Construction Payment 101: How GCs Get Paid on a Project

Construction payment is more complicated than almost any other industry. Unlike a retail transaction where money exchanges hands in seconds, getting paid on a construction project can take weeks or months — and involves contracts, lenders, inspections, retainage holds, and a paper trail of lien waivers before a dollar moves. Understanding how GCs get paid on a construction project isn't just useful — it's fundamental to running a profitable contracting business and protecting yourself from the payment disputes that derail so many projects.

This guide breaks down the entire construction payment process from contract execution to final payment release — including who controls the money, what triggers each payment, and what documentation you need at every step.

The Construction Payment Chain

Every construction project has a payment chain — a hierarchy that determines who gets paid by whom and in what order. Understanding this chain is the foundation of everything else.

The typical payment chain on a private commercial project looks like this:

1. Property Owner / Developer — Controls the project budget. May be financing through a construction lender, which adds another layer of approval to every draw.
2. General Contractor — Contracts directly with the owner. Submits payment applications, receives payment, and is responsible for paying all subcontractors and suppliers on time.
3. Subcontractors — Contract with the GC (not the owner). They perform specific trades — electrical, plumbing, concrete, framing — and submit their own pay applications to the GC.
4. Sub-subcontractors and Suppliers — Contract with subcontractors. They are furthest from the money and have the least visibility into when payment will arrive.

The critical implication of this structure: every party below the GC is dependent on the GC being paid first. And every party below a subcontractor is dependent on that subcontractor being paid first. Delays or disputes at any level cascade down the chain.

This is exactly why mechanics lien rights exist — they give lower-tier parties a direct legal claim against the property itself when payment doesn't flow properly. If you want to understand how those rights work, see our guide on how to handle a mechanic's lien.

How Construction Contracts Structure Payment

Before the first dollar moves, the payment terms are defined in the contract. On most commercial projects, the GC's contract with the owner will specify one of a few payment structures:

Lump Sum (Stipulated Sum)

The GC agrees to complete the project for a fixed total price. Payment is made in progress draws against that fixed amount. Common on well-defined scopes where design is complete before construction begins.

Cost Plus

The owner pays the GC's actual costs plus a fee (either fixed or a percentage). More common on design-build or fast-track projects where the full scope isn't defined upfront. Requires more detailed cost documentation.

Guaranteed Maximum Price (GMP)

A hybrid: the owner pays cost plus fee, but the GC guarantees the total won't exceed an agreed ceiling. Any overrun above the GMP is the GC's problem. Any savings below it may be shared between the owner and GC depending on contract terms.

The contract also defines the draw schedule — how often payment requests can be submitted, what triggers each payment, and what documentation is required.

The Draw Schedule: How Progress Payments Work

On virtually every commercial construction project, the GC doesn't get paid in one lump sum at the end. Payment is made in periodic draws — typically monthly — tied to verified progress.

Here's how a standard draw cycle works:

Step 1: The GC Submits a Schedule of Values

Before the project starts, the GC submits a Schedule of Values — a breakdown of the total contract price by cost category or trade (foundation, framing, MEP rough-in, etc.). This becomes the reference point for all future payment applications. Each line item gets its own percentage-complete tracking throughout the project.

Step 2: Monthly Pay Application

Each month (or billing cycle), the GC submits an Application for Payment — commonly called a "pay app" — to the owner or owner's representative. The pay app shows:

• The percentage of each Schedule of Values line item completed since the last draw
• The dollar amount being requested for the current period
• The total amount billed to date versus the original contract value
• Retainage being withheld
• The net amount due after retainage

Step 3: Architect or Owner's Rep Review

The architect (or owner's representative) reviews the pay app and either certifies the amount as accurate or sends back a modified certification. On lender-financed projects, the lender's inspector may also conduct an on-site progress inspection before approving the draw.

This is where disputes often start. An architect who disagrees with the GC's progress percentages can reduce the certified amount — sometimes significantly — which creates a gap between what the GC billed and what gets paid.

Step 4: Lien Waivers Are Exchanged

Before or simultaneous with payment, the owner will require the GC to provide a lien waiver — typically a conditional progress lien waiver for the amount being paid. The GC, in turn, requires the same from every subcontractor being paid in that draw cycle.

This is the step where most GCs have operational breakdowns. Tracking which subs have been paid, which waivers have been collected, and which are still outstanding across a 20-sub project is genuinely difficult to manage manually. Understanding what a lien waiver actually is — and the difference between conditional and unconditional — is critical before you sign or collect a single one.

Step 5: Payment Is Released

Once the pay app is certified and waivers are collected, the owner releases payment. On most commercial projects, the contract specifies a payment window — typically 7 to 30 days after certification.

Retainage: The Money You Earn but Don't Get Yet

Retainage is one of the most important — and most frustrating — aspects of construction payment. On almost every commercial project, the owner withholds a percentage of each progress payment (typically 5–10%) as a form of performance insurance. That money accumulates throughout the project and is theoretically released at substantial completion.

On a $3M project with 10% retainage, by the time you reach substantial completion, the owner is holding $300,000 of your earned money. That's real working capital tied up in a project that's already 90% done.

The GC mirrors this same retainage structure down the chain — withholding retainage from sub payments at the same rate (or sometimes a higher rate) that the owner withholds from the GC.

When Is Retainage Released?

