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Construction glossary

What is AIA® billing?

AIA® billing is a standardized payment application process for construction projects. Developed by the American Institute of Architects (AIA®), it uses specific forms—primarily the G-702® Application and Certificate for Payment and G-703® Continuation Sheet—to document and request progress payments throughout a project. These forms create a uniform system for contractors that shows exactly what work has been completed, what materials have been stored, and what payment is due during each billing period. They also require detailed information about contract values, change orders, and retainage amounts. AIA® has become the industry standard, especially for larger commercial projects and government contracts.

For subcontractors, understanding AIA® billing is essential since most large general contractors (GCs) require these forms or customized versions of them. While AIA® billing can initially seem complex, it provides important benefits like reducing payment disputes, creating clear documentation of work progress, and often resulting in faster payments. Mastering AIA® billing opens doors to working with larger GCs and bidding on more substantial projects. That’s why we created this comprehensive guide, filled with detailed information on completing AIA® billing forms and managing the payment application process.

Siteline simplifies the AIA® billing process by automating form creation and submission. Our system currently maintains 15,000 custom billing forms from more than 10,000 GCs, enabling subcontractors to generate perfect pay apps in minutes for fewer delays and faster, more predictable payments. Schedule a no-obligation demo to see how Siteline can help you streamline AIA® billing and reduce invoice aging by at least 30%.

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Other construction terms

Top-of-Chain, or High-Tier

What is Top-of-Chain or High-Tier?

Top-of-Chain or High-Tier refers to the superior position in a hierarchical structure within the construction industry, often denoting the entities or individuals who have the utmost authority or control. This could involve top-tier construction companies, project managers, stakeholders, or contractors who handle major decisions and oversee the whole project operations. These high-tier participants are responsible for ensuring the project is executed according to the plan, budget, and timeframe. They manage sub-contractors, labor crews, purchase materials, and communicate with clients. Their decisions have significant influence on the project's success. Being at the top of the chain, they often bear the highest level of risk, but also stand to make the most profit.

Pay-When-Paid Clause

What is a Pay-When-Paid Clause?

A Pay-When-Paid Clause refers to a contractual provision often used within the construction industry. This clause essentially stipulates that a contractor or a subcontractor is not obliged to pay their subcontractors or suppliers until they themselves receive payment from the project owner. It serves to manage the risk associated with the delay or failure of payment in the construction chain, allowing the contractor to pass on the financial risks to the subcontractors. Such a clause can have significant implications on cash flows and may affect the commercial viability of construction projects, particularly for smaller subcontractors. It's crucial for all parties involved to carefully negotiate these provisions.

ACH (Automated Clearing House)

What is an Automated Clearing House (ACH)?

An Automated Clearing House (ACH) within the construction context refers to an electronic fund transfer system primarily used for direct deposit payments, including for construction services. It's a method universally used by many businesses in the industry for its convenience and speed. This system provides an efficient platform for moving funds from one account to another in a collective and prioritised manner, aiding greatly in the financial management of a construction project, including payroll and paying suppliers. The benefits include prompt payment, less risk of cheque fraud, and streamlined bookkeeping. It's an integral part of the financial mechanism in the construction industry.

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