The Payment Terms That Decide Whether You Get Paid
Quick answer: Construction payment terms are the contract provisions that govern when and whether a contractor gets paid: retainage withheld from each progress payment, pay-when-paid and pay-if-paid clauses that tie payment to the owner funding the general contractor, back charges deducted for another party's work, and milestones such as substantial completion that release money. Each one moves cash in time, and together they explain most contractor cash-flow problems.
Key Takeaways
- ●Almost every construction cash-flow problem traces back to a handful of contract terms, not to margin. The work was priced correctly; the money arrives late by design.
- ●Retainage, pay-when-paid clauses and back charges all delay or reduce payment for work already completed and accepted.
- ●Milestone terms — notice to proceed, substantial completion, final completion — start and stop clocks that contracts attach money to.
- ●The terms are negotiable far more often than contractors assume, and the time to negotiate them is before signing, not when the payment is 90 days late.
Why a Glossary Is Worth Having
Most contractors who struggle with cash flow are not underpricing work. They are signing contracts whose payment mechanics they have not fully read, and then absorbing the consequence for the length of the job.
The vocabulary below is the machinery. Each term describes a specific way money is held back, conditioned, deducted or released, and each one is a lever that was set during contract negotiation and cannot be moved afterwards.
Read them as a checklist against your own contract rather than as definitions. The question is not what retainage means; it is what your retainage percentage is, when it reduces, and what specifically has to happen before the balance is released.
The Terms, Defined
These are the provisions that most commonly determine when a contractor gets paid. Each links to a fuller explanation.
| Term | What it does | Effect on cash |
|---|---|---|
| Retainage | Withholds a percentage of each progress payment until completion | Holds 5–10% of contract value for the length of the job |
| Pay-when-paid | Delays subcontractor payment until the GC is paid by the owner | Adds the owner's payment cycle to yours |
| Pay-if-paid | Makes owner payment a condition of subcontractor payment | Transfers owner non-payment risk down the chain |
| Back charge | Deducts the cost of another party's remedial work from your payment | Reduces payment, often without prior agreement |
| Deductive change order | Removes scope and reduces the contract sum | Cuts revenue, sometimes below the cost already incurred |
| Notice to proceed | Formally authorises work to begin and starts the contract clock | Starts the schedule against which delays are measured |
| Substantial completion | Marks the point the owner can occupy and use the work | Triggers retainage reduction and ends most delay damages |
| Certified payroll | Weekly wage reporting required on most public projects | Non-compliance withholds payment entirely |
| T&M ticket | Records labour, material and equipment on unpriced work | Unsigned tickets are the most commonly rejected claim |
The Pattern Underneath Them
Read together, these terms all do one of three things. They delay payment, they condition payment on an event outside your control, or they reduce payment for something attributed to you after the fact.
Retainage and pay-when-paid delay. Pay-if-paid conditions. Back charges and deductive change orders reduce. Notice to proceed and substantial completion are the clock-setting events that the other terms hang from.
That framing is useful because it tells you which defence applies. Delay is a financing problem, and the answer is knowing the schedule precisely enough to plan around it. Conditioning is a contract negotiation problem, and the answer is at signature. Reduction is an evidence problem, and the answer is documentation created at the time the work happened, not reconstructed when the deduction appears.
Where This Becomes an Operations Problem
Every one of these terms depends on records that are created in the field, by people whose job is not paperwork. A back charge is defeated by a daily report and a photograph. A T&M claim is paid because a superintendent signed a ticket on the day. Retainage is released because the punch list was closed and documented.
The contract language sets the rules. Whether you win under those rules is decided by whether the evidence exists, and evidence that has to be assembled after a dispute starts is usually evidence that no longer exists.
That is the practical case for capturing field records as work happens rather than reconstructing them at month-end: not tidiness, but the fact that every term in this glossary is ultimately settled by who can prove what.
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Retainage Rules by State
California's Senate Bill 61 caps private retainage at 5% starting 2026. A state-by-state look at what's actually withheld, when it comes back, and the paperwork that gets it back faster.
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Pay-When-Paid
Pay-when-paid delays a subcontractor's payment; pay-if-paid can eliminate it. How to tell which clause you signed, and why enforceability varies by state.
Back Charges
A back charge deducts the cost of fixing your work from your payment. What makes one valid, what makes one contestable, and the records that decide it.
Substantial Completion
Substantial completion is the point the owner can occupy and use the work for its intended purpose. What it triggers, and why the date is worth arguing about.
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