When billing guidelines aren’t enough

Manage scope and staffing up front

When dashboards create noise.
  • Insight
  • 5 minute read
  • 11/05/26
Philipp Rosenauer

Philipp Rosenauer

Partner, Legal, PwC Switzerland

Yana Zoloeva

Yana Zoloeva

Partner, EMEA NewLaw Leader, PwC Switzerland

Legal teams often have the essentials in place: approving timekeepers, setting rates, publishing billing guidelines, and processing invoices through e-billing systems. In theory, this should ensure control.

But familiar challenges persist: unexpected cost surges, subtle shifts in staffing models, or invoices that seem like a retrospective of forgotten decisions. The reality is that many "controls" kick in only after costs have been incurred.

To achieve predictable external legal spending, it's crucial to manage the work itself—not just the billing. This involves refining how matters are scoped, planned, staffed, and adjusted. The encouraging news? You don't need a complete overhaul. A focused set of practices can elevate you beyond the basics.

The ceiling of the basics

The essential toolkit is practical. Approving timekeepers can prevent obvious rate increases. Billing guidelines help reduce friction and clarify payment terms. Reviewing invoices can catch errors and uphold standards.

But these measures have their limits. Monitoring individual rates and hours often misses the core question driving costs: how much control do you have over staffing and scope? If the work grows, the team shifts, or assumptions aren't communicated, surprises can still arise even when every detail is technically correct.

The most effective teams see the basics as foundational and establish controls earlier in the process—right at the design stage.

Four moves that take you beyond the basics

For any matter likely to exceed a modest effort threshold (for example, more than 25-50 hours of work or a defined spend level), require a simple matter plan and budget before the work ramps up. A useful budget is not a single number; it is a breakdown by phase and task with explicit assumptions, key risks, and the intended staffing mix. The goal is not perfect prediction - it is shared expectations.

  • Ask for staffing distributions (who will do what, at what level), not just names on an org chart.
  • Capture assumptions and exclusions in writing so later changes are visible rather than implicit.
  • Treat the budget as a living artifact: revisit it at defined milestones and when facts change.

Many engagements start with a hallway conversation that turns into months of work. Instead, standardise a “record of instruction” (or work order) that captures scope, deliverables, timing, reporting cadence, and what is out of scope. Pair it with the matter plan and budget. When instructions are consistent, both sides spend less time debating what was meant and more time delivering.

  • Define what “done” looks like (outputs, decisions supported, and handoffs), not just activities.
  • Agree on the information you expect to receive (status, budget-to-actuals, upcoming risks).
  • Include a simple change-control step: when scope shifts, the work order and budget are updated before the work continues.

Alternative fee arrangements (AFAs) have the greatest potential to improve predictability, but only when the scope is understood and the work is structured. The practical rule is simple: when you have a matter plan and a baseline budget, you have what you need to discuss non-hourly pricing. Without that foundation, AFAs become guesswork or narrow pilots that never scale.

  • Use phased or hybrid models (for example, fixed or capped fees by phase with a performance component) to align incentives without forcing unrealistic certainty.
  • Invite the firm to propose options - but require that each option ties back to the matter plan and assumptions.
  • Be honest about risk-sharing: clients often want certainty while firms are willing to innovate, but only when expectations are clear.

Few teams want to spend time on forensic invoice review. And asking for retroactive write-downs is uncomfortable and often inefficient. A better approach is preventive: require exceptions and change orders before the work is done. If a matter is going to exceed its assumptions, the firm raises it early, the plan is refreshed, and a decision is made with full context.

  • Keep invoice review focused on anomalies, not as the primary spend-control mechanism.
  • Shift administrative burden toward the firm: request change orders, document exceptions, and keep the record current.
  • Use the matter plan, work order, and budget as the reference point for what “approved” means.

What you need to make this stick

These practices work best when they are supported by capability, not heroics. That means the right tools, the right roles, and the experience to use them well.

On the firm side, many leading firms already have professionals who support project planning, budgeting, and pricing. On the client side, in-house counsel benefit from basic training in budgeting, matter economics, and how to run a disciplined intake-and-change process. The objective is not to turn lawyers into accountants; it is to equip them to make informed trade-offs early.

Start small. Pick a few matter types, set a clear budgeting threshold, introduce a simple work-order template, and require change orders for scope shifts. Once the muscle is built, it scales naturally across the portfolio.

Key takeaway

The best way to manage external legal spend is not to argue about hours after the fact. It is to agree on scope, staffing, and price up front - and to manage changes with discipline so both sides stay aligned as the matter evolves.

Contact us

Philipp Rosenauer

Partner, Legal, PwC Switzerland

+41 58 792 18 56

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