The shared service tax – the hidden cost of "manual cleaning" in global finance

Tales from the industry – Part 3.
In this series, former consultants, audit managers, and finance leaders share the reality of expense management at global professional services firms and the gap between the efficiency they sell to clients and the processes their people navigate every day.

Every professional services firm knows, to the penny, what it spends on travel and entertainment.

Far fewer can say with any confidence what it costs to process that spend. The first figure sits neatly in the general ledger. The second is distributed across offshore payroll budgets, software licensing fees, and the quiet, accumulating hours of manual reconciliation that never appear on a single line item.

It is this second figure – the operational overhead of making data clean enough to trust – that represents one of the largest unexamined costs in global professional services: the "shared service tax."

To the consultants in London or New York, the back office is often a "black box" – a place where expenses are submitted and queries are raised by an anonymous reviewer in a different timezone until, eventually, the ledger balances. But for the firm, this process reveals a startling structural disconnect.

The dysfunctional-functional model

Firms are not just losing money on the expenses themselves – they are losing a significant sum on the human capital required to "clean" the data that legacy systems fail to capture correctly.

The ambition for global firms is a single source of truth. The reality is often a fragmented map of legacy plugins and localised workarounds.

A former audit manager – who worked on engagements for a global professional services firm across three continents – saw this fragmentation first-hand. He observed how complex global operating models can become.

"On paper, everything was highly structured," he explains, "but in practice, different regions sometimes worked through separate shared service centres with limited day-to-day interaction. From a user's perspective, that could make routing queries and resolving issues feel more complex than it needed to be."

This fragmentation does not just create a slow back office – it creates an "information lag." When spend data has to be manually reconciled by a human in a shared service centre before it hits the ERP, the finance director is always looking in the rearview mirror.

Reclaiming the headcount

The scale of this manual effort is often hidden in offshore budgets – where headcount is used as a short-term workaround for legacy infrastructure.

A former audit manager at a leading professional services firm points out the scale of the opportunity: "When you have hundreds of thousands of employees charging expenses every day, that manual reconciliation cost is immense. Moving towards a system where things are on autopilot is a massive opportunity – to reallocate that headcount spend toward revenue-generating roles instead of manual data cleaning."

"In many large firms, project-related expenses ultimately flow through to the client," a former audit manager notes. "Where there's an opportunity to improve FX management and automate reconciliation, even modest percentage gains on large expense bases can translate into meaningful value for the CFO. Legacy systems weren't always designed with that level of granularity in mind."

Conclusion: Moving from "checking" to "analysing"

The opportunity for modern finance leaders in professional services is to move from "policing" to "enabling." When the system enforces policy at the point of sale – via virtual cards with built-in limits – the mountain of manual reconciliation in offshore hubs disappears.

By replacing fragmented banking portals with a unified, global control layer, finance moves from being a data-cleaning function to a strategic partner – providing partners with the real-time visibility they need to protect their margins in an increasingly competitive market.