What a progress payment is

A progress payment is a partial payment made during a project—not at the end. Instead of waiting until work is finished to pay the full amount, the payer sends money at set intervals as the work moves forward. In construction, this might mean paying when the foundation is complete, then again when framing is done, then when the roof is on. In software development or manufacturing, it might mean paying when certain milestones are reached.

Progress payments exist because large projects tie up money and time. A contractor who has to wait six months to be paid for materials and labor they bought today would need to borrow money or stop work. Progress payments let the contractor keep going without that financial strain. The payer, in turn, doesn't hand over the full amount upfront—they pay as they see work actually happen.

The payment schedule is written into the contract before work starts. It specifies what triggers each payment, how much each one is, and when it's due. A typical schedule might be 25 percent at each of four milestones, or 20 percent monthly for five months. The exact breakdown depends on the project type and what both sides agree to.

Key Takeaways

  • Progress payments are scheduled partial payments made as work moves forward, not a lump sum at the end.
  • The payment schedule is set in the contract before work begins and tied to specific milestones or completion percentages.
  • Contractors use progress payments to cover materials and labor costs without waiting for the full project to finish.
  • Payers often hold back a small percentage (called retainage) until final inspection, to may support work quality and completion.
  • Progress payments require documentation—invoices, proof of work, or inspection sign-offs—before money is released.

How the payment schedule is structured

The contract lays out the payment schedule before any work begins. It names the total project cost, divides it into stages, and says what has to happen before each payment is released. A home renovation contract might say: 30 percent when the contract is signed, 40 percent when framing and electrical rough-in are complete, 20 percent when drywall and painting are done, and 10 percent on final walkthrough. A commercial construction project might use percentages of work completed instead—25 percent when the site is prepared, 50 percent when the structure is up, 75 percent when systems are installed, 100 percent on final inspection.

The contractor submits an invoice or progress report for each stage, often with photos or inspection reports as proof. The payer (or their representative, like an architect or project manager) verifies that the work described actually happened and matches the contract. Only then is the payment released. This verification step protects both sides: the contractor gets paid for real work, and the payer doesn't pay for work that was never done or was done poorly.

Most contracts also include retainage—a percentage (often 5 to 10 percent) held back from each payment and released only after the entire project is finished and inspected. Retainage is insurance. If the contractor abandons the job or the final work is substandard, the payer has money left to hire someone else to finish or fix it.

When progress payments are used

Progress payments are standard in construction—residential, commercial, and civil engineering projects all use them. A homeowner building a house, a developer building an office building, and a city building a bridge all make progress payments. They are also common in manufacturing (paying as units are produced), software development (paying as features are completed), and any project where the work takes weeks or months and requires upfront spending on materials or labor.

Progress payments are less common in small, quick transactions. If you hire someone to paint one room and they finish in a day, you might pay them when they're done. But if you hire them to renovate your entire house over four months, progress payments make sense for both of you. The contractor doesn't have to finance the whole job out of pocket, and you don't have to hand over all the money before seeing results.

The difference between progress payments and other payment types

A lump-sum payment is the opposite: you pay the full amount when the work is done. This shifts all the financial risk to the contractor, who has to fund the entire project and wait for payment. A cost-plus payment is different again—you pay the contractor's actual costs (materials, labor, equipment) plus an agreed percentage or fee. With cost-plus, the contractor doesn't have to estimate the total cost upfront; they just document what they spent and bill you for it plus their markup.

Progress payments sit in the middle. They reduce the contractor's financial burden compared to lump-sum, but they require the payer to trust that work is actually happening as described. They are more predictable than cost-plus because the total is fixed in the contract, not dependent on how much materials end up costing.

What triggers each payment

The contract specifies what has to happen before each payment is released. Common triggers include: completion of a specific phase (foundation, framing, electrical), reaching a percentage of total work (50 percent complete, 75 percent complete), delivery of materials or equipment, or passing an inspection by a third party. Some contracts use calendar dates instead—pay on the first of each month if work is on schedule—though this is riskier because it doesn't tie payment to actual progress.

