Construction Payment Terms Explained: Net 30, Pay-When-Paid, and Getting Paid Faster

Construction payment terms set the rules for when, how, and whether you get paid. The big ones: Net 15/30 (days until payment is due), pay-when-paid vs. pay-if-paid (who eats the risk when money up the chain stalls), progress billing (paying for work as it's completed), and retainage (a slice held back until the end). Read them before you sign.

This is general information for trade businesses, not legal, tax, or accounting advice. Contract language and lien rights vary by state, so run anything load-bearing past a construction attorney.

What "Net 30" actually means

"Net 30" means the full invoice balance is due 30 days after a defined trigger — usually the invoice date, but sometimes the delivery date or the date work was accepted. Net 15 shortens that window; Net 60 and Net 90 stretch it. The number isn't the whole story. What matters just as much is what starts the clock and what counts as paid.

Common variations you'll see:

Net 15 / Net 30 / Net 60 — days until the balance is due.
2/10 Net 30 — a discount (here, 2%) if paid within 10 days; otherwise full balance at 30. As the one receiving payment you may be asked to offer this; as the one paying suppliers it can be free money.
Due on receipt — payment expected immediately. Rare for subs, common for material suppliers.
Net 30 from approval — the clock starts only after the GC or owner approves the pay application, which can quietly add weeks.

The trap is the trigger date. "Net 30 from invoice" and "Net 30 from approval of the monthly pay app" can be a month apart in real life. Pin down the trigger in writing.

Pay-when-paid vs. pay-if-paid

These two clauses look almost identical and mean very different things. Both push the risk of the owner not paying down onto subcontractors — but to different degrees.

Pay-when-paid is generally treated as a timing clause. The GC can wait a reasonable time to pay you, but if the owner never pays, the GC still owes you. You get paid eventually; you just may wait.
Pay-if-paid is a condition clause. Payment from the owner is a condition that must happen before the GC owes you anything. If the owner defaults, you may be left holding the loss.

Whether a pay-if-paid clause is even enforceable depends heavily on your state — some limit or void them, others require very specific "condition precedent" language. Practical takeaways for a sub:

Read for the words "condition precedent." That language usually signals pay-if-paid.
Negotiate pay-if-paid down to pay-when-paid, or add an outside time limit ("paid within X days regardless of owner payment").
Protect your lien and bond claim rights — those often survive a payment clause and are your real backstop.

A clear written agreement that spells out the payment trigger and what happens on non-payment is your first line of defense. If you don't have a baseline document, a plain-language subcontractor agreement template is a reasonable starting point to adapt.

Progress billing and the schedule of values

Most commercial work isn't paid in one lump at the end. It's billed in stages through progress billing, usually monthly, against a schedule of values (SOV) — a line-item breakdown of the contract by task or phase.

Each billing period you submit a pay application (often the AIA G702/G703 format) showing percent complete per line, work completed this period, materials stored, and the amount now due. Get the SOV right up front:

Front-load fairly, not deceptively. Loading early line items helps cash flow, but a GC who spots padding will scrutinize every future app.
Bill for stored materials where the contract allows it — that's cash you've already spent.
Submit on time, every time. Miss the monthly cutoff and you wait a full cycle. The pay-app deadline is sacred.

Retainage: the money held until the end

Retainage (or retention) is a percentage of each progress payment the owner or GC holds back as a guarantee you'll finish and fix punch-list items. A common range is 5–10%, but the exact figure and rules vary by contract and state.

The catch: retainage accumulates across the whole job and is released only at substantial completion or final acceptance — sometimes long after your crews have left. On a large job, your entire profit margin can sit in retainage for months. Ways to manage it:

Negotiate retainage reduction at the halfway point (for example, dropping from 10% to 5%).
Ask for early release on your scope once your portion passes inspection, rather than waiting for the whole project.
Track retainage as a separate receivable so it never gets forgotten in the closeout shuffle.

Practical ways trade businesses get paid faster

Payment speed is mostly about removing friction and excuses. Tighten the process and the checks come sooner.

Invoice immediately and accurately. A clean invoice with PO number, correct SOV lines, and required backup is one a clerk can pay without kicking it back.
Send lien/preliminary notices on schedule. Where required, these protect your rights and signal you track payment closely.
Keep compliance docs current. Many payments stall on an expired COI or a missing W-9. Handling a certificate of insurance request proactively keeps you off the hold list.
Define the payment trigger in writing before work starts — invoice date, not approval date, wherever you can negotiate it.
Bill stored materials and progress promptly instead of waiting for the job to end.
Offer an early-pay discount (like 2/10 Net 30) only when the math beats your cost of waiting.
Document everything — signed change orders, daily logs, photos. Disputed extras are unpaid extras.

The recurring theme: paperwork delays cause more late payments than bad-faith owners do. Idle crews waiting on payment are a margin killer; if you want to put a number on it, the crew downtime calculator shows what stalled cash and stalled labor cost together.

Quick answers

What does Net 30 mean in construction? The full invoice balance is due 30 days after a defined trigger — usually the invoice date, but sometimes the approval or delivery date. Confirm which trigger applies.

What's the difference between pay-when-paid and pay-if-paid? Pay-when-paid delays your payment but you still get paid even if the owner defaults. Pay-if-paid can make owner payment a condition of getting paid at all, shifting the risk to you. Enforceability varies by state.

What is retainage? A percentage (often 5–10%) held back from each progress payment and released at substantial or final completion as a guarantee the work is finished correctly.

What is progress billing? Billing in stages against a schedule of values as work is completed — usually monthly via a pay application — instead of one payment at the end.

How can contractors get paid faster? Invoice immediately and accurately, keep COIs and W-9s current, send required notices, define the payment trigger in writing, and bill progress and stored materials promptly.

The bottom line

Payment terms aren't boilerplate — they decide your cash flow and your risk. Learn to read Net terms, distinguish pay-when-paid from pay-if-paid, structure your schedule of values, and manage retainage, and you'll spend far less time chasing money. When you staff or cover work on SKILLS, every accepted Coverage Offer becomes a Work Agreement — an immutable, audit-logged record of who agreed to what — so the terms are clear before anyone's boots hit the site. Join the waitlist to get early access.