Your law firm deserves software that meets 100% of your business needs—not just 80%. IT SYSTEMES custom management software for your firm, featuring automated time tracking, integrated billing, and native reporting. Available in as little as 30 days. Proprietary code, no subscription fees.

Most law firms manage their operations using multiple software programs that don’t communicate with one another. One tool for case files, another for billing, a third for time tracking, and Excel to fill in the gaps. A fragmented law firm management system results in daily manual data re-entry, inconsistent data across tools, and unusable legal reports —all of which amount to wasted time on tasks that don’t generate billable hours. The SaaS solutions on the market—Jarvis Legal, Secib, Diapaz, and Kleos—cover 80% of the industry’s common needs. The remaining 20%, the features that make a difference in your firm, are never covered.

IT SYSTEMES custom business software for law firms, with delivery in as little as 30 days. You own the code. No subscription fees. No dependence on a software vendor.

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Why Standard Law Firm Management Software Isn't Enough

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Law firm management software must address specific needs: tracking client cases, managing project phases (analysis, drafting, negotiation, litigation), coordinating between partners and associates, billing by the hour or on a flat-rate basis, and reporting by attorney, case, and legal practice area.

SaaS solutions address these needs in a generic way. That’s their model: a single product for thousands of firms. The problem is that the 20% of needs that aren’t covered are precisely those that shape the way you work: your invoice approval workflow among partners, your method for qualifying and opening a case, your process for tracking fee agreements, and the way you allocate time across the different phases of a single case.

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You've learned to work the way your software allows, not the way your job requires.

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In practice, this means maintaining Excel exports alongside the software, re-entering data between tools, and data that never aligns. And a question that comes up at every partners’ meeting: isn’t there management software for our firm that would actually do what we need?

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The Hidden Costs of SaaS Software for Law Firms

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A SaaS provider builds its product with the majority of its customers in mind. As a result, you end up paying for features you don’t use. On average, 60 to 70% of the features in SaaS software are never activated. And the features you actually need are often missing or incomplete.

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What the sales demo doesn't show

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Per-User Licenses

Costs rise with every new hire. A firm that grows from 20 to 35 employees in three years sees its software costs increase by 75% without gaining any additional features.

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Additional Modules

Charged in addition to the basic subscription: Advanced EDM, custom reporting, RPVA connection, expense report module.

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Integrations

With your existing tools (Sage, Cegid, Teams, HR): complex, expensive, and often incomplete.

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Migration if you switch tools

Between €6,000 and €30,000, depending on the publisher, not including in-house time.

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Internal time lost

On Excel workarounds—unbilled but very real, estimated at several hours per week per employee.

Over a three-year period, the total cost for 20 users often exceeds €114,000. In the end, you own nothing.

SaaS, CRM, or Custom Software: Which Type Is Right for Your Firm?

Before discussing features, we need to clarify the type of solution. Law firms have three options to choose from, and they do not all address the same need.

CRM software for lawyers manages client relationships and sales follow-up: contacts, opportunities, and follow-ups. While useful, it does not cover time-based billing or case management by project phase. It’s one piece of the puzzle, not a comprehensive management tool.

SaaS management software (Jarvis Legal, Secib, Kleos, Diapaz) combines case management, billing, and scheduling in a single monthly subscription. It covers the core functions of the profession, which is sufficient for a law firm whose organizational structure closely follows industry standards.

A custom ERP system brings everything together in a single tool tailored to your processes: case management, time tracking, billing, expense reports, and reporting—all seamlessly integrated. It’s the solution that meets 100% of your needs, including the 20% that off-the-shelf solutions overlook.

The right choice depends on the specific nature of your processes and the time frame you are considering.

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How to Automate Time Tracking in a Law Firm

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Time tracking is the lifeblood of any firm that bills by the hour. It is also the weak point of nearly all solutions on the market.

The classic scenario: A lawyer finishes his day at 8 p.m. He opens his practice management software and tries to reconstruct his 10 hours of work based on his memory and his Outlook calendar. Short phone calls are forgotten. The 20-minute research sessions between meetings fall through the cracks. Quick proofreads aren’t tracked. The result: the firm loses billable time every day, for every associate, without even realizing it.

