What Is a WIP Schedule for a Subcontractor? A GC Guide

When a general contractor evaluates a subcontractor for a significant project, insurance and safety records are only part of the picture. The GC also needs to understand whether the subcontractor has the financial and operational capacity to take on the work without becoming overextended.

One document that can help is a work-in-progress (WIP) schedule.

A WIP schedule gives a job-by-job view of a construction company’s active contracts. It can show contract value, costs incurred, estimated costs to complete, billings, earned revenue, and estimated profit. For a GC, that information can provide useful context about a subcontractor’s current workload and financial capacity.

This guide explains what a subcontractor WIP schedule is, why GCs may request one, what information to review, common warning signs, and how WIP information fits into a broader subcontractor prequalification process.

What is a WIP schedule?

A WIP schedule is a report that summarizes the financial status of a contractor’s active projects. WIP stands for work in progress.

The exact format varies by contractor and accounting system, but a useful WIP schedule commonly includes:

• Project name or identifier
• Original contract amount
• Approved change orders
• Revised contract amount
• Costs incurred to date
• Estimated total cost
• Estimated cost to complete
• Percentage complete
• Billed to date
• Earned revenue
• Estimated gross profit
• Estimated gross-profit percentage
• Amounts billed ahead of or behind earned revenue

The purpose is not simply to list a subcontractor’s projects. It is to show how management currently expects those projects to finish financially.

Current construction prequalification materials demonstrate that WIP schedules are commonly requested alongside financial statements, insurance, safety records, and bonding information. The Hartford’s subcontractor prequalification procedure, for example, lists several years of WIP schedules or a current backlog figure among its requested information. urlThe Hartford subcontractor prequalification procedurehttps://assets.thehartford.com/image/upload/bond_subcontractors_procedure_flyer.pdf

Why would a GC request a subcontractor WIP schedule?

A WIP schedule can answer questions that a balance sheet or income statement cannot answer by itself.

A balance sheet tells you about the company’s assets, liabilities, and equity at a particular point in time. A WIP schedule adds project-level context: what work is currently underway, how much remains, and whether management’s current estimates appear reasonable.

For a GC, the questions may include:

• How much work does the subcontractor already have under contract?
• How much of that work remains to be completed?
• Does the subcontractor have several large projects finishing at the same time?
• Are project margins stable or deteriorating?
• Is the company consistently estimating costs accurately?
• Is the subcontractor taking on a new project that is unusually large compared with its existing workload?

A WIP should therefore be treated as one input into risk review, not as a standalone approval or rejection mechanism.

What is the difference between backlog and WIP?

The terms are related but are not identical.

Backlog generally refers to contracted work that has not yet been completed. A WIP schedule provides a more detailed project-by-project picture of that backlog and its expected financial performance.

For example, a subcontractor could report $8 million of remaining work. That number alone does not tell the GC whether those projects are profitable, whether costs are rising, or how much working capital is tied up in completing them.

A WIP schedule can provide that additional context.

What should a GC review on a subcontractor WIP schedule?

1. Contract value and change orders

Start by understanding the size of each project. Look at the original contract amount, approved changes, and revised contract value where those figures are available. Large changes can be normal in construction, but significant differences deserve context.

2. Costs incurred to date

Compare costs incurred with the reported percentage of completion. The calculation method matters, so ask the subcontractor or its financial team to explain the methodology when the numbers are unclear.

3. Estimated cost to complete

This is one of the most important figures because it represents management’s current estimate of the remaining cost required to finish the project. Pay attention to projects where estimated cost to complete has increased materially over time.

4. Estimated gross profit

Look at expected profit on active projects and, where historical schedules are available, whether margins are holding steady. A project that began with a healthy expected margin but now shows little or no expected profit may warrant further questions.

5. Billings compared with earned revenue

WIP reporting can identify situations where billings are ahead of or behind earned revenue based on the contractor’s accounting method. These differences are not automatically evidence of financial trouble. They can result from normal billing structures, contract terms, timing, or project conditions.

6. Projects with significant estimated losses

If a subcontractor expects a major project loss, the GC should understand why. Possible causes include estimating errors, material price changes, productivity problems, scope disputes, schedule delays, or unforeseen site conditions. The WIP schedule should lead to questions, not automatic conclusions.

What are common WIP warning signs?

A GC should avoid creating universal thresholds that apply to every trade and project. Instead, look for patterns that deserve additional review.

Potential warning signs include:

• Repeated reductions in estimated project margins
• Large unexplained increases in estimated cost to complete
• Several projects approaching completion with significant unresolved losses
• Backlog that appears large compared with the subcontractor’s available financial resources
• Material differences between WIP information and financial statements
• Frequent revisions without a clear explanation
• A new award that would become one of the company’s largest projects by a wide margin
• Significant underbilling or overbilling patterns that management cannot explain

These are review triggers, not universal disqualification rules.

