Prompt Payment Acts: Statutory Deadlines and Interest You Can Enforce

Prompt-payment statutes establish deadlines for each tier of the construction chain to pay the next. On federal projects, the Prompt Payment Act and its flow-down requirements govern; nearly every state has its own public prompt-payment act, and a large and growing number also regulate private work. The statutes exist because money tends to stall at each handoff, and the legislatures decided to put a clock and a penalty on the delay.

A typical structure requires the owner to pay the contractor within a set period after a proper pay application — often 30 days — and the contractor to pay subcontractors within a few days of receiving the owner's payment, commonly 7 to 10 days. The chain is designed so that money keeps moving down to the parties who actually performed the work.

When payment is wrongfully withheld or late, prompt-payment acts commonly impose statutory interest, frequently at rates well above what a contractor could earn elsewhere. Texas, for instance, sets its public-project prompt-payment interest rate annually; for fiscal year 2026 (September 1, 2025 through August 31, 2026) the rate is 8.5% per year, simple rather than compounded, and it begins accruing the day after the statutory deadline passes.

Many states also allow the prevailing party in a prompt-payment collection action to recover attorney's fees. That fee-shifting is what makes the statutes practically enforceable: it turns a small, slow-paying balance into a claim worth bringing, and it gives the contractor leverage to demand payment without litigation.

Prompt-payment acts generally permit a payer to withhold only for good-faith, documented disputes, and often only the disputed amount — not the entire payment. Withholding a full progress payment over a minor punch-list item or an unrelated back-charge can itself violate the statute and start interest running on the wrongly withheld sum.

This matters at review because contracts sometimes grant the upstream party broad, discretionary withholding rights ('Contractor may withhold any amount it deems appropriate'). Such language can collide with the statute, which limits withholding to bona fide disputes and may render the broad contractual right unenforceable.

A crucial feature of many prompt-payment statutes is that the rights are non-waivable: a contract clause purporting to waive interest on late payment, or to extend the statutory deadlines, may be void. So a 'no interest on late payment' provision should not be taken at face value — the statute may override it. Knowing the applicable act strengthens the subcontractor's collection position considerably.

Prompt-payment rules also frequently govern the release of retention, imposing deadlines for paying withheld funds after substantial completion or final acceptance, with the same interest and fee penalties for delay. Retention and prompt-payment provisions should be read together.

Confirm the contract's payment-timing language is consistent with — and does not purport to waive — the governing prompt-payment act, and that any contractual withholding right is limited to good-faith disputes. Identify the statutory interest rate and fee provisions so the contractor knows the real cost of late payment and can invoke it.

The prompt-payment act is often the contractor's most useful, least appreciated remedy: it converts the vague frustration of slow payment into a concrete, interest-bearing, fee-shifting claim grounded in statute rather than in the contract the other side drafted.