SaaS solutions offer either manual time tracking or a timer that can be activated. In both cases, the system relies on the lawyer’s individual discipline. In the day-to-day operations of a law firm—amid unrecorded client calls, court hearings, drafting legal documents, and internal meetings—no lawyer can maintain rigorous manual time tracking. The tool must capture this time on their behalf.

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The solution developed by IT SYSTEMES a desktop plugin with real-time screen capture.

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In practice, a discreet widget is installed in the Windows notification area (system tray) on each user’s computer. At regular intervals, the plugin asks the attorney, “Which case are you currently working on?” The user selects the case and the type of activity (drafting, research, phone call, meeting, proofreading) with just two clicks. Time is tracked throughout the day with a level of detail that manual end-of-day data entry could never achieve.

This time is automatically broken down by file, by project phase, and by applicable hourly rate. When it’s time to bill, the partner in charge simply needs to approve the time entries and generate the invoice—no re-entry, no reconstruction, and no delays.

This approach exists in other sectors (consulting, auditing), but SaaS providers rarely offer it to law firms because it requires custom development tailored to each specific work environment.

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Case Study: From 30-Day Invoicing to a Full-Scale ERP System in 90 Days

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A law firm with 50 employees contacted us with a problem that was simple to describe but complex to solve: their time tracking and billing systems did not accurately reflect the firm’s actual operations.

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The situation before the project: The firm was using four software programs that were not connected to one another—one for project management, one for tracking stakeholders, one for invoicing, and Excel to fill in the gaps. Every day, data had to be manually re-entered from one tool to another. The figures did not match up. It was impossible to manage operations in real time.

The specific irritants that everyone is familiar with

Time not recorded or estimated

Lawyers would review their daily work at the end of the week, or sometimes at the end of the month. Billable hours were sometimes forgotten, underestimated, or assigned to the wrong case. In a firm that bills by the hour, every hour that isn’t logged is revenue lost.

Unrecorded customer calls

A partner spends 25 minutes on the phone with a client discussing a complex case. The call isn't recorded anywhere—neither in the case file nor in the billing records. When you multiply that by the number of employees, a significant amount of billable time vanishes every week.

Expense Reports Not Associated with Files

Travel, bailiff, translation, and document research expenses incurred on behalf of a client were entered into a separate NDF tool, unrelated to the case in question. Rebilling the client depended on the memory of a legal assistant or a separate Excel file. Expenses would slip through the cracks every month.

Unable to generate report

The managing partner had no reliable consolidated view of the business: no profitability by case, no utilization rate per employee, and no projected revenue. Each executive committee meeting required half a day of manually compiling data extracted from four different tools.

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A traditional vendor had submitted a quote for custom law firm management software with a similar scope: €388,000, with an estimated delivery time of 12 to 18 months.

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Phase 1 — Billing software with automated time tracking, delivered within 30 days

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Rather than launching an 18-month monolithic project, IT SYSTEMES starting with the most critical need: billing and time tracking.

Within 30 days, the firm received a fully functional, custom-built billing software system that included:

The real-time time-tracking desktop plugin described above is installed on each employee’s computer. No more back-end data entry at the end of the day: time is captured in real time, file by file, phase by phase.
A comprehensive structure organized by case and project phase. Each case is broken down into phases (analysis, drafting, negotiation, litigation, etc.) with assigned personnel and applicable hourly rates. Time logged via the plugin is automatically allocated to the appropriate phases.
A module for generating invoices directly. The invoice is generated based on the hours approved by the responsible partner. No more re-entering data, no more delays between tracking and billing.
Native reporting. Available from the moment the system goes live: billable hours vs. hours worked per employee, revenue per case, completion rate by phase, and profitability by legal practice area.

Immediate result: The firm saw an increase in the amount of time actually tracked and billed starting in the very first month of use. Hours that had previously gone unrecorded—such as brief phone calls, research between meetings, and proofreading—were now captured by the plugin.

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Phase 2 — Integrating Teams Calling with Expense Reports

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The trust built during Phase 1 led the firm to request two extensions to address the other two leaks that had been identified.

