The general rule under Norwegian law is that agreements must be honored – the well-established principle of pacta sunt servanda. Nevertheless, there are situations in which a contract may be declared wholly or partially invalid. In this article, we examine the circumstances that may cause an agreement to lose its legal effect.
What is contractual invalidity?
When a contract is invalid, it means that it cannot be enforced as originally intended. Invalidity may affect the entire agreement or only certain parts of it.
As a general principle, the ground for invalidity must exist at the time the agreement is entered into or before the relevant declaration of intent comes to the other party's knowledge.
Traditionally, Norwegian contract law distinguishes between:
- Strong grounds for invalidity, which may be invoked even if the other party acted in good faith.
- Weak grounds for invalidity, which generally require that the other party knew or ought to have known of the circumstances giving rise to invalidity.
A classic example of a strong ground for invalidity is duress involving serious coercion, whereas several of the invalidity provisions of the Norwegian Contracts Act require that the other party acted in bad faith.
Four main categories of grounds for invalidity
The grounds for invalidity may broadly be divided into four categories:
- Defects in a party's legal capacity
- Defects in form
- Defects in the formation of the agreement
- Defects in the content of the agreement
1. Defects in a party's legal capacity
For an agreement to be binding, the parties must have the legal capacity to enter into it.
Minors
As a general rule, persons under the age of 18 may not independently enter into legal transactions or dispose of their financial assets. Agreements entered into by minors may therefore be invalid if the transaction falls outside what is permitted by law.
Persons under guardianship
A person who has wholly or partially been deprived of legal capacity may not validly enter into agreements beyond the authority he or she has retained. If such a person acts outside that authority, the agreement may be invalid.
Mental incapacity
Norwegian law also recognizes severe mental illness as an independent ground for invalidity where the illness has influenced the relevant declaration of intent. This is generally considered a strong ground for invalidity, meaning that the agreement may be set aside even if the other party acted in good faith.
2. Defects in form
Norwegian contract law is based on the principle of freedom of form. In most cases, oral agreements are therefore just as binding as written ones.
However, important exceptions exist where legislation imposes specific formal requirements. Examples include:
- Real estate brokerage engagements, which must be entered into in writing.
- Termination of residential lease agreements, which must satisfy specific requirements regarding form and content.
- Termination of employment relationships, which must comply with the formal requirements of the Working Environment Act.
Failure to comply with such statutory formalities may result in the transaction being invalid.
3. Defects in the formation of the agreement
A significant part of the rules on invalidity concerns circumstances surrounding the formation of the contract itself.
Duress
Contracts entered into as a result of unlawful pressure or threats may be set aside. A distinction is made between:
- Unlawful coercion, where invalidity generally requires that the other party knew or ought to have known about the coercion.
- Serious duress, involving physical force or grave threats, which may result in invalidity even against a party acting in good faith.
Fraud and concealment
If one party deliberately provides false information or withholds material information in order to induce the other party to enter into the agreement, the contract may be invalid.
The rules also imply that, in certain circumstances, a duty to disclose information exists. Consequently, silence may, depending on the circumstances, be treated in the same manner as an outright misrepresentation.
Exploitation of a vulnerable situation
An agreement may also be set aside where one party improperly exploits another person's:
- financial distress,
- inexperience,
- recklessness,
- or dependency.
Such cases are assessed on their individual facts, but the core issue is whether one party has obtained an unfair advantage by exploiting the vulnerable position of the other.
Mistakes, false documents and forgery
A declaration of intent may be invalid if it is based on clerical errors or other obvious mistakes that the other party understood or ought to have understood.
Likewise, a person whose name has been misused is generally not bound by a false declaration. The same largely applies in cases involving forged documents.
Dishonest conduct
Section 33 of the Norwegian Contracts Act functions as a general safeguard against dishonest conduct. The provision applies where it would be contrary to good faith and fair dealing to enforce the agreement.
The provision often becomes relevant in situations where other invalidity rules do not fit perfectly, yet enforcement of the agreement would nevertheless appear clearly unreasonable.
4. Defects in the content of the agreement
Even where an agreement has been properly formed, its content may be problematic.
Agreements contrary to law or public morality
Agreements that violate legislation or fundamental public policy considerations may be invalid. This principle has deep historical roots in Norwegian law.
Unreasonable contract terms – Section 36 of the Contracts Act
An important statutory rule on invalidity is Section 36 of the Norwegian Contracts Act. The provision empowers the courts to:
- set aside unreasonable agreements,
- modify specific contractual terms,
- or adjust the contractual relationship in order to achieve a more reasonable outcome.
The purpose is to create balance between the parties and to prevent unreasonable consequences of contractual freedom. When assessing whether Section 36 applies, courts may consider, among other things:
- the content of the agreement,
- the parties' relative positions,
- the circumstances surrounding the conclusion of the agreement,
- subsequent events,
- and other relevant circumstances.
t is important to note that the threshold is high. It is not sufficient that an agreement appears disadvantageous to one party. The agreement must be unreasonable to enforce.
Conclusion
Although the general rule is that contracts must be honored, there are a number of situations in which an agreement may be invalid or may be wholly or partially set aside. Such assessments are often complex and require a careful analysis of both the factual circumstances and the applicable legal rules.
