The verdict in three sentences
A secure client portal for a law firm costs between 20,000 and 48,000 EUR in 2026, depending on the security tier chosen. Privilege demands encryption, MFA authentication, full audit logging and often a digital vault. This is not a brochure site: it is a trust asset that protects the firm as much as the client.
Security tiers and their cost
Security scales in tiers. Here are the three common 2026 levels and what they cover.
| Tier | 2026 range (EUR) | What's included |
|---|---|---|
| Essential | 20,000 - 28,000 | TLS + at-rest encryption, MFA, roles, basic logging |
| Hardened | 28,000 - 38,000 | + digital vault, detailed access log, alerts |
| High confidentiality | 38,000 - 48,000 | + end-to-end encryption, matter isolation, external audit |
Cost lines of a law firm portal
The budget splits across security, experience and integration with your practice management software.
| Line item | 2026 range (EUR) | Note |
|---|---|---|
| Discovery & UX | 2,500 - 5,000 | Client journey, privacy by design |
| MFA & SSO | 3,000 - 6,000 | 2FA, role management |
| Encryption & vault | 4,000 - 9,000 | At rest, in transit, client key |
| Logging & audit | 2,500 - 5,500 | Access traceability |
| File & invoice sharing | 4,000 - 8,000 | Per-client isolated spaces |
| Practice software integration | 3,000 - 7,000 | Case, billing API |
| Security QA & go-live | 3,000 - 6,000 | Penetration test, GDPR |
| Total | 20,000 - 48,000 | By tier |
Mini case study
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David, partner at a 6-lawyer firm in New York, exchanged sensitive files by email and uncontrolled transfers. After a near-miss incident, he invested 36,000 EUR in a hardened-tier portal. The firm eliminated 100% of file sharing by email, cut 6 hours a week spent finding and resending documents (about 280 h/year at 60 EUR/hour loaded, some 16,800 EUR), and above all secured privilege. Payback in just over two years, before insurance and reputation value.
FAQ
Is end-to-end encryption essential? Not always. For most firms, at-rest and in-transit encryption with MFA is enough. End-to-end (20 to 30% more budget) is justified for ultra-sensitive or criminal matters.
Does the portal guarantee privilege? It contributes strongly through isolation, logging and access control, but privilege remains an ethical duty. The portal provides the technical proof and traceability.
Do we need a penetration test? Yes, strongly recommended before launch. Budget 3,000 to 7,000 EUR for a targeted pen test on the portal and its access.
How long to deliver? Expect 11 to 17 weeks in 2026. The chosen security tier and any external audit extend the schedule by 2 to 4 weeks.
Can the portal connect to our practice software? Yes if the vendor exposes an API (case, billing, calendar). Budget 3,000 to 7,000 EUR.
Let's scope your project. Tell us your number of lawyers, your practice software and your target confidentiality tier: we price a secure portal between 20,000 and 48,000 EUR. 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.
