The verdict in three sentences
A law firm lives on two non-negotiable requirements: professional privilege and fine-grained time billing. Vertical market solutions (50 to 150 EUR/user/month) cover the generic but impose their conflict models, their document management and often hosting outside the EU. Custom development between 40,000 and 85,000 EUR, hosted in the European Union, secures compliance and recovers hours that go unbilled today.
Vertical or custom: where the line falls
The deciding factor isn't the monthly price but control over confidentiality and billing precision. A lawyer who forgets to log 20 minutes a day loses, over 220 days, more than 70 billable hours a year.
| Criterion | Vertical solution | Custom |
|---|---|---|
| Cost | 50 to 150 EUR/user/month | 40,000 to 85,000 EUR once |
| Annual cost (12 lawyers) | 7,200 to 21,600 EUR | Maintenance 7,000 to 13,000 EUR |
| Hosting | Often outside EU | EU of your choice, GDPR-compliant |
| Conflict management | Standard | Rules specific to the firm |
| Time capture | Generic | Custom timers and templates |
| Professional privilege | Limited settings | Fine partitioning per case |
The modules of custom legal software
Value concentrates on case management, time tracking, billing and secure document management. GDPR compliance and privilege translate into encryption, audit logging and granular access control.
| Module | Content | 2026 range (EUR) |
|---|---|---|
| Case management + conflicts | Records, parties, deadlines | 10,000 to 20,000 |
| Time tracking | Timers, mobile capture | 8,000 to 16,000 |
| Billing + fees | Fixed, hourly, retainers | 8,000 to 18,000 |
| Secure document management + rights | Encryption, audit logging | 8,000 to 16,000 |
| Confidential client portal | Secure document sharing | 6,000 to 15,000 |
Allow a 12 to 18 week timeline for a production base, with EU hosting and a compliant access log.
Mini case study
Me Renaud is managing partner of a 12-lawyer firm in Lyon. Each lawyer loses on average 20 minutes of billable time a day for lack of rigorous capture. Over 220 days and an average hourly rate of 180 EUR, that's 12 lawyers × 73 hours × 180 EUR, close to 157,000 EUR in lost annual revenue. Software with timers and mobile capture realistically recovers 60% of that time, i.e. 94,000 EUR a year. The custom investment of 65,000 EUR pays back in under a year.
FAQ
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Can law firm software be hosted in France or the EU?
Yes, and it's strongly recommended. Custom development lets you pick a GDPR-compliant EU host, with access logging and encryption at rest.
How much does custom legal software cost in 2026?
Between 40,000 and 85,000 EUR for a full base (cases, time, billing, document management). A single module, such as time tracking, starts around 12,000 EUR.
How is professional privilege guaranteed technically?
Through fine per-case access partitioning, data encryption and full access logging, exportable in case of an audit.
Does the software handle conflicts of interest?
Yes, with rules specific to the firm: detection when opening a case based on parties and adversaries already recorded.
How long to go live?
Between 12 and 18 weeks for a usable base, with intermediate deliveries and a migration phase for existing cases.
Let's scope your project. Tell us the number of lawyers, your hosting requirements and the priority module (cases, time or billing) for an indicative budget and 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.
