Punitive damages, or exemplary damages, are damages assessed in order to punish the defendant for outrageous conduct and/or to reform or deter the defendant and others from engaging in conduct similar to that which formed the basis of the lawsuit.Restatement of Torts, Second § 908(l). Although the purpose of punitive damages is not to compensate the plaintiff, the plaintiff will receive all or some of the punitive damages in award.

Punitive damages are often awarded if compensatory damages are deemed to be an inadequate remedy by themselves. The court may impose them to prevent undercompensation of plaintiffs and to allow redress for undetectable torts and taking some strain away from the criminal justice system.See Kemezy v. Peters, 79 F.3d 33 (7th Cir. 1996) (Posner, J.) Punitive damages are most important for violations of the law that are hard to detect.

However, punitive damages awarded under court systems that recognize them may be difficult to enforce in jurisdictions that do not recognize them. For example, punitive damages awarded to one party in a US case would be difficult to get recognition for in a European court in which punitive damages are most likely to be considered to violate ordre public.

Because they are usually paid in excess of the plaintiff's provable injuries, punitive damages are awarded only in special cases, usually under tort law, if the defendant's conduct was egregiously insidious. Punitive damages cannot generally be awarded in contract disputes. The main exception is in insurance bad faith cases in the US if the insurer's breach of contract is alleged to be so egregious as to amount to a breach of the "implied covenant of good faith and fair dealing", and is therefore considered to be a tort cause of action eligible for punitive damages (in excess of the value of the insurance policy).

According to deterrence theory the optimal ratio between punitive and compensatory damages is the multiplicative inverse to the clearance rate and conviction rate. This multiple avoids recidivism, overdeterrence and escaping legal liability due to the dark figure of crime.

National applications

Australia In Australia, punitive damages are not available for breach of contract,Gray v Motor Accident Commission HCA 70, (1998) 196 CLR 1 but are possible for tort cases to the extent that such claims are not prohibited or restricted by statue (e.g. personal injury claims arising from negligence).

The law is less settled regarding equitable wrongs. In Harris v Digital Pulse Pty Ltd,Harris v Digital Pulse Pty Ltd NSWCA 10, (2003) 197 ALR 626 the defendant employees knowingly breached contractual and fiduciary duties to their employer by diverting business to themselves and misusing its confidential information. The New South Wales Court of Appeal held that punitive damages are not available both for breach of contract and breach of fiduciary duty. Heydon JA (as he then was) said there is no power to give punitive damages in respect of a claim in equity, although he was content to decide the case on the narrower ground that there is no power to award punitive damages for the specific equitable wrong in issue. Spigelman CJ concurred, although he emphasized that the contractual character of the fiduciary relationship in question, and refrained from deciding on whether punitive damages would be available in respect of equitable wrongs more analogous to torts. Mason P dissented and opined that there was no principled reason to award punitive damages in respect of common law torts but not analogous equitable wrongs.

Canada In Canada, punitive damages may be awarded in exceptional cases for "malicious, oppressive and high-handed" misconduct.Whiten v. Pilot Insurance Co., 2002 SCC 18 (CanLII), 1 SCR 595, at para 36. The Supreme Court of Canada set out 11 principles to guide judges and juries for awarding punitive damages in the leading case Whiten v Pilot Insurance Co 2002 SCC 18. The principles are not intended to form a checklist or be mandatory, but instead is to be considered based on the facts of each case.Whiten v. Pilot Insurance Co., 2002 SCC 18 (CanLII), 1 SCR 595, at para 95.

England and Wales In England and Wales, exemplary damages in tort cases are limited to cases in which at least one of the circumstances set out by Lord Devlin in the leading case of Rookes v Barnard has been met:Rookes v Barnard AC 1129, 1 All ER 367

Oppressive, arbitrary or unconstitutional actions by the servants of government. Where the defendant's conduct was "calculated" to make a profit for himself. Where a statute expressly authorises the same.

Rookes v Barnard has been much criticised and has not been followed in Canada, Australia or New Zealand, despite English cases often being influential in other Commonwealth countries and with the Privy Council. It was strongly criticised by the Court of Appeal in Broome v Cassell, but on appeal the House of Lords upheld Rookes v Barnard.

The second Rookes category—where punitive damages are allowed to remedy conduct by a defendant calculated to make a profit—was applied in a defamation context in Broome v Cassell, and is frequently used in tort actions by tenants against landlords, as well as in cases of insurance fraud.

Examples of statutory authorisation of punitive damages (the third Rookes category) include section 34 of the Crime and Courts Act 2013, which allows claimants to seek, and courts to grant, exemplary damages against news media publishers when they show "a deliberate or reckless disregard of an outrageous nature for the claimant's rights". Some judicial dispute exists as to whether statutory provisions Copyright, Designs and Patents Act 1988 (and predecessors thereof) amount to a statutory authorisation.

