Liquidated damages sit quietly in the contract for most of a project and then decide the margin in the last month. The contractor who finishes late is rarely surprised that the clause exists. The surprise is how much of the charge could have been avoided by reading five lines before the bid and sending a one-page letter the week each delay happened.
In this article
What the clause actually is
Liquidated damages are a fixed amount per day, written into the contract, that the contractor owes the owner for each day the project finishes late. The number is agreed in advance because the owner's real losses from delay — lost rent, extended financing, a delayed store opening — are hard to prove after the fact.
Courts in most US jurisdictions generally enforce the clause when the daily amount was a reasonable estimate of likely damages at the time of signing, and are more skeptical when it looks like a penalty meant to punish. That distinction is legal territory, and it varies by state — but it explains why the number should be questioned before signing, not after the job is late.
Read these five lines before you bid
- The daily amount. Is it proportional to the project, or copied from a larger job?
- What date triggers it. Substantial completion and final completion are very different dates.
- A cap. Often a percentage of the contract value. No cap means unlimited exposure.
- Exclusive remedy. Whether LDs replace the owner's right to claim actual delay damages, or come on top.
- Notice requirements for requesting time extensions — usually short and strictly enforced.
Price the risk. A $1,500 per day clause on a tight schedule is a real cost. It belongs in the bid as contingency or schedule float, not in the hope column.
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Excusable delay only counts if you asked
Owner changes, late design answers, differing site conditions and unusually severe weather typically entitle the contractor to more time. But the extension is rarely automatic. Most contracts require written notice within a set number of days of the delay event, and a contractor who waited until the end of the job to ask often loses the right entirely.
The discipline is boring and decisive: daily reports that record the cause, a notice letter the week it happens and an updated schedule showing the impact on the critical path.
Flowing it down to subs
A GC facing LDs usually passes a proportional version to subcontractors whose work drives the schedule. Done fairly, it aligns everyone. Done carelessly — the full owner rate pushed onto a small trade — it produces subs who either refuse the job or price it into every bid.
A late finish in numbers
A $3.2 million retail build with LDs of $1,200 per day finished 41 days after the contract completion date:
- Exposure before extensions: $49,200
- Documented and noticed on time: 14 days of owner-caused design delay and 9 days of severe weather
- LDs actually assessed on 18 days: $21,600
The 23 days recovered were worth $27,600 — and every one of them came from a notice letter sent within the week, not from anything argued at closeout.
Review your delay exposure before the next bid
Send us the delay and LD clauses from your current contract. We will show you the exposure and where the notice deadlines sit.
Frequently asked questions
What are liquidated damages in construction?
Liquidated damages are a predetermined amount, usually stated per calendar day, that a contractor agrees to pay the owner for each day the project is completed after the contractual completion date. They exist because an owner's actual losses from delay, such as lost rental income, extended financing costs, delayed business operations or temporary facilities, can be difficult and expensive to prove after the fact. By agreeing on the number up front, both parties avoid that dispute. In many US jurisdictions, courts generally enforce these clauses when the daily amount was a reasonable forecast of likely damages at the time the contract was signed and actual damages were hard to estimate, and they may refuse to enforce an amount that functions as a penalty. Because the rules differ by state and by contract language, contractors should have significant clauses reviewed by a construction attorney.
How can a contractor avoid paying liquidated damages?
The most effective protection starts before the contract is signed: check the daily amount, the completion milestone that triggers it, whether there is a cap, whether LDs are the owner's exclusive remedy for delay, and how quickly time extension requests must be submitted. Build realistic schedule float and contingency into the bid when the clause is aggressive. During the project, record the cause of every delay in daily reports, send written notice within the contract's deadline whenever an owner change, design issue, differing site condition or qualifying weather event affects the work, and update the schedule to show the impact on the critical path. Many contractors lose valid extensions not because the delay was their fault, but because notice was late or undocumented. Specific rights depend on the contract and state law.
Can liquidated damages be passed to subcontractors?
Yes, general contractors commonly include flow-down provisions that make subcontractors responsible for liquidated damages to the extent their work caused the delay. The fair version is proportional: it ties the subcontractor's liability to delays they actually caused and often sets a cap related to the value of their subcontract. Problems arise when a GC pushes the full owner rate onto a small trade regardless of cause, which can make subcontractors decline the work, inflate their bids or dispute every assessment. Subcontractors should read the flow-down language carefully, confirm how responsibility for concurrent delays is allocated, and follow the same notice requirements the GC has with the owner, since a missed notice at the sub level can leave them without an extension even when the owner grants one.