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Payment Applications (Pay Apps)
What are Payment Applications (Pay Apps)?
A payment application (or pay app) is a comprehensive collection of documents that construction contractors submit to request progress payments throughout a project. Rather than just a simple invoice, payment applications include multiple forms and supporting documentation that prove what work was completed, which materials were used, and what payment is due. The typical pay app package includes:
- an application for payment form,
- a continuation sheet with schedule of values details,
- lien waivers, and
- often backup documents like material receipts and payroll reports.
Payment applications are submitted on predetermined schedules—whether monthly, at project milestones, or when specific percentages of work are completed—and serve as the primary billing mechanism for longer, higher-budget construction projects.
For subcontractors, mastering payment applications is critical because they directly impact cash flow and project profitability. The process involves coordinating between accounting teams, project managers, and vendors to gather all required documentation before submission deadlines. Common mistakes—like using incorrect forms, missing documentation, math errors, or late submissions—can delay payments and disrupt cash flow. Many GCs have their own custom forms and specific requirements, making attention to contract details essential.
For detailed guidance on navigating the entire pay app process, check out our payment application guide. Or better yet, check out Siteline—built specifically for commercial subcontractors to streamline the entire payment application process. Siteline handles any custom pay app form, assembles all required lien waivers for you and your lower tiers, and tracks change orders to ensure accurate, on-time submissions. Subcontractors using Siteline get paid up to three weeks faster than with traditional manual processes. Request a demo here and see how Siteline puts your pay apps on autopilot so you can focus on the work that matters most.
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Other construction terms
What is a conditional lien waiver?
A conditional lien waiver is a legal document used in the construction industry that states a contractor, subcontractor, or supplier will give up or waive their right to place a lien on a property, under the condition they receive their expected payment. This waiver serves as a protection mechanism for the party responsible for payment, ensuring that once the payment is made, no future lien could be placed on the property for the services or materials provided.
Conditional waivers come in two forms, tied to when you're billing:
- Conditional progress waiver: Submitted with each progress pay application during the project. It waives your lien rights for the work billed in that period, but only takes effect once you're paid for that period.
- Conditional final waiver: Submitted with your final pay application at closeout. It waives your lien rights for the entire project, including retainage, but only takes effect once you receive full and final payment.
In both cases, the "conditional" part is what protects you: your lien rights stay intact until the payment actually clears, so signing early doesn't cost you leverage if a check is late or bounces.
What is WH-347?
WH-347 is a form utilized in the construction industry by contractors and subcontractors engaged in federal or federally-assisted construction contracts. This certified payroll form, issued by the U.S. Department of Labor, requires contractors to report detailed wage information for employees including hours worked, job classification, rates of pay, and deductions. The purpose of the WH-347 form is to ensure contractors are compliant with the Fair Labor Standards Act regulations. Witnessed and attested to by an assigned company official, this form plays a crucial role in the transparent and fair operation of the construction industry, ensuring that workers are compensated according to stipulated guidelines and in line with labor law regulations.
What is a Contractor?
In the construction industry, a contractor is the party responsible for delivering a project or a portion of it, typically under a formal agreement with the project owner. Contractors oversee labor, materials, equipment, and scheduling to ensure work is completed according to the contract’s scope, quality standards, and timeline.
A general contractor (GC), sometimes called a prime contractor, manages the overall project and hires subcontractors to perform specialized work such as electrical, plumbing, or concrete. Whether a contractor is a GC or a subcontractor, they operate under legally binding terms that outline deliverables, payment schedules, and compliance requirements.
Being a contractor means navigating complex billing requirements—especially on the subcontractor side. Pay applications must match each client’s requirements, include precise documentation, and often wait on a chain of approvals before payment is released. Any hiccup (e.g., a missing lien waiver, the wrong form, an incorrect total) can push payment weeks or even months past due. In an industry where it already takes an average of 96 days to get paid, those delays can put serious strain on cash flow.
Siteline was built to help commercial subcontractors overcome these hurdles. Our software automates pay application creation, keeps lien waivers organized and compliant, and tracks payment status in real time. By streamlining the billing process, contractors using Siteline can avoid lengthy payment delays, strengthen relationships with GCs, and get paid faster.
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