Payment Application
The monthly invoice document the contractor submits to the owner requesting a progress payment for completed work.
Definition
A payment application (commonly called a "pay app") is the monthly invoice document the contractor submits to the owner requesting a progress payment for work completed during the billing period. On AIA contracts the pay app uses standard forms G702 (the certificate) and G703 (the schedule of values continuation sheet), which together show the contract sum, work completed to date, retainage, and the amount due this period.
The payment application is supported by lien waivers, conditional and unconditional, from the contractor and from any subcontractors paid in the prior period.
How payment application is used in estimating
Each month the project manager assembles the payment application. The schedule of values is updated with this period’s percent complete on each line, change orders executed since the last application are added, retainage is deducted, prior payments are subtracted, and the net amount due is calculated. The architect reviews and certifies the application, the owner pays, and the cycle begins again the following month.
Estimators should understand the payment application process because the way the schedule of values is structured during preconstruction directly affects how cleanly the project bills. A schedule of values with too few lines makes percent-complete estimation crude and can cause overbilling disputes; a schedule of values with too many tiny lines creates administrative drag without adding precision. The right balance is set during the early submittal of the schedule of values for architect approval.
Common payment application mistakes
Submitting the payment application without supporting lien waivers is the fastest way to delay payment — owners and lenders will simply refuse to process it. Other common errors include math mistakes in the percent-complete calculation, missing change-order line items, and incorrect retainage. Reconciling the cumulative columns to the prior application catches most of these issues. A clean payment application gets paid on time; a sloppy one gets sent back and slows cash flow on the entire project.
Frequently asked questions
Q.What is AIA G702?
AIA G702 is the standard application and certificate for payment form published by the American Institute of Architects. It summarizes the pay app at a contract level and is signed by the contractor, certified by the architect, and used as the owner’s pay authorization.
Q.What is AIA G703?
AIA G703 is the continuation sheet companion to G702. It lists every line of the schedule of values, with this period’s and cumulative percent complete, line value, and amount earned. Together G702 and G703 are the standard pay app on most US commercial work.
Q.How long until a payment application is paid?
Most contracts require payment within 30 days of receipt of an approved application. In practice, with architect review time and owner processing, 45 to 60 days from work performed is a more realistic expectation.
Q.Can a payment application be rejected?
Yes — for missing lien waivers, math errors, overbilling, or work that the architect does not certify as complete. Most rejections are technical and can be corrected and resubmitted within the same billing cycle.
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