Free client-side construction tool
Free AIA-Style Pay-App Retainage Calculator
Estimate completed work, stored materials, retainage, and current payment due without signup. The calculation runs in your browser and does not send your project figures anywhere.
G702-Style Summary Breakdown
Tired of GC billing rejections and spreadsheet errors?
Get your monthly pay-application package, Schedule of Values reconciliation, and retainage schedules reviewed before submission.
Request a free first-project preflight reviewPay-App Billing Guide
A short reference for commercial specialty subcontractors preparing monthly progress billing. Always confirm the final package against the subcontract, GC instructions, and project platform requirements.
How does the retainage estimate work?
The calculator adds approved change orders to the contract sum, combines prior and current-period work, and adds presently stored materials. It applies the completed-work and stored-material retainage rates separately, then subtracts previous certificates to estimate the current payment due.
Why do pay applications get rejected?
Common problems include SOV arithmetic that does not tie out, retainage applied at the wrong rate, approved change orders missing from the current billing, duplicate backup, and previous certificates not being deducted correctly. GC-specific requirements in Textura, Procore, GCPay, or another portal can add another review layer.
Does this calculator transmit project figures?
No. The calculation runs in your browser and does not send the figures to a server. Optional device storage is off unless you select "Remember values on this device." Do not enter information that your project rules prohibit you from using in a browser.
Independent construction billing support
Rollan Abdalov | Oak Point, Texas | abdal@rollanai.info
Pay-app preflight, SOV alignment, and retainage reconciliation for commercial specialty subcontractors. No ERP or portal login required.
Independent estimating tool: This AIA-style calculator is not an official AIA form or payment certification and is not affiliated with or endorsed by the American Institute of Architects. Verify figures against your subcontract agreement, G703 continuation sheet, GC instructions, and supplied Textura, Procore, GCPay, or other billing-platform requirements.