General contractors ask the same prompt payment act best practices questions again and again. How fast do I need to pay? What happens if the owner pays late? Can I hold retainage until the end? These questions have clear answers rooted in federal and state law. In 2025, the Mechanical Contractors Association of America found that 54% of GCs could not correctly identify the prompt payment deadline in their primary operating state.

This guide answers the questions GCs ask most, with practical guidance for each answer.

How Fast Must a GC Pay Subcontractors?

The answer depends on the project type and location. Federal projects require payment within 14 days of receiving government payment. State deadlines range from 7 to 30 days.

The payment clock starts when the GC receives funds from the owner. Not when the GC deposits the check. Not when the accounting department processes the receipt. The clock starts on the day the money arrives.

In the fastest states (California, Texas, New York, North Carolina, Virginia, Wisconsin), GCs have 7 calendar days. That means invoice review, approval, and payment processing must all happen within one week.

What Happens When a GC Pays Late?

Late payment triggers three potential consequences depending on the state.

Interest penalties. Every state charges interest on late payments. Rates range from 1% per month to 2% per month. Ohio charges 18% annually. These rates are not negotiable and cannot be reduced by contract.

Attorney's fee recovery. Twenty-three states allow subcontractors to recover their attorney's fees when they prevail on a prompt payment claim. This turns a $30,000 late payment into a $50,000 liability once legal fees are added.

Work suspension rights. Twelve states allow subs to stop work after providing written notice of nonpayment. The notice period ranges from 7 to 30 days. A sub who stops work on a critical path trade can delay the entire project.

Consequence	When It Applies	Typical Cost	GC Defense Options
Interest penalties	Automatically at deadline	1-2% per month on late amount	Pay on time; document receipt dates
Attorney's fees	If sub files and wins claim	$10,000-$25,000 per claim	Maintain audit-ready records
Work suspension	After written notice period	$5,000-$50,000 per day of delay	Pay immediately after notice
Bonding impact	At surety review	Higher premiums, reduced capacity	Track and report compliance metrics
Bidding disqualification	On public projects	Loss of project opportunity	Maintain clean payment record

Can a GC Hold Payment Until the Owner Pays?

This is the most misunderstood area of prompt payment law. The answer depends on whether your contract contains pay-if-paid or pay-when-paid language, and whether your state enforces that language.

Pay-when-paid. This language sets a reasonable timeline for payment but does not make owner payment a condition. The GC must pay the sub within a reasonable time regardless of whether the owner has paid. Most courts interpret "reasonable time" as the statutory prompt payment deadline.

Pay-if-paid. This language makes owner payment a condition precedent to the GC's obligation. If the owner never pays, the GC owes nothing. However, many states have invalidated pay-if-paid clauses as against public policy. Courts in these states will enforce payment obligations regardless of the clause.

States that have restricted or invalidated pay-if-paid clauses include California, New York, North Carolina, Illinois, and several others. GCs relying on pay-if-paid provisions should verify their enforceability with construction counsel in each state.

How Does Retainage Release Work Under Prompt Payment Laws?

Most states tie retainage release to the subcontractor's scope completion, not the overall project completion. This distinction catches GCs who hold retainage on all subs until the building receives a certificate of occupancy.

When a sub finishes their scope and passes final inspection, the retainage release clock begins. Most states require release within 30-60 days. Holding retainage beyond that deadline triggers the same interest penalties as late progress payments.

GCs should track retainage release dates for each sub individually. A plumber who finishes in month 4 of a 12-month project should receive their retainage in month 5 or 6. Waiting until month 13 violates the law in most states and creates significant interest exposure.

What Counts as a Valid Reason to Withhold Payment?

GCs can withhold payment without triggering prompt payment penalties in limited situations.

Defective work. If the sub's work does not meet contract specifications, the GC can withhold the cost of correction. The GC must document the deficiency, notify the sub in writing, and give them an opportunity to correct the work before withholding.

Incomplete invoicing. A sub who submits an invoice missing required elements (schedule of values, lien waivers, certified payroll on prevailing wage projects) can have their payment clock paused until they resubmit. The GC must notify the sub of the deficiency within the state's notice period (typically 7-15 days).

Safety violations. Some contracts allow withholding for unresolved safety violations. The withholding must be proportional and documented.

Back-charges. Documented back-charges for damage caused by the sub can be deducted. The GC must provide written notice and cost documentation.