Integration with Microsoft Teams: AI-powered automated call summaries

Every call made or received via Microsoft Teams is now automatically transcribed and summarized using artificial intelligence. The system generates a structured summary that includes participants, topics discussed, decisions made, and next steps. This summary can be attached to the relevant file with a single click. If the call is billable, the time is automatically entered into the billing module with the correct file, phase, and hourly rate.

In practice: An employee hangs up after a 20-minute call with a client. Before, nothing happened—the call was either forgotten or jotted down on a sticky note. Now, a structured summary appears, linked to the case file, with the time automatically recorded. The lawyer can approve or adjust it with a single click.

Integration with the expense reporting tool: automatic reimbursement of out-of-pocket expenses

Expense reports (travel, legal fees, miscellaneous disbursements) are now linked directly to the client file through the firm’s existing NDF tool. Each billable expense report automatically appears in the file’s billing module, ready to be included in the next client invoice. No more separate Excel files, no more forgotten disbursements.

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Phase 3 — Transition to a comprehensive ERP system for law firms

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Building on its billing infrastructure and functional integrations, the firm decided to expand its scope to include a custom ERP system covering the entire management cycle:

Integrated CRM. Prospect tracking, communication history, and new case pipeline. Partners have a consolidated view of the firm’s business development, including fee agreements currently under negotiation.
Planning and Assignment. Assigning staff to cases, tracking team workload, and anticipating scheduling conflicts. The managing partner can see who is working on what and at what capacity, in real time.
Centralized document repository. Contract templates, legal opinions, internal memos, and key case law—indexed by case, client, and legal subject. Every document produced is linked to its context and accessible to all authorized users.
Integrated expense report module. Expense reports no longer go through an external tool: they are natively integrated into the case-billing-rebilling cycle.

Delivery of the complete ERP system: 90 days in total. Total cost: €105,000. The firm owns the full source code, with no subscription fees or royalties.

Direct savings: €283,000 compared to a competitor’s quote for the same scope of work.

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‍Why a gradual approach works better than a monolithic project

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This case illustrates a point that traditional service providers overlook: a law firm doesn't have to wait 18 months to improve its billing.

The phased approach offers three key advantages:

Immediate ROI. From the very first month, the billing software delivers measurable value. The firm doesn’t have to wait for a full-scale ERP system to be implemented to start recouping lost billable time.

Seamless user adoption. Lawyers don’t like it when all their tools are changed at once—and they’re right. A discreet plugin that asks them which case they’re working on causes minimal friction. New features are added once users have gotten used to the previous ones. Adoption comes through proof, not coercion.

A scope that evolves with use. A firm’s actual needs cannot be fully captured in an initial 80-page requirements document. Phase 1 reveals uses that the firm had not anticipated. The Teams integration, for example, was not part of the initial scope: it was the daily use of the billing software that highlighted the amount of time wasted on untracked calls. Subsequent phases take this into account.

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How IT SYSTEMES law firm management software in as little as 30 days

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30 days for an invoicing module or a CRM system. 90 days for a full-scale ERP system. In both cases, that’s 4 to 18 times faster than traditional development.

Hyperdevelopment: a method developed over two years of R&D

IT SYSTEMES standardized what is known as "hyperdevelopment." The method is based on three elements that, when combined, reduce development time by a factor of 12 to 18:

Proven architectural foundations, tested across dozens of projects: authentication, rights and role management, APIs, user interface, and document management. These components aren’t recreated for every project—they’re adapted and configured.

Code generation using artificial intelligence, supervised by a senior developer. AI accelerates code production. The senior developer ensures quality, architectural consistency, and maintainability. What used to take 4 to 9 months using traditional development methods now takes 15 to 20 days.

A continuous validation process with the client. No six-month-long period with no visibility. The client sees the software evolve every week, tests the screens, and validates the workflows. Adjustments are made during development, not after delivery.

