How to Conduct a Contingent Workforce Audit

Conduct a contingent workforce audit by setting clear objectives, reconciling records from across the organization, checking engagements against their agreements and approval processes, and assigning owners to address what the review finds. The audit should cover workers as well as the systems and suppliers used to engage them, because no single record source is likely to show the full picture. It can reveal incomplete records, inconsistent controls, spending patterns, and arrangements that need closer review. The review is a fact-finding and governance exercise, not a legal determination. Its value lies in creating a dependable baseline and using it to make practical changes and guide ongoing oversight.

What Does a Contingent Workforce Audit Examine?

A contingent workforce includes non-employee talent engaged to perform work. Examples include independent contractors, temporary workers, consultants, freelancers, and workers supplied through staffing agencies. The mix varies by organization, so the audit should reflect how the organization actually obtains and manages external labor.

The review is more than a headcount exercise. It examines how external workers enter the organization, who approves their engagements, what work they perform, which agreements govern that work, how payments are made, and whether actual practices match internal policies.

TCWGlobal describes an audit as a structured evaluation of external workers, supplier relationships, contracts, and workforce processes. This broader view helps avoid relying on only one data source, such as accounts payable records or a vendor-management system. TCWGlobal's audit overview emphasizes reviewing the full operating model.

The aim is not to treat every discrepancy as a failure. It is to establish a dependable baseline, identify gaps that matter, and create a practical plan to improve workforce governance.

How Should You Define the Scope and Ownership?

Before requesting reports, decide what the audit needs to help the organization understand or decide. A broad question such as “Who are our contractors?” can be difficult to manage. Set specific objectives instead. The audit might aim to:

• Create a complete inventory of external workers and suppliers.
• Compare active engagements with approved contracts and purchase orders.
• Identify inconsistent approval, onboarding, or offboarding practices.
• Review spending by department, supplier, location, or work type.
• Flag engagements that may need classification, tax, employment, privacy, security, or procurement review.

Assign one accountable audit owner and form a cross-functional working group. Procurement can provide supplier agreements while finance supplies payment data. IT can check system access, and business leaders can explain the work being performed. Legal, HR, security, and compliance teams can help set review criteria and assess findings within their areas.

Lifted's audit guide recommends setting scope, objectives, and ownership before gathering reports. The practical point is to decide why the organization is auditing before deciding what data it needs.

How Do You Build a Reliable Inventory?

The central audit deliverable is a reconciled inventory of contingent labor. Gather records from every system or team that may hold part of the picture. These can include vendor lists, accounts payable records, purchase orders, staffing agency rosters, onboarding records, system-access lists, and department spreadsheets.

Bring the information together in a controlled working file or system, then standardize the fields. At a minimum, capture the worker or supplier name, business owner, department, engagement type, start date, expected end date, contract reference, cost information, work location, system access, and current status.

Reconcile the records rather than assuming any one source is complete. Look for people with system access but no active engagement record, suppliers receiving payments without a current contract reference, and engagements that continue beyond an expected end date. These mismatches do not establish misconduct by themselves. They identify cases where the organization needs better information or clearer controls.

How Should You Review Engagements and Risk?

For each engagement, check whether a written agreement exists and whether it describes the services, deliverables, duration, and payment terms. Confirm that the appropriate business owner approved the engagement. Check whether access is limited to what the work requires and is scheduled to end with the engagement. Most importantly, compare the documented arrangement with the work as it is actually performed.

That comparison can surface worker-classification and co-employment concerns. For example, a contractor's schedule, supervision, tools, or duration may begin to resemble those of a direct employee. This can warrant review under applicable federal or state wage, tax, and benefits requirements, even when the original contract was drafted correctly. Co-employment concerns can also arise when a client company manages staffing-agency workers so closely that responsibility for employment obligations needs further examination.

Access and information-security controls belong in the same review. A contractor retaining system credentials after an engagement ends creates a security exposure and may conflict with the documented end date. Record the mismatch and route it for correction.

An audit does not decide legal classification or resolve legal questions on its own. Its role is to identify where contracts, access records, and working arrangements do not align, then route those cases for appropriate review. Treat findings as facts to assess rather than as legal conclusions. For engagements involving independent contractors, guidance on managing contractors provides additional context. It does not replace a review of the specific arrangement.

What Cost and Supplier Patterns Should You Look For?

Segment contingent labor costs by department, supplier, project, location, and engagement type. Patterns can help leaders ask better planning questions. Repeated extensions of short-term assignments may indicate a need for a more deliberate staffing plan. Several suppliers providing similar services may present an opportunity to simplify procurement. A high-cost consultant doing recurring work may prompt discussion about whether the work should instead be handled through a permanent role.

Interpret spending changes in context rather than treating an external example as a universal benchmark. In its 2025/26 annual report, the UK Government Commercial Agency reported that contingent labor costs had increased by 20% compared with 2024/25. It also described a focus on policy compliance, conflicts of interest, and raising concerns. The report concerns that agency specifically. It illustrates why spending reviews are more informative when considered alongside governance and controls. The GCA annual report provides the agency's account of those findings.

How Do You Turn Findings into Actions?

A long list of findings is not useful unless someone is responsible for acting on it. Rank issues by likely impact, urgency, and effort. Immediate actions may include removing unnecessary access, confirming which engagements remain active, and locating missing agreements. Near-term improvements may standardize intake forms, approval workflows, and offboarding checklists. Longer-term changes may improve data integration, establish preferred supplier arrangements, or create regular audit cycles.

For each action, name an owner, set a due date, state the expected outcome, and define how completion will be confirmed. Report results to leadership in plain language: what the audit found, why it matters, what decision is needed, and how progress will be measured.

Where the findings point to gaps in the worker’s arrival or departure process, compare current practices with the organization’s onboarding process. A consistent process can help make approvals, required records, and access arrangements easier to verify during later reviews.

How Can Governance Continue After the Audit?

Use the audit as the starting point for ongoing governance rather than treating it as a one-time exercise. Set a review cadence for active engagements, contract expirations, supplier performance, access removal, and spending trends. The appropriate cadence depends on the organization's size, risk profile, and volume of external labor.

Carry forward the cross-functional ownership established for the audit. Business leaders, procurement, finance, and compliance teams should each have a defined role so reviews and corrective actions do not wait until a problem appears. PwC's strategy guidance recommends including governance in contingent workforce planning and considering current and future workforce needs. This supports treating contingent labor as a workforce-planning issue as well as a purchasing category.

What Should You Confirm Before Closing the Audit?

Before closing the review, confirm that the organization has a reconciled inventory and can identify its most important unresolved risks. Each action should have an owner and deadline. Findings that need legal, tax, or compliance review should be routed to the appropriate internal reviewers, and the next audit cycle should have a planned start date. These steps turn scattered records into decisions about cost, risk, access, and workforce planning.

*This article is for general informational purposes only and is not legal advice.