In every case, the GC must pay the undisputed portion of the invoice on time. Withholding the entire payment over a partial dispute is the most common violation.

How Should GCs Handle Prompt Payment on Federal vs. State Projects?

Federal and state projects follow different prompt payment rules, even when the project is in the same state.

Federal projects follow 31 U.S.C. 3901-3907. The GC has 14 days to pay subs after receiving government payment. Interest accrues at the Treasury rate. Retainage is capped at 10% (often 5% in practice).

State public projects follow the applicable state prompt payment statute. Deadlines may be shorter than 14 days. Interest rates may be higher. Retainage caps may be lower.

Mixed-funding projects require careful attention. Federally funded portions follow federal rules. State-funded portions follow state rules. On a highway project funded 80% federal and 20% state, the payment requirements may differ depending on which funding source covers the sub's work.

What Records Prove Prompt Payment Compliance?

Five categories of records form a complete prompt payment audit trail.

Owner payment records. Bank statements showing the date and amount of every owner payment. Wire confirmations or deposit receipts with timestamps.

Subcontractor invoices. Copies of every invoice received, with the receipt date logged. Email timestamps serve as receipt proof for electronic submissions.

Approval documentation. PM approval records with dates. Dispute notices with dates and specific items listed.

Payment records. Check copies, wire confirmations, or ACH receipts showing the payment date and amount. Signed delivery receipts for hand-delivered checks.

Correspondence. All emails and letters related to payment timing, disputes, and resolution. These documents prove good faith in the event of a claim.

Store these records for at least the statute of limitations in your state (typically 4-6 years). Many GCs retain payment records for 10 years as a precaution.

How Do Hold-Harmless Clauses Interact with Prompt Payment?

A hold-harmless clause does not give the GC the right to delay payment. Some GCs attempt to use hold-harmless or indemnification provisions as leverage to withhold payment for alleged damages. Courts have consistently ruled that prompt payment obligations are independent of indemnification rights.

If a sub's work causes damage that triggers the hold-harmless clause, the GC should pay the sub's invoice on time and pursue the indemnification claim separately. Using the hold-harmless clause to justify late payment adds prompt payment penalties on top of the indemnification dispute.

FAQs

Can a sub file a prompt payment claim and a mechanic's lien at the same time? Yes. Prompt payment claims and mechanic's liens are separate legal remedies. A sub can file a lien to secure payment and simultaneously pursue a prompt payment claim for interest penalties and attorney's fees. The lien protects the principal amount owed. The prompt payment claim recovers the cost of late payment. GCs facing both actions face compounded legal costs.

What is the statute of limitations for prompt payment claims? Statutes of limitations vary by state, typically ranging from 2 to 6 years from the date of the violation. This means a sub can file a claim for a late payment that occurred years ago. GCs should retain all payment records for at least the limitation period in every state where they operate.

Do prompt payment rules apply to material suppliers? In most states, yes. Prompt payment statutes cover subcontractors and material suppliers who have a direct contractual relationship with the GC. Second-tier suppliers (those who supply to the sub, not the GC) are typically not covered by the GC's prompt payment obligation but may have rights against their direct customer.

How does a GC recover interest from the owner for late payment? The same prompt payment statute that requires the GC to pay subs on time also requires the owner to pay the GC on time. When the owner pays late, the GC can demand interest at the statutory rate. Most statutes allow the GC to include interest charges in their next pay application. If the owner refuses to pay interest, the GC can file a prompt payment claim against the owner.

Are there federal grants for states that strengthen prompt payment enforcement? No direct grants exist, but the Federal Highway Administration requires states receiving federal highway funding to maintain prompt payment provisions that meet minimum standards. States that weaken their prompt payment laws risk losing federal infrastructure funding, which creates strong incentive for maintaining or strengthening enforcement.

Should GCs include prompt payment commitments in their bid proposals? Yes. Including specific payment timeline commitments in bid proposals differentiates your company from competitors who make vague promises. State your average days-to-payment, your on-time payment percentage, and your dispute resolution timeline. Quantifiable commitments carry more weight than general statements about payment practices.

Automate Your Prompt Payment Compliance

SubcontractorAudit tracks payment deadlines across all 50 states, generates compliance alerts, and produces audit-ready documentation for every project. Request a demo to see how the platform answers your prompt payment questions with automated compliance.