Aging Unbilled Work report: How to keep your cash flow healthy

This issue is particularly challenging for firms working on Time and Materials (T&M), Fixed Fee, or hybrid projects, where billing structures vary and keeping up with unbilled work requires precise tracking. Without the right tools, firms risk missing billable hours, delaying payments, and weakening their financial position.

To solve this, EVX Software offers the Aging Unbilled Invoices Report—a tool designed to help firms understand, track, and act on outstanding invoices before they disrupt operations.

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What is an Aging Unbilled Work report?

An Aging Unbilled Work Report provides a structured overview of work that has been completed but not yet invoiced. Instead of waiting until billing problems arise, this report gives firms clear visibility into outstanding revenue, categorized by how long the work has remained unbilled.

How Does the Aging Structure Work?

The report breaks down unbilled amounts into aging periods, allowing firms to quickly assess which invoices require urgent attention:

• 0–30 days: Work that has been completed recently and is within a normal billing cycle.
• 31–60 days: Potential billing delays; firms should check if approvals or documentation are missing.
• 61–90 days: Unbilled work that is now at risk of becoming a financial bottleneck. Follow-ups are critical.
• 90+ days: Long-overdue invoices that require immediate action, as delayed billing can affect cash flow and project stability.

By organizing unbilled work in this manner, firms can prioritize invoicing efforts, ensuring that revenue is collected without unnecessary delays.

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How EVX Software’s report works

EVX Software’s Aging Unbilled Work Report is designed to give firms full control over how they view and analyze unbilled work. Instead of a one-size-fits-all approach, firms can customize the report to match their financial and project tracking needs.

Key Features of the Report:

✔ Flexible Grouping: Organize data by project type, client, project manager, contract phase, rate schedule, or country.

✔ Multi-Layer Sorting: Apply up to three levels of grouping for deeper analysis.

✔ Project Display Options: View projects by Project ID, Project Name, or both for easy reference.

✔ Sorting by Date Range: Choose between ascending or descending order to prioritize recent or long-overdue invoices.

This flexibility allows both financial teams and project managers to easily spot trends, identify overdue invoices, and take corrective action before billing delays become a problem.

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A step-by-step guide to interpreting the report

Once the report is generated, here’s how to interpret the data effectively:

Step 1: Identify the primary grouping

The first grouping option provides a broad overview of unbilled invoices based on selected criteria (e.g., client, project manager, or contract phase).

• If grouped by client: You can immediately see which clients have the most unbilled work.
• If grouped by project type: You can visualize the projects based on the types of projects your firm manages and understand the financial health of each type..

Step 2: Add additional grouping (optional)

Applying two or three layers of grouping helps refine the report further.

• Example: If the first group is by project manager, adding a second grouping by contract phase shows which contract stages tend to accumulate the most unbilled work.

Step 3: Review the aging breakdown

The report automatically categorizes unbilled work into Current, 30, 60, 90, 120, 150 and 180 days.

• If most unbilled work falls in 0–30 days, billing cycles are functioning properly.
• If many invoices are in 31–60 days, check for approval bottlenecks or missing documentation.
• If a large percentage is in 90+ days, immediate action is required to prevent financial instability.

Step 4: Identify potential billing risks

By analyzing the data, firms can spot patterns that indicate recurring billing issues:

• Are certain clients consistently delaying invoice payments?
• Do specific project managers have more unbilled work than others?
• Are certain types of projects experiencing more unbilled delays than other projects?

Step 5: Take action

The insights from this report allow firms to follow up on overdue invoices before they affect cash flow and project funding.

• Contact clients with 90+ day outstanding invoices to arrange payment.
• Review internal approval workflows for delays.
• Adjust billing schedules to prevent similar issues in future projects.

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Why this report matters

For Environmental Consulting and Engineering firms, cash flow isn’t just a financial metric—it’s the key to keeping projects moving. A firm can have millions in unbilled work, but if revenue isn't collected on time, it can struggle to cover payroll, equipment costs, and project expenses.

Key benefits of using this report

• Prevents revenue loss by ensuring all billable work is accounted for.
• Improves cash flow so firms can confidently invest in operations.
• Reduces financial risk by identifying overdue invoices before they become uncollectible.
• Enhances client relationships with transparent invoicing and proactive follow-ups.

Without this level of financial visibility, firms risk underbilling projects, losing revenue, and struggling to meet financial obligations. This report puts control back in the hands of project managers and finance teams, making financial tracking simple and effective.

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Conclusion

Managing unbilled work doesn’t have to be complicated. With the Aging Unbilled Work Report, Environmental Consulting and Engineering firms can track outstanding revenue, prevent cash flow disruptions, and ensure all completed work gets invoiced.