Progress Billing in Construction: How Contractors Get Paid in Stages

Progress billing is a construction invoicing method where a contractor bills in stages as work gets done, instead of sending one invoice at the end of the job. Each pay application is built from a schedule of values, priced to the percentage of work completed, minus retainage held until closeout. 

It keeps cash moving so contractors can pay subs and buy materials mid-project. In practice, the money doesn’t move on the math alone because payment releases only when the lien waivers tied to that billing period are collected, which is where contractors on Built cut waiver turnaround to under four minutes.

What Is Progress Billing?

Progress billing is invoicing in stages as work is completed rather than billing once at the end of a project. Instead of waiting months for a single lump-sum payment, you submit a pay application each billing period for the portion of the contract you’ve finished. The owner pays against that application, you pay your subs, and the project keeps moving.

It’s the standard on almost every commercial construction job because nobody can float a multimillion-dollar project on their own balance sheet until closeout. Progress billing spreads risk across the schedule and keeps every party paid on the work already in place.

How Progress Billing Works

Progress billing works by tying each payment to measured completion against a fixed contract breakdown. That breakdown is the Schedule of Values (SOV), a line-item list that assigns a dollar amount to every scope of work in the contract. Each billing period, you report what percentage of each line item is complete, and the pay application prices the work accordingly.

Most commercial projects run this through the American Institute of Architects (AIA) billing format. The AIA G702 (Application and Certificate for Payment) is the summary cover sheet, and the G703 (Continuation Sheet) carries the line-by-line SOV detail. The G703 shows scheduled value, work completed this period, work completed to date, stored materials, and retainage for every line.

This guide to how AIA G702 and G703 pay applications work walks through the forms. The AIA also publishes its own G702-1992 instructions.

How to Calculate a Progress Billing

You calculate a progress billing line item by line item, then total the application. For each line on the schedule of values, work through the following:

1. Take the scheduled value of the line item.
2. Multiply it by the percentage of that work completed in the period.
3. Add the value of materials stored on site but not yet installed.
4. Subtract retainage.
5. Sum every line, and the result is the payment due for that period.

A quick example. If a concrete line item carries a scheduled value of $200,000 and you’ve completed 40% this period, that’s $80,000 of earned work. At 10% retainage, you hold back $8,000 and bill $72,000 on that line. Do that across every line, and the G703 rolls up into the G702 total.

Manual pay-app data entry carries a 3% to 5% error rate, and a single transposed number resets the owner’s review clock. For the withholding side of the math, here’s what retainage is in construction. Procore’s contractor’s guide to AIA billing covers the supporting documents an owner expects with each application.

Why Progress Billing Stalls (and It Isn’t the Math)

The calculation is the easy part. Progress bills stall on paperwork, specifically the sub lien waiver that hasn’t come back.

Your progress bill can become slow because a single sub hasn’t signed a waiver.

Owners release payment against a clean pay application, and a clean application includes signed lien waivers from the subs who worked that period. If you miss one, the entire billing cycle waits. Built Research found in April 2025 that 70% of contractors regularly face delayed payments. Billing cycles slip two to four weeks when a single sub hasn’t returned a waiver.

One lien event on a project costs between $50,000 and $500,000 to resolve. That waiver-to-payment link, covered in how lien waivers and payment are connected, is what owners enforce before they cut a check.

Picture a commercial GC on a project with 15 subcontractors and a 30-day billing cycle. Fourteen waivers are signed and in the file. The drywall sub is on vacation, and his waiver sits unsigned.

The controller who owns that billing deadline now spends the last three days of the month calling, emailing, and re-sending a single PDF. The owner won’t process the application until every waiver clears.

Lien Waivers and the Progress Billing Cycle

A lien waiver is a signed document. In it, a contractor or sub gives up the right to file a mechanic’s lien in exchange for payment. Two kinds matter to a progress bill.

A conditional waiver takes effect only once payment actually clears, so it’s safe to sign when you submit the application. An unconditional waiver takes effect the moment it’s signed, so a sub should generally sign it only after the money lands.

Every tier has to participate. The sub receives a waiver request tied to the billing period, signs for the amount being paid, and returns it. Only then can the GC close the package to the owner. One unsigned lower-tier waiver holds the tier above it, which holds the whole application.

The GC ends up accountable for paperwork it doesn’t physically control, since the signature comes from someone else’s office. Lien deadlines and statutory waiver forms vary by state. Treat the state-specific rules as a question for your counsel, and keep your firm ground on AIA standards and the conditional-versus-unconditional distinction. For the mechanics across project types, here’s how lien waivers work in construction.

How to Keep Progress Billing Moving

The teams that get paid on time treat waiver collection as part of the billing workflow instead of a scramble at the deadline. A few practices keep the cycle moving:

• Request waivers the day you draft the application, not after.
• Match every waiver to its billing period and amount so nothing gets rejected on review.
• Track waiver status by sub in one place, not an inbox.
• Confirm sub bank details before payment so the funds don’t bounce back.

There’s a relationship reason to move fast too. Subs inflate their bids by an average of 8% to protect against slow payment. So the GC who pays quickly earns better pricing and first call on the best trade partners.

A president or owner watching margin and repeat crews feels this directly. Faster sub payments keep the strongest subs coming back, which wins the next job. If manual tracking is where your cycle breaks, Built can automate lien waivers and payments so the collection step stops holding your bill.

How Built Helps Contractors Get Paid on Progress Bills

Built automates your lien waivers and payments so the paperwork stops gating your progress bill. You request waivers, subs sign, and payment goes out over ACH (Automated Clearing House), all tracked against the billing period in one place. Subs don’t need an account. They get an email and sign on their phone, which is how adoption reaches more than 85% on live projects.

Setup runs about 48 hours, not months, so the first billing cycle after go-live already runs cleaner. There’s no need to hire another person to chase paper. The results show up in payment speed. Subcontractor payments move 50% or more faster once collection and payment sit in one workflow. 

Built is the front door to your ERP, pushing clean, approved payments downstream to QuickBooks, Sage, or Vista.

If you run Procore, Built adds the piece Procore doesn’t. Procore handles your pay applications, and Built automates the lien waivers and payments that release them. Built plus Procore closes the gap between billing and getting paid.

Ready to stop chasing waivers before the billing deadline? Request a demo.

Progress Billing FAQs

What is the meaning of progress billing?

Progress billing is invoicing in stages as work is completed on a project, rather than billing once at the end. It ties each payment to how much of the contract is done, measured against a schedule of values. It’s standard on construction projects because it keeps cash flowing to contractors and subs throughout the job.

How do you calculate progress billing?

Take the value of each line item on the schedule of values, multiply by the percentage of that work completed in the billing period, add the value of stored materials, then subtract retainage. The total across all line items is the current payment due. AIA G702 summarizes it and G703 shows the line-item breakdown.

What is the difference between progress billing and percentage of completion?

Progress billing is how you invoice a client in stages. Percentage of completion is an accounting method for recognizing revenue as work is performed. A single pay application can drive both the billed amount and the revenue recognized for the period.

Do you need lien waivers for progress billing?

On most projects, yes. Owners and general contractors typically require signed lien waivers tied to each payment before releasing funds, and many states have statutory waiver forms. A missing waiver from one sub can hold up the entire billing cycle.

When do you get paid on a progress bill?

After the pay application is submitted, reviewed, and the required lien waivers are collected. That’s often where the delay lives. A single sub who hasn’t returned a waiver can stall the whole cycle.