Incidental vs Consequential Damages Under Delaware Law

Under Delaware law, the difference between incidental vs consequential damages comes down to how far the loss sits from the breach itself. Incidental damages are the immediate, out-of-pocket costs you incur dealing with the other side’s failure to perform. Consequential damages are the downstream losses the breach set in motion, most often lost profits. Both can be recovered in the right case, but consequential damages carry a heavier burden of proof and are frequently waived by the contract itself.

Incidental Damages: The Cleanup Costs

Delaware’s Uniform Commercial Code defines a buyer’s incidental damages as the reasonable expenses incurred because the seller didn’t perform. That covers inspection costs, shipping charges to return rejected goods, storage fees while you arrange a replacement, and broker commissions or other charges tied to finding a substitute supplier. The statute uses a deliberately open phrase — “any other reasonable expense incident to the delay or other breach” — giving courts room to include costs that don’t fit a tidy checklist.¹

Sellers have a parallel provision. When a buyer breaches, the seller can recover reasonable costs for stopping delivery, storing or reshipping goods, and arranging a resale.²

These are the easy damages. Courts don’t require extended argument about whether the costs were foreseeable, because they’re the obvious consequence of any commercial breach. You spent money you wouldn’t have spent if the other side had performed. Keep the receipts and you can usually recover.

Consequential Damages: The Downstream Losses

Consequential damages are the bigger, harder category. Under Delaware’s UCC, a buyer’s consequential damages include any loss flowing from needs the seller knew about, or should have known about, when the contract was signed, as long as the buyer couldn’t reasonably have avoided the loss by finding a substitute. The statute also covers personal injury or property damage caused by a breach of warranty.¹

In practice, these losses usually show up as lost profits, lost business opportunities, or operational disruptions that ripple outward from the breach. A manufacturer who can’t ship product because a supplier delivered defective components may claim the revenue it lost from its own customers. A retailer who misses a seasonal window because goods arrived late may claim sales it would have made during the peak.

Delaware applies the foreseeability framework from Hadley v. Baxendale to both UCC and non-UCC contracts. You can recover consequential damages only if the losses were reasonably foreseeable when the contract was formed — either because they’re the natural result of any similar breach, or because the breaching party knew about your specific circumstances that made those losses likely. This is where many claims collapse. If you never told the other side about a time-sensitive resale commitment or a downstream contract that depended on delivery, you’ll struggle to recover losses tied to those arrangements.

Why Sellers Get Less Than Buyers

One detail catches a lot of sellers off guard. Delaware’s UCC expressly grants buyers the right to consequential damages but gives sellers only incidental damages. The seller’s statutory remedy is the difference between the contract price and market price, plus incidental damages. If that formula doesn’t make the seller whole, the code allows recovery of lost profit including reasonable overhead, but it still references only incidental damages, not consequential ones.³

That doesn’t mean a seller can never recover downstream losses. The path runs through common-law contract principles instead of the UCC’s statutory framework, and the evidentiary burden is steeper. If you’re selling into a situation where a buyer’s breach could cost you more than the price of the deal, address the gap in the contract itself. A well-drafted clause can grant the seller consequential damages even though the default UCC rules don’t.

How Contracts Change the Default Rules

Before you count on any of the above, read the contract. Delaware gives parties broad freedom to shape their damages exposure, and courts will enforce what you agreed to.

Consequential Damages Waivers

Many commercial agreements contain a mutual waiver of consequential damages, and Delaware’s UCC expressly permits it so long as the limitation is not unconscionable.⁴ Between businesses, an exclusion of commercial losses is presumed enforceable. For personal injury involving consumer goods, the presumption flips and the limitation is presumed unconscionable.

Courts read exclusion clauses strictly, and the wording matters. If a contract excludes “damages” without specifying consequential damages, expect a fight over the scope. Delaware applies contra proferentem, construing ambiguous language against the party that drafted it, so a vague waiver drafted by the stronger party can be read narrowly against that same party.

Liquidated Damages

Some contracts bypass the damages question entirely by setting a predetermined amount payable on breach. Delaware allows liquidated damages but applies a two-part test: the actual damages must have been difficult to estimate when the contract was signed, and the stipulated amount must be a reasonable forecast of the anticipated harm. A clause that fails either prong is void as a penalty.⁵

These clauses cut both ways. They save you the cost of proving actual losses, but if your real damages turn out to be far higher, you’re stuck with the agreed number. And if a court strikes the clause as a penalty, the certainty you were counting on disappears and you have to prove damages from scratch.

When a Limited Remedy Fails

If a contract limits you to a specific remedy, such as replacement of defective goods, and that remedy fails to actually work, Delaware’s “failure of essential purpose” doctrine restores the full range of UCC remedies, including consequential damages. A seller who promises to replace defective components but can’t or won’t actually do so can’t simultaneously hide behind a clause capping damages at replacement cost.

What You Have to Prove

Delaware requires damages to be proven with reasonable certainty, but the standard is more forgiving than it sounds. In SIGA Technologies, Inc. v. PharmAthene, Inc., the Delaware Supreme Court drew the line this way: the fact of damages must be established with reasonable certainty, but the amount can be an estimate. The court awarded $113 million in expectation damages after finding the plaintiff met that burden, even though the underlying projections involved real uncertainty. The court also noted that a wrongdoer shouldn’t benefit from uncertainty its own breach created.⁶

The practical takeaway: courts won’t reject your claim because you can’t nail the number to the penny. But you need solid business records, financial projections grounded in actual operating data, and expert testimony that connects the breach to specific losses. Claims built on hypothetical scenarios without documentation get denied.

You also have a duty to mitigate. Delaware law requires the non-breaching party to take reasonable steps to limit its own losses — find a substitute supplier, cover an order elsewhere, take practical steps instead of watching damages pile up. The breaching party carries the burden of proving you failed to mitigate, and the standard is reasonableness, not perfection. A good-faith effort that didn’t fully work won’t count against you.

Deadline to Sue and Interest

You have three years from the date of breach to file a contract claim in Delaware. The clock starts when the breach occurs, even if you don’t discover it right away.⁷

Larger deals get flexibility. Written contracts involving at least $100,000 can specify a longer limitations period, up to a maximum of 20 years from the date the claim accrued.⁷ You’ll see this often in M&A agreements and long-term commercial contracts where breaches may not surface for years.

Delaware also awards prejudgment interest as a matter of right in contract cases. Interest accrues from the date of the breach at a statutory rate of 5% above the Federal Reserve discount rate. The longer the breaching party drags things out, the larger the bill gets.