We build tools and open reference materials for construction payment workflows, with a focus on AIA-style construction billing, G702 / G703 pay applications, Schedule of Values (SOV), retainage, lien waivers, and progress billing.
Our goal is to make construction billing clearer, more accurate, and easier to manage — both for contractors submitting payment applications and for developers building construction software.
We maintain open, educational resources that document how AIA-style pay applications are commonly structured and calculated.
🔹 AIA Pay Application Toolkit
https://github.com/PayAppPro/aia-pay-application-toolkit
That repository includes:
- Plain-English documentation for G702 and G703
- Realistic CSV and JSON examples
- Pay application schemas
- Billing logic notes (retainage, stored materials, progress vs. final billing)
- Construction billing workflow references
These materials are provided for educational and reference purposes and are not licensed AIA forms.
PayAppPro is a hosted software platform that helps contractors create accurate, consistent AIA-style pay applications and supporting billing documentation.
Key focus areas:
- G702 / G703 pay application workflows
- Schedule of Values (SOV) management
- Change order tracking
- Stored materials billing
- Automated calculations and rollups
- PDF generation and review-ready outputs
LienWaiverPro helps contractors, subcontractors, and suppliers generate and manage construction lien waivers and releases.
Key focus areas:
- Conditional and unconditional lien waivers
- Progress and final waiver workflows
- State-specific waiver support
- Electronic delivery and tracking
- Faster document preparation and review
DailyLogsPro helps subcontractors turn daily field activity into organized, verifiable project documentation.
Key focus areas:
- Construction daily logs and field reports
- Labor, weather, delays, deliveries, and inspections
- Timestamped jobsite photos with captions
- Offline field capture and office review
- Change-order documentation and authorization
- Integration with PayAppPro for approved-change billing
Construction billing problems are rarely about intent — they're usually about:
- Inconsistent math
- Poor structure
- Manual processes
- Missing documentation
- Lack of visibility between detail and summary
We believe good tooling, clear workflows, and well-defined data models solve most of these issues.
All open materials are provided for educational and reference purposes only.
Always follow contract documents, owner requirements, applicable state laws, and licensed AIA form usage rules where applicable.