Error in Motive in Inheritance Law

Error in Motive

An error in motive in inheritance law occurs when the testator has made a testamentary disposition based on a specific motive that subsequently proves to be objectively incorrect. This can be the case, for example, if the testator proceeded from false facts. Unlike contract law, inheritance law in certain cases permits the challenge or adaptation of a disposition if the erroneous motive was demonstrably the sole decisive factor for the last will.

Inheritance law here follows the theory of will, where the actual will of the testator is decisive, not the reliance of a recipient of a declaration.

An error in motive is a mistake regarding the internal motive for a disposition. If the testator made a will due to an incorrect reason, the disposition can be challenged under certain conditions.

Legal Basis

The challenge of a disposition due to an error in motive is regulated in § 572 ABGB. The norm clarifies: A disposition generally remains valid, unless it is based exclusively on a false motive.

For this error to be legally significant, all requirements must be met:

• Objectively False Fact: The error must relate to a fact that was verifiably false (not merely a subjective assessment or a value judgment).
• Exclusive Causality: The error must have been the sole motive for the disposition.
• Demonstrability: The party initiating the challenge must fully prove the error and its sole significance.

Sebastian Riedlmair
Harlander & Partner Attorneys „Wer sich auf einen Motivirrtum beruft, muss das gesamte innere Bewegungsgefüge des Erblassers rekonstruieren. Diese Aufgabe ist anspruchsvoll und selten eindeutig.“

Distinction from other Forms of Error

Not every error leads to the contestability of a testamentary disposition. Austrian inheritance law distinguishes between several types of error, each with its own legal consequences.

A declaration error occurs when the testator has declared something other than what they actually intended. An example of this is the confusion of names or terms. In such cases, a challenge is possible.

A content error occurs when the testator misunderstands the meaning of their declaration, for example, assessing a legal consequence of their words differently than it actually is. This error can also lead to contestability if it is material.

In contrast, an error in motive does not refer to the declaration or its content, but to the testator’s internal motive. Such an error is only relevant if the motive was the sole decisive factor for the disposition. If the erroneous motive was merely a contributing factor, the disposition remains valid.

Not every error regarding legal contexts is legally relevant. Actual errors are decisive, not legal misjudgments.

Finally, falsa demonstratio must be clearly distinguished from all forms of error: If the testator merely errs in the designation of a person or thing, but clearly means the correct one, the disposition remains valid. Here, the principle applies that not what is said, but what is actually intended, is decisive.

Requirements for a Valid Challenge

1. Mistake of Fact

Only an error regarding an objectively ascertainable circumstance is permissible. Mere opinions, moral evaluations, or character assessments are not sufficient. The Supreme Court emphasizes: “An error in motive can only ever be based on objectively verifiable facts, not on subjective value judgments.”

2. Exclusivity of the Motive

A challenge is only possible if the erroneous motive was solely decisive. If there was even one other motive (e.g., gratitude, sense of duty, tradition), the challenge is excluded. This narrow interpretation serves legal certainty and prevents speculative conclusions about the motivation.

3. Burden of Proof and Means of Proof

The challenging party bears the full burden of proof. The error does not have to be stated in the will, but can be proven by external evidence such as letters, meeting minutes, or witness statements. The Supreme Court has clarified that documentation in the will is not mandatory.

Important: An adjustment due to an error in motive may never lead to a higher bequest than originally intended. If the testator erroneously bequeathed too much, the disposition can be corrected or revoked. If, however, they bequeathed too little, this amount may not be subsequently increased. An expansion of the benefit through judicial interpretation is excluded.

4. Materiality and Legal Consequence

The legal effect of an error in motive depends on how strongly the erroneous motive influenced the last will. If the false motive was the sole and decisive reason for the disposition, the error is considered material. In this case, the disposition can be completely revoked because it would not have been made without this motive.

If, however, there was another, correct reason for the decision alongside the error, the error is immaterial. In this case, the disposition generally remains in effect, but its content can be adjusted. A complete revocation is not possible.

An adjustment may never lead to a greater financial advantage. In the case of an overly generous bequest, the disposition can be reduced or eliminated. If, however, too little was bequeathed, a subsequent increase is excluded. An increase to the benefit of the beneficiary is legally excluded.

Relevant Special Rule

This special case particularly concerns unconsidered descendants: If the testator did not consider a child or a descendant entitled to a forced share due to ignorance, it is legally presumed that they would have done so if they had known. The disposition can thereby be automatically revoked or adjusted.

Statute of Limitations

The challenge of a disposition due to error is subject to the following deadlines:

• 3 years from knowledge of the error and its legal significance
• A maximum of 30 years after the testator’s death

After these deadlines expire, judicial enforcement is no longer possible.

Typical Case Scenarios in Practice

Disinheritance Due to False Suspicion

A testator believes his daughter embezzled money and excludes her from the inheritance. Later, it turns out that the accusations were unfounded. If this error was the sole motive, the disposition can be challenged.

Bequest out of Pity

A man bequeaths a house to his caregiver because he believes she is destitute. In reality, she owns several properties. If it is proven that only this error led to the bequest, a challenge is possible.

Overlooked Descendants

An illegitimate child is not considered when the will is made because the testator was unaware of their existence. It is presumed that this child would have been considered equally.

Misdescription versus Error in Motive

The testator names “my nephew Franz” in the will, but means the son of a close friend. This is not a question of challenge, but a case of falsa demonstratio. In this case, what is written is not decisive, but what is actually intended.

No Challenge for Change of Mind

If the testator changes their mind after making the will without amending the document, the disposition remains valid. A change of mind is not an error in the legal sense. Anyone who changes their mind must actively revoke or make a new disposition.

Your Benefits with Legal Assistance

Inheritance disputes due to error are among the most complex areas of conflict in inheritance law. Often, subtle distinctions are crucial. For example, whether a motive was truly the sole decisive factor or merely a secondary reason. The distinction between misdescription and genuine error is also legally delicate.

An experienced lawyer can

• if necessary, have the disposition adjusted or declared void.
• examine the prospects of a challenge,
• comply with judicial deadlines and formal requirements and

Frequently Asked Questions – FAQ