The contractor usually submits a request for payment (called a draw request or progress invoice) when they believe a milestone is met. They include documentation: photos of the completed work, a signed inspection report, a list of materials delivered, or an affidavit stating the work is done. The payer or their representative inspects the work, verifies it matches the contract, and approves the payment. If the work doesn't match—if the foundation has cracks, or the electrical doesn't meet code—the payer can withhold payment until it's fixed.

Timing and cash flow for contractors

Progress payments help contractors manage cash flow. A contractor buying materials for a large project might spend $50,000 in the first month. Without progress payments, they would have to borrow that money or use their own reserves and wait until the project ends to be repaid. With progress payments, they might receive $50,000 when the first milestone is met, which covers what they spent and lets them buy materials for the next phase.

The timing between when a contractor submits a draw request and when they receive payment varies. Some contracts say payment is due within 7 days of approval; others say 30 days. If the payer is slow to inspect or approve, the contractor's cash flow suffers. This is why the contract should specify not just the payment amount but also the timeline for inspection and payment. A contractor who has to wait 60 days to be paid for work completed in week two is effectively financing the project themselves.

Retainage and final payment

Retainage is the portion of each progress payment that is held back. If the contract says 10 percent retainage and the first milestone payment is $50,000, the contractor receives $45,000 and the payer holds $5,000. This continues for each payment. At the end of the project, after final inspection and sign-off, the payer releases all the retained amounts. In the example above, if there were four milestones, the contractor would receive $20,000 in retainage at the end (10 percent of $50,000 × 4).

Retainage protects the payer. If the contractor disappears before finishing, or if the final work is defective, the payer has money to hire someone else to complete or fix it. Retainage also incentivizes the contractor to finish the job and fix any problems—they don't get their full payment until the work is truly done. However, retainage can strain a contractor's cash flow, especially on large projects. Some jurisdictions have laws limiting how much can be retained or requiring it to be released within a certain time after project completion.

Documentation and verification

Progress payments require paperwork. The contractor submits a draw request or progress invoice stating which milestone is complete and requesting payment. They attach evidence: photographs of the work, inspection reports signed by a third party (like an architect or engineer), delivery receipts for materials, or a sworn statement that the work is done. The payer or their representative inspects the work in person to verify it matches the contract and is of acceptable quality.

This verification step is crucial. It prevents disputes later. If the payer approves a payment without inspecting, and the work turns out to be defective, they may have already paid for something they can't use. If the contractor submits a draw request without documentation, the payer has no way to verify the work actually happened. Clear documentation protects both sides and keeps the project moving.

Frequently Asked Questions

What happens if the contractor doesn't complete a milestone on time?

The payment is withheld until the work is done. Some contracts include penalty clauses (the contractor pays a daily fee for delays) or allow the payer to hire another contractor to finish the work and deduct the cost from the contractor's final payment. The contract should specify what happens in case of delay before work begins.

Can the payer refuse to pay if they think the work is poor quality?

Yes. The payer can withhold payment until the work meets the contract standards. The contractor then has to fix the defects before payment is released. If the contractor refuses to fix it, the payer may hire someone else and deduct the cost from the contractor's final payment or retainage.

Is retainage the same as a security deposit?

No. A security deposit is paid upfront by the payer to the contractor as a may provide the payer will pay. Retainage is money withheld from the contractor's payments as a may provide the contractor will finish the work properly. They serve opposite purposes.

What if the project is cancelled halfway through?

The contract should specify what happens. Typically, the contractor is paid for work completed up to that point, minus any retainage. The payer may also owe the contractor for materials already purchased and labor already performed, depending on the contract terms.

How do progress payments work if the project runs over budget?

If the total cost increases, the contract usually has to be amended in writing before extra work begins. Both sides sign the change order, which increases the total contract price and may adjust the payment schedule. Without a signed change order, the contractor cannot demand extra payment for work beyond the original scope.