What is the percentage-of-completion method?

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 Notice of Commencement (NOI) is a legal document filed by general contractors (GCs) to formally declare the start of a construction project. In addition to establishing an official record of when construction began, it also provides essential information about the project—property details, project scope, contact information for key project stakeholders, etc. In some states, it may be referred to as a Notice of Project Commencement, an Affidavit of Commencement, or a Notice of Contract. 

For subcontractors, NOCs are important because they determine when you need to file paperwork to protect your lien (and thereby, payment) rights. Once the owner or GC files an NOC, it often changes the deadlines for when you must submit preliminary notices and mechanics’ liens. These documents contain vital project information, including:

• legal property descriptions,
• owner details,
• GC information, and
• surety data.

In most states where NOCs are required, they must be posted at the job site and recorded with the county clerk’s office. Subcontractors should be aware that failing to respond properly to an NOC could result in losing their right ot file a lien if a payment issue arises.

Staying informed about documentation like NOCs is crucial for securing payment on construction projects. For more detailed information on how to protect your lien when working on projects with an NOC, visit this blog post for the complete guide and best practices. Subscribe to Siteline’s newsletter for regular updates on getting paid on time and protecting your bottom line.

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.