How should WIP information be compared with financial statements?

A WIP schedule becomes more useful when it can be reconciled with the subcontractor’s financial reporting.

For example, a GC may compare total WIP information with revenue, accounts receivable, contract assets or liabilities, and profit reported in the financial statements.

Current construction guidance notes that a WIP schedule can reveal backlog and margin information that a balance sheet alone does not show. urlReading a subcontractor’s financial statementshttps://support.construction/guides/finance/reading-subcontractor-financials/

If the two sources appear inconsistent, ask for an explanation rather than assuming one is incorrect.

How current should a subcontractor WIP schedule be?

There is no universal age requirement for every project. The appropriate date depends on the GC’s qualification policy, project size, owner requirements, contract, and risk tolerance.

The GC should record:

• WIP report date
• Reporting period
• Who supplied it
• Whether it was reviewed
• Any follow-up questions
• Final review outcome

This makes the document useful later instead of leaving a PDF with no context in an email attachment.

Should every subcontractor provide a WIP schedule?

Not necessarily. The depth of financial review should be proportionate to the exposure. A GC may reasonably use a lighter process for a small, low-risk trade and a more detailed review for a large subcontract package or critical-path subcontractor.

Current prequalification guidance similarly recommends scaling documentation requirements based on contract size and exposure rather than applying the same financial packet to every subcontractor. urlSubcontractor prequalification guidancehttps://support.construction/guides/operations/subcontractor-prequalification/

Your internal policy should define when a WIP schedule is required and what happens when a subcontractor cannot provide one.

What if a subcontractor does not provide a WIP schedule?

Do not automatically assume that the subcontractor is financially weak. Some smaller companies may not maintain the same level of formal WIP reporting as larger contractors.

A GC can document the limitation and apply an alternative review appropriate to the exposure. For example:

Status: Conditional financial review — current WIP schedule unavailable. GC obtained current backlog, financial statements, references, and bonding information for additional review.

The important part is documenting the exception rather than silently treating the missing document as complete.

WIP schedule vs. other subcontractor documents

No single document provides a complete picture of subcontractor risk.

How to organize WIP reviews in a compliance workflow

WIP schedules are often collected during prequalification and then forgotten until the next major award. A better process is to store the WIP document with the subcontractor’s qualification record and record the review outcome separately.

Useful fields include:

• Reporting date
• Financial-review status
• Reviewer
• Review date
• Exceptions
• Follow-up questions
• Award limitations, if applicable
• Next review trigger

This is particularly useful when the same subcontractor bids on multiple projects. The company-level financial review can be reused as appropriate while project-specific decisions remain separate.

SubCada can help organize subcontractor compliance and qualification records so teams do not have to reconstruct the current status of a trade partner from spreadsheets, email attachments, and disconnected folders.

WIP schedule review checklist for GCs

• [ ] Current reporting date recorded
• [ ] Subcontractor legal entity verified
• [ ] Active projects listed
• [ ] Contract values reviewed
• [ ] Approved changes considered
• [ ] Estimated cost to complete reviewed
• [ ] Expected margins reviewed
• [ ] Significant margin changes investigated
• [ ] Billing position reviewed
• [ ] Material losses or unusual items investigated
• [ ] WIP information compared with financial statements where appropriate
• [ ] Backlog considered relative to the proposed award
• [ ] Exceptions documented
• [ ] Reviewer and review date recorded
• [ ] Next review trigger established

Frequently asked questions

Is a WIP schedule the same as a backlog report?

No. A backlog figure summarizes remaining contracted work, while a WIP schedule generally provides more detailed project-level financial information about active work.

Do GCs legally have to collect WIP schedules?

There is no universal rule requiring every GC to collect WIP schedules from every subcontractor. Requirements can come from company policy, owner requirements, contracts, lenders, insurers, or risk-management procedures.

What is the most important part of a WIP schedule?

There is no single number that works for every situation. For a GC, project size, estimated cost to complete, margin trends, backlog, and consistency with financial reporting are all useful areas to review.

Can a small subcontractor be approved without a WIP schedule?

Potentially. The appropriate process depends on the exposure and your qualification policy. A documented alternative review may be reasonable when formal WIP reporting is unavailable.

Should WIP schedules be updated every month?

The appropriate frequency depends on the subcontractor, project, and GC policy. The important thing is that the information is sufficiently current for the decision being made.

Final takeaway

A subcontractor WIP schedule gives a GC a project-level view that complements insurance, safety, licensing, and general financial information. It can help the GC understand active workload, remaining costs, project margins, billing positions, and potential capacity concerns.

The best use of a WIP schedule is not to turn one ratio into an automatic approval rule. It is to ask better questions, document the review, and connect the result to the subcontractor’s broader qualification record.

This article is general informational content and is not legal, accounting, insurance, or financial advice. Requirements and review methods vary by project, contract, trade, and organization.