The verdict in three sentences
Custom software for a New York law firm costs, in 2026, between 40,000 and 95,000 USD net, delivered in 5 to 7 months, with matter management, time-tracking, fixed-fee or hourly billing and a digital vault. Versus legal SaaS at 50-150 USD/user/month, custom is justified as soon as your billing or time-capture processes fall outside the standards. The key gain: a billing rate up 8 to 18 % and fewer unpaid invoices.
Legal SaaS or custom: how to decide
Market SaaS suits standard firms. Custom becomes worthwhile as the firm grows, when billing mixes fixed fee, subscription and hourly, or when integration with accounting and document management must be native.
| Criterion | Legal SaaS 2026 | Custom 2026 |
|---|---|---|
| Entry cost | 50-150 USD/user/mo | 40,000-95,000 USD net |
| 5-year cost (12 users) | 36,000-108,000 USD | 40,000-95,000 USD + maint. |
| Billing customisation | Limited | Total |
| Accounting/court integration | Vendor-dependent | Native custom |
| Code ownership | No | Yes |
| Roadmap control | Vendor | Firm-driven |
What rigorous time-tracking changes
A firm's value leaks through unrecorded time and unbilled hours. Time-tracking embedded in the workstation, paired with semi-automatic billing, recovers a significant share of that value.
| Metric | Before dedicated tool | After (2026 order of magnitude) |
|---|---|---|
| Recorded vs actual time | 70-80 % | 90-95 % |
| Billing rate | Baseline | +8 to +18 % |
| Invoice issue delay | 15-30 days | 2-5 days |
| Bad-debt rate | Baseline | -20 to -35 % |
| Admin hours/partner/month | 20-30 h | 8-12 h |
Mini case study
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Mr. Lawrence, managing partner of a 9-lawyer firm in New York, bills 1.6 M USD/year. His partners estimate losing 12 % of billable hours to poor time capture. A time-tracking tool that recovers just 10 points of billing generates roughly 160,000 USD of additional annual revenue. Against a 75,000 USD custom build plus 9,000 USD maintenance, the return is achieved within the first year, before counting reduced bad debt.
FAQ
Does custom software handle both hourly AND fixed-fee billing? Yes, that is precisely its value. We model your rules (rates by profile, flat fees, subscriptions, retainers) without the contortions a generic SaaS imposes.
Can it integrate court systems and accounting? Yes, via connectors or APIs. We sync matters, invoices and ledger entries to avoid double entry and make tracking reliable.
Is the digital vault compliant? Yes: encryption, access traceability, regional hosting and matter-level permissions meet confidentiality and privilege requirements.
At what size does custom pay off? Generally above 8 to 10 users, or when your processes fall outside standards. Below that, SaaS at 50-150 USD/user/month is often more economical.
What does maintenance cost? Plan 10 to 15 % of development cost per year, i.e. roughly 4,000 to 14,000 USD/year depending on initial scope.
Let's scope your project. Tell us your lawyer headcount, billing models and current accounting tools for a precise estimate. 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.
