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Legal spend management: how to control and report on legal costs

Written by Andrew Mellett | 01/07/2026 1:28:20 AM

Legal is often one of the harder budgets to predict and control. Legal spend management is how in-house teams get a grip on it.

What is legal spend management?

Legal spend management is the way an in-house legal team tracks, controls and reports on what the organisation spends on legal work. It covers external costs, such as law firm fees, and the internal cost of running the function, and its purpose is to give the general counsel and the business clear visibility and genuine control over both.

What does legal spend include?

Legal spend is broader than law firm invoices. It includes external counsel and law firm fees, disbursements and court costs, legal technology and subscriptions, and the internal cost of the in-house team itself. External counsel is usually the largest and most variable component, which is why it tends to be the focus of cost control.

Why is legal spend hard to manage?

Several things make legal spend difficult. It is often unpredictable, because legal needs arise without warning. It is spread across many matters and suppliers, so no single view exists by default. Invoices can be opaque and hard to compare. And legal work is frequently urgent, which weakens cost discipline in the moment. Without good data, the function ends up reporting spend after the fact rather than managing it.

How do you manage legal spend effectively?

Effective spend management rests on three habits.

Track all spend in one place

Bring every cost into a single view rather than leaving it scattered across invoices and inboxes. Good matter management is the foundation, because it connects each cost to the matter that drove it.

Manage external counsel and matters

Set budgets for significant matters, agree fee arrangements up front, and review external counsel spend against those budgets rather than simply paying invoices as they arrive.

Report spend against budget

Report regularly on spend against budget, by matter type and by supplier, so trends are visible and the next period can be forecast. This is where reporting and analytics turns raw cost data into something the GC can act on and present to the business.

Legal spend management and legal operations

Legal spend management is a core part of legal operations, the discipline of running the legal function efficiently and demonstrating its value. Legal ops uses spend data alongside matter and performance data to manage resources, justify investment, and show the business what it is getting for its legal budget.

How Plexus gives you visibility over legal spend

Plexus connects spend to the work that generates it. Matters and contracts are tracked in one place, costs sit alongside the work they relate to, and reporting gives the general counsel a clear, current view of legal spend against budget. The function can manage costs proactively and report on them with confidence, rather than reconstructing the picture from invoices after the fact.