Law firm software for time billing and conflict checks: custom or packaged

The verdict in three sentences

A 14-lawyer firm in London or New York that leaks 8 to 12% of its billable hours through missing time entries gives away the equivalent of a senior associate's annual fees every year. Custom software that combines timekeeping, conflict checks and billing makes sense once packaged tools, at roughly £50 to £130 or $60 to $150 per user per month, no longer fit your fee arrangements or your history of 9,000 matters. Plan for 3 to 5 months and the Kolonell custom application grid, from 2,500,000 to 15,000,000+ FCFA (3,810 to 22,870+ EUR) depending on complexity.

Where a mid-sized firm loses its billable hours

In most mid-sized firms, time is still recorded on Friday afternoon, from memory, in a spreadsheet or a barely used billing module. Five-minute calls, emails typed on a phone between hearings, a partner's review of an associate's draft: all of it vanishes.

Take a 14-lawyer firm in London with a target of 1,200 billable hours per lawyer per year and an average blended rate of £350. The potential is 16,800 hours, or £5.88 million. An 8% leak is 1,344 hours, or £470,400. At 12%, it reaches 2,016 hours and £705,600. The same firm in New York at a $450 blended rate loses between $604,800 and $907,200.

A tool that captures time as it happens changes the picture: a timer started from the matter page, a suggested time entry after each call or sent email, a ten-second mobile entry when leaving court. Firms that roll out real-time capture typically recover 4 to 6 points of leakage within 12 months.

Conflict checks across 9,000 matters

The SRA Code of Conduct in England and Wales, and Rules 1.7 and 1.10 of the New York Rules of Professional Conduct, both require firms to identify conflicts before taking on a client. With 9,000 matters on file, manual searches in a spreadsheet or in partners' memories quickly break down: namesakes, subsidiaries, shared directors, opposing parties entered under a different spelling.

A serious conflict module indexes clients, opposing parties, officers and related entities, then runs a phonetic and fuzzy search at every matter intake. A partner approves or rejects the result, and the decision is logged on the matter.

At 500 new matters a year, going from 25 minutes to 3 minutes frees about 180 hours of support staff or associate time, before counting the regulatory risk avoided.

Packaged or custom: compare over three years

Practice management platforms for law firms cost, as a 2026 order of magnitude, £50 to £130 per user per month in the UK and $60 to $150 in the US. For 14 lawyers and 6 support staff, 20 users, that is £12,000 to £31,200 or $14,400 to $36,000 a year before add-ons. These tools suit a firm that accepts their logic. Custom becomes relevant when the firm mixes hourly, fixed and success fees by client, wants a client portal in its own brand, or must migrate a long and messy history cleanly.

The timeline fits in 3 to 5 months: 3 weeks of scoping with partners and the billing lead, 6 to 10 weeks of development in releases, 3 weeks of data migration and acceptance testing, then a go-live by practice group, corporate first and litigation next.

Mini case study

Sarah Collins, managing partner of a 14-lawyer firm in London, estimates her leakage at 10%. She chooses a complex application on the Kolonell grid with maintenance at 114 EUR a month. A realistic one-year goal: recover 5 points of leakage, so 16,800 hours x 5% = 840 hours, valued at £350, or £294,000 of additional billing. Even at the top of the project range, 22,870 EUR plus 1,368 EUR of annual maintenance, the investment is repaid in a few weeks of recovered fees. By comparison, 20 licences at £90 a month would cost £21,600 a year, without migrating the conflict history.

FAQ

How long does it take to migrate 9,000 legacy matters? Allow 2 to 3 weeks of data work, half of it spent deduplicating parties. A 9,000-row spreadsheet usually contains 5 to 15% duplicates or competing spellings.

Will lawyers actually record their time? They do when an entry takes under 10 seconds and works from a phone. Firms that add a daily 6 pm reminder and a dashboard per lawyer see capture rates above 90% within 2 to 3 months.

Where is privileged data hosted? Hosting is set in the quote, in the UK, the EU or the US, with encryption and access logs. Daily backups are kept for at least 30 days.

Can we keep our current accounting system? Yes, billing exports entries to your existing ledger in the format it expects. This connector belongs to the complex level of the grid or is priced separately in the quote.

Does the project disrupt the firm for 3 to 5 months? No, the old tool stays live until cutover, planned over a weekend. Partners are asked for only 2 to 3 one-hour workshops a month.

Let's scope your project. Timekeeping, conflict checks and billing for your firm, scoped in one workshop and delivered in 3 to 5 months. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.