Retainage release is triggered by specific milestones defined in the contract — most commonly:

• Substantial Completion — The project is usable for its intended purpose, even if a punch list remains. This triggers the bulk of retainage release in most contracts.
• Final Completion — All punch list items are resolved. This typically triggers the final retainage holdback.
• Reduced Retainage Provisions — Some contracts reduce retainage percentage (e.g., from 10% to 5%) once the project reaches 50% completion. Always check the contract language.

At final payment, the GC must typically provide an unconditional final lien waiver before the owner releases the last retainage check — and must collect the same from every subcontractor. This is the most documentation-intensive payment in the project cycle.

Lien Waivers: The Paper Trail That Protects Everyone

Every payment in construction comes with a waiver. Understanding the four types — and when each is appropriate — is non-negotiable for any GC managing a project with multiple subcontractors.

In 12 states — including California, Texas, Florida, Michigan, and Georgia — the law mandates specific statutory waiver forms. Using a non-compliant form in these states can render the waiver unenforceable. See our complete guide on conditional vs. unconditional lien waivers for the full breakdown of when to use each type.

Public Projects: How Payment Works Differently

On public projects (government-funded construction), the payment structure differs in two important ways:

No Mechanics Lien Rights

You cannot file a mechanics lien against government property. Instead, payment protection on public projects runs through the payment bond — a surety bond the GC is typically required to post at the start of the project. Subcontractors and suppliers who don't get paid make a bond claim against that bond rather than a lien against the property.

Prompt Payment Laws

Federal projects are governed by the Prompt Payment Act, which requires federal agencies to pay GCs within 14 days of approval (or pay interest). Most states have their own prompt payment statutes for state-funded projects. These laws also typically require GCs to pay subs within a specified window after receiving payment from the owner.

Common Payment Problems GCs Face

Even when everything is set up correctly, payment problems happen. Here are the most common ones and how they play out:

Slow Pay / Late Certification

The owner or architect delays certifying the pay app. This pushes the entire payment timeline back. Most contracts specify a certification window — if the architect doesn't certify within that window, it may be treated as a deemed approval. Check your contract.

Disputed Progress Percentages

The owner certifies less than the GC billed. This is extremely common. The gap between what the GC thinks is 60% complete and what the architect certifies as 55% complete can mean tens of thousands of dollars held back. Documentation — site photos, daily logs, material delivery records — is your defense.

Retainage Disputes at Closeout

The owner refuses to release retainage citing an incomplete punch list, unresolved warranty issues, or missing closeout documentation. This is the most common final payment dispute. See our full guide on the lien waiver checklist for project closeout to make sure you have everything in order before you submit your final pay app.

Subcontractor Lien Filings

A subcontractor who wasn't paid files a mechanics lien against the property — even if the GC received payment and simply failed to pay that sub. The owner now has a cloud on title and may withhold further payment from the GC. This is why collecting lien waivers from every sub at every draw is so critical — not just for the owner's protection, but for yours.

The Final Payment Process

Final payment is where most of the project's documentation converges. Before an owner releases the final retainage check, expect to provide:

• Unconditional final lien waiver from the GC
• Conditional or unconditional final lien waivers from every subcontractor and supplier with lien rights
• Certificate of Substantial Completion
• As-built drawings
• Equipment warranties and O&M manuals
• Final inspection sign-offs and certificate of occupancy
• Consent of surety (if a performance bond is in place)

Missing any one of these can delay final payment. The lien waivers are almost always the bottleneck — specifically, tracking down subs who have already moved on to the next job and aren't responsive about signing final waivers.

Frequently Asked Questions

How long does it take for a GC to get paid after submitting a pay app?

It depends on the contract and the state. Most private commercial contracts specify payment within 7 to 30 days after the architect certifies the pay app. On AIA contracts, the default is 7 days after certification. Many states have prompt payment laws that impose their own deadlines — typically 28 to 35 days from when the pay app is submitted. If those deadlines aren't met, interest may accrue automatically.

What happens if an owner refuses to pay a GC?

The GC has several options: first, file a mechanics lien against the property (in most states, this requires a preliminary notice to have been served earlier in the project). Second, pursue contractual dispute resolution — most construction contracts require mediation before arbitration or litigation. Third, if a payment bond is in place, make a bond claim. The specific deadlines for each remedy are state-specific and can be tight — typically 60 to 90 days from last furnishing to preserve lien rights.

Does a GC have to pay subs before getting paid by the owner?

No — and this is a common misunderstanding. GCs are not legally required to pay subcontractors before receiving payment from the owner unless the contract contains a "pay when paid" or "pay if paid" clause. A "pay when paid" clause makes owner payment a timing condition — the GC pays the sub after receiving payment from the owner. A "pay if paid" clause is stronger — it can transfer the risk of owner nonpayment entirely to the sub. Whether these clauses are enforceable varies by state.

What is a Schedule of Values and why does it matter for getting paid?

A Schedule of Values is the breakdown of the contract price by line item — essentially a roadmap for billing throughout the project. It matters because every progress payment is based on the percentage complete for each line item on that schedule. If you front-load the schedule (assigning disproportionately high values to early-completing items), you get paid more early in the project. Owners and architects scrutinize schedules carefully for front-loading and will often push back before approving. A well-structured, defensible Schedule of Values is foundational to getting paid accurately on every draw.

What is retainage and how much is typically withheld from GC payments?

Retainage is a percentage of each progress payment that the owner withholds as a performance guarantee. The most common rates are 5% and 10%. On a $5M project at 10% retainage, the owner holds $500,000 until substantial completion. Some contracts reduce retainage to 5% once the project hits 50% completion. Most states have retainage statutes that cap the maximum rate or dictate release timing on public projects — private projects are governed entirely by contract terms.