Latin term meaning "from the beginning"
Ab initio (/ˌæb ɪˈnɪʃioʊ/ AB in-ISH-ee-oh) is a Latin term meaning "from the beginning" and is derived from the Latin ab ("from") + initio, ablative singular of initium ("beginning"). Ab initio was … Wikipedia
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Wikipedia
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Ab initio - Wikipedia
2 weeks ago - An insurer facing a claim from an insured who had deceived the insurer on a material fact would claim that the insurance contract was void ab initio; it was null and void from the beginning and that since there was no legally enforceable contract, the insurer ought not to have to pay.
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Wikipedia
en.wikipedia.org › wiki › Void_(law)
Void (law) - Wikipedia
March 21, 2026 - For example, in many jurisdictions where a person signs a contract under duress, that contract is treated as being void ab initio. The frequent combination "null and void" is a legal doublet. The term is frequently used in contradistinction to the term "voidable" and "unenforceable". Black's Law Dictionary defines 'void' as "[n]ull; ineffectual; nugatory; having no legal force or binding effect...." In the case of a contract, this means there is no legal obligation, therefore there can be no breach of contract since the contract is null, but there may be an implied contract which requires the recipient of goods or services provided to pay their reasonable value.
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What are some examples of contracts that may be considered ab initio?
Examples of contracts that may be considered ab initio include those that involve illegal activities, such as contracts for the sale of illegal drugs or contracts that involve fraudulent misrepresentation.
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clio.com
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Ab Initio | Legal Dictionary | Clio
What are the consequences of a contract being deemed ab initio?
When a contract is deemed void ab initio, it is considered null and void from the beginning. This means that neither party can enforce the terms of the contract, and any obligations or rights arising from the contract are extinguished.
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clio.com
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Ab Initio | Legal Dictionary | Clio
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Law Insider
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Void ab initio Definition | Law Insider
July 7, 2025 - Void ab initio means null from the beginning, whereas “voidable” is defined as valid until annulled, such as where a contract can be affirmed or rejected.
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Incorporated
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What Does Void Ab Initio Mean In Contract Law (Best Overview)
January 2, 2021 - How do you define the legal phrase void ab initio? To say that a legal document is void is to say that it is null. Therefore, a null document does not have any legal value, cannot bind a person or remain the basis of legal obligations.
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RunSensible
runsensible.com › dictionary of legal terms › ab initio
Ab Initio - RunSensible
December 8, 2023 - For example, if a contract is found ... a court may declare it void ab initio. Meaning that the contract is null and void from the beginning, and the parties are released from their obligations as if the contract never existed....
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Law Insider
lawinsider.com › clause › void-ab-initio
VOID AB INITIO Sample Clauses | Law Insider
July 10, 2025 - The 'Void Ab Initio' clause establishes ... In practice, this means that if certain conditions are met—such as misrepresentation, illegality, or lack of capacity—the agreement is treated as null and ......
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JustAnswer
justanswer.com › law › abz40-difference-judgment-void-its.html
Difference Between Void on Its Face and Ab Initio Judgment
April 4, 2017 - 'Ab initio' means the judgment is treated as invalid from the beginning. While both indicate invalidity, 'void on its face' focuses on apparent errors, whereas 'ab initio' emphasizes the judgment's nullity from inception.
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Clio
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Ab Initio | Legal Dictionary | Clio
When a contract is deemed void ab initio, it is considered null and void from the beginning. This means that neither party can enforce the terms of the contract, and any obligations or rights arising from the contract are extinguished.
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Publiccontractinginstitute
publiccontractinginstitute.com › void-ab-initio
VOID AB INITIO - Public Contracting Institute - Government Contracts Training
Government contractors must understand that there are certain times when a government contract is void ab initio¸ which means that the contract is null and void from the very beginning.
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Legal Synopsis
legalsynopsis.com › void-ab-initio
Void Ab Initio: Full Legal Definition and Meaning 2026
May 5, 2026 - Void ab initio refers to an act, contract, deed, or other legal instrument that is null and void from its inception, as though it never existed. The phrase originates from Latin, with “void” meaning having no legal effect and “ab initio” ...
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Cambridge Dictionary
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AB INITIO | definition in the Cambridge English Dictionary
void adjective (Definition of ab initio from the Cambridge Business English Dictionary © Cambridge University Press) ... When, therefore, the advent of language does take place, it is needless that this work of logical grouping should be recommenced ab initio. ... Any cause which renders a marriage null ab initio.
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AmazeLaw
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Void Ab Initio – A Comprehensive Overview - AmazeLaw
February 18, 2025 - Void ab initio contracts are inherently defective and unenforceable from the moment they are formed. They lack one or more essential elements necessary for legal validity. The contract’s nullity is absolute, and parties cannot ratify or cure ...
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CaseMine
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void+ab+initio+means | US Case Law | Law | CaseMine
Fox v. United States ... ...of election to do so, to avoid the legal relations created by the contract." Id. By contrast, "'void ab initio' means a bargain is null from the beginning, as from ...
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FasterCapital
fastercapital.com › content › Void-Ab-Initio--Exploring-the-Beginnings-of-Void-Contracts.html
Void Ab Initio: Exploring the Beginnings of Void Contracts - FasterCapital
When a contract is deemed void ab initio, it means that it is treated as though it never existed from the very beginning. This has significant legal consequences for all parties involved.
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The Law Dictionary
thelawdictionary.org › the law dictionary › articles › contracts
Why Ab Initio Is a Big Deal in Contract Law
July 20, 2022 - To put it in simpler terms, if ... that contract is considered invalid from the time it was written and/or signed (i.e., from the start of the contract) rather than from when the court declared it to be null or void...
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Barnes Walker
barneswalker.com › legal glossary › v › void ab initio legal nullity invalid
Void Ab Initio Legal Nullity Invalid | Legal Glossary | Barnes Walker
May 6, 2026 - Void ab initio: "void from the beginning," no legal effect, treated as never existing. Examples: no legal capacity, fraud/duress, bigamous marriage, and no jurisdiction. Cannot be: ratified, cured, or enforced. vs. voidable: valid until set ...
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UpCounsel
upcounsel.com › void-ab-initio-agreement
Check out this article...Void Ab Initio Meaning and Its Impact on Contracts
January 8, 2026 - Void ab initio contracts are treated as if they never existed—no rights or duties arise. Common examples include contracts involving fraud, minors, duress, or illegal subject matter.
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Fiveable
fiveable.me › all key terms › elementary latin › void ab initio
Void ab initio Definition for Elementary Latin | Fiveable
Void ab initio means that a contract is null from the beginning and has no legal effect whatsoever. In contrast, a voidable contract is initially valid but can be annulled at the discretion of one party due to certain conditions such as misrepresentation or undue influence.
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LawBhoomi
lawbhoomi.com › home › void ab initio meaning
Void Ab Initio Meaning
June 5, 2025 - ... The Latin phrase void ab initio translates directly to “void from the beginning.” In legal terms, it means that the document, act, or agreement in question was never valid, even from the moment it was created or executed.
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B&B Associates LLP
bnblegal.com › home › void ab initio
Void ab initio - Legal Maxim
February 28, 2025 - The State and Another, it was held that “Void means prospectively void and void ab initio means void from its very inception, or in other words, retrospectively void, the word void as used in Article 254(1) of the Constitution.