What is a Contract?

A Chart of Accounts (COA) in the construction industry is essentially a financial organizational tool that provides a complete listing of every account in an accounting system. These accounts are typically used to categorize financial transactions that a business has to deal with to conduct its everyday operations. In construction, the COA may include accounts such as materials, labor costs, subcontractor fees, overhead expenses, equipment costs, and liabilities. Different project types will often require different charts of accounts. Furthermore, the COA assists in organizing the company's finances and ensuring accurate financial reporting, it's also important for identifying the total costs of a construction job, tracking profit margins, and analyzing expenses. It's a critical tool in managing a construction company's finances.

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.

A request for change order (RFC) is a formal document that subcontractors submit to general contractors when they encounter work that falls outside their original contract scope. Unlike the actual change order, which is the approved contract modification, an RFC is the preliminary request that kicks off the approval process. These requests typically include details about the additional work, justification for why it's necessary, cost estimates, and timeline impacts.

RFCs are critical for protecting subcontractors from performing unbillable work, but they need to be submitted quickly when field conditions change. The challenge is that field teams often discover the need for additional work while actively working on-site, but the documentation and approval process typically happens back in the office. This disconnect can create delays that either hold up project progress or pressure subcontractors to proceed with work before getting proper approval.

Siteline streamlines this process by bridging the gap between field and back office teams, making it easier to document scope changes as they happen and convert them into well-organized requests. See how Siteline can improve your RFC process—request a personalized demo here.