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Construction glossary
Construction Glossary •

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

Contractor

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.

Retainage

What is Retainage?

Retainage is a common practice in the construction industry where a portion of a subcontractor's payment is withheld until the project reaches substantial completion or a specific milestone. This withheld amount, typically 5-10% of each progress payment, serves as a safeguard for the project owner, ensuring that the work is completed to their satisfaction. However, retainage can significantly impact subcontractors' cash flow, as it ties up a portion of their earnings and limits their access to working capital.

This restriction on cash flow can create challenges for subcontractors, especially smaller businesses with limited financial resources. They may need to secure additional financing or lines of credit to cover ongoing expenses like labor, materials, and overhead. This can lead to increased borrowing costs and potentially reduce their profit margins. In some cases, subcontractors may even delay starting or completing work until retainage from previous projects is released, causing potential disputes.

To mitigate these challenges, subcontractors should carefully review and negotiate retainage contract terms, ensuring they fully understand the percentage withheld, release conditions, and payment schedule. Proactive financial planning, including budgeting for delayed payments and potential additional financing, is crucial for navigating the pitfalls associated with retainage.

Siteline can be a valuable tool in this process. It allows subcontractors to track retainage meticulously—ensuring they always collect retention payments—and provides a centralized repository for all closeout documentation. Additionally, Siteline streamlines the billing process, generating accurate and timely pay applications and submitting the correct lien waivers, further simplifying the complexities of retainage management.

If you're looking to gain control over your retainage tracking and improve your overall billing efficiency, book a demo with Siteline today.

Outside Financing

What is Outside Financing?

Outside financing, in the context of the construction industry, refers to the process of seeking funds from external sources to cover costs associated with building projects. These sources can be institutional lenders like banks, credit unions, insurance companies, or private sources such as private equity funds, venture capitalists, or individual investors. Construction firms can opt for outside financing when internal resources or profits aren't sufficient to meet the materials, labor, and equipment costs. Different types of outside financing for construction can include loans, lines of credit, or bonds. The specific financing option chosen often depends on factors such as the scale of the project, the creditworthiness of the construction firm, and the risk appetite of the prospective financer. Some loans could be short term, covering immediate costs, while others may be long term, planned for extensive projects. While outside financing can be a lifesaver, it's noteworthy that it adds to the project's overall cost due to the interest and fees charged by lenders. Thus, it should be optimally strategized in the project's financial planning phase.

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