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What you'll receive upon delivery

Depending on the project, IT SYSTEMES full ownership of the software 30 days or 90 days after the project’s completion:

Full source code: readable, modular, and free of dependencies on proprietary frameworks. Any qualified developer can pick it up and work with it.
Comprehensive technical documentation: every module is documented, and every architectural choice is justified.
Intellectual property rights: modify, host, or share the code with whomever you like. No retention clauses.
Hosting in France: native GDPR compliance, hosted in French data centers. On-premises deployment is available on your own servers for firms subject to enhanced security requirements.
No additional cost per user: whether you hire 10 or 200 people, the cost remains the same.
Support for 30 days after delivery: response within 4 hours, critical bugs fixed within 24 hours.

ROI Guarantee: If the project does not generate savings exceeding its cost within 18 months, IT SYSTEMES 15 additional days of development at no charge. Average ROI observed for completed projects: 8 months.

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What is the budget for custom law firm management software?

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IT SYSTEMES its pricing. There are three tiers based on the complexity of the project:

IT SYSTEMES Charts

Budget — three tiers based on the project's complexity

Level	Scope	Deadline	Budget
CRM / Business Module	Billing, time tracking, case management	Starting at 30 days	Starting at €30,000
Multi-module application	CRM + integrations (Teams calling, NDF, Sage/Cegid accounting)	45 to 60 days	Starting at €60,000
Full-featured ERP	CRM + Billing + Scheduling + Document Management + NDF + Reporting	90 days	Starting at €90,000

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For agencies looking to replace a tool like Salesforce or HubSpot, check out our guide on how to develop a custom CRM.

Included in every package without exception: use case analysis, data migration from your existing systems, a validated prototype prior to development, continuous testing, deployment, user training, 30 days of support, full source code, technical documentation, and intellectual property rights. No hidden fees. If the scope changes during the project, an amendment is signed before any additional development takes place.

An Alternative to SaaS Software for Law Firms: A Comparison

Are you trying to decide between SaaS software (Jarvis Legal, Secib, Diapaz, Ifleos, zLawyer...) and a custom-built solution? Here are the criteria that make the difference:

IT SYSTEMES Charts

Comparison — SaaS vs. Custom Software | IT SYSTEMES

Criterion	SaaS software	Custom Software by IT SYSTEMES
Functional coverage	80% of standard requirements	100% of your specific needs
Time Tracking	Manual entry or stopwatch	Automated desktop plugin, real-time capture
Telephone Interconnection	Limited or absent	AI-generated call report, automatically linked to the case file
Re-billing of NDFs	Manually, using an external tool	Automatic, integrated into the billing cycle
Cost over 3 years (20 users)	> €114,000 (licenses + modules + integrations)	€30,000 to €105,000 (one-time cost, no subscription)
Code ownership	Publisher's proprietary code	Complete source code transferred to the firm
Implementation period	2 to 6 months (setup + training)	30 to 90 days (development + deployment)
Publisher dependency	Total — costly migration if changed	None — you have the code

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This comparison does not mean that SaaS is always the wrong choice. For a firm of 5 attorneys with standard needs, a tool like Jarvis Legal or zLawyer is likely sufficient and quicker to deploy. A custom solution makes the most sense when your internal processes are unique, when you need deep integrations with your existing IT systems, or when the cumulative cost of SaaS licenses exceeds the cost of custom development—which generally happens when you have around 15 to 20 users.

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Frequently Asked Questions About Law Firm Management Software

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What is the best management software for a law firm?

There is no such thing as the perfect all-in-one law firm management software. SaaS solutions cover the needs common to 80% of law firms, but cannot integrate your firm’s specific business rules: your internal approval process, your client tracking method, and your approach to managing cases. Custom software developed using the hyperdevelopment method covers 100% of your needs, delivered in 30 days for a CRM and in 90 days for an ERP, with no monthly subscription fee.

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How can a law firm automate time tracking?

Traditional solutions rely on manual data entry at the end of the day—a task that relies more on memory than on management. IT SYSTEMES developed a desktop plugin (Windows system tray) that prompts the user at regular intervals: "Which project are you working on?" The selection is made in just two clicks. Time is captured in real time, broken down by file, project phase, and team member, then fed directly into the billing module. No more rough estimates, no more forgotten billable hours. This approach, common in consulting and auditing, is rarely offered to law firms by SaaS providers.

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Can law firm management software be integrated with Microsoft Teams to track calls?

