Plain definition
Shared services is a centralised model for delivering repeatable support processes, such as accounts payable, payroll, expense processing, or customer administration, to several business units. It aims to standardise work, improve specialist capability, reduce duplication, and make service performance visible. Centralisation does not remove the business unit’s responsibility for the underlying commercial decision or evidence.
The model succeeds when process ownership, service levels, data standards, escalation, controls, and feedback are clear. A distant central team can otherwise process transactions efficiently while missing local facts needed to resolve exceptions or protect customer and supplier relationships.
Illustrative example
Suppose several regional offices send employee expense claims to one shared-services centre. The centre checks policy compliance and supporting receipts, while local managers confirm that the travel was for a legitimate business purpose. When a repeated claim is rejected for missing evidence, the centre records the reason and the regional manager decides whether to correct the claim, improve training, or change the local approval practice.
The centre has processed consistently, but the operating manager remains accountable for the business reason for the travel. The feedback loop prevents central efficiency from becoming a barrier to fixing recurring local problems.
Shared services may be internal, captive, or provided through a group arrangement; responsibility for controls and statutory obligations must still be explicit.
Why it matters
It can improve consistency, control visibility, and service quality across dispersed operations.
It prevents each unit from reinventing the same transaction process with different evidence and uneven control standards.
Practical consequence
Define the service catalogue, service levels, data and evidence requirements, escalation routes, and responsibilities retained by each business unit.
Track exceptions and customer feedback by cause and location, then use them to improve the process instead of measuring success only by transaction volume or cost.