three measurable goals: cut admin time, make document collection reliable and turn the site into an acquisition channel.
| Metric | Before (2025) | After (2026) | Change |
|---|---|---|---|
| Admin time on document collection | 14 h/week | 5 h/week | -9 h |
| Client chase-ups per month | 120 | 78 | -35% |
| Average time to collect documents | 12 days | 4 days | -67% |
| Qualified leads via site / month | 2 | 9 | +350% |
| New clients signed / year | 6 | 24 | +18 clients |
| Client satisfaction score (out of 5) | 3.6 | 4.5 | +0.9 |
The investment and gains in detail
The EUR 38,000 budget covered the website rebuild, the client portal (document upload, secure messaging, deadline tracking) and integration with the accounting production tool. Here is the breakdown and the annual value of the gains.
| Item | 2026 amount / value |
|---|---|
| Website rebuild + local SEO London | EUR 12,000 |
| Secure client portal (upload, messaging) | EUR 18,000 |
| Production tool integration | EUR 5,000 |
| Team training + support | EUR 3,000 |
| Time saved valued (9 h x EUR 45 x 45 wk) | EUR 18,225/yr |
| Margin on 18 new clients (EUR 2,100 avg) | EUR 37,800/yr |
| Lower chase-up cost | EUR 6,500/yr |
Annual value created (about EUR 62,500) against the EUR 38,000 investment gives payback in 11 months (2026 order-of-magnitude estimate).
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Mini case study
Sophie, managing partner of the London firm, billed her staff at a loaded cost of EUR 45/h. Before, 3 people each spent 4 to 5 hours per week chasing and filing documents. By automating collection through the portal, she recovers 9 hours per week across the team, or 405 hours per year. Valued at EUR 45, that is EUR 18,225 of productive capacity freed up, which she redeployed onto advisory work billed at EUR 90/h. That reallocation alone generates a margin gap larger than the platform's amortised annual cost.
FAQ
How much does a client portal for an accounting firm cost in 2026? Expect between EUR 15,000 and EUR 40,000 depending on features (document upload, e-signature, deadline tracking, production-tool integration). The firm in this study invested EUR 38,000 all-in.
How fast is payback? Here, 11 months. It depends mostly on hours freed and new clients won: above 15 new files per year, break-even is usually cleared within 12 months.
Does the portal replace the accounting production tool? No, it integrates with it. The portal handles the client relationship (collection, messaging, deadlines) and feeds the production tool without replacing it.
Do staff and clients need training? Yes, but quickly: EUR 3,000 of training was enough here. Client adoption tops 80% within a quarter when uploading documents is easier than email.
Is this kind of project eligible for support? Depending on regional schemes and firm status, part may be funded. Check case by case; do not base the budget on that assumption.
Let's scope your project. Firm rebuild, secure client portal or integration with your production tool: share your scope, an indicative budget (EUR 15,000 to 40,000) and your target timeline. 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.
