The Payment Chain, Visualized
Every construction project has a payment chain. It looks like this:
Owner → General Contractor → Subcontractor → Supplier
Money starts at the top. It flows down. At each level, someone holds it a little longer before passing it along. By the time it reaches the material supplier at the bottom, weeks or months have passed.
Risk flows the opposite direction. It starts at the bottom and compounds upward. The supplier has the least control over project outcomes, the least visibility into payment disputes upstream, and the longest wait — yet carries the most financial exposure of any party in the chain.
This isn't a flaw in the system. It is the system. And if you're a construction material supplier or distributor, understanding exactly how it works — and where your protections break down — is the difference between managing risk and being blindsided by it.
Who Gets Paid and Who Waits
The data on payment timing in construction is stark, and it's not distributed evenly across the chain.
General contractors are 20 times more likely than material suppliers to report always getting paid on time. They're six times more likely to get paid within 30 days.
Only one in 100 material suppliers reports always receiving payment on time. 60% of material suppliers wait more than 30 days to get paid. Over half charge interest on late payments — and most of them never collect that interest.
40% of material suppliers cite general contractor mismanagement as the primary source of payment problems. Not the owner. Not the subcontractor. The GC — the party directly above the sub who's supposed to be managing the flow of money down the chain.
The average DSO in construction is 83 days — nearly a month longer than any other industry. For material suppliers, who sit at the bottom of the payment chain, the real number is often longer.
How "Pay-When-Paid" Shifts Risk to You
Most construction contracts include some version of a "pay-when-paid" clause. The language varies, but the effect is the same: the party above you in the chain doesn't have to pay you until they get paid by the party above them.
In practice, this means the general contractor's payment dispute with the owner — a dispute you have no visibility into and no control over — directly determines whether your invoices get paid.
If the owner holds a pay application because of a dispute with the GC, the GC delays the sub. The sub delays you. A disagreement between two parties you've never spoken to is now the reason your $35,000 in outstanding invoices is sitting at 90 days.
Pay-when-paid clauses are standard in the industry. They're legal in most states. And they effectively transfer the financial risk of every upstream dispute to the bottom of the chain — where the supplier is least equipped to absorb it.
Some states distinguish between "pay-when-paid" (a timing mechanism — you'll get paid eventually) and "pay-if-paid" (a condition — if the GC doesn't get paid, neither do you). The distinction matters legally, but in practice, both create the same cash flow problem for the supplier waiting for a check.
What Most Suppliers Don't Know About Lien Rights
Lien rights are a material supplier's primary legal protection for getting paid on construction projects. A mechanics lien creates a security interest in the property where your materials were used — giving you leverage that an unsecured invoice doesn't provide.
But lien rights in construction are not automatic, not universal, and not simple. Here's what trips up most suppliers:
Preliminary Notice Requirements
In most states, material suppliers must file a preliminary notice at the beginning of a project to preserve their right to file a lien later. The deadlines vary dramatically by state — from as short as 8 days in Oregon to 30 days in others. Some states require notice within 20 days of first delivery.
Miss the deadline and your lien rights may be gone entirely. Not reduced. Not delayed. Gone. You can ship $100,000 in materials to a project and have zero legal recourse if the contractor doesn't pay — simply because you filed your preliminary notice one day late.
Many suppliers skip preliminary notices because the process feels burdensome. Others file inconsistently — on large projects but not small ones. This is a mistake. The projects you don't file on are the projects where you're most exposed.
The Supplier-to-Supplier Gap
This is the part of lien law that catches suppliers off guard. In many states, if you supply materials to another supplier — rather than directly to a contractor or subcontractor on the project — you have no lien rights at all. Regardless of the dollar amount. Regardless of whether your materials ended up on the project.
If you sell pipe fittings to a plumbing supply company, and that company sells them to a plumber on a construction project, your position in the chain may be too far removed to qualify for lien protection. The plumbing supply company has rights. You may not.
This gap exists in enough states to be a meaningful risk for distributors who sell through intermediaries. If any portion of your revenue goes through other supply companies rather than direct to contractors, you need to understand your state's specific rules on supplier-tier lien rights.