Exemplary damages go beyond the philosophical aims of a contractual remedy and are not available as damages for breach of contract. Lord Atkinson said, in Addis v Gramophone Co Ltd:

In 1997 the Law Commission recommended that punitive damages should never be available for breach of contract.

Germany German courts do not award punitive damages and consider foreign punitive damages unenforceable to the extent that the payment would exceed the damages plus an allowance for reasonable defense costs big enough so that the plaintiff would get a full reimbursement of its loss but not more.

Japan Japanese courts do not award punitive damages as a matter of public policy, and Japanese law prohibits the enforcement of punitive damage awards obtained overseas.

In Japan, medical negligence and other species of negligence are governed by the criminal code, which may impose much harsher penalties than civil law. For instance, many causes of action which would subject a defendant to a potential punitive damage award in the U.S. would subject the same individual to prison time in Japan.

New Zealand In New Zealand it was held in Donselaar v DonselaarDonselaar v. Donselaar 1 NZLR 97 and confirmed in Auckland City Council v. BlundellAuckland City Council v. Blundell 1 NZLR 732 that the existence of the Accident Compensation Corporation did not bar the availability of exemplary damages. In Paper Reclaim Ltd v Aotearoa International LtdPaper Reclaim Ltd v Aotearoa International 3 NZLR 188 it was held that exemplary damages are not to be awarded in actions for breach of contract but the court left open the possibility that exemplary damages might be available where the breach of contract is a tort.

In 2010, in Couch v Attorney-General the New Zealand Supreme Court barred exemplary damages for cases of negligence unless the defendant acts intentionally or with subjective recklessness.Couch v Attorney-General [2010] NZSC 27

Punitive damages can also be awarded for equitable wrongs. In Acquaculture Corporation v New Zealand Green Mussel Co Ltd,Acquaculture Corporation v New Zealand Green Mussel Co Ltd 3 NZLR 299 the majority of the New Zealand Court of Appeal held that in addition to compensation, punitive damages could be awarded for breach of confidence, albeit that, on the facts, they were not merited. Similarly, in Cook v Evatt (No.2),Cook v Evatt (No.2) 1 NZLR 676 Fisher J in the New Zealand High Court added exemplary damages of NZ$5,000 to an account of profits of over NZ$20,000 for breach of fiduciary duty.

People's Republic of China In very few industries, punitive damages could be awarded in either contractual or tort case, except a tort relevant to product defraud or defect. Article 49 of the PRC Law on Protection of Consumer Rights and Interests enacted on October 31, 1993, provides the rule that any consumer is entitled to a recovery of double the purchase price of products or service from the seller or service provider against their defraud. Successful cases have been widely reported in this regard.

Article 96 of the PRC Law on Food Safety adopted on February 28, 2009, raises the punitive damages to ten times the purchase price added to the compensatory damages that the victim has already claimed from the producer or seller for food with poor quality not compliant to food safety standards. Such a substantial statutory amount considered by the legislative organ is based on several extremely serious food quality incidents in the past two years, such as the notorious Sanlu tainted milk powder case.

Application of the punitive damage rule is further expanded with the enactment of the PRC Law on Tort Liability effective as of July 1, 2010. This new law sets forth that a victim is entitled to claim punitive damages from any manufacturer or seller expressly aware of the defects in products but still produces or sells them if it results in death or heavy injuries. Since this is a somewhat new law so far, no further explanatory regulation regarding a detailed amount and applicable scope is promulgated guiding the application of this rule, so a court judge may have discretional power to decide punitive damages case by case under this new law.

United States Punitive damages are a settled principle of common law in the United States.Grimshaw v. Ford Motor Co. (Ford Pinto Case), 174 Cal. Rptr. 348 (Cal. Ct. App. 1981) (Tamura, J.), subhead VI. They are generally a matter of state law (although they can also be awarded under federal maritime law), and thus differ in application from state to state. In many states, including California and Texas, punitive damages are determined based on statute; elsewhere, they may be determined solely based on case law. Many state statutes are the result of insurance industry lobbying to impose "caps" on punitive damages; however, several state courts have struck down these statutory caps as unconstitutional. They are rare, occurring in only 6% of civil cases that result in a monetary award. Punitive damages are entirely unavailable under any circumstances in a few jurisdictions, including Nebraska, Puerto Rico, and Washington.

The general rule is that punitive damages cannot be awarded for breach of contract, but if an independent tort is committed in a contractual setting, punitive damages can be awarded for the tort.Formosa Plastics Corp. USA v. Presidio Engineers & Contractors, Inc. 960 S.W.2d 41 (Tex. 1998) Although state laws vary, punitive damages are usually allowed only when the defendant has displayed actual intent to cause harm (such as purposefully rear-ending someone else's car), rather than in cases of mere negligence, or causes an injury through action taken in reckless disregard for the lives and safety of others.