Yes. IT SYSTEMES developed an integration with Microsoft Teams that automatically transcribes and summarizes each call using artificial intelligence. The structured summary—including participants, topics discussed, decisions made, and actions to be taken—is attached to the relevant case file. If the call is billable, the time is automatically posted to the billing module with the correct case file and hourly rate. The attorney simply needs to approve it. As of the publication of this article, this feature is not available in any other SaaS solution on the market.

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How can we systematically bill clients for expense reports?

Disbursements (travel, legal fees, translation, and research) are often billed incorrectly because they are processed through an expense report tool that is disconnected from case management. IT SYSTEMES expense reports directly into the case-to-invoice workflow: each billable expense report is linked to the client’s file and automatically appears on the next invoice. No more separate Excel files, no more missed disbursements. In a firm with 50 employees, unbilled disbursements can amount to several thousand euros per year.

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How much does custom law firm management software cost?

Custom law firm management software starts at €30,000 for a billing module with automated time tracking, and at €90,000 for a full-featured ERP system (CRM, scheduling, document management, NDF, reporting). By comparison: a SaaS solution for 20 users over 3 years—licenses, integrations, add-on modules, internal time—frequently exceeds 114,000 euros, without ever owning the code. A firm with 50 employees received a quote of €388,000 from a traditional provider for a scope of work thatIT SYSTEMES for €105,000.

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Can a custom-built law firm management software system really be delivered in 30 days?

Yes, for projects such as a billing module or CRM system. A firm received a comprehensive billing software solution—including automated time tracking via a desktop plugin, project phase management, invoice generation, and reporting—within 30 days. The full ERP system, which integrates CRM, scheduling, a document repository, and expense reporting, was delivered within a total of 90 days.IT SYSTEMES hyperdevelopment methodIT SYSTEMES on architectural foundations proven across dozens of projects and on AI-generated code supervised by a senior developer.

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Who owns the source code for a custom-developed law firm management software system?

With IT SYSTEMES, you own the source code upon delivery, with no strings attached and no royalties. You receive the complete source code, technical documentation, and intellectual property rights. You can modify the software, outsource it to another provider, or host it on your own servers. This is the key difference from a SaaS provider: you don’t simply rent your business tool.

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How do I migrate data from my old law firm management software?

Data migration is included in every plan at no extra cost. It includes an audit of your existing data (files, contacts, billing history, documents), conversion to the new data schema, validation in a test environment before going live, and a period of parallel operation if you wish. Issues are identified and resolved before go-live, not after.

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Is custom-built law firm software compatible with my existing IT system?

Yes.IT SYSTEMES architectureIT SYSTEMES designed to connect to any system that exposes an API: accounting ERP systems (Sage, Cegid), HR tools, Active Directory, Microsoft 365, Google Workspace, Teams or 3CX telephony, and expense reporting solutions. Each integration is defined during the use case audit and included within the project scope. No integration fees are discovered after the contract is signed.

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What is the difference between a law firm CRM and a law firm ERP?

A CRM (Customer Relationship Management) system manages client relationships: contacts, communication history, the pipeline of new cases, and fee agreements. An ERP (Enterprise Resource Planning) system is more comprehensive: it integrates CRM, billing, time tracking, resource planning, a document repository, expense reports, and reporting. A firm just starting out can begin with a CRM or an invoicing module (30 days, starting at €30,000), then expand to a full ERP system as the need arises (90 days, starting at €90,000). This is the phased approach recommended by IT SYSTEMES.

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Introductory Offer

You only pay once you're convinced.

Have you defined your use cases or drafted a requirements specification? We’ll build a Version 0 of your custom software. No commitment, no risk: you only pay if you decide to move forward.

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You're testing

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You are evaluating

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It's up to you

What exactly is Version 0?

A functional application that incorporates your business use cases—your rules, workflows, and logic. Built on our proven architectural foundation, it allows you to verify in practice that the tool meets your needs. It does not include advanced graphical customization, migration of your existing data, or production deployment—these steps are carried out once you have made your decision.

✓ Convinced?

We'll finalize and migrate your data.

Not convinced?

If you stick with your current solution, you won't have to pay anything.

Offer subject to eligibility — formalized specifications or use cases required.

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