State-by-State Variation
There is no federal lien law. Every state has its own rules, deadlines, notice requirements, and exceptions. A process that protects you in Texas may leave you exposed in California. A preliminary notice that's valid in Florida may not meet the requirements in Oregon.
For any supplier operating across multiple states — or selling to contractors who work across state lines — this creates a compliance challenge that's easy to underestimate. The cost of getting it right is time and paperwork. The cost of getting it wrong is losing your legal protection on a project where you're owed real money.
The Cascading Failure Scenario
Here's how payment chain risk plays out in practice. This isn't hypothetical — variations of this scenario happen to construction suppliers every week.
Month 1. You supply $60,000 in materials to a subcontractor working on a commercial project. The sub has been a reliable customer for two years. You're on NET 30 terms.
Month 2. The 30-day mark passes. No payment. You call the sub's AP clerk. They say the GC hasn't released the pay application yet. "Should be any day now." You wait.
Month 3. Still no payment. You call again. The sub says the owner is disputing part of the GC's application — something about change orders on a different phase of the project. It has nothing to do with your materials. But the GC is holding the sub's payment until the owner releases the full amount. And the sub won't pay you until the GC pays them.
Month 4. The dispute escalates. Now the GC is withholding payment from all subs on the project until the owner issue is resolved. Your $60,000 is now 120 days old. Meanwhile, your upstream suppliers — the ones who sold you the materials you sold to this sub — want their money. Their terms are NET 30, and you're already at 90 days on your payables to them.
Month 5. The sub files for bankruptcy. The GC disputes owing anything because the work was "defective" — a claim that appeared only after the payment dispute. Your $60,000 is now a write-off unless you filed a preliminary notice and have valid lien rights. If you didn't, you're an unsecured creditor standing in line behind banks, bonding companies, and everyone else.
One payment dispute between an owner and a GC — a dispute you never knew about and couldn't have influenced — just cost you $60,000, strained your relationship with your own suppliers, and drained your AR team's time for five months.
Five Protective Measures
You can't change the payment chain. But you can change your position in it.
1. File Preliminary Notices on Every Project — No Exceptions
Not just big projects. Not just new customers. Every project. The administrative cost of filing is minimal compared to the cost of losing lien rights on a project that goes bad. Build it into your standard process so it happens automatically, not when someone remembers.
2. Require Credit Applications Before Extending Terms
Before you ship the first dollar of material to a new customer, get a completed credit application with trade references, bank references, and authorization to pull credit. This isn't just about deciding whether to extend credit — it's about having the documentation you'll need if you ever have to pursue collection.
3. Use Joint Check Agreements on Large Projects
A joint check agreement requires the GC to issue payment checks that name both the subcontractor and the supplier. This gives you direct access to project funds without relying on the sub to pass payment through. Joint check agreements add friction to the payment process, but on projects over $25,000, the protection is worth it.
4. Track Progress Payments at the Project Level
Don't just track what your customer owes you — track where the project is financially. If you know the GC is three pay applications behind, or the owner is disputing work, you have early warning to tighten credit, hold shipments, or accelerate your collection timeline. This is intelligence most suppliers don't gather but should.
5. Know Your Bond Rights on Public Work
Public construction projects are typically bonded — meaning a surety company guarantees payment to suppliers and subcontractors if the contractor defaults. If you supply materials to a public project, you may have a claim against the payment bond even if you don't have lien rights. Federal projects are covered by the Miller Act. State and local projects are covered by state-specific "Little Miller Act" statutes. Know the notice requirements and deadlines for your state.
The State-by-State Cheat Sheet
Preliminary notice deadlines, lien filing windows, and supplier-tier protections vary by state. A single reference document covering the key deadlines and requirements for each state would save suppliers thousands of hours of legal research per year.
We're building that resource now. When it's ready, we'll publish it as a free downloadable guide — no forms, no sales pitch. Check back at payra.com for updates.
The Bottom Line
The construction payment chain isn't going to change. Owners will hold money. GCs will manage it down. Subs will pass the pressure along. And suppliers will be last in line.
But your position in the chain doesn't have to be a disadvantage. The suppliers who understand the structure — who file notices consistently, monitor their exposure by project, tighten terms based on real data, and know their legal rights in every state where they operate — are the ones who get paid.
The payment chain isn't fair. It can be managed. And managing it starts with seeing it clearly.
